WO2021168921A1 - 显示面板 - Google Patents

显示面板 Download PDF

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Publication number
WO2021168921A1
WO2021168921A1 PCT/CN2020/079446 CN2020079446W WO2021168921A1 WO 2021168921 A1 WO2021168921 A1 WO 2021168921A1 CN 2020079446 W CN2020079446 W CN 2020079446W WO 2021168921 A1 WO2021168921 A1 WO 2021168921A1
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WO
WIPO (PCT)
Prior art keywords
display panel
electrode
data line
common electrode
area
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Application number
PCT/CN2020/079446
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English (en)
French (fr)
Inventor
曹武
Original Assignee
深圳市华星光电半导体显示技术有限公司
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Application filed by 深圳市华星光电半导体显示技术有限公司 filed Critical 深圳市华星光电半导体显示技术有限公司
Priority to US16/650,394 priority Critical patent/US11048130B1/en
Publication of WO2021168921A1 publication Critical patent/WO2021168921A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix

Definitions

  • the present application relates to the technical field of display panels, and in particular to a display panel.
  • Liquid Crystal Display has many advantages such as thin body, power saving, and no radiation, and has been widely used, and it has a dominant position in the field of flat panel displays.
  • the working principle of the liquid crystal display panel is to inject liquid crystal molecules between the Thin Film Transistor (TFT) array substrate and the Color Filter (CF) substrate, and apply driving voltage on the two substrates to control the liquid crystal
  • TFT Thin Film Transistor
  • CF Color Filter
  • HVA alignment HVA curing
  • a high-voltage waveform signal is applied to the electrode, and the pixel electrode is grounded to make the liquid crystal deflect at a predetermined angle, and then irradiate with ultraviolet (UV) light to make the liquid crystal form a fixed pretilt angle.
  • UV ultraviolet
  • the present application provides a display panel, which can improve the convergence of the liquid crystal alignment dark lines in the gap area, reduce the dark line width of the DBS common electrode boundary, and thereby increase the transmittance of the display panel.
  • the present application provides a display panel including a data line routing area and a pixel area that are adjacently arranged; the data line routing area is provided with a data line and a DBS common electrode on the data line; The pixel area is provided with a pixel electrode arranged in the same layer as the DBS common electrode; a gap area is formed between the DBS common electrode and the pixel electrode;
  • At least one of the side of the DBS common electrode close to the gap area and the side of the pixel electrode close to the gap area includes a gradual convex structure facing the gap area.
  • the data line extends along a first direction; a side of the pixel electrode close to the gap area is parallel to the first direction, and the DBS common electrode is close to the gap
  • One side of the zone includes the raised structure.
  • the data line extends along a first direction; the side of the DBS common electrode close to the gap area is parallel to the first direction, and the pixel electrode is close to the gap
  • One side of the zone includes the raised structure.
  • the length of the protruding structure in the first direction gradually decreases in the direction toward the gap area.
  • the projection of the raised structure in the direction perpendicular to the display panel is a right triangle, and the side of the raised structure close to the gap area is perpendicular to the display panel.
  • the projection in the direction is the hypotenuse of the right triangle.
  • the angle between the oblique side and the first direction is greater than 0° and less than or equal to 4°.
  • the projection of the raised structure in the direction perpendicular to the display panel is an obtuse triangle, and the side of the raised structure close to the gap area is perpendicular to the display panel.
  • the projection in the direction includes a first side and a second side that are adjacent to each other, and the first side and the second side are respectively two short sides of the obtuse triangle.
  • angles between the first side and the second side and the first direction are all greater than 0° and less than or equal to 4°.
  • the length of the first side and the second side are the same.
  • the protruding structure is in a zigzag shape.
  • the protruding structure includes a plurality of saw-tooth units sequentially adjacent in the first direction; the projection of each of the saw-tooth units in a direction perpendicular to the display panel includes phase Adjacent third and fourth sides; the angles between the third and fourth sides and the first direction are both greater than 0° and less than or equal to 4°.
  • the length of the third side and the fourth side are the same.
  • the data line extends along a first direction;
  • the pixel electrode includes a first main electrode disposed close to the DBS common electrode, and one end is electrically connected to the first main electrode and A second stem electrode extending along the second direction at the other end; the first direction and the second direction are perpendicular to each other, and the first stem electrode is symmetrically arranged with respect to the second stem electrode;
  • At least one of the side of the DBS common electrode close to the gap region and the side of the first main electrode close to the gap region includes the convex structure; the convex structure is symmetrical with respect to the second main electrode set up.
  • the pixel electrode further includes a plurality of branch electrodes connecting the first main electrode and the second main electrode.
  • the display panel further includes a color filter, and the color filter is located between the data line and the DBS common electrode.
  • the display panel further includes a scan line wiring area intersecting the data line wiring area; the scan line wiring area is provided with an intersecting and insulating data line Set scan lines, and thin film transistors located on the scan lines; the thin film transistors are electrically connected to the scan lines, the data lines, and the pixel electrodes, respectively; the thin film transistors, the scan lines, and the pixel electrodes
  • the data line, the color filter, the DBS common electrode and the pixel electrode constitute an array substrate.
  • the display panel further includes a counter substrate disposed opposite to the array substrate, and a liquid crystal layer disposed between the array substrate and the counter substrate.
  • the liquid crystal molecules in the liquid crystal layer corresponding to the gap area tend to have an azimuthal pretilt of 90°.
  • the pixel structure of the display panel includes any one of a 4-domain pixel structure and an 8-domain pixel structure.
  • the present application also provides a display panel including a data line routing area and a pixel area that are adjacently arranged; the data line routing area is provided with a data line and a DBS common electrode on the data line The pixel area is provided with a pixel electrode arranged in the same layer as the DBS common electrode; a gap area is formed between the DBS common electrode and the pixel electrode;
  • the data line extends in a first direction; a side of the pixel electrode close to the gap area is parallel to the first direction, and a side of the DBS common electrode close to the gap area includes a side facing the gap area And presents a gradual convex structure; the length of the convex structure in the first direction gradually decreases in the direction toward the gap area.
  • At least one of the side of the DBS common electrode close to the gap area and the side of the pixel electrode close to the gap area includes a gradual convex structure facing the gap area.
  • the side where the DBS common electrode and the pixel electrode are close to each other is a non-flat structure in the gap area, that is, the side of the DBS common electrode close to the gap area and the side of the pixel electrode close to the gap area form at least one similar angle in the gap area.
  • the liquid crystal molecules corresponding to the gap area will tend to pre-tilt at 90° azimuth angle, which can improve the darkness of the liquid crystal alignment in the gap area.
  • the convergence of the pattern reduces the width of the dark pattern at the boundary of the DBS common electrode, thereby increasing the transmittance of the display panel.
  • FIG. 1 is a schematic diagram of exemplary liquid crystal molecules in different azimuth angles.
  • FIG. 2 is a schematic diagram of a partial cross-sectional structure of a display panel provided by an embodiment of the application.
  • FIG. 3 is a schematic diagram of the structure of the DBS common electrode and the pixel electrode of a display panel provided by an embodiment of the application.
  • FIG. 4 is a schematic diagram of the structure of the DBS common electrode and the pixel electrode of another display panel provided by an embodiment of the application.
  • FIG. 5 is a schematic diagram of the structure of the DBS common electrode and the pixel electrode of another display panel provided by an embodiment of the application.
  • FIG. 6 is a schematic diagram of the structure of the DBS common electrode and the pixel electrode of another display panel provided by an embodiment of the application.
  • FIG. 7 is a schematic diagram of the structure of the DBS common electrode and the pixel electrode of another display panel provided by an embodiment of the application.
  • FIG. 8 is a schematic diagram of the structure of the DBS common electrode and the pixel electrode of another display panel provided by an embodiment of the application.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present application, “multiple” means two or more than two, unless otherwise specifically defined.
  • connection should be understood in a broad sense, unless otherwise clearly specified and limited.
  • it can be a fixed connection or a detachable connection.
  • Connected or integrally connected it can be mechanically connected, or electrically connected or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two components or the interaction of two components relation.
  • an intermediate medium it can be the internal communication of two components or the interaction of two components relation.
  • the "on" or “under” of the first feature of the second feature may include direct contact between the first and second features, or may include the first and second features Not in direct contact but through other features between them.
  • the "above”, “above” and “above” of the first feature on the second feature include the first feature directly above and obliquely above the second feature, or it simply means that the first feature is higher in level than the second feature.
  • the “below”, “below” and “below” of the second feature of the first feature include the first feature directly below and obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.
  • the HVA alignment process is an extremely critical step. This process directly affects the optical taste, manufacturing process, or drive adjustable margin of the display panel; generally, through the CF common electrode (or arranged opposite to the array substrate) Apply a high-voltage waveform signal to the common electrode on the opposite substrate) and the DBS common electrode, and ground the pixel electrode to form an electric field in a predetermined direction between the upper and lower plate electrodes, so that the liquid crystal molecules are oriented and irradiated with UV ultraviolet light.
  • the azimuth angle of the liquid crystal molecules can be understood as the angle between the projection of the long axis of the liquid crystal molecules in the direction perpendicular to the display panel and the direction perpendicular to the data line.
  • the azimuth angle of the liquid crystal molecules is 0°
  • the long axis projection of the liquid crystal molecules is perpendicular to the extension direction of the DBS common electrode (or data line)
  • the azimuth angle of the liquid crystal molecules is 90°
  • the The long axis projection of is parallel to the extension direction of the DBS common electrode.
  • Table 1 shows the transmittance Tr of the gap area under different pretilt angles ⁇ and different gap area azimuth angles ⁇ obtained through simulation. From Table 1, it can be seen that the pretilt angle ⁇ of liquid crystal molecules is 0.7°, 0.9° or 1.2 When the azimuth angle ⁇ of the liquid crystal molecules in the gap area is 0°, the transmittance Tr is the smallest, and as the azimuth angle ⁇ increases from 0° to 90°, the transmittance Tr gradually increases, and the azimuth angle ⁇ is 90° When the penetration rate Tr is the largest. Therefore, the transmittance of the gap area can be improved by adjusting the azimuth angle of the liquid crystal molecules corresponding to the gap area, thereby reducing the dark stripes on both sides of the DBS common electrode.
  • an embodiment of the present application provides a display panel 1.
  • the display panel 1 includes a plurality of data line wiring areas 2 and a plurality of pixel areas 3, wherein any two adjacent pixel areas There is a data line routing area 2 between 3 and a pixel area 3 between any two adjacent data line routing areas 2; for any adjacent data line routing area 2 and pixel area 3.
  • the data line routing area 2 is provided with a data line 4 and a DBS common electrode 5 on the data line 4, and the pixel area 3 is provided with a pixel electrode 6 arranged on the same layer as the DBS common electrode 5, and the DBS common electrode 5 and the pixel A gap region 7 is formed between the electrodes 6, and at least one of the side of the DBS common electrode 5 close to the gap region 7 and the side of the pixel electrode 6 close to the gap region 7 includes a gradual convex structure 8 facing the gap region 7 .
  • the embodiment of the present application only takes one data line wiring area 2 and a pixel area 3 adjacent to the data line wiring area 2 as an example; it is understandable that any data line wiring area
  • the DBS common electrode 5 of 2 and the pixel electrode 6 adjacent to the DBS common electrode 5 are both within the protection scope of the present application.
  • the embodiment of the present application only describes one side of the DBS common electrode 5 and the adjacent pixel electrode 6.
  • the convex structure 8 can be arranged on both sides of the DBS common electrode 5 or the pixel electrode 6.
  • the data line 4 extends along the first direction (the first direction in this embodiment is the vertical direction); as shown in FIG. 3, the side of the pixel electrode 6 close to the gap region 7 is parallel to the first direction, and the DBS is common
  • the side of the electrode 5 close to the gap region 7 includes a convex structure 8; or, as shown in FIG. 4, the side of the DBS common electrode 5 close to the gap region 7 is parallel to the first direction, and the pixel electrode 6 is close to a side of the gap region 7
  • the side includes raised structures 8.
  • both the side of the pixel electrode 6 close to the gap region 7 and the side of the DBS common electrode 5 close to the gap region 7 may include the convex structure 8; or, the pixel electrode 6 is divided into adjacent first in the first direction. Section and the second section, the side of the first section of the pixel electrode 6 close to the gap region 7 includes the convex structure 8, and the side of the second section of the pixel electrode 6 close to the gap region 7 is parallel to the first direction, corresponding to The side of the DBS common electrode 5 corresponding to the first segment of the pixel electrode 6 close to the gap region 7 is parallel to the first direction, and the side of the DBS common electrode 5 corresponding to the second segment of the pixel electrode 6 close to the gap region 7 includes protrusions. Structure 8. In all the above cases, the side of the pixel electrode 6 close to the gap region 7 and the side of the DBS common electrode 5 close to the gap region 7 can be a non-flat structure.
  • the flat type here means that the side of the pixel electrode 6 close to the gap region 7 and the side of the DBS common electrode 5 close to the gap region 7 are both parallel to the first direction, that is, the pixel electrode 6 is close to the gap.
  • the side of the region 7 and the side of the DBS common electrode 5 close to the gap region 7 are parallel to each other.
  • the length of the protruding structure 8 in the first direction gradually decreases in the direction toward the gap region 7.
  • the projection of the raised structure 8 in the direction perpendicular to the display panel 1 is a right-angled triangle
  • the projection of the side of the raised structure 8 close to the gap area 7 in the direction perpendicular to the display panel 1 is the hypotenuse 9 of the right-angled triangle.
  • the angle between the hypotenuse 9 and the first direction is greater than 0° and less than or equal to 4°.
  • the display panel 1 further includes a color filter 10, and the color filter 10 is located between the data line 4 and the DBS common electrode 5. That is to say, the display panel 1 provided in this embodiment is a COA (Color Filter On Array, The color filter 10 is on the array side) type display panel; of course, the embodiment of the present application is not limited to the COA type liquid crystal display panel.
  • COA Color Filter On Array
  • the display panel 1 further includes a scan line routing area intersecting with the data line routing area 2; the scan line routing area is provided with a scanning line that intersects the data line 4 and is provided with insulation, and a thin film on the scan line Transistors; thin film transistors are electrically connected to the scan line, the data line 4 and the pixel electrode 6 respectively.
  • Thin film transistors, scan lines, data lines 4, color filters 10, DBS common electrodes 5 and pixel electrodes 6 are all composed of an array substrate 19.
  • the display panel 1 also includes a counter substrate 20 disposed opposite to the array substrate 19.
  • the counter substrate 20 includes a base substrate 21 and a common electrode 22 located on the side of the base substrate 21 close to the liquid crystal layer 23; in the HVA alignment process, A high voltage waveform signal is applied to the common electrode 22 on the side of the counter substrate 20 and the DBS common electrode 5 on the side of the array substrate 19, and the pixel electrode 6 is grounded, so that an electric field in a predetermined direction is formed between the array substrate 19 and the counter substrate 20, As a result, the liquid crystal molecules 24 of the liquid crystal layer 23 are inverted in orientation.
  • the pixel electrode 6 includes a first trunk electrode 11 disposed close to the DBS common electrode 5, and a second trunk electrode 12 whose one end is electrically connected to the first trunk electrode 11 and the other end extends in the second direction; The direction and the second direction are perpendicular to each other, and the first main electrode 11 is symmetrically arranged with respect to the second main electrode 12; One includes a raised structure 8.
  • the pixel electrode 6 also includes a plurality of branch electrodes 13 connecting the first main electrode 11 and the second main electrode 12.
  • the pixel structure of the display panel 1 may be a 4-domain pixel structure or an 8-domain pixel structure, but of course it is not limited to this.
  • At least one of the side of the DBS common electrode 5 close to the gap area 7 and the side of the pixel electrode 6 close to the gap area 7 includes a gradual convex structure 8 facing the gap area 7, so that the DBS common electrode 5 and the pixel electrode 6 are close to each other in the gap area 7 is a non-flat structure, that is, the side of the DBS common electrode 5 close to the gap area 7 and the side of the pixel electrode 6 close to the gap area 7 form a type in the gap area 7.
  • the angle structure (that is, the extension line of any section of the DBS common electrode 5 close to the gap area 7 intersects the extension line of the corresponding pixel electrode 6 side close to the gap area 7), because the liquid crystal molecules will face the angle The direction converges, so that when the liquid crystal layer in the display panel 1 adopts the HVA alignment, the liquid crystal molecules corresponding to the gap area 7 tend to pretilt at 90° azimuth angle, which can improve the convergence of the liquid crystal alignment dark lines in the gap area 7 and reduce the DBS
  • the width of the dark stripes at the boundary of the common electrode 5 improves the transmittance of the display panel 1.
  • the liquid crystal molecules corresponding to the gap area 7 tend to pretilt at an azimuth angle of 90°, where the azimuth angle tends to be 90°, which can be that the azimuth angle of the liquid crystal molecules gradually increases from 0° to 90° It is also possible that the azimuth angles of the liquid crystal molecules are all close to 90° (including less than 90° and also include greater than 90°). Of course, the azimuth angles of the liquid crystal molecules can also be all 90°, which is not limited here.
  • an embodiment of the present application also provides a display panel 1.
  • the projection of the convex structure 8 in the direction perpendicular to the display panel 1 is an obtuse triangle.
  • the projection of the side of the structure 8 close to the gap area 7 in the direction perpendicular to the display panel 1 includes a first side 14 and a second side 15 adjacent to each other.
  • the first side 14 and the second side 15 are two obtuse triangles. Short side.
  • angles between the first side 14 and the second side 15 and the first direction are both greater than 0° and less than or equal to 4°.
  • the convex structure 8 is arranged symmetrically with respect to the second main electrode 12, that is, the lengths of the first side 14 and the second side 15 are the same, that is, the above-mentioned obtuse triangle is an isosceles triangle.
  • the side of the first main electrode 11 of the pixel electrode 6 close to the gap region 7 is parallel to the first direction, and the side of the DBS common electrode 5 close to the gap region 7 includes the convex structure 8; or As shown in FIG. 6, the side of the DBS common electrode 5 close to the gap region 7 is parallel to the first direction, and the side of the first main electrode 11 of the pixel electrode 6 close to the gap region 7 includes a convex structure 8.
  • At least one of the side of the DBS common electrode 5 close to the gap area 7 and the side of the pixel electrode 6 close to the gap area 7 includes a gradual convex structure 8 facing the gap area 7, so that the DBS common electrode 5 and the pixel electrode 6 are close to each other in the gap area 7 is a non-flat structure, that is, the side of the DBS common electrode 5 close to the gap area 7 and the side of the pixel electrode 6 close to the gap area 7 are formed in the gap area 7.
  • the liquid crystal molecules corresponding to the gap region 7 tend to pretilt at 90° azimuth angle, which can improve
  • the convergence of the dark stripes of the liquid crystal alignment in the gap region 7 reduces the dark stripes width at the boundary of the DBS common electrode 5, thereby increasing the transmittance of the display panel 1.
  • the side of the DBS common electrode 5 close to the gap area 7 and the side of the pixel electrode 6 close to the gap area 7 form two angle-like structures in the gap area 7, which is a symmetrical structure.
  • the liquid crystal molecules corresponding to the structure are pre-tilted in a variety of ways, which is beneficial to improve the color shift.
  • an embodiment of the present application also provides a display panel 1.
  • the difference from the foregoing embodiment is that the convex structure 8 is in a sawtooth shape.
  • the protruding structure 8 includes a plurality of sawtooth units 16 sequentially adjacent in the first direction; the projection of each sawtooth unit 16 in the direction perpendicular to the display panel 1 includes adjacent third sides 17 and fourth sides. 18; The angles between the third side 17 and the fourth side 18 and the first direction are both greater than 0° and less than or equal to 4°.
  • the zigzag convex structure 8 is arranged symmetrically with respect to the second main electrode 12; and the lengths of the third side 17 and the fourth side 18 are the same, that is, the projection of each zigzag unit 16 in the direction perpendicular to the display panel 1 is Isosceles triangle; of course, in an embodiment, the length of the third side 17 and the fourth side 18 can also be different, so that the angle between the third side 17 and the fourth side 18 and the first direction is greater than 0° It should be less than or equal to 4°.
  • the side of the first main electrode 11 of the pixel electrode 6 close to the gap area 7 is parallel to the first direction, and the side of the DBS common electrode 5 close to the gap area 7 includes a zigzag convex structure. 8; Or, as shown in FIG. 8, the side of the DBS common electrode 5 close to the gap region 7 is parallel to the first direction, and the side of the first main electrode 11 of the pixel electrode 6 close to the gap region 7 includes a saw-toothed protrusion Structure 8.
  • At least one of the side of the DBS common electrode 5 close to the gap area 7 and the side of the pixel electrode 6 close to the gap area 7 includes a gradual convex structure 8 facing the gap area 7, so that the DBS common electrode 5 and the pixel electrode 6 are close to each other in the gap area 7 is a non-flat structure, that is, the DBS common electrode 5 is close to the gap area 7 and the side of the pixel electrode 6 close to the gap area 7 is formed in the gap area 7.
  • the liquid crystal molecules corresponding to the gap region 7 tend to pretilt at 90° azimuth angle, which can improve The convergence of the dark stripes of the liquid crystal alignment in the gap region 7 reduces the dark stripes width at the boundary of the DBS common electrode 5, thereby increasing the transmittance of the display panel 1.

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

公开一种显示面板，包括相邻设置的数据线走线区和像素区；数据线走线区设有数据线和位于数据线上的DBS公共电极；像素区设有与DBS公共电极同层设置的像素电极；DBS公共电极和像素电极之间形成有间隙区；DBS公共电极靠近间隙区的一侧和像素电极靠近间隙区的一侧中的至少一个包括朝向间隙区且呈渐变式的凸起结构。

Description

显示面板 技术领域
本申请涉及显示面板技术领域，尤其涉及一种显示面板。
背景技术
液晶显示器(Liquid Crystal Display，LCD)具有机身薄、省电、无辐射等众多优点，得到了广泛的应用，在平板显示领域中占主导地位。液晶显示面板的工作原理是在薄膜晶体管(Thin Film Transistor，TFT)阵列基板与彩色滤光片(Color Filter，CF)基板之间灌入液晶分子，并在两片基板上施加驱动电压来控制液晶分子的旋转方向，以将背光模组的光线折射出来产生画面。
对于VA(Vertical Alignment)型的液晶显示面板，通常采用HVA配向(HVA curing)技术进行配向，该技术主要在液晶层中掺入可聚合单体，配向时向液晶层两侧施加电压(CF公共电极上施加高电压波形信号，像素电极接地)使液晶产生预定角度的偏转，随后进行紫外(UV)光照射使液晶形成固定的预倾角。
传统的液晶显示面板需要在彩膜基板一侧设置黑色矩阵(BM)以进行遮光，当应用于曲面液晶显示面板时，对面板进行弯曲会使BM的位置产生偏移(shift)而导致漏光及色偏，为解决这一问题，可以采用减少数据线上的黑色矩阵(Data BM less，DBS)的设计，也就是在阵列基板的数据线上方设置与像素电极同层的DBS电极，并使DBS电极与彩膜基板的CF公共电极之间保持无电压差状态，从而使DBS电极与CF公共电极之间的液晶不转动而呈现黑态，以替代黑色矩阵进行遮光。
对采用了HVA配向技术及DBS技术的液晶显示面板进行配向时，由于DBS电极与CF公共电极无压差，而像素电极接地，使得DBS电极与像素电极之间的压差较大，使得DBS电极与像素电极之间的间隙区对应的液晶垂直于DBS电极的方向预倾，即方位角趋向于0°，然而，当液晶分子的方位角为0°时，液晶效率较低，会加宽数据线两侧(即DBS公共电极两侧)的暗纹宽度，影响了液晶显示面板的穿透率。
技术问题
本申请提供一种显示面板，可以改善间隙区的液晶配向暗纹的收敛度，减小DBS公共电极边界的暗纹宽度，从而提高显示面板的穿透率。
技术解决方案
第一方面，本申请提供一种显示面板，包括相邻设置的数据线走线区和像素区；所述数据线走线区设有数据线和位于所述数据线上的DBS公共电极；所述像素区设有与所述DBS公共电极同层设置的像素电极；所述DBS公共电极和所述像素电极之间形成有间隙区；
所述DBS公共电极靠近所述间隙区的一侧和所述像素电极靠近所述间隙区的一侧中的至少一个包括朝向所述间隙区且呈渐变式的凸起结构。
在本申请所提供的显示面板中，所述数据线沿第一方向延伸；所述像素电极靠近所述间隙区的一侧与所述第一方向平行，且所述DBS公共电极靠近所述间隙区的一侧包括所述凸起结构。
在本申请所提供的显示面板中，所述数据线沿第一方向延伸；所述DBS公共电极靠近所述间隙区的一侧与所述第一方向平行，且所述像素电极靠近所述间隙区的一侧包括所述凸起结构。
在本申请所提供的显示面板中，所述凸起结构在所述第一方向上的长度在朝向所述间隙区的方向上呈渐变式减小。
在本申请所提供的显示面板中，所述凸起结构在垂直于所述显示面板方向上的投影为直角三角形，所述凸起结构靠近所述间隙区的一侧在垂直于所述显示面板方向上的投影为所述直角三角形的斜边。
在本申请所提供的显示面板中，所述斜边与所述第一方向之间的夹角大于0°且小于或等于4°。
在本申请所提供的显示面板中，所述凸起结构在垂直于所述显示面板方向上的投影为钝角三角形，所述凸起结构靠近所述间隙区的一侧在垂直于所述显示面板方向上的投影包括相邻接的第一边和第二边，所述第一边和所述第二边分别为所述钝角三角形的两个短边。
在本申请所提供的显示面板中，所述第一边和所述第二边与所述第一方向之间的夹角均大于0°且小于或等于4°。
在本申请所提供的显示面板中，所述第一边和所述第二边的长度相同。
在本申请所提供的显示面板中，所述凸起结构呈锯齿状。
在本申请所提供的显示面板中，所述凸起结构包括多个在所述第一方向上依次邻接的锯齿单元；每个所述锯齿单元在垂直于所述显示面板方向上的投影包括相邻接的第三边和第四边；所述第三边和所述第四边与所述第一方向之间的夹角均大于0°且小于或等于4°。
在本申请所提供的显示面板中，所述第三边和所述第四边的长度相同。
在本申请所提供的显示面板中，所述数据线沿第一方向延伸；所述像素电极包括靠近所述DBS公共电极设置的第一主干电极，以及一端与所述第一主干电极电连接且另一端沿第二方向延伸的第二主干电极；所述第一方向与所述第二方向相互垂直，且所述第一主干电极关于第二主干电极对称设置；
所述DBS公共电极靠近所述间隙区的一侧和所述第一主干电极靠近所述间隙区的一侧中的至少一个包括所述凸起结构；所述凸起结构关于第二主干电极对称设置。
在本申请所提供的显示面板中，所述像素电极还包括多个连接所述第一主干电极和所述第二主干电极的支部电极。
在本申请所提供的显示面板中，所述显示面板还包括彩色滤光片，所述彩色滤光片位于所述数据线和所述DBS公共电极之间。
在本申请所提供的显示面板中，所述显示面板还包括与所述数据线走线区相交设置的扫描线走线区；所述扫描线走线区设有与所述数据线相交且绝缘设置的扫描线，以及位于所述扫描线上的薄膜晶体管；所述薄膜晶体管分别与所述扫描线、所述数据线和所述像素电极电连接；所述薄膜晶体管、所述扫描线、所述数据线、所述彩色滤光片、所述DBS公共电极和所述像素电极构成阵列基板。
在本申请所提供的显示面板中，所述显示面板还包括与所述阵列基板相对设置的对置基板，以及设置在所述阵列基板和所述对置基板之间的液晶层。
在本申请所提供的显示面板中，所述液晶层中与所述间隙区对应的液晶分子趋向于90°方位角预倾。
在本申请所提供的显示面板中，所述显示面板的像素结构包括4畴像素结构和8畴像素结构中的任意一种。
另一方面，本申请还提供了一种显示面板，包括相邻设置的数据线走线区和像素区；所述数据线走线区设有数据线和位于所述数据线上的DBS公共电极；所述像素区设有与所述DBS公共电极同层设置的像素电极；所述DBS公共电极和所述像素电极之间形成有间隙区；
所述数据线沿第一方向延伸；所述像素电极靠近所述间隙区的一侧与所述第一方向平行，且所述DBS公共电极靠近所述间隙区的一侧包括朝向所述间隙区且呈渐变式的凸起结构；所述凸起结构在所述第一方向上的长度在朝向所述间隙区的方向上呈渐变式减小。
有益效果
相较于现有技术，本申请提供的显示面板中，DBS公共电极靠近间隙区的一侧和像素电极靠近间隙区的一侧中的至少一个包括朝向间隙区且呈渐变式的凸起结构，使得DBS公共电极和像素电极相互靠近的一侧在间隙区为非平直型结构，即DBS公共电极靠近间隙区的一侧和像素电极靠近间隙区的一侧在间隙区形成至少一个类夹角结构，由于液晶分子会朝着夹角的方向收敛，使得显示面板中的液晶层采用HVA配向时，间隙区对应的液晶分子会趋向于90°方位角预倾，可以改善间隙区的液晶配向暗纹的收敛度，减小DBS公共电极边界的暗纹宽度，从而提高显示面板的穿透率。
附图说明
下面结合附图，通过对本申请的具体实施方式详细描述，将使本申请的技术方案及其它有益效果显而易见。
图1为示例性的液晶分子不同方位角的示意图。
图2为本申请实施例提供的一种显示面板的部分截面结构示意图。
图3为本申请实施例提供的一种显示面板的DBS公共电极和像素电极的结构示意图。
图4为本申请实施例提供的另一种显示面板的DBS公共电极和像素电极的结构示意图。
图5为本申请实施例提供的另一种显示面板的DBS公共电极和像素电极的结构示意图。
图6为本申请实施例提供的另一种显示面板的DBS公共电极和像素电极的结构示意图。
图7为本申请实施例提供的另一种显示面板的DBS公共电极和像素电极的结构示意图。
图8为本申请实施例提供的另一种显示面板的DBS公共电极和像素电极的结构示意图。
本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接或可以相互通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本申请提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
对于传统的VA型液晶显示面板，HVA配向制程是极为关键的一步，该制程直接影响显示面板的光学品味、制程或驱动可调余量；一般通过在CF公共电极(或与阵列基板相对设置的对置基板上的公共电极)和DBS公共电极上施加高电压波形信号，并将像素电极接地，从而在上下板电极之间形成预定方向的电场，使得液晶分子定向倒伏后，进行UV紫外光照射并固化形成预倾角，以此达到暗纹消除以提高穿透率，并提高或调节相应时间的目的；然而，由于DBS公共电极与CF公共电极之间无压差，或压差较小(达不到液晶开启阈值电压)，也就是说DBS公共电极与像素电极在HVA配向时压差较大，使得DBS公共电极与像素电极之间的间隙区对应的液晶分子垂直于数据线方向预倾，即方位角为0°，此时DBS公共电极与像素电极之间的间隙区的液晶效率较低，容易波动且损失穿透率。
具体的，液晶分子的方位角可以理解为液晶分子的长轴在垂直于显示面板方向上的投影与垂直于数据线的方向之间的夹角。如图1所示，液晶分子的方位角为0°时，液晶分子的的长轴投影与DBS公共电极(或数据线)的延伸 方向垂直，液晶分子的方位角为90°时，液晶分子的的长轴投影与DBS公共电极的延伸方向平行。
表一：
Figure PCTCN2020079446-appb-000001
表一为通过仿真模拟得到的间隙区在不同预倾角α和不同间隙区方位角β下的穿透率Tr的大小，由表一可知，液晶分子的预倾角α为0.7°、0.9°或1.2°时，间隙区的液晶分子方位角β为0°时穿透率Tr最小，且随着方位角β从0°增大到90°，穿透率Tr逐渐增大，方位角β为90°时穿透率Tr最大。因此，可以通过调整间隙区对应的液晶分子的方位角来提高间隙区的穿透率，从而减小DBS公共电极两侧的暗纹宽度。
如图2至图4所示，本申请实施例提供了一种显示面板1，显示面板1包括多个数据线走线区2和多个像素区3，其中，任意两个相邻的像素区3之间设有一个数据线走线区2，且任意两个相邻的数据线走线区2之间设有一个像素区3；对于任意相邻设置的数据线走线区2和像素区3，数据线走线区2设有数据线4和位于数据线4上的DBS公共电极5，像素区3设有与DBS公共电极5同层设置的像素电极6，且DBS公共电极5和像素电极6之间形成有间隙区7，DBS公共电极5靠近间隙区7的一侧和像素电极6靠近间隙区7的一侧中的至少一个包括朝向间隙区7且呈渐变式的凸起结构8。
需要说明的是，本申请实施例仅以一个数据线走线区2以及与该数据线走线区2相邻的一个像素区3为例说明；可以理解的是，任意一个数据线走线区2的DBS公共电极5和与该DBS公共电极5相邻的像素电极6均在本申请的保护范围内。本申请实施例只对DBS公共电极5和相邻的像素电极6的单侧进行描述，实际上，凸起结构8可以设置在DBS公共电极5或者像素电极6的两侧。
具体的，数据线4沿第一方向(本实施例中第一方向为竖直方向)延伸；如图3所示，像素电极6靠近间隙区7的一侧与第一方向平行，且DBS公共电极5靠近间隙区7的一侧包括凸起结构8；或者，如图4所示，DBS公共电极5靠近间隙区7的一侧与第一方向平行，且像素电极6靠近间隙区7的一侧包括凸起结构8。
当然，像素电极6靠近间隙区7的一侧以及DBS公共电极5靠近间隙区7的一侧均可以包括凸起结构8；或者，将像素电极6在第一方向上分为相邻的第一段和第二段，像素电极6的第一段靠近间隙区7的一侧包括凸起结构8，像素电极6的第二段靠近间隙区7的一侧与第一方向平行，对应的，与像素电极6的第一段对应的DBS公共电极5靠近间隙区7的一侧与第一方向平行，与像素电极6的第二段对应的DBS公共电极5靠近间隙区7的一侧包括凸起结构8。以上几种情况均可以使像素电极6靠近间隙区7的一侧与DBS公共电极5靠近间隙区7的一侧之间为非平直型结构。
需要注意的是，此处的平直型是指像素电极6靠近间隙区7的一侧和DBS公共电极5靠近间隙区7的一侧均与第一方向平行，也就是说像素电极6靠近间隙区7的一侧和DBS公共电极5靠近间隙区7的一侧相互平行。
具体的，凸起结构8在第一方向上的长度在朝向间隙区7的方向上呈渐变式减小。
具体的，凸起结构8在垂直于显示面板1方向上的投影为直角三角形，凸起结构8靠近间隙区7的一侧在垂直于显示面板1方向上的投影为直角三角形的斜边9，斜边9与第一方向之间的夹角大于0°且小于或等于4°。
具体的，显示面板1还包括彩色滤光片10，彩色滤光片10位于数据线4和DBS公共电极5之间，也就是说本实施例提供的显示面板1为COA(Color Filter On Array，彩色滤光片10在阵列侧)型显示面板；当然，本申请实施例不限于COA型液晶显示面板。
具体的，显示面板1还包括与数据线走线区2相交设置的扫描线走线区；扫描线走线区设有与数据线4相交且绝缘设置的扫描线，以及位于扫描线上的薄膜晶体管；薄膜晶体管分别与扫描线、数据线4和像素电极6电连接。薄膜晶体管、扫描线、数据线4、彩色滤光片10、DBS公共电极5和像素电极6 均为阵列基板19的组成结构，显示面板1还包括与阵列基板19相对设置的对置基板20，以及设置在阵列基板19和对置基板20之间的液晶层23；对置基板20包括衬底基板21和位于衬底基板21靠近液晶层23一侧的公共电极22；HVA配向制程中，在对置基板20侧的公共电极22和阵列基板19侧的DBS公共电极5上施加高电压波形信号，并将像素电极6接地，使得阵列基板19和对置基板20之间形成预定方向的电场，从而使得液晶层23的液晶分子24定向倒伏。
在一实施例中，像素电极6包括靠近DBS公共电极5设置的第一主干电极11，以及一端与第一主干电极11电连接且另一端沿第二方向延伸的第二主干电极12；第一方向与第二方向相互垂直，且第一主干电极11关于第二主干电极12对称设置；DBS公共电极5靠近间隙区7的一侧和第一主干电极11靠近间隙区7的一侧中的至少一个包括凸起结构8。当然，像素电极6还包括多个连接第一主干电极11和第二主干电极12的支部电极13。
具体的，显示面板1的像素结构可以是4畴像素结构，也可以是8畴像素结构，当然不仅限于此。
本实施例中，DBS公共电极5靠近间隙区7的一侧和像素电极6靠近间隙区7的一侧中的至少一个包括朝向间隙区7且呈渐变式的凸起结构8，使得DBS公共电极5和像素电极6相互靠近的一侧在间隙区7为非平直型结构，即DBS公共电极5靠近间隙区7的一侧和像素电极6靠近间隙区7的一侧在间隙区7形成类夹角结构(即DBS公共电极5靠近间隙区7的一侧的任意一段的延长线与对应的像素电极6靠近间隙区7的一侧的延长线相交)，由于液晶分子会朝着夹角的方向收敛，使得显示面板1中的液晶层采用HVA配向时，间隙区7对应的液晶分子会趋向于90°方位角预倾，可以改善间隙区7的液晶配向暗纹的收敛度，减小DBS公共电极5边界的暗纹宽度，从而提高显示面板1的穿透率。
需要说明的是，间隙区7对应的液晶分子趋向于90°方位角预倾，这里的趋向于90°方位角，可以是液晶分子的方位角呈渐近式的从0°增大到90°，也可以是液晶分子的方位角均接近90°(包括小于90°，也包括大于90°)，当然，液晶分子的方位角也可以均为90°，此处不做限制。
如图5和图6所示，本申请实施例还提供了一种显示面板1，与上述实施例不同的在于，凸起结构8在垂直于显示面板1方向上的投影为钝角三角形，凸起结构8靠近间隙区7的一侧在垂直于显示面板1方向上的投影包括相邻接的第一边14和第二边15，第一边14和第二边15分别为钝角三角形的两个短边。
具体的，第一边14和第二边15与第一方向之间的夹角均大于0°且小于或等于4°。
具体的，凸起结构8关于第二主干电极12对称设置，也就是说第一边14和第二边15的长度相同，即上述钝角三角形为等腰三角形。
具体的，如图5所示，像素电极6的第一主干电极11靠近间隙区7的一侧与第一方向平行，且DBS公共电极5靠近间隙区7的一侧包括凸起结构8；或者，如图6所示，DBS公共电极5靠近间隙区7的一侧与第一方向平行，且像素电极6的第一主干电极11靠近间隙区7的一侧包括凸起结构8。
本实施例中，DBS公共电极5靠近间隙区7的一侧和像素电极6靠近间隙区7的一侧中的至少一个包括朝向间隙区7且呈渐变式的凸起结构8，使得DBS公共电极5和像素电极6相互靠近的一侧在间隙区7为非平直型结构，即DBS公共电极5靠近间隙区7的一侧和像素电极6靠近间隙区7的一侧在间隙区7形成两个类夹角结构，由于液晶分子会朝着夹角的方向收敛，使得显示面板1中的液晶层采用HVA配向时，间隙区7对应的液晶分子会趋向于90°方位角预倾，可以改善间隙区7的液晶配向暗纹的收敛度，减小DBS公共电极5边界的暗纹宽度，从而提高显示面板1的穿透率。另外，本申请实施例中，DBS公共电极5靠近间隙区7的一侧和像素电极6靠近间隙区7的一侧在间隙区7形成两个类夹角结构为对称结构，两个类夹角结构对应的液晶分子的呈多样性预倾，有利于改善色偏。
如图7和图8所示，本申请实施例还提供了一种显示面板1，与上述实施例不同的在于，凸起结构8呈锯齿状。
具体的，凸起结构8包括多个在第一方向上依次邻接的锯齿单元16；每个锯齿单元16在垂直于显示面板1方向上的投影包括相邻接的第三边17和第 四边18；第三边17和第四边18与第一方向之间的夹角均大于0°且小于或等于4°。
具体的，锯齿状的凸起结构8关于第二主干电极12对称设置；且第三边17和第四边18的长度相同，即每个锯齿单元16在垂直于显示面板1方向上的投影为等腰三角形；当然，在一实施例中，第三边17和第四边18的长度也可以不同，满足第三边17和第四边18与第一方向之间的夹角均大于0°且小于或等于4°即可。
具体的，如图7所示，像素电极6的第一主干电极11靠近间隙区7的一侧与第一方向平行，且DBS公共电极5靠近间隙区7的一侧包括锯齿状的凸起结构8；或者，如图8所示，DBS公共电极5靠近间隙区7的一侧与第一方向平行，且像素电极6的第一主干电极11靠近间隙区7的一侧包括锯齿状的凸起结构8。
本实施例中，DBS公共电极5靠近间隙区7的一侧和像素电极6靠近间隙区7的一侧中的至少一个包括朝向间隙区7且呈渐变式的凸起结构8，使得DBS公共电极5和像素电极6相互靠近的一侧在间隙区7为非平直型结构，即DBS公共电极5靠近间隙区7的一侧和像素电极6靠近间隙区7的一侧在间隙区7形成多个类夹角结构，由于液晶分子会朝着夹角的方向收敛，使得显示面板1中的液晶层采用HVA配向时，间隙区7对应的液晶分子会趋向于90°方位角预倾，可以改善间隙区7的液晶配向暗纹的收敛度，减小DBS公共电极5边界的暗纹宽度，从而提高显示面板1的穿透率。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
以上对本申请实施例所提供的一种显示面板进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (20)

  1. 一种显示面板，包括相邻设置的数据线走线区和像素区；所述数据线走线区设有数据线和位于所述数据线上的DBS公共电极；所述像素区设有与所述DBS公共电极同层设置的像素电极；所述DBS公共电极和所述像素电极之间形成有间隙区；
    所述DBS公共电极靠近所述间隙区的一侧和所述像素电极靠近所述间隙区的一侧中的至少一个包括朝向所述间隙区且呈渐变式的凸起结构。
  2. 如权利要求1所述的显示面板，其中，所述数据线沿第一方向延伸；所述像素电极靠近所述间隙区的一侧与所述第一方向平行，且所述DBS公共电极靠近所述间隙区的一侧包括所述凸起结构。
  3. 如权利要求1所述的显示面板，其中，所述数据线沿第一方向延伸；所述DBS公共电极靠近所述间隙区的一侧与所述第一方向平行，且所述像素电极靠近所述间隙区的一侧包括所述凸起结构。
  4. 如权利要求1所述的显示面板，其中，所述凸起结构在所述第一方向上的长度在朝向所述间隙区的方向上呈渐变式减小。
  5. 如权利要求4所述的显示面板，其中，所述凸起结构在垂直于所述显示面板方向上的投影为直角三角形，所述凸起结构靠近所述间隙区的一侧在垂直于所述显示面板方向上的投影为所述直角三角形的斜边。
  6. 如权利要求5所述的显示面板，其中，所述斜边与所述第一方向之间的夹角大于0°且小于或等于4°。
  7. 如权利要求4所述的显示面板，其中，所述凸起结构在垂直于所述显示面板方向上的投影为钝角三角形，所述凸起结构靠近所述间隙区的一侧在垂直于所述显示面板方向上的投影包括相邻接的第一边和第二边，所述第一边和所述第二边分别为所述钝角三角形的两个短边。
  8. 如权利要求7所述的显示面板，其中，所述第一边和所述第二边与所述第一方向之间的夹角均大于0°且小于或等于4°。
  9. 如权利要求7所述的显示面板，其中，所述第一边和所述第二边的长度相同。
  10. 如权利要求4所述的显示面板，其中，所述凸起结构呈锯齿状。
  11. 如权利要求10所述的显示面板，其中，所述凸起结构包括多个在所述第一方向上依次邻接的锯齿单元；
    每个所述锯齿单元在垂直于所述显示面板方向上的投影包括相邻接的第三边和第四边；所述第三边和所述第四边与所述第一方向之间的夹角均大于0°且小于或等于4°。
  12. 如权利要求11所述的显示面板，其中，所述第三边和所述第四边的长度相同。
  13. 如权利要求1所述的显示面板，其中，所述数据线沿第一方向延伸；所述像素电极包括靠近所述DBS公共电极设置的第一主干电极，以及一端与所述第一主干电极电连接且另一端沿第二方向延伸的第二主干电极；所述第一方向与所述第二方向相互垂直，且所述第一主干电极关于第二主干电极对称设置；
    所述DBS公共电极靠近所述间隙区的一侧和所述第一主干电极靠近所述间隙区的一侧中的至少一个包括所述凸起结构；所述凸起结构关于第二主干电极对称设置。
  14. 如权利要求13所述的显示面板，其中，所述像素电极还包括多个连接所述第一主干电极和所述第二主干电极的支部电极。
  15. 如权利要求1所述的显示面板，其中，所述显示面板还包括彩色滤光片，所述彩色滤光片位于所述数据线和所述DBS公共电极之间。
  16. 如权利要求15所述的显示面板，其中，所述显示面板还包括与所述数据线走线区相交设置的扫描线走线区；所述扫描线走线区设有与所述数据线相交且绝缘设置的扫描线，以及位于所述扫描线上的薄膜晶体管；所述薄膜晶体管分别与所述扫描线、所述数据线和所述像素电极电连接；所述薄膜晶体管、所述扫描线、所述数据线、所述彩色滤光片、所述DBS公共电极和所述像素电极构成阵列基板。
  17. 如权利要求16所述的显示面板，其中，所述显示面板还包括与所述阵列基板相对设置的对置基板，以及设置在所述阵列基板和所述对置基板之间的液晶层。
  18. 如权利要求17所述的显示面板，其中，所述液晶层中与所述间隙区 对应的液晶分子趋向于90°方位角预倾。
  19. 如权利要求1所述的显示面板，其中，所述显示面板的像素结构包括4畴像素结构和8畴像素结构中的任意一种。
  20. 一种显示面板，包括相邻设置的数据线走线区和像素区；所述数据线走线区设有数据线和位于所述数据线上的DBS公共电极；所述像素区设有与所述DBS公共电极同层设置的像素电极；所述DBS公共电极和所述像素电极之间形成有间隙区；
    所述数据线沿第一方向延伸；所述像素电极靠近所述间隙区的一侧与所述第一方向平行，且所述DBS公共电极靠近所述间隙区的一侧包括朝向所述间隙区且呈渐变式的凸起结构；所述凸起结构在所述第一方向上的长度在朝向所述间隙区的方向上呈渐变式减小。
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CN107817631A (zh) * 2017-10-26 2018-03-20 深圳市华星光电技术有限公司 一种液晶面板

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