WO2016023237A1 - Liquid crystal display panel and manufacturing method therefor - Google Patents

Liquid crystal display panel and manufacturing method therefor Download PDF

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Publication number
WO2016023237A1
WO2016023237A1 PCT/CN2014/084636 CN2014084636W WO2016023237A1 WO 2016023237 A1 WO2016023237 A1 WO 2016023237A1 CN 2014084636 W CN2014084636 W CN 2014084636W WO 2016023237 A1 WO2016023237 A1 WO 2016023237A1
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WO
WIPO (PCT)
Prior art keywords
liquid crystal
electrode
substrate
display panel
protrusion structure
Prior art date
Application number
PCT/CN2014/084636
Other languages
French (fr)
Chinese (zh)
Inventor
郝思坤
Original Assignee
深圳市华星光电技术有限公司
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 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US14/381,010 priority Critical patent/US9235088B1/en
Publication of WO2016023237A1 publication Critical patent/WO2016023237A1/en

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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
    • G02F1/133—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
    • 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
    • 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

Definitions

  • the present invention relates to the field of liquid crystal display technology, and in particular, to a liquid crystal display panel and a method of fabricating the same.
  • Liquid crystal display panels are widely used in various electronic display devices, such as mobile phones, personal digital assistants (PDAs), digital cameras, computers, and notebook computers, which almost all use high-resolution color displays.
  • LCD screen usually includes TN (Twist Nematic) display panel, VA (Vertical Alignment) display panel, MVA (Multi-domain Vertical Alignment) display panel and IPS (In-plane) Switching) display panels, etc.
  • VA display panels are widely used in large-size liquid crystal displays due to their high aperture ratio, high resolution, wide viewing angle, and the like.
  • the pixel electrode 101 on the Array (array substrate) side is generally designed in a fishbone shape, and is divided into a plurality of regions to improve viewing angle characteristics, and CF (color filter substrate)
  • the common electrode 102 on the side is a monolithic strip-shaped transparent electrode.
  • the liquid crystal is aligned by the fishbone-shaped pixel electrode 101 so that the liquid crystal has a plurality of pretilt angles in different directions, thereby obtaining improved viewing angle characteristics.
  • the VA display panel of the pixel structure is not suitable for a high-resolution, small-sized portable display device, which is easy to cause penetration. The rate drops.
  • the prior art generally employs a pixel structure as shown in Figs. 3a and 3b in a small-sized VA display panel.
  • the display panel includes an Array substrate 31, a CF substrate 32, and a liquid crystal layer 33 of the Array substrate 31 and the CF substrate 32.
  • a pixel electrode 34 is disposed on a side of the Array substrate 31 adjacent to the liquid crystal layer 33, and a common electrode 35 is disposed on a side of the CF substrate 32 adjacent to the liquid crystal layer 33.
  • the pixel electrode 34 has no fishbone structure.
  • a circular hole structure 351 is disposed on the common electrode 35 of the CF substrate 32 to generate a wedge-shaped electric field by using the circular hole structure 351, thereby
  • the liquid crystal has a plurality of pretilt angles in different directions.
  • the pixel electrode 34 on the Array side has no fishbone structure, and only a dark line is generated at the position of the circular hole structure 351, which can avoid the fishbone electrode compared with the conventional fishbone electrode. The rate of penetration caused by the introduction is reduced.
  • the CF side has a circular hole structure 351, it is necessary to add a photomask to remove the electrode at the circular hole structure 351 during the manufacturing process to obtain the circular hole structure 351, which is disadvantageous in cost reduction.
  • the technical problem to be solved by the present invention is to provide a liquid crystal display panel and a method of manufacturing the same, which can improve the transmittance, reduce the number of masks, and reduce the cost.
  • a technical solution adopted by the present invention is to provide a liquid crystal display panel including a first substrate, a second substrate, and a liquid crystal layer between the first substrate and the second substrate; a first electrode is disposed on a side of the first substrate adjacent to the liquid crystal layer, a second electrode is disposed on a side of the second substrate adjacent to the liquid crystal layer, and a polymer monomer is further disposed in the liquid crystal layer;
  • the second substrate includes an opaque region, the opaque region is located in a vertical projection area of the first electrode, and the second electrode or the first electrode is provided with a protrusion structure, and the protrusion structure Located in a vertical projection area of the opaque region, the surface of the protruding structure is coated with an alignment film, the alignment film and the polymer monomer coacting to be located at the first electrode and the second
  • the liquid crystal molecules in the liquid crystal layer between the electrodes have a pretilt angle; the protrusion structure is a regular shape such that the liquid crystal layer between the first electrode and
  • the protruding structure is a cone, a truncated cone, a columnar body or a polygonal body, and the top end of the protruding structure is in contact with or not in contact with the inner surface of the opposite electrode.
  • the opposite electrode has no fishbone structure, protrusion and crack.
  • the second substrate is a color filter substrate, and the protrusion structure is disposed on the second electrode, and the protrusion structure is the same as the black matrix film layer, the color resist film layer or the photoresist spacer film layer. Made of materials.
  • the liquid crystal display panel further includes an upper polarizer and a lower polarizer whose absorption axes are perpendicular to each other, the upper polarizer is disposed on a side of the second substrate facing away from the liquid crystal layer, and the lower polarizer is disposed
  • the upper polarizer and the lower polarizer are circular polarizers on a side of the first substrate facing away from the liquid crystal layer.
  • a liquid crystal display panel including a first substrate, a second substrate, and a liquid crystal layer between the first substrate and the second substrate; a first electrode is disposed on a side of the first substrate adjacent to the liquid crystal layer, a second electrode is disposed on a side of the second substrate adjacent to the liquid crystal layer, and the second substrate includes an opaque region.
  • the opaque region is located in a vertical projection area of the first electrode, and the second electrode or the first electrode is provided with a protrusion structure, and the protrusion structure is located in a vertical projection area of the opaque region,
  • the surface of the protrusion structure is coated with an alignment film such that liquid crystal molecules in the liquid crystal layer between the first electrode and the second electrode have a pretilt angle.
  • the protrusion structure has a regular shape such that a liquid crystal layer located between the first electrode and the second electrode has two or more liquid crystal regions in which liquid crystal molecules are tilted in different directions.
  • the protruding structure is a cone, a truncated cone, a columnar body or a polygonal body, and the top end of the protruding structure is in contact with or not in contact with the inner surface of the opposite electrode.
  • the opposite electrode has no fishbone structure, protrusion and crack.
  • the second substrate is a color filter substrate, and the protrusion structure is disposed on the second electrode, and the protrusion structure is the same as the black matrix film layer, the color resist film layer or the photoresist spacer film layer. Made of materials.
  • the liquid crystal display panel further includes an upper polarizer and a lower polarizer whose absorption axes are perpendicular to each other, the upper polarizer is disposed on a side of the second substrate facing away from the liquid crystal layer, and the lower polarizer is disposed
  • the upper polarizer and the lower polarizer are circular polarizers on a side of the first substrate facing away from the liquid crystal layer.
  • liquid crystal layer is further provided with a polymer monomer, the polymer monomer and the alignment film coacting to cause liquid crystal in the liquid crystal layer between the first electrode and the second electrode
  • the molecule has a pretilt angle.
  • another technical solution adopted by the present invention is to provide a method for manufacturing a liquid crystal display panel, comprising: providing a first substrate, a second substrate, and a liquid crystal, wherein the second substrate includes an opaque a region; a first electrode is formed on one side of the first substrate, a second electrode is formed on one side of the second substrate; a protrusion structure is formed on the first electrode or the second electrode, and The surface of the protruding structure is coated with an alignment film; the first substrate and the second substrate are paired, and the first electrode and the second electrode are located on the first substrate and the second substrate The opaque region is located in a vertical projection area of the first electrode on the second substrate, and the protrusion structure is located in a vertical projection area of the opaque region; Injecting the liquid crystal between the first substrate and the second substrate to form a liquid crystal layer between the first substrate and the second substrate, under the action of the alignment film, at the first electrode and the Liquid crystal between the second electrodes
  • the liquid crystal molecules have a pret
  • the step of forming a protrusion structure on the first electrode or the second electrode comprises: forming a protrusion structure of a regular shape on the first electrode or the second electrode such that the first electrode and the The liquid crystal layer between the second electrodes has two or more liquid crystal regions in which liquid crystal molecules are tilted in different directions.
  • the step of forming a regular shaped protrusion structure on the first electrode or the second electrode comprises: forming a protrusion structure of a cone, a frustum, a columnar body or a polygonal body on the first electrode or the second electrode And the top end of the protruding structure is brought into contact with or not in contact with the inner surface of the opposite electrode.
  • the invention has the beneficial effects that the liquid crystal display panel of the present invention is provided with a protruding structure on the first electrode or the second electrode, and the surface of the protruding structure is coated with an alignment film so that the liquid crystal display panel is located in the prior art.
  • the liquid crystal molecules between the first electrode and the second electrode have a pretilt angle, thereby realizing the alignment of the liquid crystal by the protrusion structure, and it is not necessary to increase the number of masks compared with the conventional technique of performing liquid crystal alignment through the circular hole structure, which is advantageous for cut costs.
  • the protrusion structure is disposed in the vertical projection area of the opaque area, so that the protrusion structure can be prevented from forming a dark line in the light-transmitting area, thereby facilitating the improvement of the transmittance.
  • FIG. 1 is an exploded perspective view showing a pixel structure of a liquid crystal display panel in the prior art
  • FIG. 2 is a schematic view showing optical characteristics of the pixel structure shown in FIG. 1;
  • FIG. 3a is a schematic structural view of another liquid crystal display panel in the prior art
  • FIG. 3b is an exploded perspective view showing a pixel structure in the liquid crystal display panel shown in FIG. 3a;
  • FIG. 4 is a schematic structural view of an embodiment of a liquid crystal display panel of the present invention.
  • FIG. 5 is an exploded perspective view showing a first electrode and a second electrode in an embodiment of the liquid crystal display panel of the present invention
  • FIG. 6 is a schematic view showing the initial alignment of liquid crystal molecules in a liquid crystal layer in an embodiment of the liquid crystal display panel of the present invention.
  • FIG. 7 is a schematic view showing optical characteristics of a pixel structure in an embodiment of a liquid crystal display panel of the present invention.
  • FIG. 8 is a schematic structural view of another embodiment of a liquid crystal display panel of the present invention.
  • FIG. 9 is a schematic view showing an auxiliary alignment process for forming a pretilt angle of liquid crystal molecules after mixing a polymer monomer in a liquid crystal layer in still another embodiment of the liquid crystal display panel of the present invention, wherein only a part of the structure of the liquid crystal display panel is shown in the figure. ;
  • FIG. 10 is a flow chart showing an embodiment of a method of manufacturing a liquid crystal display panel of the present invention.
  • FIG. 11 is a flow chart showing a method of manufacturing a liquid crystal display panel according to an embodiment of the present invention, in which a liquid crystal is injected between a first substrate and a second substrate.
  • the liquid crystal display panel includes a first substrate 41 , a second substrate 43 , and a liquid crystal layer 45 between the first substrate 41 and the second substrate 43 .
  • a first electrode 42 is disposed on a side of the first substrate 41 adjacent to the liquid crystal layer 45
  • a second electrode 44 is disposed on a side of the second substrate 43 adjacent to the liquid crystal layer 45.
  • the first substrate 41 is an array substrate, and a driving unit for driving display of the liquid crystal display panel, such as a thin film transistor, a scanning line, a data line, or the like, is provided on the first substrate 41.
  • the second substrate 43 is a color filter substrate, and a device such as a color photoresist layer is provided on the second substrate 43 to realize display of various colors.
  • the first electrode 42 disposed on the first substrate 41 is a pixel electrode
  • the second electrode 44 disposed on the second substrate 43 is a common electrode, both of which are formed using a transparent electrode.
  • the number of the first electrodes 42 is plural, arranged in a matrix, a first electrode 42 and a second electrode 44 opposed thereto, and a liquid crystal layer between the first electrode 42 and the second electrode 44 opposed thereto 45 together define a pixel structure.
  • the second substrate 43 includes an opaque region 431, which is a region where the black matrix (BM) is located.
  • the opaque region 431 of the second substrate 43 is located in the vertical projection area of the first electrode 42 on the second substrate 43, and the partial driving component such as the scanning line 51 is located in the opaque region 431.
  • the black matrix on the color filter substrate is located at a position corresponding to the pixel electrode in the second substrate 43, and is not located at a position corresponding to the two pixel electrodes, but is disposed at the same position.
  • a driving component on a substrate 41 such as a scan line or a thin film transistor is located in a region where the pixel electrode is located, and is not disposed between the two pixel electrodes, and the scan line and the thin film transistor are located in the black matrix in the first substrate 41.
  • a driving component on a substrate 41 such as a scan line or a thin film transistor is located in a region where the pixel electrode is located, and is not disposed between the two pixel electrodes, and the scan line and the thin film transistor are located in the black matrix in the first substrate 41.
  • the second electrode 44 is provided with a protrusion structure 46, and the protrusion structure 46 is located in the vertical projection area 52 of the opaque area 431 on the second electrode 44.
  • the raised structure 46 is made of the same material as the black matrix layer.
  • the surface of the protrusion structure 46 is coated with an alignment film 48, which may be a PI (Polyimide) alignment film. Since the PI alignment film has an anchoring effect on the liquid crystal, the liquid crystal molecules can be arranged in a specific direction and pretilt angle under the action of the PI alignment film.
  • a protrusion structure 46 is disposed on the second electrode 44.
  • the liquid crystal molecules between an electrode 42 and the second electrode 44 are arranged in a tilting manner toward the protruding structure 46 at a specific tilt angle (ie, a pretilt angle) such that the liquid crystal molecules have a pretilt angle while being within one pixel structure (ie, a first electrode)
  • a specific tilt angle ie, a pretilt angle
  • the liquid crystal molecules have a pretilt angle while being within one pixel structure (ie, a first electrode)
  • pixel structure ie, a first electrode
  • the protrusion structure 46 can also utilize a color resist film layer or a photoresist spacer film layer (Photo Spacer, PS) is made of the same material.
  • the protrusion structure 46 has a regular shape such that the liquid crystal layer between the first electrode 42 and the second electrode 44 has two or more liquid crystal regions in which liquid crystal molecules are tilted in different directions.
  • the protruding structure 46 is a cone, and the surface of the protruding structure 46 is flat and has no angular structure.
  • the tip end of the protrusion structure 46 is in contact with the inner surface of the first electrode 42 as the opposite electrode, that is, in contact with the surface of the first electrode 42 adjacent to the liquid crystal layer 45. As shown in FIG.
  • liquid crystal molecules different in position relative to the protrusion structure 46 are tilted toward the protrusion structure 46 to surround the circle.
  • the protrusion structure 46 is arranged in an orderly manner, that is, in the liquid crystal layer 45 between the first electrode 42 and the second electrode 44, a plurality of liquid crystal regions having different liquid crystal molecules having different tilting directions, with the protrusion structure 46 as a reference point, such as liquid crystal molecules a first liquid crystal region 61 that is poured downward, a second liquid crystal region 62 that liquid crystal molecules are tilted to the right, a third liquid crystal region 63 in which liquid crystal molecules are tilted upward, and a fourth liquid crystal region 64 in which liquid crystal molecules are tilted to the left, and of course Between a liquid crystal region 61 and a second liquid crystal region 62, between the first liquid crystal region 61 and the fourth liquid crystal region 64, the second liquid crystal region 62 and the third liquid crystal region
  • the upward, downward, leftward, and rightward directions are relative to the view shown in FIG. 6, and may be other expressions based on other views.
  • the liquid crystal display panel can have a better wide viewing angle characteristic by forming a liquid crystal region having a plurality of different tilting directions.
  • the first electrode 42 as the counter electrode has no fishbone structure, and there are no cracks or protrusions. That is, when the protrusion structure 46 is disposed on the second electrode 44, the first electrode 42 as a counter electrode of the second electrode 44 is a monolithic strip-shaped transparent electrode, and the strip-shaped transparent electrode is not associated with the protrusion structure 46.
  • the fish bone structure, protrusions and cracks are matched, so in the initial alignment of the liquid crystal, only the protrusion structure 46 on the second electrode 44 is used for alignment, thereby making it possible to make liquid crystal molecules have different tilting directions between liquid crystal regions.
  • the obvious dividing line is the same as shown in Figure 6.
  • the second electrode 44 as the opposite electrode is not provided with protrusions, cracks, and fishbone structures.
  • the position of the opaque region 431 of the second substrate 43 corresponds to the central portion of the first electrode 42 such that the protruding structure 46 also corresponds to the central portion of the first electrode 42.
  • the opaque region 431 may also be disposed corresponding to the edge region of the first electrode 42 or other regions.
  • the initial alignment of the liquid crystal is realized by the protrusion structure 46, so that the liquid crystal molecules in one pixel structure are all arranged around the protrusion structure 46 toward the protrusion structure 46, as shown in FIG. 7, thus driving the liquid crystal display panel.
  • the display only the dark region 71 is formed at the position where the protrusion structure 46 is located, and the other region 72 is the light transmission region, compared with the two vertical lines intersecting the existing fishbone pixel electrode structure.
  • the transmittance can be greatly improved, and it is not necessary to increase the number of masks as in the prior art, and the number of masks can be reduced, which is advantageous in reducing costs.
  • the protrusion structure 46 is located in the vertical projection area 52 of the opaque area 431, that is, the protrusion structure 46 is disposed corresponding to the position where the black matrix is located, so even if a dark area is formed at the position where the protrusion structure 46 is located, The light transmissive area of the first electrode 42 is affected, so that the transmittance can be further improved.
  • the liquid crystal display panel When the liquid crystal display panel is subsequently driven to display, when a voltage is applied to the first electrode 42 and the second electrode 44, an electric field is formed in the liquid crystal layer 45, and the liquid crystal molecules having an initial tilt angle and a tilting direction under the action of the electric field are in the electric field. The action of the adjacent liquid crystal molecules is guided in order to realize the display of the liquid crystal display panel.
  • the protrusion structure 46 may also be a frustum, a columnar body or a polygonal body, for example, it may also be a square body, and the protrusion structure 46 of different shapes may function as an alignment film coated on the surface thereof.
  • the liquid crystal molecules are made to have a pretilt angle and are arranged to be tilted toward the protruding structure, so that the liquid crystal molecules in one pixel structure have a plurality of different tilting directions.
  • the protruding structure 46 may also be an irregular shape such as an irregular quadrilateral or the like.
  • the size of the protrusion structure 46 may be set as needed as long as it does not exceed the vertical projection area of the opaque area 431.
  • the tip end of the protrusion structure 46 may not be in contact with the inner surface of the first electrode 42 as the opposite end electrode, and a certain distance may be maintained therebetween.
  • the protrusion structure 46 may also be disposed on the first electrode 42 and located in the vertical projection area of the opaque region 431 on the first electrode 42.
  • the liquid crystal display panel further includes an upper polarizer 47 and a lower polarizer 49 whose absorption axes are perpendicular to each other.
  • the upper polarizer 47 is disposed on a side of the second substrate 43 facing away from the liquid crystal layer 45
  • the lower polarizer 49 is disposed on a side of the first substrate 41 facing away from the liquid crystal layer 45.
  • the upper polarizer 47 and the lower polarizer 49 are circular polarizers.
  • the liquid crystal molecules in one pixel structure are arranged around the protruding structure 46, and have various different tilting directions.
  • the circular polarizer can reduce the appearance of dark lines and improve the transmittance.
  • a liquid crystal layer 45 is further mixed with a polymer monomer (Monomer) 50 to assist the initial alignment of the liquid crystal.
  • the polymer monomer 50 is a light-sensitive monomer molecule which reacts when irradiated with light to form an auxiliary alignment polymer, so that the liquid crystal can be poured in a certain direction.
  • the liquid crystal molecules can have a pretilt angle under the action of the PI alignment film 48 on the surface of the protrusion structure 46, so that the liquid crystal can be quickly tilted along the initial alignment when the liquid crystal display panel is subsequently driven. Ordered to achieve display.
  • the further the liquid crystal is away from the protruding structure 46 the smaller the influence of the PI alignment film 48 on the surface of the protruding structure 46, so that the less pretilt angle required is formed, resulting in the separation of the protruding structure 46 when the liquid crystal display panel is subsequently driven.
  • by mixing the polymer monomer 50 in the liquid crystal layer most of the liquid crystal molecules can form a desired pretilt angle, whereby the liquid crystal response time farther from the protrusion structure 46 can be accelerated, so that The LCD responds faster.
  • FIG. 9 is a schematic diagram of an auxiliary alignment process for forming the liquid crystal molecules 451 into a pretilt angle after the polymer monomer 50 is mixed in the liquid crystal layer 45, wherein only the portion of the liquid crystal display panel is shown in the drawing. structure.
  • FIG. 9 is a schematic diagram of an auxiliary alignment process for forming the liquid crystal molecules 451 into a pretilt angle after the polymer monomer 50 is mixed in the liquid crystal layer 45, wherein only the portion of the liquid crystal display panel is shown in the drawing. structure.
  • the side of the first electrode 42 adjacent to the liquid crystal layer 45 is further coated with an alignment film 421
  • the side of the second electrode 44 adjacent to the liquid crystal layer 45 is further coated with an alignment film 441 .
  • the polymer monomer 50 is mixed into the liquid crystal.
  • a voltage is applied to the first electrode 42 and the second electrode 44 such that the liquid crystal molecules 451 between the first electrode 42 and the second electrode 44 have a pretilt angle. Under the action of the electric field, the liquid crystal molecules away from the protrusion structure 46 can be controlled to form a desired pretilt angle.
  • step S803 the liquid crystal layer 45 is irradiated with UV ultraviolet light to fix the liquid crystal molecules 451 in an aligned state having a pretilt angle and falling in a predetermined direction.
  • the polymer monomer 50 reacts under the action of UV ultraviolet light to form a polymer, and the liquid crystal molecules 45 having a pretilt angle are fixed to the alignment films 441 and 421 by the action of the polymer. surface.
  • step S804 the irradiation of the UV ultraviolet light is stopped, and the application of the voltage to the first electrode 42 and the second electrode 44 is stopped.
  • the liquid crystal molecules 451 are fixed in a state having a pretilt angle and aligned in a predetermined direction, so that after the application of the voltage is stopped, the liquid crystal molecules 451 can still have a pretilt angle and are tilted in a predetermined direction, thereby realizing liquid crystal. Initial alignment.
  • an embodiment of a method for manufacturing a liquid crystal display panel of the present invention includes the following steps:
  • Step S1001 providing a first substrate, a second substrate, and a liquid crystal, wherein the second substrate includes an opaque region.
  • the first substrate is used to form an array substrate
  • the second substrate is used to form a color filter substrate.
  • the color filter substrate is usually provided with a black matrix for spacing the color resistance of different colors
  • the opaque region of the second substrate is the position corresponding to the black matrix.
  • Step S1002 forming a first electrode on one side of the first substrate and forming a second electrode on one side of the second substrate.
  • the first electrode is disposed on the first substrate as a pixel electrode
  • the second electrode is disposed on the second substrate as a common electrode, and the first electrode and the second electrode are used to implement display of the liquid crystal display panel.
  • Step S1003 forming a protrusion structure on the first electrode or the second electrode, and coating an alignment film on the surface of the protrusion structure.
  • the protrusion structure is formed on the second electrode, and the protrusion structure is made of the same material as the black matrix layer.
  • the protrusion structure may also be formed on the first electrode, and may be made of the same material as the color resist film layer or the photoresist spacer film layer.
  • Step S1004 The first substrate and the second substrate are paired, and the first electrode and the second electrode are located between the first substrate and the second substrate, and the opaque region is located perpendicular to the first electrode on the second substrate.
  • the projection structure is located within the vertical projection area of the opaque area. Bonding the first substrate and the second substrate together to form a liquid crystal cell, wherein, in the case of the box, the first electrode is adjacent to the second electrode, that is, the side of the first substrate on which the first electrode is disposed is adjacent
  • the second substrate is provided with one side of the second electrode.
  • the area for arranging the black matrix in the second substrate is located in the vertical projection area of the first electrode, and the protrusion structure is located in the vertical projection area of the black matrix on the second electrode when the protrusion structure is formed on the second electrode .
  • Step S1005 injecting liquid crystal between the first substrate and the second substrate to form a liquid crystal layer between the first substrate and the second substrate, and being located in the liquid crystal layer between the first electrode and the second electrode under the action of the alignment film
  • the liquid crystal molecules have a pretilt angle.
  • the liquid crystal molecules By coating the alignment film on the surface of the protrusion structure, the liquid crystal molecules can be arranged at a specific angle under the action of the alignment film during the initial alignment of the liquid crystal, so that the molecules have a pretilt angle.
  • the initial alignment of the liquid crystal is realized by the protrusion structure, and the liquid crystal molecules are surrounded by the protrusion structure and tilted toward the protrusion structure under the action of the protrusion structure, thereby driving the liquid crystal display
  • the panel is displayed, only the dark region is formed at the position of the protruding structure, and the light transmitting region is formed in other regions, which can be greatly improved compared with the two vertical intersecting dark lines formed by the existing fishbone pixel electrode structure.
  • the transmittance is not required to increase the number of masks as in the prior art, and the number of masks can be reduced, which is advantageous in reducing costs.
  • the protrusion structure of the present embodiment to realize the initial alignment of the liquid crystal, it is possible to have a plurality of liquid crystal regions having different liquid crystal molecules in different tilt directions in one pixel structure, thereby making the liquid crystal display panel have better wide viewing angle characteristics.
  • the protrusion structure is located in the vertical projection area of the opaque area, that is, the protrusion structure is disposed corresponding to the position where the black matrix is located, so even if a dark area is formed at the position where the protrusion structure is located, the first electrode is not affected.
  • the light transmissive area can further increase the penetration rate.
  • the step of forming a protrusion structure on the second electrode includes: forming a protrusion structure of a regular shape on the second electrode such that between the first electrode and the second electrode
  • the liquid crystal layer has two or more liquid crystal regions in which liquid crystal molecules are tilted in different directions.
  • a protrusion structure of a cone is formed on the second electrode, and the tip end of the protrusion structure is brought into contact with the inner surface of the first electrode as the opposite electrode.
  • the liquid crystal molecules between the first electrode and the second electrode can be arranged in an orderly manner around the circular protrusion structure, so the liquid crystal molecules around the protrusion structure have different tilting directions, but both are oriented
  • the protrusion structure is tilted, that is, in the liquid crystal layer between the first electrode and the second electrode, there are a plurality of liquid crystal regions in which liquid crystal molecules are tilted in different directions, thereby realizing initial alignment of the liquid crystal, and the liquid crystal display panel can be made better. Wide viewing angle characteristics.
  • the protruding structure may also be a frustum, a columnar body or a polygonal body, for example, it may also be a square body, and the protrusion structure of different shapes may have the function of the alignment film coated on the surface thereof to make the liquid crystal molecules have The pretilt angle is arranged to be tilted toward the protruding structure, so that the liquid crystal molecules in one pixel structure have a plurality of different tilting directions.
  • the protruding structure may also be an irregular shape such as an irregular quadrilateral or the like. The size of the protrusion structure can be set as needed as long as it does not exceed the vertical projection area of the opaque area.
  • the tip end of the protruding structure may not be in contact with the inner surface of the first electrode as the opposite electrode, and a certain distance may be maintained therebetween.
  • the protrusion structure may also be disposed on the first electrode and located in a vertical projection area of the opaque region on the first electrode.
  • the protrusion structure when the protrusion structure is formed on the second electrode, fish bone-like structures, protrusions, and cracks are not formed on the first electrode in the process of forming the first electrode, and the first electrode serves as a second electrode
  • the opposite electrode is a monolithic strip-shaped transparent electrode, and no fishbone structure, cracks and protrusions are provided on the transparent electrode.
  • the method further includes the steps of: forming a lower polarizer on a side of the first substrate facing away from the liquid crystal layer, and backing the second substrate An upper polarizer is formed on one side of the liquid crystal layer, wherein the upper polarizer and the lower polarizer are both circular polarizers.
  • the liquid crystal molecules are arranged in an order around the protrusion structure, the liquid crystal molecules have a plurality of different tilting directions, so that the round polarizer can reduce the appearance of dark lines and improve the transmittance.
  • the step of injecting the liquid crystal between the first substrate and the second substrate further includes:
  • Step S1101 Injecting a polymer monomer between the first substrate and the second substrate to mix the polymer monomer in the liquid crystal between the first substrate and the second substrate.
  • the polymer monomer may be mixed into the liquid crystal, and then the liquid crystal mixed with the polymer monomer is injected between the first substrate and the second substrate.
  • Step S1102 applying a voltage to the first electrode and the second electrode such that the liquid crystal molecules in the liquid crystal layer have a pretilt angle. After the liquid crystal and polymer monomer implantation process is completed, a voltage is applied to the first electrode and the second electrode during the initial alignment of the subsequent liquid crystal to control the liquid crystal molecules away from the protrusion structure to form a desired pretilt angle.
  • Step S1103 The liquid crystal layer is irradiated with UV ultraviolet light so that the liquid crystal molecules are fixed in an aligned state having a pretilt angle and falling in a predetermined direction.
  • the polymer monomer reacts under the action of UV ultraviolet light to form a polymer, and under the action of the polymer, liquid crystal molecules having a pretilt angle are fixed in an aligned state which is tilted in a predetermined direction.
  • Step S1104 The irradiation of the UV ultraviolet light is stopped, and the application of the voltage to the first electrode and the second electrode is stopped. After the irradiation of the UV ultraviolet light is stopped, the liquid crystal molecules are fixed in a state having a pretilt angle and aligned in a predetermined direction, so that after the application of the voltage is stopped, the liquid crystal molecules can still have a pretilt angle and are tilted in a predetermined direction, thereby realizing initial alignment of the liquid crystal. .
  • the liquid crystal molecules far from the protruding structure can also have a desired pretilt angle and a predetermined tilting direction, so that the response speed of the liquid crystal can be improved.

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Abstract

A liquid crystal display panel and a manufacturing method therefor. The liquid crystal display panel comprises a first substrate (41), a second substrate (43) and a liquid crystal layer (45) arranged between the first substrate (41) and the second substrate (43). The side of the first substrate (41) adjacent to the liquid crystal layer (45) is provided with a first electrode (42). The side of the second substrate (43) adjacent to the liquid crystal layer (45) is provided with a second electrode (44). The second substrate (43) comprises an opaque area (431) that is located in a perpendicular projection area of the first electrode (42). The second electrode (44) or the first electrode (42) is provided with a protruding structure (46) that is located in a perpendicular projection area of the opaque area (431). The surface of the protruding structure (46) is coated with an alignment film (48) causing the liquid crystal molecules in the liquid crystal layer (45) between the first electrode (42) and the second electrode (44) to lie at a pre-tilted angle. In this manner, the transmittance is increased, the number of masks is decreased, and the cost is reduced.

Description

一种液晶显示面板及其制造方法 Liquid crystal display panel and manufacturing method thereof
【技术领域】[Technical Field]
本发明涉及液晶显示技术领域，特别是涉及一种液晶显示面板及其制造方法。The present invention relates to the field of liquid crystal display technology, and in particular, to a liquid crystal display panel and a method of fabricating the same.
【背景技术】 【Background technique】
液晶显示面板广泛应用于各种电子显示设备中，如移动电话、个人数字助理（PDA）、数码相机、计算机和笔记本电脑等几乎都是使用具有高分辨率彩色的显示屏。液晶显示屏通常包括TN（Twist Nematic）显示面板、VA（Vertical Alignment）显示显示面板、MVA（Multi-domain Vertical Alignment）显示面板以及IPS（In-plane switching）显示面板等，而VA显示面板以其高开口率、高分辨率、广视角等优点而成为大尺寸液晶显示器所普遍采用。Liquid crystal display panels are widely used in various electronic display devices, such as mobile phones, personal digital assistants (PDAs), digital cameras, computers, and notebook computers, which almost all use high-resolution color displays. LCD screen usually includes TN (Twist Nematic) display panel, VA (Vertical Alignment) display panel, MVA (Multi-domain Vertical Alignment) display panel and IPS (In-plane) Switching) display panels, etc., and VA display panels are widely used in large-size liquid crystal displays due to their high aperture ratio, high resolution, wide viewing angle, and the like.
然而，传统的VA显示面板在小尺寸液晶显示器中并没有被广泛使用。如图1所示，在传统的VA显示面板的像素结构中，Array（阵列基板）侧的像素电极101通常设计为鱼骨状，并分割为多个区域改善视角特性，CF（彩色滤光基板）侧的公共电极102为一整块的条状透明电极。在液晶的初始配向中，利用鱼骨状的像素电极101对液晶进行配向，以使得液晶具有多个不同方向的预倾角，从而获得改善视角特性。然而，采用鱼骨状的像素电极101时，在驱动显示面板显示时，会导致在像素电极101的中间区域出现两条垂直相交的暗线201、202，如图2所示。当显示面板尺寸越小，上述暗线201、202对穿透率的影响越显著，因此，该种像素结构的VA显示面板并不适用于高解析度、小尺寸的便携式显示设备，容易造成穿透率下降。However, conventional VA display panels are not widely used in small-sized liquid crystal displays. As shown in FIG. 1, in the pixel structure of a conventional VA display panel, the pixel electrode 101 on the Array (array substrate) side is generally designed in a fishbone shape, and is divided into a plurality of regions to improve viewing angle characteristics, and CF (color filter substrate) The common electrode 102 on the side is a monolithic strip-shaped transparent electrode. In the initial alignment of the liquid crystal, the liquid crystal is aligned by the fishbone-shaped pixel electrode 101 so that the liquid crystal has a plurality of pretilt angles in different directions, thereby obtaining improved viewing angle characteristics. However, when the fishbone-shaped pixel electrode 101 is used, when the display panel is driven, two vertical intersecting dark lines 201, 202 appear in the middle portion of the pixel electrode 101, as shown in FIG. When the size of the display panel is smaller, the influence of the dark lines 201 and 202 on the transmittance is more significant. Therefore, the VA display panel of the pixel structure is not suitable for a high-resolution, small-sized portable display device, which is easy to cause penetration. The rate drops.
为解决上述技术问题，现有技术通常在小尺寸的VA显示面板中采用如图3a和图3b所示的像素结构。在该种VA显示面板中，如图3a所述，显示面板包括Array基板31、CF基板32以及Array基板31和CF基板32的液晶层33。Array基板31邻近液晶层33的一侧设置有像素电极34，CF基板32邻近液晶层33的一侧设置有公共电极35。如图3b所示，像素电极34没有鱼骨状结构，为了对液晶进行配向，在CF基板32的公共电极35上设置一圆孔结构351，以利用该圆孔结构351产生楔状电场，从而使得液晶具有多个不同方向的预倾角。在该种像素结构中，Array侧的像素电极34并没有鱼骨状结构，仅是在圆孔结构351的位置处会产生暗线，与传统的鱼骨状电极相比，能够避免鱼骨状电极引引起的穿透率下降。然而，由于CF侧增加了圆孔结构351，因此在制造过程中需要增加一道光罩来除去圆孔结构351处的电极以得到圆孔结构351，不利于成本降低。In order to solve the above technical problems, the prior art generally employs a pixel structure as shown in Figs. 3a and 3b in a small-sized VA display panel. In the VA display panel, as shown in FIG. 3a, the display panel includes an Array substrate 31, a CF substrate 32, and a liquid crystal layer 33 of the Array substrate 31 and the CF substrate 32. A pixel electrode 34 is disposed on a side of the Array substrate 31 adjacent to the liquid crystal layer 33, and a common electrode 35 is disposed on a side of the CF substrate 32 adjacent to the liquid crystal layer 33. As shown in FIG. 3b, the pixel electrode 34 has no fishbone structure. In order to align the liquid crystal, a circular hole structure 351 is disposed on the common electrode 35 of the CF substrate 32 to generate a wedge-shaped electric field by using the circular hole structure 351, thereby The liquid crystal has a plurality of pretilt angles in different directions. In this kind of pixel structure, the pixel electrode 34 on the Array side has no fishbone structure, and only a dark line is generated at the position of the circular hole structure 351, which can avoid the fishbone electrode compared with the conventional fishbone electrode. The rate of penetration caused by the introduction is reduced. However, since the CF side has a circular hole structure 351, it is necessary to add a photomask to remove the electrode at the circular hole structure 351 during the manufacturing process to obtain the circular hole structure 351, which is disadvantageous in cost reduction.
【发明内容】 [Summary of the Invention]
本发明主要解决的技术问题是提供一种液晶显示面板及其制造方法，能够提高穿透率，减少光罩数，降低成本。The technical problem to be solved by the present invention is to provide a liquid crystal display panel and a method of manufacturing the same, which can improve the transmittance, reduce the number of masks, and reduce the cost.
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，包括第一基板、第二基板以及位于所述第一基板和所述第二基板之间的液晶层；所述第一基板邻近所述液晶层的一侧设置有第一电极，所述第二基板邻近所述液晶层的一侧设置有第二电极；所述液晶层中还设置有聚合物单体；所述第二基板包括不透光区域，所述不透光区域位于所述第一电极的垂直投影区域内，所述第二电极或所述第一电极上设置有突起结构，所述突起结构位于所不透光区域的垂直投影区域内，所述突起结构的表面涂布有配向膜，所述配向膜和所述聚合物单体共同作用以使得位于所述第一电极和所述第二电极之间的液晶层中的液晶分子具有预倾角；所述突起结构为规则形状，以使得位于所述第一电极和所述第二电极之间的液晶层具有两个以上的液晶分子倾倒方向不同的液晶区域。In order to solve the above technical problem, a technical solution adopted by the present invention is to provide a liquid crystal display panel including a first substrate, a second substrate, and a liquid crystal layer between the first substrate and the second substrate; a first electrode is disposed on a side of the first substrate adjacent to the liquid crystal layer, a second electrode is disposed on a side of the second substrate adjacent to the liquid crystal layer, and a polymer monomer is further disposed in the liquid crystal layer; The second substrate includes an opaque region, the opaque region is located in a vertical projection area of the first electrode, and the second electrode or the first electrode is provided with a protrusion structure, and the protrusion structure Located in a vertical projection area of the opaque region, the surface of the protruding structure is coated with an alignment film, the alignment film and the polymer monomer coacting to be located at the first electrode and the second The liquid crystal molecules in the liquid crystal layer between the electrodes have a pretilt angle; the protrusion structure is a regular shape such that the liquid crystal layer between the first electrode and the second electrode has more than two liquid crystal molecules Different reverse directions of the liquid crystal region.
其中，所述突起结构为圆锥、锥台、柱状体或多边体，并且所述突起结构的顶端与对端电极内表面接触或不接触。Wherein, the protruding structure is a cone, a truncated cone, a columnar body or a polygonal body, and the top end of the protruding structure is in contact with or not in contact with the inner surface of the opposite electrode.
其中，所述对端电极没有鱼骨状结构、突起和裂缝。Wherein, the opposite electrode has no fishbone structure, protrusion and crack.
其中，所述第二基板为彩色滤光基板，所述突起结构设置在所述第二电极上，所述突起结构为利用与黑色矩阵膜层、色阻膜层或光阻间隙物膜层相同的材料制成。The second substrate is a color filter substrate, and the protrusion structure is disposed on the second electrode, and the protrusion structure is the same as the black matrix film layer, the color resist film layer or the photoresist spacer film layer. Made of materials.
其中，所述液晶显示面板还包括吸收轴相互垂直的上偏光片和下偏光片，所述上偏光片设置在所述第二基板背向所述液晶层的一侧，所述下偏光片设置在所述第一基板背向所述液晶层的一侧，所述上偏光片和所述下偏光片为圆偏光片。Wherein, the liquid crystal display panel further includes an upper polarizer and a lower polarizer whose absorption axes are perpendicular to each other, the upper polarizer is disposed on a side of the second substrate facing away from the liquid crystal layer, and the lower polarizer is disposed The upper polarizer and the lower polarizer are circular polarizers on a side of the first substrate facing away from the liquid crystal layer.
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，包括第一基板、第二基板以及位于所述第一基板和所述第二基板之间的液晶层；所述第一基板邻近所述液晶层的一侧设置有第一电极，所述第二基板邻近所述液晶层的一侧设置有第二电极；所述第二基板包括不透光区域，所述不透光区域位于所述第一电极的垂直投影区域内，所述第二电极或所述第一电极上设置有突起结构，所述突起结构位于所不透光区域的垂直投影区域内，所述突起结构的表面涂布有配向膜，以使得位于所述第一电极和所述第二电极之间的液晶层中的液晶分子具有预倾角。In order to solve the above technical problem, another technical solution adopted by the present invention is to provide a liquid crystal display panel including a first substrate, a second substrate, and a liquid crystal layer between the first substrate and the second substrate; a first electrode is disposed on a side of the first substrate adjacent to the liquid crystal layer, a second electrode is disposed on a side of the second substrate adjacent to the liquid crystal layer, and the second substrate includes an opaque region. The opaque region is located in a vertical projection area of the first electrode, and the second electrode or the first electrode is provided with a protrusion structure, and the protrusion structure is located in a vertical projection area of the opaque region, The surface of the protrusion structure is coated with an alignment film such that liquid crystal molecules in the liquid crystal layer between the first electrode and the second electrode have a pretilt angle.
其中，所述突起结构为规则形状，以使得位于所述第一电极和所述第二电极之间的液晶层具有两个以上的液晶分子倾倒方向不同的液晶区域。Wherein, the protrusion structure has a regular shape such that a liquid crystal layer located between the first electrode and the second electrode has two or more liquid crystal regions in which liquid crystal molecules are tilted in different directions.
其中，所述突起结构为圆锥、锥台、柱状体或多边体，并且所述突起结构的顶端与对端电极内表面接触或不接触。Wherein, the protruding structure is a cone, a truncated cone, a columnar body or a polygonal body, and the top end of the protruding structure is in contact with or not in contact with the inner surface of the opposite electrode.
其中，所述对端电极没有鱼骨状结构、突起和裂缝。Wherein, the opposite electrode has no fishbone structure, protrusion and crack.
其中，所述第二基板为彩色滤光基板，所述突起结构设置在所述第二电极上，所述突起结构为利用与黑色矩阵膜层、色阻膜层或光阻间隙物膜层相同的材料制成。The second substrate is a color filter substrate, and the protrusion structure is disposed on the second electrode, and the protrusion structure is the same as the black matrix film layer, the color resist film layer or the photoresist spacer film layer. Made of materials.
其中，所述液晶显示面板还包括吸收轴相互垂直的上偏光片和下偏光片，所述上偏光片设置在所述第二基板背向所述液晶层的一侧，所述下偏光片设置在所述第一基板背向所述液晶层的一侧，所述上偏光片和所述下偏光片为圆偏光片。Wherein, the liquid crystal display panel further includes an upper polarizer and a lower polarizer whose absorption axes are perpendicular to each other, the upper polarizer is disposed on a side of the second substrate facing away from the liquid crystal layer, and the lower polarizer is disposed The upper polarizer and the lower polarizer are circular polarizers on a side of the first substrate facing away from the liquid crystal layer.
其中，所述液晶层中还设置有聚合物单体，所述聚合物单体和所述配向膜共同作用以使得位于所述第一电极和所述第二电极之间的液晶层中的液晶分子具有预倾角。Wherein the liquid crystal layer is further provided with a polymer monomer, the polymer monomer and the alignment film coacting to cause liquid crystal in the liquid crystal layer between the first electrode and the second electrode The molecule has a pretilt angle.
为解决上述技术问题，本发明采用的又一个技术方案是：提供一种液晶显示面板的制造方法，包括：提供第一基板、第二基板以及液晶，其中，所述第二基板包括不透光区域；在所述第一基板的一侧形成第一电极，在所述第二基板的一侧形成第二电极；在所述第一电极或所述第二电极上形成突起结构，并在所述突起结构的表面涂布配向膜；将所述第一基板和所述第二基板对盒，且所述第一电极与所述第二电极位于所述第一基板和所述第二基板之间，使所述不透光区域位于所述第一电极在所述第二基板上的垂直投影区域内，并使所述突起结构位于所述不透光区域的垂直投影区域内；在所述第一基板和所述第二基板之间注入所述液晶以在所述第一基板和所述第二基板之间形成液晶层，在所述配向膜的作用下位于所述第一电极和所述第二电极之间的液晶层中的液晶分子具有预倾角。In order to solve the above technical problem, another technical solution adopted by the present invention is to provide a method for manufacturing a liquid crystal display panel, comprising: providing a first substrate, a second substrate, and a liquid crystal, wherein the second substrate includes an opaque a region; a first electrode is formed on one side of the first substrate, a second electrode is formed on one side of the second substrate; a protrusion structure is formed on the first electrode or the second electrode, and The surface of the protruding structure is coated with an alignment film; the first substrate and the second substrate are paired, and the first electrode and the second electrode are located on the first substrate and the second substrate The opaque region is located in a vertical projection area of the first electrode on the second substrate, and the protrusion structure is located in a vertical projection area of the opaque region; Injecting the liquid crystal between the first substrate and the second substrate to form a liquid crystal layer between the first substrate and the second substrate, under the action of the alignment film, at the first electrode and the Liquid crystal between the second electrodes The liquid crystal molecules have a pretilt angle.
其中，所述在所述第一电极或第二电极上形成突起结构的步骤包括：在所述第一电极或第二电极上形成规则形状的突起结构，以使得位于所述第一电极和所述第二电极之间的液晶层具有两个以上的液晶分子倾倒方向不同的液晶区域。Wherein the step of forming a protrusion structure on the first electrode or the second electrode comprises: forming a protrusion structure of a regular shape on the first electrode or the second electrode such that the first electrode and the The liquid crystal layer between the second electrodes has two or more liquid crystal regions in which liquid crystal molecules are tilted in different directions.
其中，所述在所述第一电极或第二电极上形成规则形状的突起结构的步骤包括：在所述第一电极或第二电极上形成圆锥、锥台、柱状体或多边体的突起结构，并且使所述突起结构的顶端与对端电极内表面接触或不接触。Wherein the step of forming a regular shaped protrusion structure on the first electrode or the second electrode comprises: forming a protrusion structure of a cone, a frustum, a columnar body or a polygonal body on the first electrode or the second electrode And the top end of the protruding structure is brought into contact with or not in contact with the inner surface of the opposite electrode.
本发明的有益效果是：区别于现有技术的情况，本发明的液晶显示面板，在第一电极或第二电极上设置有突起结构，该突起结构的表面涂布有配向膜，从而使得位于第一电极和第二电极之间的液晶分子具有预倾角，由此通过突起结构实现液晶的配向，与现有通过圆孔结构进行液晶配向的技术相比，不需要增加光罩数，有利于降低成本。此外，突起结构设置在不透光区域的垂直投影区域内，从而可以避免突起结构在透光区域形成暗线，因此有利于提高穿透率。The invention has the beneficial effects that the liquid crystal display panel of the present invention is provided with a protruding structure on the first electrode or the second electrode, and the surface of the protruding structure is coated with an alignment film so that the liquid crystal display panel is located in the prior art. The liquid crystal molecules between the first electrode and the second electrode have a pretilt angle, thereby realizing the alignment of the liquid crystal by the protrusion structure, and it is not necessary to increase the number of masks compared with the conventional technique of performing liquid crystal alignment through the circular hole structure, which is advantageous for cut costs. In addition, the protrusion structure is disposed in the vertical projection area of the opaque area, so that the protrusion structure can be prevented from forming a dark line in the light-transmitting area, thereby facilitating the improvement of the transmittance.
【附图说明】 [Description of the Drawings]
图1是现有技术中一种液晶显示面板的像素结构的分解示意图；1 is an exploded perspective view showing a pixel structure of a liquid crystal display panel in the prior art;
图2是图1所示的像素结构在显示时的光学特性示意图；2 is a schematic view showing optical characteristics of the pixel structure shown in FIG. 1;
图3a是现有技术中另一种液晶显示面板的结构示意图；3a is a schematic structural view of another liquid crystal display panel in the prior art;
图3b是图3a所示的液晶显示面板中，一个像素结构的分解示意图；FIG. 3b is an exploded perspective view showing a pixel structure in the liquid crystal display panel shown in FIG. 3a;
图4是本发明液晶显示面板一实施方式的结构示意图；4 is a schematic structural view of an embodiment of a liquid crystal display panel of the present invention;
图5是本发明液晶显示面板的一实施方式中，第一电极和第二电极的分解示意图；5 is an exploded perspective view showing a first electrode and a second electrode in an embodiment of the liquid crystal display panel of the present invention;
图6是本发明液晶显示面板的一实施方式中，液晶层中的液晶分子的初始配向示意图；6 is a schematic view showing the initial alignment of liquid crystal molecules in a liquid crystal layer in an embodiment of the liquid crystal display panel of the present invention;
图7是本发明液晶显示面板的一实施方式中，一个像素结构的光学特性示意图；7 is a schematic view showing optical characteristics of a pixel structure in an embodiment of a liquid crystal display panel of the present invention;
图8是本发明液晶显示面板另一实施方式的结构示意图；8 is a schematic structural view of another embodiment of a liquid crystal display panel of the present invention;
图9是本发明液晶显示面板的又一实施方式中，在液晶层中混入聚合物单体后使液晶分子形成预倾角的辅助配向过程的示意图，其中图中仅示出液晶显示面板的部分结构；9 is a schematic view showing an auxiliary alignment process for forming a pretilt angle of liquid crystal molecules after mixing a polymer monomer in a liquid crystal layer in still another embodiment of the liquid crystal display panel of the present invention, wherein only a part of the structure of the liquid crystal display panel is shown in the figure. ;
图10是本发明液晶显示面板的制造方法一实施方式的流程图；10 is a flow chart showing an embodiment of a method of manufacturing a liquid crystal display panel of the present invention;
图11是本发明液晶显示面板的制造方法一实施方式中，在第一基板和第二基板之间注入液晶之后的流程图。11 is a flow chart showing a method of manufacturing a liquid crystal display panel according to an embodiment of the present invention, in which a liquid crystal is injected between a first substrate and a second substrate.
【具体实施方式】 【detailed description】
下面将结合附图和实施方式对本发明进行详细说明。The invention will now be described in detail in conjunction with the drawings and embodiments.
参阅图4，本发明液晶显示面板的一实施方式中，液晶显示面板包括第一基板41、第二基板43以及位于第一基板41和第二基板43之间的液晶层45。第一基板41邻近液晶层45的一侧设置有第一电极42，第二基板43邻近液晶层45的一侧设置有第二电极44，通过对第一电极42和第二电极44施加电压可驱动液晶显示面板显示。Referring to FIG. 4 , in an embodiment of the liquid crystal display panel of the present invention, the liquid crystal display panel includes a first substrate 41 , a second substrate 43 , and a liquid crystal layer 45 between the first substrate 41 and the second substrate 43 . A first electrode 42 is disposed on a side of the first substrate 41 adjacent to the liquid crystal layer 45, and a second electrode 44 is disposed on a side of the second substrate 43 adjacent to the liquid crystal layer 45. By applying a voltage to the first electrode 42 and the second electrode 44, Drive the LCD panel display.
本实施方式中，第一基板41为阵列基板，在第一基板41上设置有用于驱动液晶显示面板显示的驱动组件，例如薄膜晶体管、扫描线、数据线等器件。第二基板43为彩色滤光基板，在第二基板43上设置有彩色光阻层等器件，以实现各种色彩的显示。设置在第一基板41上的第一电极42为像素电极，设置在第二基板43上的第二电极44为公共电极，都是使用透明电极形成。其中，第一电极42的数量有多个，呈矩阵排列，一个第一电极42和与其相对的第二电极44、以及位于一个第一电极42和与其相对的第二电极44之间的液晶层45共同定义一个像素结构。In the present embodiment, the first substrate 41 is an array substrate, and a driving unit for driving display of the liquid crystal display panel, such as a thin film transistor, a scanning line, a data line, or the like, is provided on the first substrate 41. The second substrate 43 is a color filter substrate, and a device such as a color photoresist layer is provided on the second substrate 43 to realize display of various colors. The first electrode 42 disposed on the first substrate 41 is a pixel electrode, and the second electrode 44 disposed on the second substrate 43 is a common electrode, both of which are formed using a transparent electrode. Wherein, the number of the first electrodes 42 is plural, arranged in a matrix, a first electrode 42 and a second electrode 44 opposed thereto, and a liquid crystal layer between the first electrode 42 and the second electrode 44 opposed thereto 45 together define a pixel structure.
其中，第二基板43包括不透光区域431，该不透光区域为黑矩阵（BM）所在的区域。如图5所示，第二基板43的不透光区域431位于第一电极42在第二基板43上的垂直投影区域内，而部分驱动组件如扫描线51则位于不透光区域431在第一基板41中的垂直投影区域内。即在本实施方式中，彩色滤光基板上的黑矩阵是位于第二基板43中与像素电极相对应的位置，而并非是位于与两个像素电极之间相对应的位置，而设置在第一基板41上的驱动组件如扫描线、薄膜晶体管则是位于像素电极所在的区域，而并非是设置在两个像素电极之间，且扫描线和薄膜晶体管是位于黑矩阵在第一基板41中的垂直投影区域内。The second substrate 43 includes an opaque region 431, which is a region where the black matrix (BM) is located. As shown in FIG. 5, the opaque region 431 of the second substrate 43 is located in the vertical projection area of the first electrode 42 on the second substrate 43, and the partial driving component such as the scanning line 51 is located in the opaque region 431. In a vertical projection area in a substrate 41. That is, in the present embodiment, the black matrix on the color filter substrate is located at a position corresponding to the pixel electrode in the second substrate 43, and is not located at a position corresponding to the two pixel electrodes, but is disposed at the same position. A driving component on a substrate 41 such as a scan line or a thin film transistor is located in a region where the pixel electrode is located, and is not disposed between the two pixel electrodes, and the scan line and the thin film transistor are located in the black matrix in the first substrate 41. Within the vertical projection area.
其中，第二电极44上设置有突起结构46，突起结构46位于不透光区域431在第二电极44上的垂直投影区域52内。突起结构46为利用与黑矩阵层相同的材料制成。突起结构46的表面涂布有配向膜48，该配向膜48可以为PI（Polyimide，聚亚酰胺）配向膜。由于PI配向膜对液晶有锚定作用，因此在PI配向膜的作用下可以使得液晶分子依照特定的方向和预倾角倾倒排列。本实施例中，如图6所示，在第二电极44上设置一个突起结构46，在液晶的初始配向过程中，在突起结构46表面所涂布PI配向膜48的作用下，可使得第一电极42和第二电极44之间的液晶分子朝向突起结构46按照特定倾斜角度（即预倾角）倾倒排列，从而使得液晶分子具有预倾角，同时使得在一个像素结构内（即一个第一电极和第二电极之间）具有多种液晶分子倾倒方向不相同的液晶区域，由此实现液晶的初始配向。The second electrode 44 is provided with a protrusion structure 46, and the protrusion structure 46 is located in the vertical projection area 52 of the opaque area 431 on the second electrode 44. The raised structure 46 is made of the same material as the black matrix layer. The surface of the protrusion structure 46 is coated with an alignment film 48, which may be a PI (Polyimide) alignment film. Since the PI alignment film has an anchoring effect on the liquid crystal, the liquid crystal molecules can be arranged in a specific direction and pretilt angle under the action of the PI alignment film. In this embodiment, as shown in FIG. 6, a protrusion structure 46 is disposed on the second electrode 44. During the initial alignment of the liquid crystal, under the action of the PI alignment film 48 coated on the surface of the protrusion structure 46, The liquid crystal molecules between an electrode 42 and the second electrode 44 are arranged in a tilting manner toward the protruding structure 46 at a specific tilt angle (ie, a pretilt angle) such that the liquid crystal molecules have a pretilt angle while being within one pixel structure (ie, a first electrode) Between the second electrode and the liquid crystal region having a plurality of liquid crystal molecules having different tilting directions, thereby achieving initial alignment of the liquid crystal.
当然，突起结构46也可以利用与色阻膜层或光阻间隙物膜层（Photo Spacer，PS）相同的材料制成。Of course, the protrusion structure 46 can also utilize a color resist film layer or a photoresist spacer film layer (Photo Spacer, PS) is made of the same material.
其中，突起结构46为规则形状，以使得在第一电极42和第二电极44之间的液晶层具有两个以上的液晶分子倾倒方向不同的液晶区域。本实施方式中，如图4所示，突起结构46为圆锥体，且突起结构46的表面平整，没有棱角结构。突起结构46的顶端与作为对端电极的第一电极42的内表面接触，即与第一电极42邻近液晶层45的表面相接触。如图6所示，在初始配向过程中，在突起结构46表面的PI配向膜48的作用下，使得在相对突起结构46的位置不同的液晶分子均朝向突起结构46倾倒，以围绕着圆形的突起结构46有序排列，即在第一电极42和第二电极44之间的液晶层45中，具有多个液晶分子倾倒方向不同的液晶区域，以突起结构46为参考点，例如液晶分子向下倾倒的第一液晶区域61、液晶分子向右倾倒的第二液晶区域62、液晶分子向上倾倒的第三液晶区域63以及液晶分子向左倾倒的第四液晶区域64，当然还有在第一液晶区域61和第二液晶区域62之间、第一液晶区域61和第四液晶区域64之间、第二液晶区域62和第三液晶区域63、第三液晶区域63和第四液晶区域64之间的液晶分子为其他倾倒方向的液晶区域，并且各个液晶区域之间并无明显的分界线。其中，所述的向上、向下、向左以及向右均是相对于图6所示的视图而言，在以别的视图基础上，也可以是别的表述方式。通过形成具有多种不同倾倒方向的液晶区域可使得液晶显示面板具有较好的广视角特性。Here, the protrusion structure 46 has a regular shape such that the liquid crystal layer between the first electrode 42 and the second electrode 44 has two or more liquid crystal regions in which liquid crystal molecules are tilted in different directions. In the present embodiment, as shown in FIG. 4, the protruding structure 46 is a cone, and the surface of the protruding structure 46 is flat and has no angular structure. The tip end of the protrusion structure 46 is in contact with the inner surface of the first electrode 42 as the opposite electrode, that is, in contact with the surface of the first electrode 42 adjacent to the liquid crystal layer 45. As shown in FIG. 6, in the initial alignment process, under the action of the PI alignment film 48 on the surface of the protrusion structure 46, liquid crystal molecules different in position relative to the protrusion structure 46 are tilted toward the protrusion structure 46 to surround the circle. The protrusion structure 46 is arranged in an orderly manner, that is, in the liquid crystal layer 45 between the first electrode 42 and the second electrode 44, a plurality of liquid crystal regions having different liquid crystal molecules having different tilting directions, with the protrusion structure 46 as a reference point, such as liquid crystal molecules a first liquid crystal region 61 that is poured downward, a second liquid crystal region 62 that liquid crystal molecules are tilted to the right, a third liquid crystal region 63 in which liquid crystal molecules are tilted upward, and a fourth liquid crystal region 64 in which liquid crystal molecules are tilted to the left, and of course Between a liquid crystal region 61 and a second liquid crystal region 62, between the first liquid crystal region 61 and the fourth liquid crystal region 64, the second liquid crystal region 62 and the third liquid crystal region 63, the third liquid crystal region 63, and the fourth liquid crystal region 64 The liquid crystal molecules in between are liquid crystal regions in other tilting directions, and there is no clear boundary between the respective liquid crystal regions. Wherein, the upward, downward, leftward, and rightward directions are relative to the view shown in FIG. 6, and may be other expressions based on other views. The liquid crystal display panel can have a better wide viewing angle characteristic by forming a liquid crystal region having a plurality of different tilting directions.
其中，本实施方式中，作为对端电极的第一电极42没有鱼骨状结构，也没有裂缝和突起。即当突起结构46设置在第二电极44上时，第一电极42作为第二电极44的对端电极为一整块的条状透明电极，在该条状透明电极上没有与突起结构46相配合的鱼骨状结构、突起和裂缝，因此在液晶的初始配向过程中，仅是利用第二电极44上的突起结构46进行配向，由此可使得液晶分子倾倒方向不同的液晶区域之间没有明显的分界线，如图6所示一样。对于其他的实施方式，当突起结构46设置在第一电极42上时，作为对端电极的第二电极44上也不设置有突起、裂缝和鱼骨状结构。However, in the present embodiment, the first electrode 42 as the counter electrode has no fishbone structure, and there are no cracks or protrusions. That is, when the protrusion structure 46 is disposed on the second electrode 44, the first electrode 42 as a counter electrode of the second electrode 44 is a monolithic strip-shaped transparent electrode, and the strip-shaped transparent electrode is not associated with the protrusion structure 46. The fish bone structure, protrusions and cracks are matched, so in the initial alignment of the liquid crystal, only the protrusion structure 46 on the second electrode 44 is used for alignment, thereby making it possible to make liquid crystal molecules have different tilting directions between liquid crystal regions. The obvious dividing line is the same as shown in Figure 6. For other embodiments, when the protruding structure 46 is disposed on the first electrode 42, the second electrode 44 as the opposite electrode is not provided with protrusions, cracks, and fishbone structures.
其中，第二基板43的不透光区域431所在的位置与第一电极42的中部相对应，从而突起结构46也是与第一电极42的中部相对应。当然，不透光区域431也可以是与第一电极42的边缘区域或其他的区域相对应设置。The position of the opaque region 431 of the second substrate 43 corresponds to the central portion of the first electrode 42 such that the protruding structure 46 also corresponds to the central portion of the first electrode 42. Of course, the opaque region 431 may also be disposed corresponding to the edge region of the first electrode 42 or other regions.
本实施方式中，利用突起结构46实现液晶的初始配向，使得一个像素结构内的液晶分子均围绕在突起结构46周围朝向突起结构46方向倾倒排列，如图7所示，因此在驱动液晶显示面板显示时仅是在突起结构46所在的位置会形成暗区域71，而在其他区域72都为透光区域，与现有的鱼骨状像素电极结构所形成的两条垂直相交的暗线相比，能够大大提高穿透率，且不需要如现有技术一样增加光罩数，能够减少光罩数，有利于降低成本。In this embodiment, the initial alignment of the liquid crystal is realized by the protrusion structure 46, so that the liquid crystal molecules in one pixel structure are all arranged around the protrusion structure 46 toward the protrusion structure 46, as shown in FIG. 7, thus driving the liquid crystal display panel. In the display, only the dark region 71 is formed at the position where the protrusion structure 46 is located, and the other region 72 is the light transmission region, compared with the two vertical lines intersecting the existing fishbone pixel electrode structure. The transmittance can be greatly improved, and it is not necessary to increase the number of masks as in the prior art, and the number of masks can be reduced, which is advantageous in reducing costs.
此外，突起结构46位于不透光区域431的垂直投影区域52内，即突起结构46是对应于黑矩阵所在的位置而设置，因此即使在突起结构46所在的位置会形成暗区域，也不会影响第一电极42的透光区域，从而可进一步提高穿透率。In addition, the protrusion structure 46 is located in the vertical projection area 52 of the opaque area 431, that is, the protrusion structure 46 is disposed corresponding to the position where the black matrix is located, so even if a dark area is formed at the position where the protrusion structure 46 is located, The light transmissive area of the first electrode 42 is affected, so that the transmittance can be further improved.
在后续驱动液晶显示面板显示的时候，当对第一电极42和第二电极44施加电压后，在液晶层45中形成电场，在电场的作用下具有初始倾倒角和倾倒方向的液晶分子在电场的作用下引导相邻的液晶分子有序排列，以实现液晶显示面板的显示。When the liquid crystal display panel is subsequently driven to display, when a voltage is applied to the first electrode 42 and the second electrode 44, an electric field is formed in the liquid crystal layer 45, and the liquid crystal molecules having an initial tilt angle and a tilting direction under the action of the electric field are in the electric field. The action of the adjacent liquid crystal molecules is guided in order to realize the display of the liquid crystal display panel.
当然，在本发明的实施方式中，突起结构46还可以是锥台、柱状体或多边体，例如还可以是方体，不同形状的突起结构46通过其表面涂布的配向膜的作用均可以使得液晶分子具有预倾角，并朝向突起结构倾倒排列，从而使得一个像素结构内的液晶分子具有多种不同的倾倒方向。此外，突起结构46也可以是不规则形状，例如不规则的四边体等。突起结构46的尺寸可以根据需要进行设置，只要不超出不透光区域431的垂直投影区域均可。此外，突起结构46的顶端也可以不与作为对端电极的第一电极42的内表面相接触，两者之间可以保持一定的距离。当然，突起结构46也可以是设置在第一电极42上，并位于不透光区域431在第一电极42上的垂直投影区域内。Of course, in the embodiment of the present invention, the protrusion structure 46 may also be a frustum, a columnar body or a polygonal body, for example, it may also be a square body, and the protrusion structure 46 of different shapes may function as an alignment film coated on the surface thereof. The liquid crystal molecules are made to have a pretilt angle and are arranged to be tilted toward the protruding structure, so that the liquid crystal molecules in one pixel structure have a plurality of different tilting directions. Further, the protruding structure 46 may also be an irregular shape such as an irregular quadrilateral or the like. The size of the protrusion structure 46 may be set as needed as long as it does not exceed the vertical projection area of the opaque area 431. Further, the tip end of the protrusion structure 46 may not be in contact with the inner surface of the first electrode 42 as the opposite end electrode, and a certain distance may be maintained therebetween. Of course, the protrusion structure 46 may also be disposed on the first electrode 42 and located in the vertical projection area of the opaque region 431 on the first electrode 42.
在本发明的实施方式中，如图8所示，液晶显示面板还包括吸收轴相互垂直的上偏光片47和下偏光片49。上偏光片47设置在第二基板43背向液晶层45的一侧，下偏光片49设置在第一基板41背向液晶层45的一侧。其中，上偏光片47和下偏光片49为圆偏光片。本发明的液晶初始配向中，一个像素结构内的液晶分子围绕突起结构46倾倒排列，具有多种不同的倾倒方向，配合圆偏光片可以减少暗纹的出现，有利于提高穿透率。In the embodiment of the present invention, as shown in FIG. 8, the liquid crystal display panel further includes an upper polarizer 47 and a lower polarizer 49 whose absorption axes are perpendicular to each other. The upper polarizer 47 is disposed on a side of the second substrate 43 facing away from the liquid crystal layer 45, and the lower polarizer 49 is disposed on a side of the first substrate 41 facing away from the liquid crystal layer 45. The upper polarizer 47 and the lower polarizer 49 are circular polarizers. In the initial alignment of the liquid crystal of the present invention, the liquid crystal molecules in one pixel structure are arranged around the protruding structure 46, and have various different tilting directions. The circular polarizer can reduce the appearance of dark lines and improve the transmittance.
为了提高液晶的响应时间，在本发明的实施方式中，如图9所示，液晶层45中还有混有聚合物单体（Monomer）50，以辅助液晶的初始配向。聚合物单体50为对光线敏感的单体分子，被光线照射时会反生反应以形成辅助配向的聚合物，使得液晶能够按照一定方向倾倒。在液晶的初始配向过程中，在突起结构46表面的PI配向膜48的作用下可使得液晶分子具有预倾角，从而在后续驱动液晶显示面板显示的时候可以使得液晶快速沿着初始配向的倾倒方向有序排列，以实现显示。然而，液晶越远离突起结构46，其受突起结构46表面的PI配向膜48的影响越小，因此越不容易形成所需的预倾角，导致在后续驱动液晶显示面板的时候，远离突起结构46的液晶分子旋转至显示所需的角度时所需要的时间越多。本实施方式中，通过在液晶层中混入聚合物单体50，使得绝大部分的液晶分子都能够形成所需的预倾角，由此能够可以加快距离突起结构46较远的液晶响应时间，使得液晶响应速度更快。In order to increase the response time of the liquid crystal, in the embodiment of the present invention, as shown in FIG. 9, a liquid crystal layer 45 is further mixed with a polymer monomer (Monomer) 50 to assist the initial alignment of the liquid crystal. The polymer monomer 50 is a light-sensitive monomer molecule which reacts when irradiated with light to form an auxiliary alignment polymer, so that the liquid crystal can be poured in a certain direction. During the initial alignment of the liquid crystal, the liquid crystal molecules can have a pretilt angle under the action of the PI alignment film 48 on the surface of the protrusion structure 46, so that the liquid crystal can be quickly tilted along the initial alignment when the liquid crystal display panel is subsequently driven. Ordered to achieve display. However, the further the liquid crystal is away from the protruding structure 46, the smaller the influence of the PI alignment film 48 on the surface of the protruding structure 46, so that the less pretilt angle required is formed, resulting in the separation of the protruding structure 46 when the liquid crystal display panel is subsequently driven. The more time it takes for the liquid crystal molecules to rotate to display the desired angle. In the present embodiment, by mixing the polymer monomer 50 in the liquid crystal layer, most of the liquid crystal molecules can form a desired pretilt angle, whereby the liquid crystal response time farther from the protrusion structure 46 can be accelerated, so that The LCD responds faster.
进一步地，在液晶中混入聚合物单体50时，在液晶的初始配向过程中，还需要对液晶进行UV紫外光照射以使得液晶分子形成预倾角。具体地，如图9所示，图9为在液晶层45中混入聚合物单体50后使液晶分子451形成预倾角的辅助配向过程的示意图，其中图中仅是示出液晶显示面板的部分结构。此外，如图9所示，本实施方式中，第一电极42邻近液晶层45的一侧还涂布有配向膜421，第二电极44邻近液晶层45的一侧还涂布有配向膜441，用以实现对液晶分子451的配向。步骤S801中，将聚合物单体50混入液晶中。步骤S802，对第一电极42和第二电极44施加电压，以使得第一电极42和第二电极44之间的液晶分子451具有预倾角。在电场的作用下，可以控制远离突起结构46的液晶分子形成所需的预倾角。步骤S803，对液晶层45照射UV紫外光，以使液晶分子451固定在具有预倾角且沿预定方向倾倒的排列状态。在对液晶层照射UV紫外光时，聚合物单体50在UV紫外光的作用下反应形成聚合物，在该聚合物的作用下使得具有预倾角的液晶分子45固定在配向膜441、421的表面。步骤S804，停止照射UV紫外光，并停止对第一电极42和第二电极44施加电压。在停止照射UV紫外光后，液晶分子451被固定在具有预倾角且沿预定方向排列的状态，因此在停止施加电压后可使得液晶分子451仍然具有预倾角且沿预定方向倾倒，从而实现液晶的初始配向。Further, when the polymer monomer 50 is mixed in the liquid crystal, in the initial alignment of the liquid crystal, it is also required to subject the liquid crystal to UV ultraviolet light irradiation so that the liquid crystal molecules form a pretilt angle. Specifically, as shown in FIG. 9, FIG. 9 is a schematic diagram of an auxiliary alignment process for forming the liquid crystal molecules 451 into a pretilt angle after the polymer monomer 50 is mixed in the liquid crystal layer 45, wherein only the portion of the liquid crystal display panel is shown in the drawing. structure. In addition, as shown in FIG. 9 , in the embodiment, the side of the first electrode 42 adjacent to the liquid crystal layer 45 is further coated with an alignment film 421 , and the side of the second electrode 44 adjacent to the liquid crystal layer 45 is further coated with an alignment film 441 . To achieve alignment of the liquid crystal molecules 451. In step S801, the polymer monomer 50 is mixed into the liquid crystal. In step S802, a voltage is applied to the first electrode 42 and the second electrode 44 such that the liquid crystal molecules 451 between the first electrode 42 and the second electrode 44 have a pretilt angle. Under the action of the electric field, the liquid crystal molecules away from the protrusion structure 46 can be controlled to form a desired pretilt angle. In step S803, the liquid crystal layer 45 is irradiated with UV ultraviolet light to fix the liquid crystal molecules 451 in an aligned state having a pretilt angle and falling in a predetermined direction. When the liquid crystal layer is irradiated with UV ultraviolet light, the polymer monomer 50 reacts under the action of UV ultraviolet light to form a polymer, and the liquid crystal molecules 45 having a pretilt angle are fixed to the alignment films 441 and 421 by the action of the polymer. surface. In step S804, the irradiation of the UV ultraviolet light is stopped, and the application of the voltage to the first electrode 42 and the second electrode 44 is stopped. After the irradiation of the UV ultraviolet light is stopped, the liquid crystal molecules 451 are fixed in a state having a pretilt angle and aligned in a predetermined direction, so that after the application of the voltage is stopped, the liquid crystal molecules 451 can still have a pretilt angle and are tilted in a predetermined direction, thereby realizing liquid crystal. Initial alignment.
参阅图10，本发明液晶显示面板的制造方法一实施方式中，包括如下步骤：Referring to FIG. 10, an embodiment of a method for manufacturing a liquid crystal display panel of the present invention includes the following steps:
步骤S1001：提供第一基板、第二基板以及液晶，其中，第二基板包括不透光区域。本实施方式中，第一基板用于形成阵列基板，第二基板用于形成彩色滤光基板。在后续制程中，彩色滤光基板上通常设置有黑矩阵，用以间隔不同颜色的色阻，第二基板的不透光区域即为对应黑矩阵的位置。Step S1001: providing a first substrate, a second substrate, and a liquid crystal, wherein the second substrate includes an opaque region. In this embodiment, the first substrate is used to form an array substrate, and the second substrate is used to form a color filter substrate. In the subsequent process, the color filter substrate is usually provided with a black matrix for spacing the color resistance of different colors, and the opaque region of the second substrate is the position corresponding to the black matrix.
步骤S1002：在第一基板的一侧形成第一电极，在第二基板的一侧形成第二电极。第一电极作为像素电极设置在第一基板上，第二电极作为公共电极设置在第二基板上，第一电极和第二电极用于实现液晶显示面板的显示。Step S1002: forming a first electrode on one side of the first substrate and forming a second electrode on one side of the second substrate. The first electrode is disposed on the first substrate as a pixel electrode, and the second electrode is disposed on the second substrate as a common electrode, and the first electrode and the second electrode are used to implement display of the liquid crystal display panel.
步骤S1003：在第一电极或第二电极上形成突起结构，并在突起结构的表面涂布配向膜。本实施方式中，突起结构形成在第二电极上，且突起结构为利用与黑矩阵层相同的材料制成。当然，在其他实施方式中，突起结构也可以形成在第一电极上，并且可以利用与色阻膜层或光阻间隙物膜层相同的材料制成。Step S1003: forming a protrusion structure on the first electrode or the second electrode, and coating an alignment film on the surface of the protrusion structure. In the present embodiment, the protrusion structure is formed on the second electrode, and the protrusion structure is made of the same material as the black matrix layer. Of course, in other embodiments, the protrusion structure may also be formed on the first electrode, and may be made of the same material as the color resist film layer or the photoresist spacer film layer.
步骤S1004：将第一基板和第二基板对盒，且第一电极和第二电极位于第一基板和第二基板之间，并使不透光区域位于第一电极在第二基板上的垂直投影区域内，且使突起结构位于不透光区域的垂直投影区域内。将第一基板和第二基板贴合在一起，用以形成液晶盒，其中，在对盒时，第一电极与第二电极相邻近，即第一基板设置有第一电极的一侧邻近第二基板设置有第二电极的一侧。此外，使第二基板中用于设置黑矩阵的区域位于第一电极的垂直投影区域内，且在第二电极上形成突起结构时使突起结构位于黑矩阵在第二电极上的垂直投影区域内。Step S1004: The first substrate and the second substrate are paired, and the first electrode and the second electrode are located between the first substrate and the second substrate, and the opaque region is located perpendicular to the first electrode on the second substrate. Within the projection area, the projection structure is located within the vertical projection area of the opaque area. Bonding the first substrate and the second substrate together to form a liquid crystal cell, wherein, in the case of the box, the first electrode is adjacent to the second electrode, that is, the side of the first substrate on which the first electrode is disposed is adjacent The second substrate is provided with one side of the second electrode. Further, the area for arranging the black matrix in the second substrate is located in the vertical projection area of the first electrode, and the protrusion structure is located in the vertical projection area of the black matrix on the second electrode when the protrusion structure is formed on the second electrode .
步骤S1005：在第一基板和第二基板之间注入液晶以在第一基板和第二基板之间形成液晶层，在配向膜的作用下位于第一电极和第二电极之间的液晶层中的液晶分子具有预倾角。Step S1005: injecting liquid crystal between the first substrate and the second substrate to form a liquid crystal layer between the first substrate and the second substrate, and being located in the liquid crystal layer between the first electrode and the second electrode under the action of the alignment film The liquid crystal molecules have a pretilt angle.
通过在突起结构的表面涂布配向膜，从而在液晶的初始配向过程中，在配向膜的作用下可使得液晶分子按照特定角度排列，从而使得分子具有预倾角。By coating the alignment film on the surface of the protrusion structure, the liquid crystal molecules can be arranged at a specific angle under the action of the alignment film during the initial alignment of the liquid crystal, so that the molecules have a pretilt angle.
本实施方式中，通过在第二电极上形成突起结构，利用突起结构实现液晶的初始配向，在突起结构的作用下使得液晶分子围绕在突起结构周围且朝向突起结构倾倒排列，因此在驱动液晶显示面板显示时仅是在突起结构的位置会形成暗区域，而在其他区域都为透光区域，与现有的鱼骨状像素电极结构所形成的两条垂直相交的暗线相比，能够大大提高穿透率，且不需要如现有技术一样增加光罩数，能够减少光罩数，有利于降低成本。此外，通过利用本实施方式的突起结构实现液晶的初始配向，可使得在一个像素结构内具有多种液晶分子倾倒方向不同的液晶区域，由此可使得液晶显示面板具有较好的广视角特性。In this embodiment, by forming a protrusion structure on the second electrode, the initial alignment of the liquid crystal is realized by the protrusion structure, and the liquid crystal molecules are surrounded by the protrusion structure and tilted toward the protrusion structure under the action of the protrusion structure, thereby driving the liquid crystal display When the panel is displayed, only the dark region is formed at the position of the protruding structure, and the light transmitting region is formed in other regions, which can be greatly improved compared with the two vertical intersecting dark lines formed by the existing fishbone pixel electrode structure. The transmittance is not required to increase the number of masks as in the prior art, and the number of masks can be reduced, which is advantageous in reducing costs. In addition, by using the protrusion structure of the present embodiment to realize the initial alignment of the liquid crystal, it is possible to have a plurality of liquid crystal regions having different liquid crystal molecules in different tilt directions in one pixel structure, thereby making the liquid crystal display panel have better wide viewing angle characteristics.
此外，突起结构位于不透光区域的垂直投影区域内，即突起结构是对应于黑矩阵所在的位置而设置，因此即使在突起结构所在的位置会形成暗区域，也不会影响第一电极的透光区域，从而可进一步提高穿透率。In addition, the protrusion structure is located in the vertical projection area of the opaque area, that is, the protrusion structure is disposed corresponding to the position where the black matrix is located, so even if a dark area is formed at the position where the protrusion structure is located, the first electrode is not affected. The light transmissive area can further increase the penetration rate.
在本发明液晶显示面板的制造方法的实施方式中，在第二电极上形成突起结构的步骤包括：在第二电极上形成规则形状的突起结构，以使得在第一电极和第二电极之间的液晶层具有两个以上的液晶分子倾倒方向不同的液晶区域。In an embodiment of the method of fabricating a liquid crystal display panel of the present invention, the step of forming a protrusion structure on the second electrode includes: forming a protrusion structure of a regular shape on the second electrode such that between the first electrode and the second electrode The liquid crystal layer has two or more liquid crystal regions in which liquid crystal molecules are tilted in different directions.
具体地，本实施方式中，在第二电极上形成圆锥体的突起结构，并使突起结构的顶端与作为对端电极的第一电极的内表面相接触。通过圆锥体的突起结构，可以使得第一电极和第二电极之间的液晶分子围绕着圆形的突起结构有序排列，因此在突起结构周围的液晶分子其倾倒方向各不相同，但都朝向突起结构倾倒，即在第一电极和第二电极之间的液晶层中，具有多个液晶分子倾倒方向不同的液晶区域，由此实现液晶的初始配向，并且可使得液晶显示面板具有较好的广视角特性。Specifically, in the present embodiment, a protrusion structure of a cone is formed on the second electrode, and the tip end of the protrusion structure is brought into contact with the inner surface of the first electrode as the opposite electrode. Through the protruding structure of the cone, the liquid crystal molecules between the first electrode and the second electrode can be arranged in an orderly manner around the circular protrusion structure, so the liquid crystal molecules around the protrusion structure have different tilting directions, but both are oriented The protrusion structure is tilted, that is, in the liquid crystal layer between the first electrode and the second electrode, there are a plurality of liquid crystal regions in which liquid crystal molecules are tilted in different directions, thereby realizing initial alignment of the liquid crystal, and the liquid crystal display panel can be made better. Wide viewing angle characteristics.
当然，在其他实施方式中，突起结构还可以是锥台、柱状体或多边体，例如还可以是方体，不同形状的突起结构通过其表面涂布的配向膜的作用均可以使得液晶分子具有预倾角，并朝向突起结构倾倒排列，从而使得一个像素结构内的液晶分子具有多种不同的倾倒方向。此外，突起结构也可以是不规则形状，例如不规则的四边体等。突起结构的尺寸可以根据需要进行设置，只要不超出不透光区域的垂直投影区域均可。此外，突起结构的顶端也可以不与作为对端电极的第一电极的内表面相接触，两者之间可以保持一定的距离。当然，突起结构也可以是设置在第一电极上，并位于不透光区域在第一电极上的垂直投影区域内。Of course, in other embodiments, the protruding structure may also be a frustum, a columnar body or a polygonal body, for example, it may also be a square body, and the protrusion structure of different shapes may have the function of the alignment film coated on the surface thereof to make the liquid crystal molecules have The pretilt angle is arranged to be tilted toward the protruding structure, so that the liquid crystal molecules in one pixel structure have a plurality of different tilting directions. Further, the protruding structure may also be an irregular shape such as an irregular quadrilateral or the like. The size of the protrusion structure can be set as needed as long as it does not exceed the vertical projection area of the opaque area. Further, the tip end of the protruding structure may not be in contact with the inner surface of the first electrode as the opposite electrode, and a certain distance may be maintained therebetween. Of course, the protrusion structure may also be disposed on the first electrode and located in a vertical projection area of the opaque region on the first electrode.
在本发明的实施方式中，当突起结构形成在第二电极上时，在形成第一电极的过程中，第一电极上不形成鱼骨状结构、突起和裂缝，第一电极作为第二电极的对端电极，其为一整块的条状透明电极，在该透明电极上不设置有鱼骨状结构、裂缝和突起。In an embodiment of the present invention, when the protrusion structure is formed on the second electrode, fish bone-like structures, protrusions, and cracks are not formed on the first electrode in the process of forming the first electrode, and the first electrode serves as a second electrode The opposite electrode is a monolithic strip-shaped transparent electrode, and no fishbone structure, cracks and protrusions are provided on the transparent electrode.
此外，在本发明的实施方式中，在第一基板和第二基板之间注入液晶之后，还包括如下步骤：在第一基板背向液晶层的一侧形成下偏光片，在第二基板背向液晶层的一侧形成上偏光片，其中，上偏光片和下偏光片均为圆偏光片。本实施方式中，由于液晶分子是围绕着突起结构有序排列，液晶分子具有多种不同的倾倒方向，因此配合圆偏光片可以减少暗纹的出现，有利于提高穿透率。In addition, in the embodiment of the present invention, after the liquid crystal is injected between the first substrate and the second substrate, the method further includes the steps of: forming a lower polarizer on a side of the first substrate facing away from the liquid crystal layer, and backing the second substrate An upper polarizer is formed on one side of the liquid crystal layer, wherein the upper polarizer and the lower polarizer are both circular polarizers. In the present embodiment, since the liquid crystal molecules are arranged in an order around the protrusion structure, the liquid crystal molecules have a plurality of different tilting directions, so that the round polarizer can reduce the appearance of dark lines and improve the transmittance.
为了提高液晶的响应速度，加快液晶的响应时间，在本发明的实施方式中，参阅图11，在第一基板和第二基板之间注入液晶之后的步骤还包括：In order to increase the response speed of the liquid crystal and speed up the response time of the liquid crystal, in the embodiment of the present invention, referring to FIG. 11, the step of injecting the liquid crystal between the first substrate and the second substrate further includes:
步骤S1101：在第一基板和第二基板之间注入聚合物单体，以在第一基板和第二基板之间的液晶中混入聚合物单体。其中，在将液晶注入第一基板和第二基板前，可以将聚合物单体混入液晶中，然后将混有聚合物单体的液晶注入第一基板和第二基板之间。Step S1101: Injecting a polymer monomer between the first substrate and the second substrate to mix the polymer monomer in the liquid crystal between the first substrate and the second substrate. Wherein, before the liquid crystal is injected into the first substrate and the second substrate, the polymer monomer may be mixed into the liquid crystal, and then the liquid crystal mixed with the polymer monomer is injected between the first substrate and the second substrate.
步骤S1102：对第一电极和第二电极施加电压，以使得液晶层中的液晶分子具有预倾角。在完成液晶和聚合物单体的注入程序后，在后续液晶的初始配向过程中，对第一电极和第二电极施加电压，以控制远离突起结构的液晶分子形成所需的预倾角。Step S1102: applying a voltage to the first electrode and the second electrode such that the liquid crystal molecules in the liquid crystal layer have a pretilt angle. After the liquid crystal and polymer monomer implantation process is completed, a voltage is applied to the first electrode and the second electrode during the initial alignment of the subsequent liquid crystal to control the liquid crystal molecules away from the protrusion structure to form a desired pretilt angle.
步骤S1103：对液晶层照射UV紫外光，以使得液晶分子固定在具有预倾角且沿预定方向倾倒的排列状态。在对液晶层照射UV紫外光时，聚合物单体在UV紫外光的作用下反应形成聚合物，在该聚合物的作用下使得具有预倾角的液晶分子固定在沿预定方向倾倒的排列状态。Step S1103: The liquid crystal layer is irradiated with UV ultraviolet light so that the liquid crystal molecules are fixed in an aligned state having a pretilt angle and falling in a predetermined direction. When the liquid crystal layer is irradiated with UV ultraviolet light, the polymer monomer reacts under the action of UV ultraviolet light to form a polymer, and under the action of the polymer, liquid crystal molecules having a pretilt angle are fixed in an aligned state which is tilted in a predetermined direction.
步骤S1104：停止照射UV紫外光，并停止对第一电极和第二电极施加电压。在停止照射UV紫外光后，液晶分子被固定在具有预倾角且沿预定方向排列的状态，因此在停止施加电压后可使得液晶分子仍然具有预倾角且沿预定方向倾倒，从而实现液晶的初始配向。Step S1104: The irradiation of the UV ultraviolet light is stopped, and the application of the voltage to the first electrode and the second electrode is stopped. After the irradiation of the UV ultraviolet light is stopped, the liquid crystal molecules are fixed in a state having a pretilt angle and aligned in a predetermined direction, so that after the application of the voltage is stopped, the liquid crystal molecules can still have a pretilt angle and are tilted in a predetermined direction, thereby realizing initial alignment of the liquid crystal. .
通过上述的辅助配向过程，可以使得远离突起结构的液晶分子也具有所需的预倾角以及预定的倾倒方向，因此可以提高液晶的响应速度。Through the above-described auxiliary alignment process, the liquid crystal molecules far from the protruding structure can also have a desired pretilt angle and a predetermined tilting direction, so that the response speed of the liquid crystal can be improved.
以上所述仅为本发明的实施方式，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。 The above is only the embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the invention and the drawings are directly or indirectly applied to other related technologies. The fields are all included in the scope of patent protection of the present invention.

Claims (15)

  1. 一种液晶显示面板，其中，包括第一基板、第二基板以及位于所述第一基板和所述第二基板之间的液晶层；A liquid crystal display panel, comprising: a first substrate, a second substrate, and a liquid crystal layer between the first substrate and the second substrate;
    所述第一基板邻近所述液晶层的一侧设置有第一电极，所述第二基板邻近所述液晶层的一侧设置有第二电极；所述液晶层中还设置有聚合物单体；a first electrode is disposed on a side of the first substrate adjacent to the liquid crystal layer, a second electrode is disposed on a side of the second substrate adjacent to the liquid crystal layer, and a polymer monomer is further disposed in the liquid crystal layer ;
    所述第二基板包括不透光区域，所述不透光区域位于所述第一电极的垂直投影区域内，所述第二电极或所述第一电极上设置有突起结构，所述突起结构位于所不透光区域的垂直投影区域内，所述突起结构的表面涂布有配向膜，所述配向膜和所述聚合物单体共同作用以使得位于所述第一电极和所述第二电极之间的液晶层中的液晶分子具有预倾角；The second substrate includes an opaque region, the opaque region is located in a vertical projection area of the first electrode, and the second electrode or the first electrode is provided with a protrusion structure, and the protrusion structure Located in a vertical projection area of the opaque region, the surface of the protruding structure is coated with an alignment film, the alignment film and the polymer monomer coacting to be located at the first electrode and the second The liquid crystal molecules in the liquid crystal layer between the electrodes have a pretilt angle;
    所述突起结构为规则形状，以使得位于所述第一电极和所述第二电极之间的液晶层具有两个以上的液晶分子倾倒方向不同的液晶区域。The protrusion structure has a regular shape such that a liquid crystal layer located between the first electrode and the second electrode has two or more liquid crystal regions in which liquid crystal molecules are tilted in different directions.
  2. 根据权利要求1所述的液晶显示面板，其中，The liquid crystal display panel according to claim 1, wherein
    所述突起结构为圆锥、锥台、柱状体或多边体，并且所述突起结构的顶端与对端电极内表面接触或不接触。The protruding structure is a cone, a truncated cone, a columnar body or a polygonal body, and the top end of the protruding structure is in contact with or not in contact with the inner surface of the opposite electrode.
  3. 根据权利要求2所述的液晶显示面板，其中，The liquid crystal display panel according to claim 2, wherein
    所述对端电极没有鱼骨状结构、突起和裂缝。The counter electrode has no fishbone structures, protrusions and cracks.
  4. 根据权利要求1所述的液晶显示面板，其中，The liquid crystal display panel according to claim 1, wherein
    所述第二基板为彩色滤光基板，所述突起结构设置在所述第二电极上，所述突起结构为利用与黑色矩阵膜层、色阻膜层或光阻间隙物膜层相同的材料制成。The second substrate is a color filter substrate, and the protrusion structure is disposed on the second electrode, and the protrusion structure is made of the same material as the black matrix film layer, the color resist film layer or the photoresist spacer film layer. production.
  5. 根据权利要求1所述的液晶显示面板，其中，The liquid crystal display panel according to claim 1, wherein
    所述液晶显示面板还包括吸收轴相互垂直的上偏光片和下偏光片，所述上偏光片设置在所述第二基板背向所述液晶层的一侧，所述下偏光片设置在所述第一基板背向所述液晶层的一侧，所述上偏光片和所述下偏光片为圆偏光片。The liquid crystal display panel further includes an upper polarizer and a lower polarizer whose absorption axes are perpendicular to each other, the upper polarizer is disposed on a side of the second substrate facing away from the liquid crystal layer, and the lower polarizer is disposed at the The first substrate faces away from the side of the liquid crystal layer, and the upper polarizer and the lower polarizer are circular polarizers.
  6. 一种液晶显示面板，其中，包括第一基板、第二基板以及位于所述第一基板和所述第二基板之间的液晶层；A liquid crystal display panel, comprising: a first substrate, a second substrate, and a liquid crystal layer between the first substrate and the second substrate;
    所述第一基板邻近所述液晶层的一侧设置有第一电极，所述第二基板邻近所述液晶层的一侧设置有第二电极；a first electrode is disposed on a side of the first substrate adjacent to the liquid crystal layer, and a second electrode is disposed on a side of the second substrate adjacent to the liquid crystal layer;
    所述第二基板包括不透光区域，所述不透光区域位于所述第一电极的垂直投影区域内，所述第二电极或所述第一电极上设置有突起结构，所述突起结构位于所不透光区域的垂直投影区域内，所述突起结构的表面涂布有配向膜，以使得位于所述第一电极和所述第二电极之间的液晶层中的液晶分子具有预倾角。The second substrate includes an opaque region, the opaque region is located in a vertical projection area of the first electrode, and the second electrode or the first electrode is provided with a protrusion structure, and the protrusion structure Located in a vertical projection area of the opaque region, the surface of the protrusion structure is coated with an alignment film such that liquid crystal molecules in the liquid crystal layer between the first electrode and the second electrode have a pretilt angle .
  7. 根据权利要求6所述的液晶显示面板，其中，The liquid crystal display panel according to claim 6, wherein
    所述突起结构为规则形状，以使得位于所述第一电极和所述第二电极之间的液晶层具有两个以上的液晶分子倾倒方向不同的液晶区域。The protrusion structure has a regular shape such that a liquid crystal layer located between the first electrode and the second electrode has two or more liquid crystal regions in which liquid crystal molecules are tilted in different directions.
  8. 根据权利要求7所述的液晶显示面板，其中，The liquid crystal display panel according to claim 7, wherein
    所述突起结构为圆锥、锥台、柱状体或多边体，并且所述突起结构的顶端与对端电极内表面接触或不接触。The protruding structure is a cone, a truncated cone, a columnar body or a polygonal body, and the top end of the protruding structure is in contact with or not in contact with the inner surface of the opposite electrode.
  9. 根据权利要求8所述的液晶显示面板，其中，The liquid crystal display panel according to claim 8, wherein
    所述对端电极没有鱼骨状结构、突起和裂缝。The counter electrode has no fishbone structures, protrusions and cracks.
  10. 根据权利要求6所述的液晶显示面板，其中，The liquid crystal display panel according to claim 6, wherein
    所述第二基板为彩色滤光基板，所述突起结构设置在所述第二电极上，所述突起结构为利用与黑色矩阵膜层、色阻膜层或光阻间隙物膜层相同的材料制成。The second substrate is a color filter substrate, and the protrusion structure is disposed on the second electrode, and the protrusion structure is made of the same material as the black matrix film layer, the color resist film layer or the photoresist spacer film layer. production.
  11. 根据权利要求6所述的液晶显示面板，其中，The liquid crystal display panel according to claim 6, wherein
    所述液晶显示面板还包括吸收轴相互垂直的上偏光片和下偏光片，所述上偏光片设置在所述第二基板背向所述液晶层的一侧，所述下偏光片设置在所述第一基板背向所述液晶层的一侧，所述上偏光片和所述下偏光片为圆偏光片。The liquid crystal display panel further includes an upper polarizer and a lower polarizer whose absorption axes are perpendicular to each other, the upper polarizer is disposed on a side of the second substrate facing away from the liquid crystal layer, and the lower polarizer is disposed at the The first substrate faces away from the side of the liquid crystal layer, and the upper polarizer and the lower polarizer are circular polarizers.
  12. 根据权利要求6所述的液晶显示面板，其中，The liquid crystal display panel according to claim 6, wherein
    所述液晶层中还设置有聚合物单体，所述聚合物单体和所述配向膜共同作用以使得位于所述第一电极和所述第二电极之间的液晶层中的液晶分子具有预倾角。Also provided in the liquid crystal layer is a polymer monomer, the polymer monomer and the alignment film coacting to cause liquid crystal molecules in the liquid crystal layer between the first electrode and the second electrode to have Pretilt angle.
  13. 一种液晶显示面板的制造方法，其中，包括：A method of manufacturing a liquid crystal display panel, comprising:
    提供第一基板、第二基板以及液晶，其中，所述第二基板包括不透光区域；Providing a first substrate, a second substrate, and a liquid crystal, wherein the second substrate includes an opaque region;
    在所述第一基板的一侧形成第一电极，在所述第二基板的一侧形成第二电极；Forming a first electrode on one side of the first substrate and a second electrode on one side of the second substrate;
    在所述第一电极或所述第二电极上形成突起结构，并在所述突起结构的表面涂布配向膜；Forming a protrusion structure on the first electrode or the second electrode, and coating an alignment film on a surface of the protrusion structure;
    将所述第一基板和所述第二基板对盒，且所述第一电极与所述第二电极位于所述第一基板和所述第二基板之间，使所述不透光区域位于所述第一电极在所述第二基板上的垂直投影区域内，并使所述突起结构位于所述不透光区域的垂直投影区域内；Aligning the first substrate and the second substrate with the first electrode and the second electrode between the first substrate and the second substrate, so that the opaque region is located The first electrode is in a vertical projection area on the second substrate, and the protrusion structure is located in a vertical projection area of the opaque area;
    在所述第一基板和所述第二基板之间注入所述液晶以在所述第一基板和所述第二基板之间形成液晶层，在所述配向膜的作用下位于所述第一电极和所述第二电极之间的液晶层中的液晶分子具有预倾角。Injecting the liquid crystal between the first substrate and the second substrate to form a liquid crystal layer between the first substrate and the second substrate, and the first layer is located under the action of the alignment film The liquid crystal molecules in the liquid crystal layer between the electrode and the second electrode have a pretilt angle.
  14. 根据权利要求13所述的方法，其中，The method of claim 13 wherein
    所述在所述第一电极或第二电极上形成突起结构的步骤包括：The step of forming a protrusion structure on the first electrode or the second electrode includes:
    在所述第一电极或第二电极上形成规则形状的突起结构，以使得位于所述第一电极和所述第二电极之间的液晶层具有两个以上的液晶分子倾倒方向不同的液晶区域。Forming a protrusion structure of a regular shape on the first electrode or the second electrode such that a liquid crystal layer located between the first electrode and the second electrode has two or more liquid crystal regions having different liquid crystal molecules in a different tilting direction .
  15. 根据权利要求14所述的方法，其中，The method of claim 14 wherein
    所述在所述第一电极或第二电极上形成规则形状的突起结构的步骤包括：The step of forming a regular shaped protrusion structure on the first electrode or the second electrode includes:
    在所述第一电极或第二电极上形成圆锥、锥台、柱状体或多边体的突起结构，并且使所述突起结构的顶端与对端电极内表面接触或不接触。A protrusion structure of a cone, a frustum, a columnar body or a polygonal body is formed on the first electrode or the second electrode, and the tip end of the protrusion structure is brought into contact with or not in contact with the inner surface of the opposite electrode.
PCT/CN2014/084636 2014-08-13 2014-08-18 Liquid crystal display panel and manufacturing method therefor WO2016023237A1 (en)

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