WO2018099122A1 - 显示面板及其制备方法、显示装置 - Google Patents

显示面板及其制备方法、显示装置 Download PDF

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Publication number
WO2018099122A1
WO2018099122A1 PCT/CN2017/096205 CN2017096205W WO2018099122A1 WO 2018099122 A1 WO2018099122 A1 WO 2018099122A1 CN 2017096205 W CN2017096205 W CN 2017096205W WO 2018099122 A1 WO2018099122 A1 WO 2018099122A1
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Prior art keywords
sub
substrate
electrode
display panel
pixel
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PCT/CN2017/096205
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English (en)
French (fr)
Inventor
王炎
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京东方科技集团股份有限公司
合肥京东方光电科技有限公司
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Priority to US16/067,987 priority Critical patent/US10394090B2/en
Publication of WO2018099122A1 publication Critical patent/WO2018099122A1/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
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    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133707—Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
    • G—PHYSICS
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    • 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
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    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
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    • G—PHYSICS
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    • 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
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    • G02F1/134336—Matrix
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    • 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
    • G02F1/134363—Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13396—Spacers having different sizes
    • 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
    • G02F1/134318—Electrodes characterised by their geometrical arrangement having a patterned common electrode
    • 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
    • G02F1/134345—Subdivided pixels, e.g. for grey scale or redundancy
    • 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
    • G02F1/134372—Electrodes characterised by their geometrical arrangement for fringe field switching [FFS] where the common electrode is not patterned
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/121—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode common or background
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
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    • G—PHYSICS
    • G02—OPTICS
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    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/123—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode pixel

Definitions

  • Embodiments of the present disclosure relate to a display panel, a method of fabricating the same, and a display device.
  • liquid crystal displays with higher aperture ratios and wider viewing angles are increasingly favored by people.
  • current liquid crystal displays mostly adopt a dual domain or single domain pixel array structure.
  • the tilt direction of the pixel electrode is the same, and the liquid crystal display of such a pixel structure has a high light transmittance.
  • the upper and lower halves of the pixel electrode in each pixel unit are symmetrically inclined structures, and in the energized state, the liquid crystal molecules in the upper half region are located in the lower half.
  • the liquid crystal molecules in the region have opposite tilt angles, that is, there are two different liquid crystal domains in a single pixel region, and the pixel structure can have higher contrast and wider viewing angle range than single domain pixels. .
  • At least one embodiment of the present disclosure provides a display panel, which is divided into a plurality of sub-pixel units, including: a first substrate and a second substrate disposed opposite to each other, and disposed on the first substrate and the second substrate a plurality of main spacers supporting the two; wherein the plurality of sub-pixel units comprise a plurality of first sub-pixel units and a plurality of second sub-pixel units, the plurality of first sub-pixel units Either adjacent to the main spacer and disposed in a single domain structure, the plurality of second sub-pixel units are not adjacent to any of the main spacers and are disposed in a multi-domain structure.
  • the first sub-pixel unit includes a first electrode disposed on the second substrate, and the first electrode has a direction extending in the same direction. a slit; the second sub-pixel unit includes a second electrode disposed on the second substrate, the second electrode having at least two slits extending in different directions.
  • the second electrode has a dual domain structure, and the second electrode includes a first slit extending in a first direction and extending in a second direction a second slit, the first direction being formed with respect to a row direction of the sub-pixel unit
  • the angle formed by the angle and the second direction with respect to the row direction of the sub-pixel unit is equal or unequal.
  • the angle of the first direction with respect to the row direction of the sub-pixel unit is 70° to 85°.
  • the first sub-pixel unit further includes a third electrode disposed on the second substrate; the second sub-pixel unit further includes a fourth electrode on the second substrate.
  • the first electrode and the second electrode are pixel electrodes, and the third electrode and the fourth electrode are common electrodes, or The first electrode and the second electrode are common electrodes, and the third electrode and the fourth electrode are pixel electrodes.
  • a plurality of the main spacers are periodically arranged.
  • the display panel provided by at least one embodiment of the present disclosure may further include a plurality of auxiliary spacers spaced apart from the main spacer, the auxiliary spacers having a lower height than the main spacer The height of the object.
  • the first substrate may further be provided with a color filter layer and a black matrix, and the plurality of the main spacers are disposed on the black matrix.
  • the color filter layer is divided by the black matrix into a plurality of color filter blocks arranged in an array, and each of the color filter blocks corresponds to one of the sub-pixel units.
  • an orthographic projection of the first sub-pixel unit on the first substrate and an orthographic projection portion of the black matrix on the first substrate overlapping.
  • the display panel provided by at least one embodiment of the present disclosure may further include a liquid crystal filled between the first substrate and the second substrate.
  • the display panel provided by at least one embodiment of the present disclosure may further include an alignment film coated on the surface of at least one of the first substrate and the second substrate to be in contact with the liquid crystal.
  • Embodiments of the present disclosure also provide a display device including any of the above display panels.
  • At least one embodiment of the present disclosure further provides a method of fabricating a display panel, comprising: providing a first substrate and a second substrate; forming a plurality of main spacers between the first substrate and the second substrate Supporting the two; wherein the display panel is divided into a plurality of sub-pixel units, the plurality of sub-pixel units including a plurality of first sub-pixel units and a plurality of second sub-pixel units, the plurality of first sub- The pixel unit is adjacent to any of the main spacers and is disposed in a single domain structure, and the plurality of second sub-pixel units are not adjacent to any of the main spacers and are disposed in a multi-domain structure.
  • FIG. 1 is a schematic cross-sectional structural view of a display panel
  • FIG. 2 is a schematic top plan view of the display panel of FIG. 1;
  • FIG. 3 is a schematic top plan view of another display panel
  • FIG. 4 is a schematic top plan view of a display panel according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic top plan view of a display panel according to another embodiment of the present disclosure.
  • FIG. 6 is an enlarged schematic view showing a partial structure of the first sub-pixel unit of FIG. 5;
  • FIG. 7 is an enlarged schematic view showing a partial structure of the second sub-pixel unit of FIG. 5.
  • FIG. 1 is a schematic cross-sectional view of a display panel including, for example, a first substrate 10 and a second substrate 11, and a liquid crystal 12 filled between the first substrate 10 and the second substrate 11.
  • the first substrate 10 and the second substrate 11 are bonded to each other, for example, by a sealant to form a liquid crystal cell.
  • 2 is a schematic top view of the display panel of FIG. 1 .
  • the first substrate 10 in the display panel is, for example, a color filter substrate.
  • the color filter substrate mainly includes a black matrix 101 , a red filter block 102 , and a green filter block 103 .
  • the blue filter block 104 and the column spacer 105, respectively, the second substrate is, for example, an array substrate.
  • the column spacer 105 is divided into a main column spacer 1051 and an auxiliary column spacer 1052.
  • the main column spacer 1051 In the state in which the first substrate and the second substrate are normally paired with the box, the main column spacer 1051 is supported.
  • the auxiliary spacer 1052 can also support effect.
  • the first substrate 10 and the second substrate 11 are coated with an alignment film on the surface in contact with the liquid crystal to pre-align the liquid crystal molecules.
  • the width of the black matrix is exemplarily set to be large, and actually the black matrix is covered.
  • the area of the area is smaller than the area of the pixel area.
  • the large setting of the width of the black matrix in Figures 3 to 5 below is also the same consideration.
  • FIG. 3 provides a schematic structural view of another display panel, as shown in FIG.
  • the orthographic projection of the pixel unit adjacent to the main column spacer 1051 on the first substrate overlaps with the orthographic projection of the black matrix on the first substrate, that is, the occlusion of the black matrix 101 around the main column spacer 1051
  • the range is larger than the occlusion range of the black matrix 101 around the auxiliary column spacer 1052, so that a part of the black matrix 101 covers the sub-pixel unit adjacent to the main column spacer 1051.
  • the aperture ratio of the sub-pixel unit around the main column spacer 1051 is smaller than the aperture ratio of the sub-pixel unit around the auxiliary column spacer 1052, and accordingly, when the same content is displayed, the main column spacer 1051
  • the brightness of the peripheral sub-pixel units is lower than the brightness of the sub-pixel units around the auxiliary column spacers 1052.
  • the main column spacers are arranged periodically, so that the brightness difference is also periodically arranged, so that the sub-pixel units with low brightness will be connected into a line, and finally the color picture is displayed. Or when a monochrome screen is displayed, a dark streak is formed, which affects the quality of the displayed picture.
  • the brightness of the bi-domain sub-pixel unit near the main column spacer is lower than the double domain not adjacent to any of the main column spacers 1051.
  • the brightness of the pixel unit is 88%, obvious dark streaks appear when the monochrome picture is displayed; the brightness of the bi-domain sub-pixel unit near the main column spacer is lower than that of the main column spacer 1051.
  • Adjacent two-domain sub-pixel single When 80% of the brightness of the element is displayed, significant dark streaks appear when the color picture is displayed.
  • an embodiment of the present disclosure provides a display panel, which is divided into a plurality of sub-pixel units, the display panel includes a first substrate and a second substrate disposed opposite to each other, and is disposed on the first substrate and the second substrate.
  • the plurality of sub-pixel units including the plurality of first sub-pixel units and the plurality of second sub-pixel units, and the plurality of first sub-pixel units and the main spacer Adjacent and arranged in a single domain structure, the plurality of second sub-pixel units are not adjacent to any of the main spacers and are disposed in a multi-domain structure.
  • the sub-pixel unit of the multi-domain structure has a bent region, however, the electric field is confusing in the bent region, the region may appear as a dark region, and the utilization ratio of the liquid to the light is low; the single-domain pixel has no corresponding dark region.
  • the utilization of light by the liquid crystal at the single-domain pixel region is higher than that of the liquid crystal at the multi-domain pixel region, so that the transmittance of light is correspondingly high.
  • Embodiments of the present disclosure improve the transmittance of the sub-pixel units by designing the sub-pixel units around the main spacers into a single domain structure, thereby increasing the brightness of the corresponding sub-pixel units to compensate for the decrease in aperture ratio.
  • the brightness loss is effective, thereby preventing the problem of poor streaks due to the difference in local pixel brightness during color picture display or monochrome picture display, and poor picture quality.
  • FIG. 4 is a schematic top plan view of a display panel provided between a first substrate and a second substrate (not shown) to support the display panel. a first substrate and a second substrate.
  • the display panel is divided into a plurality of sub-pixel units, and the plurality of sub-pixel units include a plurality of first sub-pixel units 202 and a plurality of second sub-pixel units 203, and the plurality of first sub-pixel units 202 and the main spacer 204
  • the plurality of second sub-pixel units 203 are not adjacent to any of the main spacers 204 and are arranged in a multi-domain structure, for example, as shown in FIG. 4, the second sub-pixel unit 203 is a four-domain structure.
  • a multi-domain structure in a sub-pixel unit may be implemented by various structures, and the multi-domain structure may include 2 or more domain regions.
  • the first substrate is a color film substrate
  • the color film substrate includes a first substrate, a black matrix, a color filter layer, a flat layer, and the like.
  • the main spacer is disposed on the first substrate (color film substrate)
  • a plurality of main spacers are disposed on the black matrix, and the color filter layer is divided by the black matrix into a plurality of color filter blocks arranged in an array, and each of the color filter blocks corresponds to one sub-pixel unit.
  • the second substrate is an array substrate
  • the array substrate includes a second substrate, a data line metal electrode, a data line metal electrode insulating layer, a scan line metal electrode, a scan line metal electrode insulating layer, a pixel electrode, and the like.
  • the black matrix is formed on the non-display area between the pixel area and the pixel area of the color filter substrate, and the light blocking the non-display area is transmitted, and generally the black matrix is disposed facing the signal line on the array substrate, and the signal line includes Data lines and scan lines.
  • the main spacer 204 is a column spacer (PS, Post Spacer) or a ball spacer (BS, Ball Spacer), and the main spacer 204 is formed on the first substrate or the second substrate, or simultaneously formed on On the first substrate and the second substrate.
  • the main spacer is disposed on the first substrate and the first substrate is a color filter substrate as an example.
  • the material of the column spacer includes a transparent ultraviolet light-curing acryl resin-based material
  • the bulk material forming the spherical spacer includes a melamine resin, a urea resin, a polystyrene resin, or the like.
  • the main spacer is a column spacer, and the main spacer is formed on the color filter substrate by a process such as exposure and development using a positive photoresist material.
  • a positive photoresist material means that the exposed photoresist material after exposure and development can be washed away by the developer.
  • a positive photoresist material is applied, and the main spacer is formed by one exposure and development through a patterned mask.
  • the primary spacer and the auxiliary spacer may also be formed by one-time exposure development through a halftone or gray tone mask.
  • the primary spacer is placed against the black matrix on the color filter substrate, and the primary spacer is disposed below the black matrix.
  • the first sub-pixel unit 202 includes a red sub-pixel unit, a green sub-pixel unit, and a blue sub-pixel unit
  • the second sub-pixel unit 203 also includes a red sub-pixel unit, a green sub-pixel unit, and a blue sub-pixel unit.
  • the first sub-pixel unit 202 includes a first electrode 206 disposed on the second substrate, the first electrode is a slit-shaped electrode, and the first electrode 206 has a slit extending in the same direction;
  • the second sub-pixel unit includes a second electrode 207 disposed on the second substrate, the second electrode is a slit-shaped electrode, and the second electrode 207 has at least two slits extending in different directions, for example, in FIG.
  • the second electrode is a four-domain electrode structure, and the corresponding second sub-pixel unit has a four-domain structure.
  • FIG. 5 is a schematic top plan view of a display panel according to another embodiment of the present disclosure.
  • the first electrode 206 has slits extending in the same direction
  • the first electrode 206 is a single domain structure
  • the second electrode 207 has a double domain structure
  • FIG. 7 is the second sub-pixel unit of FIG. Enlarged view, as shown in FIG. 7, the second electrode 207 includes a first slit 2071 extending in a first direction and a second slit 2072 extending in a second direction.
  • the liquid crystal molecules in the first sub-pixel unit are obliquely arranged in the same direction
  • the liquid crystal molecules in the second sub-pixel unit are obliquely arranged in two different directions.
  • FIG. 6 is an enlarged schematic view showing a partial structure of the first sub-pixel unit of FIG. 5.
  • the first electrode of the first sub-pixel unit has a slit, and the direction of the slit of the first electrode and the row direction of the sub-pixel unit
  • the angle ⁇ 1 is from 80° to 95°, for example, 85°, 90°, and 95°.
  • the angle formed by the first direction with respect to the row direction of the sub-pixel unit is equal to the angle formed by the second direction with respect to the row direction of the sub-pixel unit. That is, the first domain and the second domain in the second sub-pixel unit of the dual domain structure form an axisymmetric pattern with the angle bisector as an axis.
  • the angle formed by the first direction with respect to the row direction of the sub-pixel unit and the angle formed by the second direction with respect to the row direction of the sub-pixel unit may also be unequal to each other.
  • the angle ⁇ 2 of the first direction with respect to the row direction of the sub-pixel unit is 70° to 85°.
  • 70°, 75°, 80°, and 85° are 70° to 85°.
  • the dual domain structure and the four domain structure respectively adopted by the second sub-pixel unit are merely illustrative and are not limiting of the disclosure, and embodiments of the present disclosure are not Limited to the structures shown in FIGS. 4 and 5, the second electrode may also be a multi-domain structure such as a three-domain or a five-domain.
  • the first sub-pixel unit 202 further includes a third electrode disposed on the second substrate
  • the second sub-pixel unit 203 further includes a fourth electrode disposed on the second substrate.
  • the third electrode and the fourth electrode may be a plate electrode structure or a slit-like structure corresponding to the first electrode and the second electrode, respectively.
  • the first electrode and the second electrode are pixel electrodes
  • the third electrode and the fourth electrode are common electrodes
  • the first electrode and the second electrode are common electrodes
  • the third electrode and the fourth electrode are pixel electrodes.
  • the pixel electrode replacing the first electrode may include a slit extending in the same direction instead of the pixel of the second electrode.
  • the electrode may include a first slit extending along the first direction and a second side To the extended second slit, the common electrode may be a plate electrode or a slit electrode.
  • the common electrode replacing the first electrode may include a slit extending in the same direction instead of the second electrode
  • the common electrode may include a first slit extending in the first direction and a second slit extending in the second direction
  • the pixel electrode may be a plate electrode or a slit electrode.
  • a first domain liquid crystal electric field and a second domain liquid crystal electric field having different directions may be respectively formed in each adjacent two rows of sub-pixel unit regions, that is, each adjacent two rows
  • the direction of the liquid crystal electric field formed in the pixel unit region is at a certain angle, and the light-emitting direction in each adjacent two rows of sub-pixel unit regions can compensate each other, so that the light mixing effect of the dual-domain pixel structure is better. It is smaller.
  • the material forming the first electrode, the second electrode, the third electrode, and the fourth electrode may be a transparent conductive material such as indium tin oxide (ITO) and indium zinc oxide (IZO).
  • ITO indium tin oxide
  • IZO indium zinc oxide
  • the display panel further includes a liquid crystal filled between the first substrate and the second substrate.
  • the liquid crystal is a cholesteric liquid crystal, a nematic liquid crystal, or a smectic liquid crystal, as needed.
  • the display panel further includes an alignment film coated on the surface of at least one of the first substrate and the second substrate to be in contact with the liquid crystal.
  • the material of the alignment film includes polystyrene and its derivatives, polyvinyl alcohol, polyester, epoxy resin, polyurethane, polysilane, polyimide, etc.; the alignment film can be rubbed oriented after coating or The photo-alignment operation allows the alignment film to perform a pre-alignment operation on the liquid crystal molecules.
  • the display panel in the embodiment of the present disclosure can be widely applied to FFS (Fringe Field Switching) type liquid crystal display, ADS (AD-SDS, Advanced-Super Dimensional Switching, ADS for short).
  • FFS Flexible Field Switching
  • ADS AD-SDS, Advanced-Super Dimensional Switching, ADS for short
  • IPS In-plane Switching
  • the common electrode and the pixel electrode of the ADS type liquid crystal display and the FFS type liquid crystal display may be disposed on a second substrate (for example, an array substrate).
  • the FFS technology mainly produces the fringe electric field between the pixel electrodes in the same plane, so that the aligned liquid crystal molecules between the electrodes and directly above the electrodes are rotationally converted in the plane direction, thereby improving the light transmission efficiency of the liquid crystal layer.
  • the ADS technology mainly passes through the same plane.
  • the parallel electric field generated by the edge of the inner pixel electrode and the longitudinal electric field generated between the pixel electrode layer and the common electrode layer form a multi-dimensional electric field, so that all the aligned liquid crystal molecules between the pixel electrodes in the liquid crystal cell and directly above the electrode can be rotated, thereby improving the plane.
  • Orientation is the working efficiency of the liquid crystal and increases the light transmission efficiency.
  • a plurality of main spacers 204 are periodically arranged, and the main spacers are periodically arranged to enable The cell thickness of the liquid crystal is more uniform, which is beneficial to improve the display quality.
  • the display panel provided by the embodiment of the present disclosure further includes a plurality of auxiliary spacers 205 spaced apart from the main spacers 204 , and the auxiliary spacers 205 are lower in height than the main spacers 204 .
  • the height of the main spacer 204 plays a supporting role.
  • the auxiliary spacer The cushion can serve as a support.
  • the orthographic projection of the first sub-pixel unit 202 on the first substrate overlaps with the orthographic projection of the black matrix 201 on the first substrate.
  • the area of the black matrix 201 covered by the periphery of the main spacer 204 is larger than the area of the black matrix 201 covered by the periphery of the auxiliary spacer 205.
  • the color filter block adjacent to the position of the main spacer 204 has a chamfered structure compared to the other color filter blocks (the angle between the color filter block and the main spacer is covered by the black matrix to form the chamfered structure), And the chamfer structure faces the main spacer 204, which is equivalent to pulling apart the distance between the first sub-pixel unit 202 and the main spacer 204, thereby reducing the damage alignment when the external pressing force is too large.
  • the risk of light leakage caused by the film but this causes the aperture ratio of the first sub-pixel unit 202 around the main spacer 204 to be smaller than the aperture ratio of the second sub-pixel unit 203 around the auxiliary spacer 205.
  • the brightness of the first sub-pixel unit 202 around the main spacer 204 is lower than the brightness of the second sub-pixel unit 203 around the auxiliary spacer 205.
  • the transmittance of the first sub-pixel unit 202 can be improved, and the corresponding first can be improved.
  • the brightness of the sub-pixel unit 202 compensates for the loss of brightness due to the decrease in the aperture ratio, thereby effectively preventing streaking defects caused by differences in local pixel brightness during color screen or monochrome screen display, thereby improving the quality of the screen display.
  • At least one embodiment of the present disclosure also provides a display device including any of the above display panels, and other structures in the display device can be referred to a conventional design.
  • the display device can be, for example, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like, or any product or component having a display function.
  • At least one embodiment of the present disclosure further provides a method for fabricating a display panel, comprising: providing a first substrate and a second substrate, forming a plurality of main spacers between the first substrate and the second substrate to support the two, and displaying
  • the panel is divided into a plurality of sub-pixel units, the plurality of sub-pixel units including a plurality of first sub-pixel units and a plurality of second sub-pixel units, and the plurality of first sub-pixel units and the main spacer Adjacent and arranged in a single domain structure, the plurality of second sub-pixel units are not adjacent to any of the main spacers and are disposed in a multi-domain structure.
  • the first substrate is a color film substrate
  • the color film substrate includes a first substrate, a black matrix, a color filter layer, a flat layer, and the like.
  • the main spacer is disposed on the first substrate (color film substrate)
  • the plurality of main spacers are disposed on the black matrix
  • the color filter layer is divided into a plurality of color filter blocks arranged in an array by the black matrix. Each color filter block corresponds to one sub-pixel unit.
  • the second substrate is an array substrate
  • the array substrate includes a second substrate, a data line metal electrode, a data line metal electrode insulating layer, a scan line metal electrode, a scan line metal electrode insulating layer, a pixel electrode, and the like.
  • the main spacer is a column spacer, and the main spacer is formed on the color filter substrate by a process such as exposure development using a positive photoresist material.
  • a positive photoresist material means that the exposed photoresist material after exposure and development can be washed away by the developer.
  • a positive photoresist material is applied, and the main spacer is formed by one exposure and development through a patterned mask.
  • the primary spacer and the auxiliary spacer may also be formed by one-time exposure development through a halftone or gray tone mask.
  • the primary spacer is placed against the black matrix on the color filter substrate, and the primary spacer is disposed below the black matrix.
  • the first sub-pixel unit includes a first electrode disposed on the second substrate, the first electrode has a slit extending in the same direction, and the second sub-pixel unit includes a second electrode disposed on the second substrate, The two electrodes have at least two slits extending in different directions.
  • the first sub-pixel unit further includes a third electrode disposed on the second substrate
  • the second sub-pixel unit further includes a fourth electrode disposed on the second substrate.
  • the third electrode and the fourth electrode may be a plate electrode structure or a slit-like structure corresponding to the first electrode and the second electrode, respectively.
  • the first electrode and the second electrode are pixel electrodes
  • the third electrode and the fourth electrode are common electrodes
  • the first electrode and the second electrode are common electrodes
  • the third electrode and the fourth electrode are pixel electrodes.
  • the method of preparation further includes forming a plurality of auxiliary spacers spaced apart from the main spacer, and the height of the auxiliary spacers is lower than the height of the main spacer.
  • the preparation method of the auxiliary spacer refer to the preparation method of the above main spacer.
  • the display panel provided by the embodiment of the present disclosure, the preparation method thereof and the display device have at least Has the following beneficial effects:
  • the display panel improves the transmittance of the first sub-pixel unit by designing the first sub-pixel unit around the main column spacer as a single domain structure;
  • the display panel provided by at least one embodiment of the present disclosure can improve the brightness of the first sub-pixel unit to compensate for the brightness loss caused by the decrease in the aperture ratio
  • the display panel provided by at least one embodiment of the present disclosure can effectively prevent the problem of poor streaks and poor picture quality due to differences in local pixel brightness when displaying a color picture or a monochrome picture.

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Abstract

一种显示面板及其制备方法、显示装置。显示面板划分为多个子像素单元，包括：相对设置的第一基板（10）和第二基板（11），设置在第一基板（10）和第二基板（11）之间以支撑二者的多个主隔垫物(204)；多个子像素单元包括多个第一子像素单元(202)和多个第二子像素单元(203)，多个第一子像素单元(202)与主隔垫物(204)中任一相邻且设置成单畴结构，多个第二子像素单元(203)与主隔垫物(204)中任一不相邻且设置成多畴结构。显示面板可以有效防止彩色画面显示或单色画面显示时因局部像素亮度差异而导致的条纹不良，画面品质不佳的问题。

Description

显示面板及其制备方法、显示装置 技术领域
本公开的实施例涉及一种显示面板及其制备方法、显示装置。
背景技术
随着液晶显示技术的不断发展，具有更高开口率与更宽视角的液晶显示器越来越受到人们的亲睐。为了进一步提高显示性能，目前的液晶显示器大多采用双畴或者单畴的像素阵列结构。
在采用单畴像素的液晶显示器中像素电极的倾斜方向相同，这种像素结构的液晶显示器具有较高的光透过率。对于双畴像素的液晶显示器而言，例如每个像素单元内的像素电极的上半部和下半部为对称的倾斜结构，在通电状态下，位于上半部区域的液晶分子和位于下半部区域的液晶分子具有相反方向的倾斜角，即单个像素区域内存在两个不同的液晶畴，与单畴像素相比，这种像素结构可以具有更高的对比度和更宽的可视角度范围。
发明内容
本公开至少一实施例提供一种显示面板，该显示面板被划分为多个子像素单元，包括：相对设置的第一基板和第二基板，设置在所述第一基板和所述第二基板之间以支撑二者的多个主隔垫物；其中，所述多个子像素单元包括多个第一子像素单元和多个第二子像素单元，所述多个第一子像素单元与所述主隔垫物中任一相邻且设置成单畴结构，所述多个第二子像素单元与所述主隔垫物中任一不相邻且设置成多畴结构。
例如，在本公开至少一实施例提供的所述显示面板中，所述第一子像素单元包括设置在所述第二基板上的第一电极，所述第一电极具有沿同一个方向延伸的狭缝；所述第二子像素单元包括设置在所述第二基板上的第二电极，所述第二电极具有至少两个沿不同方向延伸的狭缝。
例如，在本公开至少一实施例提供的所述显示面板中，所述第二电极具有双畴结构，所述第二电极包括沿第一方向延伸的第一狭缝和沿第二方向延伸的第二狭缝，所述第一方向相对于所述子像素单元的行方向形成的 角度与所述第二方向相对于所述子像素单元的行方向形成的角度相等或不等。
例如，在本公开至少一实施例提供的所述显示面板中，所述第一方向相对于所述子像素单元的行方向所呈的角度为70°～85°。
例如，在本公开至少一实施例提供的所述显示面板中，所述第一子像素单元还包括设置在所述第二基板上的第三电极；所述第二子像素单元还包括设置在所述第二基板上的第四电极。
例如，在本公开至少一实施例提供的所述显示面板中，所述第一电极和所述第二电极为像素电极，所述第三电极和所述第四电极为公共电极，或者，所述第一电极和所述第二电极为公共电极，所述第三电极和所述第四电极为像素电极。
例如，在本公开至少一实施例提供的所述显示面板中，多个所述主隔垫物呈周期性排列。
例如，本公开至少一实施例提供的所述显示面板，还可以包括与所述主隔垫物间隔设置的多个辅助隔垫物，所述辅助隔垫物的高度低于所述主隔垫物的高度。
例如，在本公开至少一实施例提供的所述显示面板中，所述第一基板上还可以设置有彩色滤光层和黑矩阵，多个所述主隔垫物设置在所述黑矩阵上，所述彩色滤光层被所述黑矩阵划分为多个呈阵列排布的彩色滤光块，每个所述彩色滤光块对应一个所述子像素单元。
例如，在本公开至少一实施例提供的所述显示面板中，所述第一子像素单元在所述第一基板上的正投影与所述黑矩阵在所述第一基板上的正投影部分重叠。
例如，本公开至少一实施例提供的所述显示面板，还可以包括填充在所述第一基板和所述第二基板之间的液晶。
例如，本公开至少一实施例提供的所述显示面板，还可以包括涂覆在所述第一基板和所述第二基板至少之一的表面上与所述液晶接触的配向膜。
本公开的实施例还提供一种显示装置，包括上述任一的显示面板。
本公开至少一实施例还提供一种显示面板的制备方法，包括：提供第一基板和第二基板；在所述第一基板和所述第二基板之间形成多个主隔垫 物以支撑二者；其中，所述显示面板被划分为多个子像素单元，所述多个子像素单元包括多个第一子像素单元和多个第二子像素单元，所述多个第一子像素单元与所述主隔垫物中任一相邻且设置成单畴结构，所述多个第二子像素单元与所述主隔垫物中任一不相邻且设置成多畴结构。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本公开的一些实施例，而非对本公开的限制。
图1为一种显示面板的截面结构示意图；
图2为图1中显示面板的俯视结构示意图；
图3为另一种显示面板的俯视结构示意图；
图4为本公开一实施例提供的一种显示面板的俯视结构示意图；
图5为本公开另一实施例提供的一种显示面板的俯视结构示意图；
图6为图5中第一子像素单元的局部结构放大示意图；以及
图7为图5中第二子像素单元的局部结构放大示意图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
图1为一种显示面板的截面结构示意图，例如，该显示面板包括第一基板10和第二基板11，以及填充在该第一基板10和第二基板11之间的液晶12。该第一基板10和第二基板11例如通过密封胶彼此结合在一起以形成液晶盒。图2为图1中显示面板的俯视结构示意图，该显示面板中的第一基板10例如为彩膜基板，该彩膜基板主要包括黑矩阵101、红色滤光块102、绿色滤光块103、蓝色滤光块104和柱状隔垫物105，相应地第二基板例如为阵列基板。柱状隔垫物105分为主柱状隔垫物1051和辅助柱状隔垫物1052。在第一基板和第二基板正常对盒的状态下，起支撑作用的是主柱状隔垫物1051，当显示面板受到较大的外力挤压作用时，辅助隔垫物1052也可以起到支撑作用。该第一基板10和第二基板11在与液晶接触的表面上涂敷配向膜以对液晶分子进行预配向。需要说明的是，在图2中，为了清晰的示出红色滤光块、绿色滤光块和蓝色滤光块，示例性地，将黑矩阵的宽度设置的很大，实际上黑矩阵覆盖区域的面积要小于像素区域的面积。下述图3-图5中将黑矩阵的宽度设置的很大也是相同的考虑。
为了避免显示面板受到较大的外力挤压作用时主柱状隔垫物1051对周边配向膜造成破坏而导致漏光的问题，图3提供了另一种显示面板的俯视结构示意图，如图3所示，与主柱状隔垫物1051相邻的像素单元在第一基板上的正投影与黑矩阵在第一基板上的正投影存在重叠部分，即主柱状隔垫物1051周边的黑矩阵101的遮挡范围要比辅助柱状隔垫物1052周边的黑矩阵101的遮挡范围大，从而导致一部分黑矩阵101覆盖了与主柱状隔垫物1051相邻的子像素单元。因此，主柱状隔垫物1051周边的子像素单元的开口率要比辅助柱状隔垫物1052周边的子像素单元的开口率小，相应地，当显示相同的内容时，主柱状隔垫物1051周边的子像素单元的亮度要比辅助柱状隔垫物1052周边的子像素单元的亮度低。为了保证液晶盒厚的均一性，主柱状隔垫物呈周期性排布，从而这种亮度差异也呈周期性排布，这样亮度偏低的子像素单元将连成线，最终在显示彩色画面或显示单色画面时形成暗条纹不良，从而影响显示画面的品质。例如，当显示面板的分辨率小于250PPI(Pixels Per Inch)时，主柱状隔垫物附近的双畴子像素单元的亮度低于与主柱状隔垫物1051中任一不相邻的双畴子像素单元的亮度的88％时，就会在显示单色画面时出现明显的暗条纹；主柱状隔垫物附近的双畴子像素单元的亮度低于与主柱状隔垫物1051中任一不相邻的双畴子像素单 元的亮度的80％时，就会在显示彩色画面时出现明显的暗条纹。
如上所述，当液晶显示面板受到外力挤压或者拍击时，隔垫物在第一基板和第二基板之间发生位移，对周边配向膜造成破坏导致漏光，从而导致在显示画面时因局部像素亮度差异而产生的条纹不良，画面品质不佳。针对该问题，本公开的实施例提供了一种显示面板，该显示面板被划分为多个子像素单元，该显示面板包括相对设置的第一基板和第二基板，设置在第一基板和第二基板之间以支撑二者的多个主隔垫物，多个子像素单元包括多个第一子像素单元和多个第二子像素单元，多个第一子像素单元与主隔垫物中任一相邻且设置成单畴结构，多个第二子像素单元与主隔垫物中任一不相邻且设置成多畴结构。
例如，多畴结构的子像素单元具有弯折区域，然而在该弯折区域内电场混乱，该区域可能表现为暗区，液晶对光的利用率较低；单畴像素没有相应的暗区，单畴像素区域处的液晶对光的利用率比多畴像素区域处的液晶对光的利用率高，从而光的透过率相应的也高。
本公开的实施例通过将主隔垫物周边的子像素单元设计成单畴结构来提高这些子像素单元的透过率，进而提升相应的子像素单元的亮度，来弥补因开口率降低而导致的亮度损失，从而有效防止彩色画面显示或单色画面显示时因局部像素亮度差异而导致的条纹不良，画面品质不佳的问题。
本公开至少一实施例提供一种显示面板，该显示面板包括相对设置的第一基板和第二基板。第一基板和第二基板通过密封胶(未示出)对盒形成液晶盒，液晶盒内灌注有液晶。例如，图4为本公开一实施例提供的一种显示面板的俯视结构示意图，在第一基板和第二基板(图中未示出)之间设置有多个主隔垫物204以支撑该第一基板和第二基板。该显示面板被划分为多个子像素单元，多个子像素单元包括多个第一子像素单元202和多个第二子像素单元203，多个第一子像素单元202与主隔垫物204中任一相邻且设置成单畴结构，多个第二子像素单元203与主隔垫物204中任一不相邻且设置成多畴结构，例如，如图4所示，第二子像素单元203为四畴结构。本公开的实施例中，可以通过多种结构以实现子像素单元中的多畴结构，且多畴结构可以包括2个或更多的畴区域。
例如，第一基板为彩膜基板，彩膜基板包括第一衬底基板、黑矩阵、彩色滤光层以及平坦层等。当主隔垫物设置在第一基板(彩膜基板)上时， 多个主隔垫物设置在黑矩阵上，彩色滤光层被黑矩阵划分为多个呈阵列排布的彩色滤光块，每个彩色滤光块对应一个子像素单元。
例如，第二基板为阵列基板，阵列基板包括第二衬底基板、数据线金属电极、数据线金属电极绝缘层、扫描线金属电极、扫描线金属电极绝缘层、像素电极等。
例如，黑矩阵形成于彩膜基板的像素区域与像素区域之间的非显示区域，遮挡非显示区域的光透过，且一般黑矩阵正对着阵列基板上的信号线设置，该信号线包括数据线以及扫描线。
例如，主隔垫物204为柱状隔垫物(PS,Post Spacer)或者球状隔垫物(BS,Ball Spacer)，主隔垫物204形成于第一基板或第二基板上，或者同时形成于第一基板和第二基板上。以下以主隔垫物设置于第一基板上且第一基板为彩膜基板为例加以说明。
例如，柱状隔垫物的材料包括透明的紫外光硬化丙烯树脂类材料，形成球状隔垫物的本体材料包括密胺树脂、尿素树脂、聚苯乙烯树脂等。
例如，以主隔垫物为柱状隔垫物为例加以说明，主隔垫物采用正性光刻胶材料通过曝光显影等工艺形成于彩膜基板上。正性光刻胶材料，指的是涂布后的光刻胶材料经过曝光显影后，被光照射到的区域能够被显影液洗掉。其过程为形成黑矩阵、色阻和彩膜基板侧平坦层等之后，涂布一层正性光刻胶材料，通过刻画有图案的掩模板，经过一次曝光显影，形成主隔垫物。例如，也可以通过半色调或者灰色调掩模板，经过一次曝光显影形成主隔垫物以及辅助隔垫物。例如，主隔垫物正对于彩膜基板上的黑矩阵设置，主隔垫物设置于黑矩阵的下方。
例如，该第一子像素单元202包括红色子像素单元、绿色子像素单元和蓝色子像素单元，该第二子像素单元203也包括红色子像素单元、绿色子像素单元和蓝色子像素单元。
例如，如图4所示，第一子像素单元202包括设置在第二基板上的第一电极206，第一电极为狭缝状电极，第一电极206具有沿同一个方向延伸的狭缝；第二子像素单元包括设置在第二基板上的第二电极207，第二电极为狭缝状电极，第二电极207具有至少两个沿不同方向延伸的狭缝，例如，在图4中，第二电极为四畴电极结构，所对应的第二子像素单元具有四畴结构。
例如，图5为本公开另一实施例提供的一种显示面板的俯视结构示意图。如图5所示，第一电极206具有沿同一个方向延伸的狭缝，第一电极206为单畴结构；第二电极207具有双畴结构，图7为图5中第二子像素单元的放大图，如图7所示，第二电极207包括沿第一方向延伸的第一狭缝2071和沿第二方向延伸的第二狭缝2072。在通电状态下，第一子像素单元中的液晶分子按照同一方向倾斜排列，第二子像素单元中的液晶分子按照两个不同的方向倾斜排列。
例如，图6为图5中第一子像素单元的局部结构放大示意图，第一子像素单元中的第一电极具有狭缝，该第一电极的狭缝的方向与子像素单元的行方向所呈的角度θ1为80°～95°，例如，85°、90°以及95°。
例如，如图7所示，对于第二子像素单元，第一方向相对于子像素单元的行方向形成的角度与第二方向相对于子像素单元的行方向形成的角度相等。即，双畴结构的第二子像素单元中的第一畴和第二畴以角平分线为轴形成轴对称图形。第一方向相对于子像素单元的行方向形成的角度与第二方向相对于子像素单元的行方向形成的角度也可以彼此不相等。
例如，如图7所示，第一方向相对于子像素单元的行方向所呈的角度θ2为70°～85°。例如，70°、75°、80°以及85°。
需要说明的是，在图4和图5所示的结构中，第二子像素单元分别采用的双畴结构和四畴结构只是举例说明，并不是对本公开的限制，本公开的实施例并不限于图4和图5所示的结构，第二电极还可以是三畴、五畴等多畴结构。
例如，第一子像素单元202还包括设置在第二基板上的第三电极，第二子像素单元203还包括设置在第二基板上的第四电极。
例如，该第三电极和该第四电极可以为板状电极结构，或者为分别与第一电极和第二电极相对应的狭缝状结构。
例如，第一电极和第二电极为像素电极，第三电极和第四电极为公共电极，或者，第一电极和所述第二电极为公共电极，第三电极和第四电极为像素电极。
例如，当第一电极和第二电极为像素电极，第三电极和第四电极为公共电极时，取代第一电极的像素电极可以包括沿同一个方向延伸的狭缝，取代第二电极的像素电极可以包括沿第一方向延伸的第一狭缝和沿第二方 向延伸的第二狭缝，公共电极可以为板状电极或狭缝状电极。
例如，当第一电极和所述第二电极为公共电极，第三电极和第四电极为像素电极时，取代第一电极的公共电极可以包括沿同一个方向延伸的狭缝，取代第二电极的公共电极可以包括沿第一方向延伸的第一狭缝和沿第二方向延伸的第二狭缝，像素电极可以为板状电极或狭缝状电极。
例如，取代第二电极的像素电极或公共电极可以在每相邻的两行子像素单元区域内分别形成方向不同的第一畴液晶电场和第二畴液晶电场，即每相邻的两行子像素单元区域内形成的液晶电场的方向间呈一定夹角，进而，每相邻的两行亚像素单元区域内的出光方向可以互相补偿，从而该双畴像素结构的混光效果更好，色偏更小。
例如，形成第一电极、第二电极、第三电极以及第四电极的材料可以为透明导电材料，例如，氧化铟锡(ITO)和氧化铟锌(IZO)。
例如，该显示面板还包括填充在第一基板和第二基板之间的液晶。例如，根据需要，该液晶为胆甾相液晶、向列相液晶或近晶相液晶。
例如，该显示面板还包括涂覆在第一基板和第二基板至少之一的表面上与液晶接触的配向膜。例如，该配向膜的材料包括聚苯乙烯及其衍生物、聚乙烯醇、聚酯、环氧树脂、聚氨酯、聚硅烷和聚酰亚胺等；该配向膜在涂敷之后可以进行摩擦取向或光取向操作，从而使得该配向膜可以对液晶分子进行预取向操作。
本公开的实施例中的显示面板可以广泛地应用于FFS(Fringe Field Switching，边缘场开关)型液晶显示器、ADS(AD-SDS，Advanced-Super Dimensional Switching，高级超维场开关，简称为ADS)型、以及平面开关(IPS，In-plane Switching)型液晶显示器中。ADS型液晶显示器和FFS型液晶显示器的公共电极和像素电极均可以设置在第二基板(例如阵列基板)上。FFS技术主要是通过在同一平面内像素电极间产生边缘电场，使电极间以及电极正上方的取向液晶分子在平面方向发生旋转转换，从而提高液晶层的透光效率，ADS技术主要是通过同一平面内像素电极边缘所产生的平行电场以及像素电极层与公共电极层间产生的纵向电场形成多维电场，使液晶盒内像素电极间、电极正上方所有取向液晶分子都能够产生旋转转换，从而提高平面取向系液晶工作效率并增大透光效率。
例如，多个主隔垫物204呈周期性排列，主隔垫物周期性排列能够使 得液晶的盒厚更均一，有利于提高显示质量。
例如，如图5所示，本公开的实施例提供的显示面板还包括与主隔垫物204间隔设置的多个辅助隔垫物205，辅助隔垫物205的高度低于主隔垫物204的高度，在通常情况下，主隔垫物204起到支撑作用，当液晶盒受到外界的挤压作用力太大以至于辅助隔垫物205抵靠在与之相对的基板上时，辅助隔垫物即可以起到支撑的作用。
例如，如图5所示，第一子像素单元202在第一基板上的正投影与黑矩阵201在第一基板上的正投影部分重叠。主隔垫物204的周边覆盖的黑矩阵201的面积大于辅助隔垫物205的周边覆盖的黑矩阵201的面积。邻近主隔垫物204位置处的彩色滤光块与其他彩色滤光块相比具有削角结构(彩色滤光块与主隔垫物邻近的角被黑矩阵覆盖以形成该削角结构)，且该削角结构朝向主隔垫物204，这样相当于拉开了第一子像素单元202与主隔垫物204之间的距离，这样可以减小当外界挤压作用力太大时破坏配向膜带来的漏光的风险，但这样会导致主隔垫物204周边的第一子像素单元202的开口率比辅助隔垫物205周边的第二子像素单元203的开口率要小，当第一子像素单元和第二子像素单元被打开时，主隔垫物204周边的第一子像素单元202的亮度要比辅助隔垫物205周边的第二子像素单元203的亮度低。如图5所示，当邻近主隔垫物204位置处的第一子像素单元202设计成单畴像素结构时，可以提高第一子像素单元202的透过率，进而可以提升相应的第一子像素单元202的亮度，来弥补因开口率降低而导致的亮度损失，从而可以有效的防止彩色画面或单色画面显示时因局部像素亮度差异导致的条纹不良，进而提升画面显示的品质。
本公开至少一实施例还提供一种显示装置，该显示装置包括上述任一显示面板，显示装置中的其他结构可参见常规设计。该显示装置例如可以为手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
本公开至少一实施例还提供一种显示面板的制备方法，包括：提供第一基板和第二基板，在第一基板和第二基板之间形成多个主隔垫物以支撑二者，显示面板被划分为多个子像素单元，多个子像素单元包括多个第一子像素单元和多个第二子像素单元，多个第一子像素单元与主隔垫物中任 一相邻且设置成单畴结构，多个第二子像素单元与主隔垫物中任一不相邻且设置成多畴结构。
例如，第一基板为彩膜基板，彩膜基板包括第一衬底基板、黑矩阵、彩色滤光层以及平坦层等。当主隔垫物设置在第一基板(彩膜基板)上时，多个主隔垫物设置在黑矩阵上，彩色滤光层被黑矩阵划分为多个呈阵列排布的彩色滤光块，每个彩色滤光块对应一个子像素单元。
例如，第二基板为阵列基板，阵列基板包括第二衬底基板、数据线金属电极、数据线金属电极绝缘层、扫描线金属电极、扫描线金属电极绝缘层、像素电极等。
例如，主隔垫物为柱状隔垫物，主隔垫物采用正性光刻胶材料通过曝光显影等工艺形成于彩膜基板上。正性光刻胶材料，指的是涂布后的光刻胶材料经过曝光显影后，被光照射到的区域能够被显影液洗掉。其过程为形成黑矩阵、色阻和彩膜基板侧平坦层等之后，涂布一层正性光刻胶材料，通过刻画有图案的掩模板，经过一次曝光显影，形成主隔垫物。例如，也可以通过半色调或者灰色调掩模板，经过一次曝光显影形成主隔垫物和辅助隔垫物。例如，主隔垫物正对于彩膜基板上的黑矩阵设置，主隔垫物设置于黑矩阵的下方。
例如，第一子像素单元包括设置在第二基板上的第一电极，第一电极具有沿同一个方向延伸的狭缝，第二子像素单元包括设置在第二基板上的第二电极，第二电极具有至少两个沿不同方向延伸的狭缝。
例如，第一子像素单元还包括设置在第二基板上的第三电极，第二子像素单元还包括设置在第二基板上的第四电极。
例如，该第三电极和该第四电极可以为板状电极结构，或者为分别与第一电极和第二电极相对应的狭缝状结构。
例如，第一电极和第二电极为像素电极，第三电极和第四电极为公共电极，或者，第一电极和所述第二电极为公共电极，第三电极和第四电极为像素电极。
例如，该制备方法还包括形成与主隔垫物相互间隔的多个辅助隔垫物，且辅助隔垫物的高度低于主隔垫物的高度。辅助隔垫物的制备方法可以参见上述主隔垫物的制备方法。
本公开的实施例提供的显示面板及其制备方法以及显示装置，至少具 有以下有益效果：
(1)在本公开至少一实施例提供的显示面板中，该显示面板通过将主柱状隔垫物周边的第一子像素单元设计成单畴结构来提高第一子像素单元的透过率；
(2)本公开至少一实施例提供的显示面板可以提升第一子像素单元的亮度，来弥补因开口率降低导致的亮度损失；
(3)本公开至少一实施例提供的显示面板可以有效防止彩色画面显示或单色画面显示时因局部像素亮度差异而导致的条纹不良，画面品质不佳的问题。
有以下几点需要说明：
(1)本公开实施例附图只涉及到与本公开实施例涉及到的结构，其他结构可参考通常设计。
(2)为了清晰起见，在用于描述本公开的实施例的附图中，层或区域的厚度被放大或缩小，即这些附图并非按照实际的比例绘制。可以理解，当诸如层、膜、区域或基板之类的元件被称作位于另一元件“上”或“下”时，该元件可以“直接”位于另一元件“上”或“下”，或者可以存在中间元件。
(3)在不冲突的情况下，本公开的实施例及实施例中的特征可以相互组合以得到新的实施例。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，本公开的保护范围应以所述权利要求的保护范围为准。
本申请要求于2016年12月1日递交的中国专利申请第201611091735.5号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (14)

  1. 一种显示面板，划分为多个子像素单元，包括：
    相对设置的第一基板和第二基板，
    设置在所述第一基板和所述第二基板之间以支撑二者的多个主隔垫物；
    其中，所述多个子像素单元包括多个第一子像素单元和多个第二子像素单元，所述多个第一子像素单元与所述主隔垫物中任一相邻且设置成单畴结构，所述多个第二子像素单元与所述主隔垫物中任一不相邻且设置成多畴结构。
  2. 根据权利要求1所述的显示面板，其中，所述第一子像素单元包括设置在所述第二基板上的第一电极，所述第一电极具有沿同一个方向延伸的狭缝；所述第二子像素单元包括设置在所述第二基板上的第二电极，所述第二电极具有至少两个沿不同方向延伸的狭缝。
  3. 根据权利要求2所述的显示面板，其中，所述第二电极具有双畴结构，所述第二电极包括沿第一方向延伸的第一狭缝和沿第二方向延伸的第二狭缝，所述第一方向相对于所述子像素单元的行方向形成的角度与所述第二方向相对于所述子像素单元的行方向形成的角度相等或不等。
  4. 根据权利要求3所述的显示面板，其中，所述第一方向相对于所述子像素单元的行方向所呈的角度为70°～85°。
  5. 根据权利要求2-4中任一项所述的显示面板，其中，所述第一子像素单元还包括设置在所述第二基板上的第三电极；所述第二子像素单元还包括设置在所述第二基板上的第四电极。
  6. 根据权利要求5所述的显示面板，其中，所述第一电极和所述第二电极为像素电极，所述第三电极和所述第四电极为公共电极，或者，所述第一电极和所述第二电极为公共电极，所述第三电极和所述第四电极为像素电极。
  7. 根据权利要求1-6中任一项所述的显示面板，其中，多个所述主隔垫物呈周期性排列。
  8. 根据权利要求1-6中任一项所述的显示面板，还包括与所述主隔垫物间隔设置的多个辅助隔垫物，所述辅助隔垫物的高度低于所述主隔垫物 的高度。
  9. 根据权利要求1-8中任一项所述的显示面板，其中，所述第一基板上还设置有彩色滤光层和黑矩阵，多个所述主隔垫物设置在所述黑矩阵上，所述彩色滤光层被所述黑矩阵划分为多个呈阵列排布的彩色滤光块，每个所述彩色滤光块对应一个所述子像素单元。
  10. 根据权利要求9所述的显示面板，其中，所述第一子像素单元在所述第一基板上的正投影与所述黑矩阵在所述第一基板上的正投影部分重叠。
  11. 根据权利要求6-10中任一项所述的显示面板，还包括填充在所述第一基板和所述第二基板之间的液晶。
  12. 根据权利要求11所述的显示面板，还包括涂覆在所述第一基板和所述第二基板至少之一的表面上与所述液晶接触的配向膜。
  13. 一种显示装置，包括权利要求1-12中任一项所述的显示面板。
  14. 一种显示面板的制备方法，包括：
    提供第一基板和第二基板；
    在所述第一基板和所述第二基板之间形成多个主隔垫物以支撑二者；
    其中，所述显示面板被划分为多个子像素单元，所述多个子像素单元包括多个第一子像素单元和多个第二子像素单元，所述多个第一子像素单元与所述主隔垫物中任一相邻且设置成单畴结构，所述多个第二子像素单元与所述主隔垫物中任一不相邻且设置成多畴结构。
PCT/CN2017/096205 2016-12-01 2017-08-07 显示面板及其制备方法、显示装置 WO2018099122A1 (zh)

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