WO2022120783A1 - 像素电极、像素结构、显示面板及显示装置 - Google Patents

像素电极、像素结构、显示面板及显示装置 Download PDF

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Publication number
WO2022120783A1
WO2022120783A1 PCT/CN2020/135623 CN2020135623W WO2022120783A1 WO 2022120783 A1 WO2022120783 A1 WO 2022120783A1 CN 2020135623 W CN2020135623 W CN 2020135623W WO 2022120783 A1 WO2022120783 A1 WO 2022120783A1
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Prior art keywords
electrode
electrodes
pixel
sub
display panel
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PCT/CN2020/135623
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English (en)
French (fr)
Inventor
任伟
李伟
李岩锋
辛昊毅
李静
徐晶晶
乔琛嵘
宋燕勇
乔旭
沙如拉
张敏
Original Assignee
京东方科技集团股份有限公司
鄂尔多斯市源盛光电有限责任公司
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Application filed by 京东方科技集团股份有限公司, 鄂尔多斯市源盛光电有限责任公司 filed Critical 京东方科技集团股份有限公司
Priority to PCT/CN2020/135623 priority Critical patent/WO2022120783A1/zh
Priority to US17/441,272 priority patent/US20230296942A1/en
Priority to CN202080003299.XA priority patent/CN115210641B/zh
Publication of WO2022120783A1 publication Critical patent/WO2022120783A1/zh
Priority to US17/976,079 priority patent/US20230047799A1/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
    • 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
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13454—Drivers integrated on the active matrix substrate

Definitions

  • the present application relates to the field of display technology, and in particular, to a pixel electrode, a pixel structure, a display panel and a display device.
  • LCDs Liquid crystal display panels
  • the present application provides a pixel electrode, a pixel structure, a display panel and a display device, and the technical solutions are as follows:
  • a pixel electrode comprising:
  • a plurality of strip-shaped first electrodes, the plurality of first electrodes are arranged along a first direction, and each of the first electrodes extends along a second direction, and the second direction intersects with the first direction ;
  • the second electrode is connected to the first ends of the plurality of first electrodes, and the first ends of the plurality of first electrodes are communicated through the second electrodes;
  • the third electrode is connected to the second end of at least one of the first electrodes, and the direction of the electric field in the region where the third electrode is located intersects both the first direction and the second direction .
  • the extending direction of the third electrode is parallel to the first direction, and at least one of the first end and the second end of the third electrode is opposite to the second ends of the plurality of first electrodes protruding in a direction away from the plurality of first electrodes.
  • the first end of the third electrode is connected to the second end of at least one of the first electrodes, and the second end of the third electrode is opposite to the second ends of the plurality of first electrodes. Protruding in a direction away from the plurality of first electrodes.
  • the first end of the third electrode is connected to the second end of the first target electrode in the plurality of first electrodes;
  • the other first electrodes except the first target electrode among the plurality of first electrodes are all located on one side of the first target electrode.
  • the first end of the third electrode is connected to the second end of each of the first electrodes.
  • the third electrode includes: a first sub-electrode and a second sub-electrode;
  • the first end of the first sub-electrode is connected to the second end of the first target electrode in the plurality of first electrodes, and the second end of the first sub-electrode is opposite to the second end of the first target electrode.
  • the two ends protrude in a direction away from the plurality of first electrodes;
  • the first end of the second sub-electrode is connected to the second end of the second target electrode in the plurality of first electrodes, and the second end of the first sub-electrode is opposite to the second end of the second target electrode.
  • the two ends protrude in a direction away from the plurality of first electrodes;
  • the other first electrodes in the plurality of first electrodes except the first target electrode are all located on one side of the first target electrode, and the plurality of first electrodes except the second target The other first electrodes other than the electrodes are all located on one side of the second target electrode.
  • the third electrode is connected to the second end of each of the first electrodes, and both the first end and the second end of the third electrode are opposite to the first ends of the plurality of first electrodes.
  • the two ends protrude in a direction away from the plurality of first electrodes.
  • the shape of the protruding end of the third electrode is a trapezoid or a triangle
  • the width of one side of the protruding end of the third electrode away from the plurality of first electrodes is smaller than the width of the side of the protruding end of the third electrode close to the plurality of first electrodes.
  • the extending direction of the third electrode intersects both the first direction and the second direction, the first end of the third electrode is connected to the second end of one of the first electrodes, and There is at most one bent portion between the first end and the second end of the third electrode.
  • the first part between the first end of the third electrode and the bending part, and the second part between the second end of the third electrode and the bending part are all strips like structure, the extension direction of the first part intersects with the extension direction of the second part;
  • the bent portion is in an arc shape.
  • the first end of the third electrode is connected to the second end of one of the first electrodes, and the second end of the third electrode is connected to the second end of the other first electrode.
  • the third electrode includes: a strip-shaped third sub-electrode and a strip-shaped fourth sub-electrode, and the extending direction of the third sub-electrode intersects with the extending direction of the fourth sub-electrode;
  • the first end of the third sub-electrode is connected to the second end of one of the first electrodes, the second end of the third sub-electrode is connected to the first end of the fourth sub-electrode, and the first The second end of the three sub-electrodes and the first end of the fourth sub-electrode form the bent portion, and the second end of the fourth sub-electrode is connected to the second end of the other first electrode.
  • the number of the first electrodes included in the pixel electrode is greater than or equal to 3;
  • the other first electrodes in the plurality of first electrodes except the two first electrodes connected to the first end and the second end of the third electrode are all located between the two first electrodes.
  • the second end of at least one of the other first electrodes is connected to the middle portion of the third electrode, and the middle portion of the third electrode is located between the first end and the second end of the third electrode.
  • a pixel structure in another aspect, includes: a common electrode, a liquid crystal layer, and the pixel electrode according to the above aspect;
  • the common electrode and the pixel electrode are used for driving liquid crystal deflection in the liquid crystal layer.
  • a display panel in yet another aspect, includes: a base substrate, and a plurality of pixel structures according to the above aspects disposed on the base substrate.
  • the display panel further includes: a pixel circuit and a passivation layer;
  • the pixel circuit, the common electrode in the pixel structure, the passivation layer, and the pixel electrode in the pixel structure are sequentially stacked along a side away from the base substrate;
  • the common electrode has a first via hole
  • the passivation layer has a second via hole that communicates with the first via hole
  • the second electrode in the pixel electrode passes through the first via hole and the second via hole.
  • the second via hole is connected to the pixel circuit.
  • a display device comprising: a driving circuit and the display panel according to the above aspect;
  • the driving circuit is used for providing driving signals for the pixel structure in the display panel.
  • FIG. 1 is a schematic structural diagram of a pixel electrode in the related art
  • FIG. 2 is a schematic diagram of a liquid crystal rotation provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of liquid crystal rotation in a display panel provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of liquid crystal rotation in a display panel in the related art
  • FIG. 5 is a schematic diagram of the electric field of the pixel electrode shown in FIG. 1;
  • FIG. 6 is a schematic structural diagram of a pixel electrode provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of the electric field of the pixel electrode shown in FIG. 6;
  • FIG. 8 is a schematic diagram of liquid crystal rotation in the display panel after the pressing force is released according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of another pixel electrode provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of the electric field of the pixel electrode shown in FIG. 9;
  • FIG 11 is another schematic diagram of the liquid crystal rotation in the display panel after the pressing force is released according to the embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of another pixel electrode provided by an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of still another pixel electrode provided by an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of still another pixel electrode provided by an embodiment of the present application.
  • FIG. 15 is a schematic diagram of the electric field of the pixel electrode shown in FIG. 14;
  • 16 is another schematic diagram of the liquid crystal rotation in the display panel after the pressing force is released according to the embodiment of the present application.
  • FIG. 17 is a schematic structural diagram of still another pixel electrode provided by an embodiment of the present application.
  • FIG. 18 is a schematic diagram of the electric field of the pixel electrode shown in FIG. 17;
  • FIG. 19 is a schematic diagram of still another liquid crystal rotation in the display panel after the pressing force is released according to an embodiment of the present application.
  • FIG. 20 is a schematic structural diagram of still another pixel electrode provided by an embodiment of the present application.
  • 21 is a schematic structural diagram of a pixel structure provided by an embodiment of the present application.
  • FIG. 22 is a schematic structural diagram of a display panel provided by an embodiment of the present application.
  • FIG. 23 is a schematic structural diagram of a display device provided by an embodiment of the present application.
  • a pixel electrode in a liquid crystal display panel generally includes a plurality of strip electrodes, a first connection electrode for connecting one end of the plurality of strip electrodes, and a second connection electrode for connecting the other ends of the plurality of strip electrodes. Connect the electrodes. Both the extension direction of the first connection electrode and the extension direction of the second connection electrode intersect with the extension direction of the plurality of strip electrodes.
  • FIG. 1 is a schematic structural diagram of a pixel electrode provided in the related art.
  • the pixel electrode 10 includes a plurality of first electrodes 101 , second electrodes 102 and third electrodes 103 .
  • the second electrode 102 is connected to one end of the plurality of first electrodes 101 , and one end of the plurality of first electrodes 101 is communicated through the second electrode 102 .
  • the third electrode 103 is connected to the other ends of the plurality of first electrodes 101 , and the other ends of the plurality of first electrodes 101 are communicated through the third electrodes 103 . Wherein, both ends of the first electrode 101 have no corners.
  • the electric field of the middle region 10 a of the pixel electrode 10 is determined by the first electrode 101 .
  • the electric field of the first region 10b of the pixel electrode 10 close to the second electrode 102 is jointly determined by the second electrode 102 and the first electrode 101 .
  • the electric field of the second region 10 c of the pixel electrode 10 close to the third electrode 103 is jointly determined by the third electrode 103 and the first electrode 101 .
  • the first area 10b of the pixel electrode 10 is used for connecting with the pixel circuit in the display panel, so that the pixel circuit provides a driving signal for the pixel electrode.
  • the common electrode in the display panel is located between the pixel electrode and the pixel circuit, the common electrode may have a through hole, so that the pixel electrode is connected to the pixel circuit through the through hole. Since the through hole of the common electrode is located in the first region 10b, the first region 10b has no electric field or a weak electric field.
  • the liquid crystal located in the first region 10b is mainly balanced under the action of the anchoring force of the film layer located on the side of the pixel electrode 10 away from the base substrate.
  • the liquid crystal located in the middle region 10a in the display panel can be anchored in the electric field and the film layer on the side of the pixel electrode 10 away from the base substrate. balance under the action of force.
  • the common electrode does not have a through hole in the second area 10c, the area where the third electrode 103 and the first electrode 101 are located can form an electric field, and the liquid crystal located in the second area 10c in the display panel is located in the third electrode 103 and the first electrode 101.
  • the formed electric field and the anchoring force of the film layer on the side of the pixel electrode 10 away from the base substrate reach a balance.
  • the liquid crystal located in the middle area 10a of the pixel electrode 10 and the liquid crystal located in the second area 10c will be affected by the electric field and reach equilibrium, so it can be analyzed whether the liquid crystal in these two areas can reach equilibrium under the action of the electric field .
  • the electric field F and the anchoring force f on the pixel electrode 10 may be equal, and the liquid crystal is in an equilibrium state under the action of the electric field F and the anchoring force f.
  • the liquid crystal in the display panel will rotate under the action of the electric field F, the anchoring force f, and the pressing force P.
  • the liquid crystals located in the middle area 10a of the pixel electrode 10, the first area 10b, and the second area 10c of the display panel all rotate.
  • the liquid crystal in the middle region 10a in the display panel can re-equilibrate (restore as before) under the action of the electric field. Since the electric field direction of the second region 10c of the pixel electrode 10 is determined based on the first electrode 101 and the third electrode 103 in different extension directions, referring to FIG. 5 , the electric field direction of the second region 10c of the pixel electrode 10 will be relatively disorder. Referring to FIG.
  • the arrangement of the liquid crystals in the second region 10c in the display panel is relatively disordered (difficult to restore), which in turn leads to the problem of darkening in local positions of the display panel, that is, the problem of uniformity of scratches on the display panel.
  • the embodiment of the present application provides a pixel electrode, which can solve the problem that the display panel is prone to scratch uniformity in the related art.
  • the pixel electrode 20 may include: a plurality of strip-shaped first electrodes 201 , second electrodes 202 , and third electrodes 203 .
  • the plurality of first electrodes 201 may be arranged along the first direction X, and each of the first electrodes 201 may extend along the second direction Y, and the second direction Y may intersect the first direction X.
  • the first direction X may be the pixel row direction
  • the second direction Y may intersect both the pixel row direction and the pixel column direction.
  • the second electrode 202 may be connected to the first ends of the plurality of first electrodes 201 , and the first ends of the plurality of first electrodes 201 may be communicated through the second electrodes 202 . That is, each of the first electrodes 201 may be connected with the second electrodes 202 .
  • the second electrode 202 can be used to connect with a pixel circuit in the display panel, so that the pixel circuit can provide a driving signal for the pixel electrode through the second electrode 202 .
  • the third electrode 203 may be connected to the second end of the at least one first electrode 201 , and the direction of the electric field in the region where the third electrode 203 is located intersects both the first direction X and the second direction Y. Therefore, referring to FIG. 7 , the direction of the electric field at the connection between the second end of the first electrode 201 and the third electrode 203 may be relatively regular.
  • the liquid crystals located at the first electrode 201 , the second electrode 202 , and the third electrode 203 of the pixel electrode 20 in the display panel all rotate.
  • the liquid crystals located at the connection between the third electrodes 203 and the first electrodes 201 in the display panel can be arranged in the third
  • the electrodes 203 and the first electrodes 201 are regularly arranged under the action of the electric field formed. Therefore, the problem of uniformity of scratches on the display panel can be avoided, and the display effect of the display panel is better.
  • an embodiment of the present application provides a pixel electrode, the pixel electrode includes a third electrode connected to the other end of at least one first electrode, and the direction of the electric field in the region where the third electrode is located is the same as the first direction and the The second directions all intersect.
  • the direction of the electric field formed at the connection between the third electrode and the second end of the first electrode is relatively regular, so that the liquid crystals in the display panel located at the connection between the third electrode and the first electrode are regularly arranged under the action of the electric field, preventing display There is a problem of scratch uniformity on the panel, and the display effect of the display panel is better.
  • the plurality of first electrodes 201 are linear, so the liquid crystals of the display panel have the same orientation in each region of the plurality of first electrodes 201 , there will be no dark areas on the display panel, and the High light efficiency.
  • the third electrode 203 may extend along the first direction X, and the third electrode 203 may be connected to the second end of the at least one first electrode 201, and the first end of the third electrode 203 and At least one of the second ends protrudes in a direction away from the plurality of first electrodes 201 relative to the second ends of the plurality of first electrodes 201 .
  • the second ends of the first electrodes 201 and The angle between the connection direction between the protruding ends of the third electrode 203 and the extending direction of the first electrode 201 may be relatively small.
  • the direction of the electric field at the connection between the second end of the first electrode 201 and the third electrode 203 may be relatively regular.
  • the first end of the third electrode 203 may be connected to the second end of at least one first electrode 201 , and the second end of the third electrode 203 may be opposite to the first end of the plurality of first electrodes 201 .
  • the two ends protrude in a direction away from the plurality of first electrodes 201 .
  • the first end of the third electrode 203 can be connected to the second end of each first electrode 201 .
  • the first end of the third electrode 203 may be connected to the second end of the first target electrode 201 a in the plurality of first electrodes 201 except for the first target electrode 201 a in the plurality of first electrodes 201
  • the other first electrodes 201 are all located on one side of the first target electrode 201a. That is, the first target electrode 201a is the first electrode 201 located at the edge among the plurality of first electrodes 201 .
  • the first target electrode 201 a is the rightmost first electrode among the plurality of first electrodes 201 .
  • the first target electrode 201a may also be the leftmost first electrode among the plurality of first electrodes 201a.
  • connection direction between the protruding end of the third electrode 203 included in the pixel electrode 20 and the second end of the plurality of first electrodes 201 is the same direction, so refer to FIG. 7 and FIG. 10.
  • the direction of the electric field formed by the third electrode 203 and the second ends of the plurality of first electrodes 201 is also the same direction.
  • the liquid crystals at the first electrode 201 , the second electrode 202 , and the third electrode 203 of the pixel electrode 20 in the display panel all rotate.
  • the liquid crystal at the connection between the third electrode 203 and the first electrode 201 in the display panel can rotate under the action of the electric field formed by the third electrode 203 and the second end of the first electrode 201 . Since the direction of the electric field formed by the third electrode 203 and the second ends of the plurality of first electrodes 201 is the same direction, the liquid crystal in the display panel located at the connection between the third electrode 203 and the first electrode 201 can be affected by the electric field.
  • the bottom is arranged in the same direction, and the display effect of the display panel can be better.
  • the number of alignment directions of the liquid crystals located at the connection between the third electrode 203 and the first electrode 201 in the display panel may be related to the electric field formed by the third electrode 203 and the second ends of the plurality of first electrodes 201
  • the number of directions is positively correlated.
  • the smaller the number of alignment directions of the liquid crystals located at the connection between the third electrode 203 and the first electrode 201 in the display panel the more regular the alignment of the liquid crystals. That is, the smaller the number of directions of the electric field formed by the third electrode 203 and the second ends of the plurality of first electrodes 201, the higher the alignment of the liquid crystal at the connection between the third electrode 203 and the first electrode 201 in the display panel can be. rule, the better the display effect of the display panel.
  • FIG. 12 is a schematic structural diagram of still another pixel electrode provided by an embodiment of the present application.
  • the third electrode 203 may include: a first sub-electrode 2031a and a second sub-electrode 2032a.
  • the first end of the first sub-electrode 2031a may be connected to the second end of the first target electrode 201a in the plurality of first electrodes 201, and the second end of the first sub-electrode 2031a is opposite to the second end of the first target electrode 201a.
  • the two ends protrude in a direction away from the plurality of first electrodes 201 .
  • the first end of the second sub-electrode 2032a may be connected to the second end of the second target electrode 201b in the plurality of first electrodes 201, and the second end of the second sub-electrode 2032a is opposite to the second end of the second target electrode 201b
  • the two ends protrude in a direction away from the plurality of first electrodes 201 .
  • the other first electrodes except the first target electrode 201a in the plurality of first electrodes 201 may all be located on one side of the first target electrode 201a.
  • the other first electrodes except the second target electrode 201b among the plurality of first electrodes 201 may all be located on one side of the second target electrode 201b. That is, the first target electrode 201a and the second target electrode 201b may be the first electrodes 201 located at two edges of the plurality of first electrodes 201, respectively.
  • the first target electrode 201 a is the rightmost first electrode among the plurality of first electrodes 201
  • the second target electrode 201 b is the leftmost first electrode among the plurality of first electrodes 201 .
  • the direction of the electric field formed by the first sub-electrode 2031a and the second end of the first target electrode 201a is the same as the direction of the electric field formed by the second sub-electrode 2032a and the second end of the second target electrode 201b.
  • the directions are different.
  • the alignment direction of the liquid crystal at the connection between the first sub-electrode 2031a and the second end of the first target electrode 201a in the display panel can be the same as that of the liquid crystal at the second end of the second sub-electrode 2032a and the second target electrode 201b in the display panel.
  • the alignment directions of the liquid crystals at the junctions are different.
  • the display panel is located at the connection between the third electrode 203 and the first electrode 201.
  • the liquid crystals are arranged regularly, and the display effect of the display panel can be better.
  • FIG. 13 is a schematic structural diagram of still another pixel electrode provided by an embodiment of the present application.
  • the third electrode 203 may be connected to the second end of each of the first electrodes 201 , and the first end and the second end of the third electrode 203 are opposite to the plurality of first electrodes 201 .
  • the second end protrudes in a direction away from the plurality of first electrodes 201 .
  • the connection directions between the protruding ends of the third electrode 203 and the second ends of the first electrodes 201 are different, the protruding ends of the third electrode 203 and the second ends of the first electrodes 201 are in different directions.
  • the direction of the formed electric field is different.
  • the number of directions of the electric field formed by the third electrode 203 and the second ends of the plurality of first electrodes 201 is also less, and the display effect of the display panel can be better.
  • the directions of the electric fields formed by the protruding ends of the third electrodes 203 and the second ends of the plurality of first electrodes 201 are different, the alignment directions of the liquid crystals at the ends of the third electrodes 203 in the display panel are different.
  • the shape of the protruding end of the third electrode 203 may be a trapezoid or a triangle.
  • the width d1 of the protruding end of the third electrode 203 away from the first electrodes 201 may be smaller than the width d2 of the protruding end of the third electrode 203 close to the first electrodes 201 .
  • the shape of the protruding end of the third electrode 203 may also be other shapes, which are not limited in this embodiment of the present application.
  • the electric field formed by the third electrode 203 and the second ends of the plurality of first electrodes 201 is the distance between one end protruding from the third electrode 203 and the plurality of first electrodes 201 d3 is determined together with the width d2 of the side of the protruding end of the third electrode close to the plurality of first electrodes 201 .
  • the distance d3 between the protruding end of the third electrode 203 and the plurality of first electrodes 201 has a correlation with the width d2 of the protruding end of the third electrode close to the side of the first electrodes 201 .
  • the width d2 of one side of the protruding end of the third electrode 203 close to the plurality of first electrodes 201 is less than or equal to 2.5 ⁇ m, and the protruding end of the third electrode 203 is between the plurality of first electrodes 201 .
  • the distance d3 is greater than or equal to 1.2 ⁇ m, the display panel does not have the problem of scratch uniformity.
  • the width d2 of one side of the protruding end of the third electrode close to the plurality of first electrodes 201 is greater than 2.5 ⁇ m and less than or equal to 3.5 ⁇ m, and the width d2 between the protruding end of the third electrode 203 and the plurality of first electrodes 201 When the distance d3 is greater than or equal to 1.87 ⁇ m, the display panel does not have the problem of scratch uniformity.
  • the width d2 of one side of the protruding end of the third electrode close to the plurality of first electrodes 201 is greater than 3.5 ⁇ m and less than or equal to 4.5 ⁇ m, and the width d2 between the protruding end of the third electrode 203 and the plurality of first electrodes 201 When the distance d3 is greater than or equal to 3.3 ⁇ m, the display panel does not have the problem of scratch uniformity.
  • d2 ⁇ 2.5 ⁇ m in order to avoid the problem of scratch uniformity on the display panel, the following conditions must be satisfied: d2 ⁇ 2.5 ⁇ m, and d3 ⁇ 1.2 ⁇ m. Alternatively, 2.5 ⁇ m ⁇ d2 ⁇ 3.5 ⁇ m, and d3 ⁇ 1.87 ⁇ m. Alternatively, 3.5 ⁇ m ⁇ d2 ⁇ 4.5 ⁇ m, and d3 ⁇ 3.3 ⁇ m.
  • the extending direction of the third electrode 203 may intersect both the first direction X and the second direction Y, and the first end of the third electrode 203 may be connected to a first electrode The second end of the third electrode 201 is connected, and there may be at most one bent portion 203a between the first end and the other end of the third electrode 203 .
  • the portion of the third electrode 203 located on both sides of the bent portion 203 a is sandwiched between the extending direction of the first electrode 201 .
  • the angles can all be smaller.
  • the liquid crystals located at the connection between the third electrodes 203 and the first electrodes 201 in the display panel can be arranged in the third
  • the electrodes 203 and the first electrodes 201 are regularly arranged under the joint action, so as to avoid the problem of uniformity of scratches on the display panel, and the display effect of the display panel is better.
  • the liquid crystals are arranged in different directions on both sides of the bent portion 203a, but are located on the same side of the bent portion 203a.
  • the alignment directions of the liquid crystals on the sides are the same. That is, the liquid crystals located on the same side of the bent portion 203a are regularly arranged.
  • the third electrode 203 has at most one bending portion 203a, which can make the liquid crystal located at the connection between the third electrode 203 and the first electrode 201 to have at most two alignment directions, so as to avoid the problem of uniformity of scratches on the display panel. Display effect is better.
  • the first portion 203b between the first end of the third electrode 203 and the bent portion 203a, and the second portion 203c between the second end of the third electrode 203 and the bent portion 203a may be strips
  • the extending direction of the first portion 203b intersects with the extending direction of the second portion 203c.
  • the pixel electrode 20 may be in the shape of a pencil.
  • the third electrode 203 may include a strip-shaped third sub-electrode 2031b and a strip-shaped fourth sub-electrode 2032b, and the extension direction of the third sub-electrode 2031b may be the same as that of the fourth sub-electrode 2032b direction of extension.
  • One end of the third sub-electrode 2031b may be connected to the second end of a first electrode 201 .
  • the other end of the third sub-electrode 2031b may be connected to one end of the fourth sub-electrode 2032b, and the other end of the third sub-electrode 2031b and one end of the fourth sub-electrode 2032b form a bent portion 203a.
  • the other end of the fourth sub-electrode 2032b may be connected to the second end of the other first electrode 201 .
  • One end of the third sub-electrode 2031 b is the first end of the third electrode 203
  • the other end of the fourth sub-electrode 2032 b is the second end of the third electrode 203 .
  • FIG. 17 is a schematic structural diagram of still another pixel electrode provided by an embodiment of the present application.
  • the bent portion 203a may be in an arc shape.
  • the third electrode 203 may be an arc-shaped electrode.
  • the first end of the third electrode 203 may be connected to the second end of one first electrode 201 , and the second end of the third electrode 203 may be connected to the second end of another first electrode 201 connect. That is, two ends of the third electrode 203 are respectively connected with a first electrode 201 .
  • FIG. 18 is a schematic diagram of the electric field of the pixel electrode shown in FIG. 17 .
  • the electric field at the connection between the second end of the first electrode 201 and the third electrode 203 in the pixel electrode shown in FIG. 17 is relatively regular.
  • the liquid crystal at the first electrode 201 , the second electrode 202 , and the third electrode 203 of the pixel electrode 20 in the display panel all rotate.
  • the liquid crystals located at the connection between the third electrodes 203 and the first electrodes 201 in the display panel can be arranged in the third
  • the electrodes 203 and the first electrodes 201 are regularly arranged under the joint action, so as to avoid the problem of uniformity of scratches on the display panel, and the display effect of the display panel is better.
  • the number of the first electrodes 201 included in the pixel electrode 20 may be greater than or equal to 3, and the number of the first electrodes 201 in the plurality of first electrodes 201 is divided into two connected to the first end and the second end of the third electrode 203 .
  • the other first electrodes other than the first electrode 201 may all be located between the two first electrodes 201 . That is, the two first electrodes 201 connected to the first end and the other end of the third electrode 203 may be the two first electrodes 201 located at the edge among the plurality of first electrodes 201 , respectively.
  • the plurality of first electrodes 201 may include one other first electrode. If the number of the first electrodes 201 included in the pixel electrode 20 is greater than 3, the plurality of first electrodes 201 may include a plurality of other first electrodes.
  • FIG. 20 is a schematic structural diagram of still another pixel electrode provided by an embodiment of the present application.
  • the other end of at least one other first electrode 201 c may be connected to the middle portion of the third electrode 203 , and the middle portion of the third electrode 203 may be located between the first end and the other end of the third electrode 203 .
  • the length of the other first electrode 201c is longer than the length of the first electrode 201 to which the first end and the second end of the third electrode 203 are connected.
  • an embodiment of the present application provides a pixel electrode, the pixel electrode includes a third electrode connected to the other end of at least one first electrode, and the direction of the electric field in the region where the third electrode is located is the same as the first direction and the The second directions all intersect.
  • the direction of the electric field formed at the connection between the third electrode and the second end of the first electrode is relatively regular, so that the liquid crystals in the display panel located at the connection between the third electrode and the first electrode are regularly arranged under the action of the electric field, preventing display There is a problem of scratch uniformity on the panel, and the display effect of the display panel is better.
  • FIG. 21 is a schematic structural diagram of a pixel structure provided by an embodiment of the present application.
  • the pixel structure 001 may include: a common electrode 30 , a liquid crystal layer 40 , and the pixel electrode 20 provided in the above embodiments.
  • the common electrode 30 and the pixel electrode 20 can be used to drive the liquid crystal deflection in the liquid crystal layer 40 .
  • FIG. 22 is a schematic structural diagram of a display panel provided by an embodiment of the present application.
  • the display panel 00 may include: a base substrate 002, and a plurality of pixel structures 001 provided on the base substrate 002 as provided in the above embodiments.
  • the display panel 00 may further include: a pixel circuit 003 and a passivation layer 004 .
  • the pixel circuit 003 , the common electrode 30 in the pixel structure 001 , the passivation layer 004 , and the pixel electrode 20 in the pixel structure 003 , and the liquid crystal layer 40 in the pixel structure 003 can be stacked along the side away from the base substrate 002 .
  • the common electrode 30 may have a first via hole
  • the passivation layer 004 may have a second via hole communicating with the first via hole
  • the second electrode 202 of the pixel electrode 20 may pass through the first via hole and the second via hole.
  • the two vias are connected to the pixel circuit 003 .
  • the pixel circuit 003 may include: a transistor.
  • the gate of the transistor may be connected to the gate line, the source of the transistor may be connected to the data line, and the drain of the transistor may be connected to the pixel electrode 20 .
  • the drain of the transistor may be connected to the second electrode 202 in the pixel electrode 20 .
  • the display panel 00 may further include: a color filter substrate 005 .
  • the color filter substrate 005 may be located on the side of the pixel structure 001 away from the base substrate 002 .
  • the color filter substrate 003 can be used to convert light into colored light.
  • FIG. 23 is a schematic structural diagram of a display device provided by an embodiment of the present application.
  • the display device may include: a driving circuit 01 and the display panel 00 described in the above embodiments.
  • the driving circuit 01 can be used to provide driving signals for the pixel structure 001 in the display panel 00 .
  • the driving circuit 01 may include: a gate driving circuit 011 and a source driving circuit 012 .
  • the gate driving circuit 011 can be connected to each row of pixel structures 001 in the display panel 00 through gate lines, and is used to provide gate driving signals for each row of pixel structures 001 .
  • the source driving circuit 012 can be connected to each column of pixel structures 001 in the display panel 00 through data lines, and is used to provide data signals for each column of pixel structures 001 .
  • the display device may be any product or component with a display function, such as a liquid crystal display device, electronic paper, mobile phone, tablet computer, television, monitor, notebook computer, digital photo frame or navigator.
  • a display function such as a liquid crystal display device, electronic paper, mobile phone, tablet computer, television, monitor, notebook computer, digital photo frame or navigator.

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Abstract

一种像素电极(10, 20）、像素结构(001)、显示面板(00)及显示装置，涉及显示技术领域，像素电极(10, 20)包括的第三电极(103, 203)与至少一个第一电极(101, 201)的另一端连接，且第三电极(103, 203)所在区域的电场(F)的方向与第一方向(X)和第二方向(Y)均相交；第三电极(103, 203)和第一电极(101, 201)的第二端的连接处形成的电场(F)的方向较为规则，可以使得显示面板(00)中位于第三电极(103, 203)和第一电极(101, 201)连接处的液晶在电场(F)的作用下规则排列，避免显示面板(00)出现划痕均一性的问题，显示面板(00)的显示效果较好。

Description

像素电极、像素结构、显示面板及显示装置 技术领域
本申请涉及显示技术领域，特别涉及一种像素电极、像素结构、显示面板及显示装置。
背景技术
液晶显示面板(liquid crystal display，LCD)由于其耗电量较低被广泛应用于显示装置中。
发明内容
本申请提供了一种像素电极、像素结构、显示面板及显示装置，所述技术方案如下：
一方面，提供了一种像素电极，所述像素电极包括：
多个条状的第一电极，多个所述第一电极沿第一方向排布，且每个所述第一电极均沿第二方向延伸，所述第二方向与所述第一方向相交；
第二电极，所述第二电极与多个所述第一电极的第一端连接，多个所述第一电极的第一端通过所述第二电极连通；
以及第三电极，所述第三电极与至少一个所述第一电极的第二端连接，且所述第三电极所在区域的电场的方向与所述第一方向和所述第二方向均相交。
可选的，所述第三电极的延伸方向平行于所述第一方向，所述第三电极的第一端和第二端中的至少一端相对于多个所述第一电极的第二端向远离多个所述第一电极的方向凸出。
可选的，所述第三电极的第一端与至少一个所述第一电极的第二端连接，所述第三电极的第二端相对于多个所述第一电极的第二端向远离多个所述第一电极的方向凸出。
可选的，所述第三电极的第一端与多个所述第一电极中的第一目标电极的第二端连接；
多个所述第一电极中除所述第一目标电极之外的其他第一电极均位于所述 第一目标电极的一侧。
可选的，所述第三电极的第一端与每个所述第一电极的第二端均连接。
可选的，所述第三电极包括：第一子电极和第二子电极；
所述第一子电极的第一端与多个所述第一电极中的第一目标电极的第二端连接，所述第一子电极的第二端相对于所述第一目标电极的第二端向远离多个所述第一电极的方向凸出；
所述第二子电极的第一端与多个所述第一电极中的第二目标电极的第二端连接，所述第一子电极的第二端相对于所述第二目标电极的第二端向远离多个所述第一电极的方向凸出；
多个所述第一电极中除所述第一目标电极之外的其他第一电极，均位于所述第一目标电极的一侧，且多个所述第一电极中除所述第二目标电极之外的其他第一电极均位于所述第二目标电极的一侧。
可选的，所述第三电极与每个所述第一电极的第二端均连接，且所述第三电极的第一端和第二端均相对于多个所述第一电极的第二端向远离多个所述第一电极的方向凸出。
可选的，所述第三电极凸出的一端的形状为梯形或三角形；
其中，所述第三电极凸出的一端远离所述多个第一电极的一侧的宽度，小于所述第三电极凸出的一端靠近所述多个第一电极的一侧的宽度。
可选的，所述第三电极的延伸方向与所述第一方向和所述第二方向均相交，所述第三电极的第一端与一个所述第一电极的第二端连接，且所述第三电极的第一端和第二端之间具有至多一个弯折部。
可选的，所述第三电极的第一端和所述弯折部之间的第一部分，以及所述第三电极的第二端和所述弯折部之间的第二部分均为条状结构，所述第一部分的延伸方向和所述第二部分的延伸方向相交；
或者，所述弯折部呈弧形。
可选的，所述第三电极的第一端与一个所述第一电极的第二端连接，所述第三电极的第二端与另一个所述第一电极的第二端连接。
可选的，所述第三电极包括：条状的第三子电极和条状的第四子电极，所述第三子电极的延伸方向和所述第四子电极的延伸方向相交；
所述第三子电极的第一端与一个所述第一电极的第二端连接，所述第三子 电极的第二端与所述第四子电极的第一端连接，且所述第三子电极的第二端与所述第四子电极的第一端构成所述弯折部，所述第四子电极的第二端与另一个所述第一电极的第二端连接。
可选的，所述像素电极包括的所述第一电极的数量大于或等于3；
多个所述第一电极中除与所述第三电极的第一端和第二端连接的两个第一电极之外的其他第一电极，均位于所述两个第一电极之间。
可选的，至少一个所述其他第一电极的第二端与所述第三电极的中部连接，所述第三电极的中部位于所述第三电极的第一端和第二端之间。
另一方面，提供了一种像素结构，所述像素结构包括：公共电极，液晶层，以及如上述方面所述的像素电极；
所述公共电极和所述像素电极用于驱动所述液晶层中的液晶偏转。
又一方面，提供了显示面板，所述显示面板包括：衬底基板，以及设置在所述衬底基板上的多个如上述方面所述的像素结构。
可选的，所述显示面板还包括：像素电路以及钝化层；
所述像素电路，所述像素结构中的公共电极，所述钝化层，以及所述像素结构中的像素电极沿远离所述衬底基板的一侧依次层叠；
所述公共电极上具有第一过孔，所述钝化层上具有与所述第一过孔连通的第二过孔，所述像素电极中的第二电极通过所述第一过孔和所述第二过孔与所述像素电路连接。
再一方面，提供了一种显示装置，所述显示装置包括：驱动电路以及如上述方面所述的显示面板；
所述驱动电路用于为所述显示面板中的像素结构提供驱动信号。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是相关技术中的一种像素电极的结构示意图；
图2是本申请实施例提供的一种液晶转动的示意图；
图3是本申请实施例提供的一种显示面板中液晶转动的示意图；
图4是相关技术中显示面板中的液晶转动的示意图；
图5是图1所示的像素电极的电场的示意图；
图6是本申请实施例提供的一种像素电极的结构示意图；
图7是图6所示的像素电极的电场的示意图；
图8是本申请实施例提供的一种在挤压力释放后，显示面板中的液晶转动的示意图；
图9是本申请实施例提供的另一种像素电极的结构示意图；
图10是图9所示的像素电极的电场的示意图；
图11是本申请实施例提供的另一种在挤压力释放后，显示面板中的液晶转动的示意图；
图12是本申请实施例提供的又一种像素电极的结构示意图；
图13是本申请实施例提供的再一种像素电极的结构示意图；
图14是本申请实施例提供的再一种像素电极的结构示意图；
图15是图14所示的像素电极的电场的示意图；
图16是本申请实施例提供的又一种在挤压力释放后，显示面板中的液晶转动的示意图；
图17是本申请实施例提供的再一种像素电极的结构示意图；
图18是图17所示的像素电极的电场的示意图；
图19是本申请实施例提供的再一种在挤压力释放后，显示面板中的液晶转动的示意图；
图20是本申请实施例提供的再一种像素电极的结构示意图；
图21是本申请实施例提供的一种像素结构的结构示意图；
图22是本申请实施例提供的一种显示面板的结构示意图；
图23是本申请实施例提供的一种显示装置的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。
相关技术中，液晶显示面板中的像素电极一般包括多个条状电极，用于连 接多个条状电极的一端的第一连接电极，以及用于连接多个条状电极的另一端的第二连接电极。第一连接电极的延伸方向和第二连接电极的延伸方向均与多个条状电极的延伸方向相交。
但是，由于多个条状电极和连接电极连接处的电场较为紊乱，因此液晶显示面板受到外力挤压时，会使得液晶显示面板中位于多个条状电极和连接电极连接处的液晶的排列较为紊乱，液晶显示面板易存在划痕均一性(trace mura)的问题。
图1是相关技术中提供的一种像素电极的结构示意图。参考图1，像素电极10包括多个第一电极101，第二电极102以及第三电极103。该第二电极102与多个第一电极101的一端连接，且多个第一电极101的一端通过第二电极102连通。该第三电极103与多个第一电极101的另一端连接，且多个第一电极101的另一端通过第三电极103连通。其中，该第一电极101的两端均无拐角。
该像素电极10的中间区10a的电场由第一电极101决定。该像素电极10中靠近第二电极102的第一区域10b的电场由第二电极102和第一电极101共同决定。该像素电极10中靠近第三电极103的第二区域10c的电场由第三电极103和第一电极101共同决定。
该像素电极10的第一区域10b用于与显示面板中的像素电路连接，以使得像素电路为该像素电极提供驱动信号。若显示面板中公共电极位于该像素电极和像素电路之间，则该公共电极上可以具有通孔，以使得像素电极通过该通孔与像素电路连接。由于公共电极的通孔位于第一区域10b，因此会导致该第一区域10b无电场或电场较弱。显示面板中位于第一区域10b的液晶主要在位于像素电极10远离衬底基板的一侧的膜层的锚定力的作用下达到平衡。
由于像素电极10的中间区10a的电场由第一电极101决定，因此显示面板中位于该中间区10a的液晶可以在该电场和位于像素电极10远离衬底基板的一侧的膜层的锚定力的作用下达到平衡。
由于公共电极在第二区域10c处不具有通孔，因此第三电极103和第一电极101所在区域能够形成电场，显示面板中位于第二区域10c的液晶在第三电极103和第一电极101形成的电场，以及像素电极10远离衬底基板的一侧的膜层的锚定力的作用下达到平衡。
相同加载电压下，电场F越强，液晶转动的角度越大，像素电极10远离衬底基板的一侧的膜层的锚定力f越大；反之，电场F越弱，液晶转动的角度越小，像素电极10远离衬底基板的一侧的膜层的锚定力f越小。参考图2，液晶达到平衡状态时，电场F与锚定力f相等。
显示面板中位于像素电极10的中间区10a的液晶，以及位于第二区域10c的液晶会受到电场的影响而达到平衡，因此可以对这两个区域的液晶是否能够在电场作用下达到平衡进行分析。
参考图3，在显示面板受到外力挤压之前，像素电极10受到的电场F和锚定力f可以相等，液晶在该电场F和锚定力f的作用下处于平衡状态。在显示面板受到外力挤压时，显示面板中的液晶会在电场F，锚定力f，以及挤压力P的作用下转动。如图4所示，显示面板中位于像素电极10的中间区10a，第一区域10b，以及第二区域10c的液晶均会转动。
参考图3，由于像素电极10的中间区10a的电场较强，因此显示面板中位于该中间区10a的液晶可以在该电场的作用下重新达到平衡状态(恢复如初)。而由于像素电极10的第二区域10c的电场方向是基于不同延伸方向的第一电极101和第三电极103确定的，因此参考图5，该像素电极10的第二区域10c的电场方向会较为紊乱。由此参考图3，显示面板中位于该第二区域10c的液晶的排列较为紊乱(难以恢复)，进而导致显示面板的局部位置出现发暗的问题，即显示面板出现划痕均一性的问题。
本申请实施例提供了一种像素电极，可以解决相关技术中显示面板易存在划痕均一性的问题。参考图6，该像素电极20可以包括：多个条状的第一电极201，第二电极202，以及第三电极203。
该多个第一电极201可以沿第一方向X排布，且每个第一电极201可以沿第二方向Y延伸，该第二方向Y可以与第一方向X相交。示例的，该第一方向X可以为像素行方向，第二方向Y可以与像素行方向和像素列方向均相交。
该第二电极202可以与多个第一电极201的第一端连接，该多个第一电极201的第一端可以通过该第二电极202连通。也即是，每个第一电极201均可以与第二电极202连接。该第二电极202可以用于与显示面板中的像素电路连接，以使得像素电路能够通过该第二电极202为该像素电极提供驱动信号。
该第三电极203可以与至少一个第一电极201的第二端连接，且第三电极203所在区域的电场的方向与第一方向X和第二方向Y均相交。因此参考图7，第一电极201的第二端和第三电极203连接处的电场的方向可以较为规则。
由此参考图8，在显示面板受到外力挤压时，显示面板中位于像素电极20的第一电极201，第二电极202，以及第三电极203处的液晶均会转动。在挤压力释放后，除了显示面板中位于第一电极201以及第二电极202处的液晶规则排列之外，显示面板中位于第三电极203和第一电极201连接处的液晶可以在第三电极203与第一电极201形成的电场的作用下规则排列。由此能够避免显示面板出现划痕均一性的问题，显示面板的显示效果较好。
综上所述，本申请实施例提供了一种像素电极，该像素电极包括的第三电极与至少一个第一电极的另一端连接，且第三电极所在区域的电场的方向与第一方向和第二方向均相交。该第三电极和第一电极的第二端的连接处形成的电场的方向较为规则，可以使得显示面板中位于第三电极和第一电极连接处的液晶在该电场的作用下规则排列，避免显示面板出现划痕均一性的问题，显示面板的显示效果较好。
可选的，参考图6，该多个第一电极201呈直线型，因此显示面板的液晶在该多个第一电极201的各个区域的取向相同，显示面板不会存在暗区，显示面板的光效较高。
作为一种可选的实现方式，第三电极203可以沿第一方向X延伸，且第三电极203可以与至少一个第一电极201的第二端连接，该第三电极203的第一端和第二端中的至少一端相对于多个第一电极201的第二端向远离多个第一电极201的方向凸出。
由于第三电极203的第一端和第二端中至少一端相对于多个第一电极的第二端向远离多个第一电极201的方向凸出，因此第一电极201的第二端和第三电极203凸出的一端之间的连线方向，与第一电极201的延伸方向之间的夹角可以较小。第一电极201的第二端和第三电极203连接处的电场的方向可以较为规则。
在本申请实施例中，该第三电极203的第一端可以与至少一个第一电极201的第二端连接，该第三电极203的第二端可以相对于多个第一电极201的第二端向远离多个第一电极201的方向凸出。
参考图6可以看出，该第三电极203的第一端可以与每个第一电极201的第二端连接。或者，参考图9，该第三电极203的第一端可以与多个第一电极201中的第一目标电极201a的第二端连接，该多个第一电极201中除第一目标电极201a之外的其他第一电极201均位于第一目标电极201a的一侧。也即是，该第一目标电极201a为多个第一电极201中位于边缘的第一电极201。
示例的，在图9中，第一目标电极201a为多个第一电极201中最右侧的第一电极。当然，该第一目标电极201a也可以为多个第一电极201a中最左侧的第一电极。
对于上述图6和图9中的像素电极20，像素电极20包括的第三电极203凸出的一端与多个第一电极201的第二端的连线方向为同一方向，因此参考图7和图10，该第三电极203和多个第一电极201的第二端形成的电场的方向也为同一方向。
参考图8和图11，在显示面板受到外力挤压时，显示面板中位于像素电极20的第一电极201，第二电极202，以及第三电极203处的液晶均会转动。在挤压力释放后，显示面板中位于第三电极203和第一电极201连接处的液晶可以在第三电极203与第一电极201的第二端形成的电场的作用下转动。由于该第三电极203和多个第一电极201的第二端形成的电场的方向为同一方向，因此显示面板中位于第三电极203和第一电极201连接处的液晶可以在该电场的作用下沿同一方向排列，显示面板的显示效果可以较好。
在本申请实施例中，显示面板中位于第三电极203和第一电极201连接处的液晶的排列方向的数量，可以与第三电极203和多个第一电极201的第二端形成的电场的方向的数量正相关。并且，显示面板中位于第三电极203和第一电极201连接处的液晶的排列方向的数量越少，说明液晶的排列越规则。也即是，第三电极203和多个第一电极201的第二端形成的电场的方向的数量越少，显示面板中位于第三电极203和第一电极201连接处的液晶的排列可以越规则，显示面板的显示效果越好。
图12是本申请实施例提供的再一种像素电极的结构示意图。参考图12可以看出，该第三电极203可以包括：第一子电极2031a和第二子电极2032a。该第一子电极2031a的第一端可以与多个第一电极201中的第一目标电极201a的第二端连接，该第一子电极2031a的第二端相对于第一目标电极201a的第二端 向远离多个第一电极201的方向凸出。该第二子电极2032a的第一端可以与多个第一电极201中的第二目标电极201b的第二端连接，该第二子电极2032a的第二端相对于第二目标电极201b的第二端向远离多个第一电极201的方向凸出。
其中，多个第一电极201中除第一目标电极201a之外的其他第一电极，可以均位于第一目标电极201a的一侧。多个第一电极201中除第二目标电极201b之外的其他第一电极可以均位于第二目标电极201b的一侧。也即是，该第一目标电极201a和该第二目标电极201b可以分别为多个第一电极201中位于两个边缘的第一电极201。示例的，参考图12，该第一目标电极201a为多个第一电极201中最右侧的第一电极，第二目标电极201b为多个第一电极201中最左侧的第一电极。
对于图12所示的像素电极20，由于第一子电极2031a与第一目标电极201a的第二端之间的连线方向，与第二子电极2032a和第二目标电极201b的第二端之间的连线方向不同，因此该第一子电极2031a与第一目标电极201a的第二端形成的电场的方向，与第二子电极2032a和第二目标电极201b的第二端形成的电场的方向不同。由此显示面板中位于第一子电极2031a与第一目标电极201a的第二端的连接处的液晶的排列方向，可以与显示面板中位于第二子电极2032a和第二目标电极201b的第二端的连接处的液晶的排列方向不同。
但由于第三电极203和多个第一电极201的第二端形成的电场的方向的数量较少，因此在挤压力释放后，显示面板中位于第三电极203和第一电极201连接处的液晶较为规则的排列，显示面板的显示效果可以较好。
图13是本申请实施例提供的再一种像素电极的结构示意图。参考图13可以看出，该第三电极203可以与每个第一电极201的第二端均连接，且第三电极203的第一端和第二端均相对于多个第一电极201的第二端向远离多个第一电极201的方向凸出。
由于第三电极203凸出的两端和多个第一电极201的第二端之间的连线方向不同，因此第三电极203凸出的两端和多个第一电极201的第二端形成的电场的方向不同。对于图13所示的像素电极20，第三电极203和多个第一电极201的第二端形成的电场的方向的数量也较少，显示面板的显示效果可以较好。
并且，由于第三电极203凸出的两端和多个第一电极201的第二端形成的 电场的方向不同，因此显示面板中位于第三电极203的两端处的液晶的排列方向不同。
参考图6，图9，图12以及图13，第三电极203凸出的一端的形状可以为梯形或三角形。该第三电极203凸出的一端远离多个第一电极201的一侧的宽度d1，可以小于第三电极203凸出的一端靠近多个第一电极201的一侧的宽度d2。当然，该第三电极203凸出的一端的形状还可以为其他形状，本申请实施例对此不做限定。
在本申请实施例中，参考图6，第三电极203与多个第一电极201的第二端形成的电场是由第三电极203凸出的一端与多个第一电极201之间的距离d3，与第三电极凸出的一端靠近多个第一电极201的一侧的宽度d2共同决定的。并且，第三电极203凸出的一端与多个第一电极201之间的距离d3，与第三电极凸出的一端靠近多个第一电极201的一侧的宽度d2具有相关性。
可选的，在第三电极203凸出的一端靠近多个第一电极201的一侧的宽度d2小于或等于2.5μm，且第三电极203凸出的一端与多个第一电极201之间的距离d3大于或等于1.2μm的情况下，显示面板不存在划痕均一性的问题。在第三电极凸出的一端靠近多个第一电极201的一侧的宽度d2大于2.5μm且小于或等于3.5μm，且第三电极203凸出的一端与多个第一电极201之间的距离d3大于或等于1.87μm的情况下，显示面板不存在划痕均一性的问题。在第三电极凸出的一端靠近多个第一电极201的一侧的宽度d2大于3.5μm且小于或等于4.5μm，且第三电极203凸出的一端与多个第一电极201之间的距离d3大于或等于3.3μm的情况下，显示面板不存在划痕均一性的问题。
也即是，为了避免显示面板存在划痕均一性的问题，需满足如下条件：d2≤2.5μm，且d3≥1.2μm。或者，2.5μm＜d2≤3.5μm，且d3≥1.87μm。又或者，3.5μm＜d2≤4.5μm，且d3≥3.3μm。
作为另一种可选的实现方式，参考图14，第三电极203的延伸方向可以与第一方向X和第二方向Y均相交，该第三电极203的第一端可以与一个第一电极201的第二端连接，且第三电极203的第一端和另一端之间可以具有至多一个弯折部203a。
由于第三电极203的第一端和第二端之间具有至多一个弯折部203a，因此第三电极203位于弯折部203a的两侧的部分与第一电极201的延伸方向之间的 夹角可以均较小。参考图15，第一电极201的第二端和第三电极203连接处的电场的方向可以较为规则。由此参考图16，在显示面板受到外力挤压时，显示面板中位于像素电极20的第一电极201，第二电极202，以及第三电极203处的液晶均会转动。在挤压力释放后，除了显示面板中位于第一电极201以及第二电极202处的液晶规则排列之外，显示面板中位于第三电极203和第一电极201连接处的液晶可以在第三电极203与第一电极201的共同作用下规则排列，避免显示面板出现划痕均一性的问题，显示面板的显示效果较好。
可选的，参考图16，在挤压力释放后，由于第三电极203具有弯折部203a，因此液晶在该弯折部203a的两侧的排列方向不同，而位于弯折部203a的同一侧的液晶的排列方向相同。也即是，位于弯折部203a的同一侧的液晶规则排列。该第三电极203具有至多一个弯折部203a，可以使得位于第三电极203和第一电极201连接处的液晶至多存在两个排列方向，避免显示面板出现划痕均一性的问题，显示面板的显示效果较好。
参考图14，该第三电极203的第一端和弯折部203a之间的第一部分203b，以及第三电极203的第二端和弯折部203a之间的第二部分203c可以均为条状结构，该第一部分203b的延伸方向和第二部分203c的延伸方向相交。其中，参考图14，像素电极20可以呈铅笔状。
参考图14还可以看出，该第三电极203可以包括：条状的第三子电极2031b和条状的第四子电极2032b，该第三子电极2031b的延伸方向可以和第四子电极2032b的延伸方向相交。
该第三子电极2031b的一端可以与一个第一电极201的第二端连接。第三子电极2031b的另一端可以与第四子电极2032b的一端连接，且第三子电极2031b的另一端与第四子电极2032b的一端构成弯折部203a。该第四子电极2032b的另一端可以与另一个第一电极201的第二端连接。其中，第三子电极2031b的一端即为第三电极203的第一端，第四子电极2032b的另一端即为第三电极203的第二端。
或者，图17是本申请实施例提供的再一种像素电极的结构示意图。参考图17可以看出，该弯折部203a可以呈弧形。例如，该第三电极203可以为弧形的电极。
参考图14和图17，该第三电极203的第一端可以与一个第一电极201的第 二端连接，该第三电极203的第二端可以与另一个第一电极201的第二端连接。也即是，该第三电极203的两端分别连接有一个第一电极201。
图18是图17所示的像素电极的电场的示意图。参考图18可以看出，图17所示的像素电极中第一电极201的第二端和第三电极203连接处的电场较为规则。由此参考图19，在显示面板受到外力挤压时，显示面板中位于像素电极20的第一电极201，第二电极202，以及第三电极203处的液晶均会转动。在挤压力释放后，除了显示面板中位于第一电极201以及第二电极202处的液晶规则排列之外，显示面板中位于第三电极203和第一电极201连接处的液晶可以在第三电极203与第一电极201的共同作用下规则排列，避免显示面板出现划痕均一性的问题，显示面板的显示效果较好。
在本申请实施例中，像素电极20包括的第一电极201的数量可以大于或等于3，则多个第一电极201中除与第三电极203的第一端和第二端连接的两个第一电极201之外的其他第一电极，可以均位于两个第一电极201之间。也即是，第三电极203的第一端和另一端连接的两个第一电极201可以分别为多个第一电极201中位于边缘的两个第一电极201。
若像素电极包括的第一电极201的数量等于3，则多个第一电极201可以包括一个其他第一电极。若像素电极20包括的第一电极201的数量大于3，则多个第一电极201可以包括多个其他第一电极。
图20是本申请实施例提供的再一种像素电极的结构示意图。参考图20可以看出，至少一个其他第一电极201c的另一端可以与第三电极203的中部连接，该第三电极203的中部可以位于第三电极203的第一端和另一端之间。其中，该其他第一电极201c的长度相对于第三电极203的第一端和第二端连接的第一电极201的长度长。
综上所述，本申请实施例提供了一种像素电极，该像素电极包括的第三电极与至少一个第一电极的另一端连接，且第三电极所在区域的电场的方向与第一方向和第二方向均相交。该第三电极和第一电极的第二端的连接处形成的电场的方向较为规则，可以使得显示面板中位于第三电极和第一电极连接处的液晶在该电场的作用下规则排列，避免显示面板出现划痕均一性的问题，显示面板的显示效果较好。
图21是本申请实施例提供的一种像素结构的结构示意图。参考图21可以看出，该像素结构001可以包括：公共电极30，液晶层40，以及如上述实施例提供的像素电极20。该公共电极30和像素电极20可以用于驱动液晶层40中的液晶偏转。
图22是本申请实施例提供的一种显示面板的结构示意图。该显示面板00可以包括：衬底基板002，以及设置在衬底基板002上的多个如上述实施例提供的像素结构001。
参考图22还可以看出，该显示面板00还可以包括：像素电路003以及钝化层004。该像素电路003，像素结构001中的公共电极30，钝化层004，以及像素结构003中的像素电极20，像素结构003中的液晶层40可以沿远离衬底基板002的一侧层叠。
该公共电极30上可以具有第一过孔，该钝化层004上可以具有与第一过孔连通的第二过孔，该像素电极20中的第二电极202可以通过第一过孔和第二过孔与像素电路003连接。
该像素电路003可以包括：晶体管。该晶体管的栅极可以与栅线连接，该晶体管的源极可以与数据线连接，该晶体管的漏极可以与像素电极20连接。例如，该晶体管的漏极可以与像素电极20中的第二电极202连接。
参考图22，该显示面板00还可以包括：彩膜基板005。该彩膜基板005可以位于像素结构001远离衬底基板002的一侧。该彩膜基板003可以用于将光线转变为具有颜色的光。
图23是本申请实施例提供的一种显示装置的结构示意图。参考图23可以看出，该显示装置可以包括：驱动电路01以及上述实施例所述的显示面板00。该驱动电路01可以用于为显示面板00中的像素结构001提供驱动信号。
其中，参考图23，该驱动电路01可以包括：栅极驱动电路011和源极驱动电路012。该栅极驱动电路011可以通过栅线与显示面板00中的各行像素结构001连接，用于为各行像素结构001提供栅极驱动信号。源极驱动电路012可以通过数据线与显示面板00中的各列像素结构001连接，用于为各列像素结构001提供数据信号。
可选的，该显示装置可以为液晶显示装置、电子纸、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框或导航仪等任何具有显示功能的产品或部件。
以上所述仅为本申请的可选实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (18)

  1. 一种像素电极，其特征在于，所述像素电极包括：
    多个条状的第一电极，多个所述第一电极沿第一方向排布，且每个所述第一电极均沿第二方向延伸，所述第二方向与所述第一方向相交；
    第二电极，所述第二电极与多个所述第一电极的第一端连接，多个所述第一电极的第一端通过所述第二电极连通；
    以及第三电极，所述第三电极与至少一个所述第一电极的第二端连接，且所述第三电极所在区域的电场的方向与所述第一方向和所述第二方向均相交。
  2. 根据权利要求1所述的像素电极，其特征在于，所述第三电极的延伸方向平行于所述第一方向，所述第三电极的第一端和第二端中的至少一端相对于多个所述第一电极的第二端向远离多个所述第一电极的方向凸出。
  3. 根据权利要求2所述的像素电极，其特征在于，所述第三电极的第一端与至少一个所述第一电极的第二端连接，所述第三电极的第二端相对于多个所述第一电极的第二端向远离多个所述第一电极的方向凸出。
  4. 根据权利要求3所述的像素电极，其特征在于，所述第三电极的第一端与多个所述第一电极中的第一目标电极的第二端连接；
    多个所述第一电极中除所述第一目标电极之外的其他第一电极均位于所述第一目标电极的一侧。
  5. 根据权利要求3所述的像素电极，其特征在于，所述第三电极的第一端与每个所述第一电极的第二端均连接。
  6. 根据权利要求2所述的像素电极，其特征在于，所述第三电极包括：第一子电极和第二子电极；
    所述第一子电极的第一端与多个所述第一电极中的第一目标电极的第二端连接，所述第一子电极的第二端相对于所述第一目标电极的第二端向远离多个所述第一电极的方向凸出；
    所述第二子电极的第一端与多个所述第一电极中的第二目标电极的第二端连接，所述第一子电极的第二端相对于所述第二目标电极的第二端向远离多个所述第一电极的方向凸出；
    多个所述第一电极中除所述第一目标电极之外的其他第一电极，均位于所述第一目标电极的一侧，且多个所述第一电极中除所述第二目标电极之外的其他第一电极均位于所述第二目标电极的一侧。
  7. 根据权利要求1所述的像素电极，其特征在于，所述第三电极与每个所述第一电极的第二端均连接，且所述第三电极的第一端和第二端均相对于多个所述第一电极的第二端向远离多个所述第一电极的方向凸出。
  8. 根据权利要求2至7任一所述的像素电极，其特征在于，所述第三电极凸出的一端的形状为梯形或三角形；
    其中，所述第三电极凸出的一端远离所述多个第一电极的一侧的宽度，小于所述第三电极凸出的一端靠近所述多个第一电极的一侧的宽度。
  9. 根据权利要求1所述的像素电极，其特征在于，所述第三电极的延伸方向与所述第一方向和所述第二方向均相交，所述第三电极的第一端与一个所述第一电极的第二端连接，且所述第三电极的第一端和第二端之间具有至多一个弯折部。
  10. 根据权利要求9所述的像素电极，其特征在于，所述第三电极的第一端和所述弯折部之间的第一部分，以及所述第三电极的第二端和所述弯折部之间的第二部分均为条状结构，所述第一部分的延伸方向和所述第二部分的延伸方向相交；
    或者，所述弯折部呈弧形。
  11. 根据权利要求10所述的像素电极，其特征在于，所述第三电极的第一端与一个所述第一电极的第二端连接，所述第三电极的第二端与另一个所述第一电极的第二端连接。
  12. 根据权利要求10或11所述的像素电极，其特征在于，所述第三电极包括：条状的第三子电极和条状的第四子电极，所述第三子电极的延伸方向和所述第四子电极的延伸方向相交；
    所述第三子电极的第一端与一个所述第一电极的第二端连接，所述第三子电极的第二端与所述第四子电极的第一端连接，且所述第三子电极的第二端与所述第四子电极的第一端构成所述弯折部，所述第四子电极的第二端与另一个所述第一电极的第二端连接。
  13. 根据权利要求11或12所述的像素电极，其特征在于，所述像素电极包括的所述第一电极的数量大于或等于3；
    多个所述第一电极中除与所述第三电极的第一端和第二端连接的两个第一电极之外的其他第一电极，均位于所述两个第一电极之间。
  14. 根据权利要求13所述的像素电极，其特征在于，至少一个所述其他第一电极的第二端与所述第三电极的中部连接，所述第三电极的中部位于所述第三电极的第一端和第二端之间。
  15. 一种像素结构，其特征在于，所述像素结构包括：公共电极，液晶层，以及如权利要求1至14任一所述的像素电极；
    所述公共电极和所述像素电极用于驱动所述液晶层中的液晶偏转。
  16. 一种显示面板，其特征在于，所述显示面板包括：衬底基板，以及设置在所述衬底基板上的多个如权利要求15所述的像素结构。
  17. 根据权利要求16所述的显示面板，其特征在于，所述显示面板还包括：像素电路以及钝化层；
    所述像素电路，所述像素结构中的公共电极，所述钝化层，以及所述像素结构中的像素电极沿远离所述衬底基板的一侧依次层叠；
    所述公共电极上具有第一过孔，所述钝化层上具有与所述第一过孔连通的 第二过孔，所述像素电极中的第二电极通过所述第一过孔和所述第二过孔与所述像素电路连接。
  18. 一种显示装置，其特征在于，所述显示装置包括：驱动电路以及如权利要求16或17所述的显示面板；
    所述驱动电路用于为所述显示面板中的像素结构提供驱动信号。
PCT/CN2020/135623 2020-12-11 2020-12-11 像素电极、像素结构、显示面板及显示装置 WO2022120783A1 (zh)

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