WO2024020729A9 - 显示面板及其制作方法、显示装置 - Google Patents

显示面板及其制作方法、显示装置 Download PDF

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Publication number
WO2024020729A9
WO2024020729A9 PCT/CN2022/107645 CN2022107645W WO2024020729A9 WO 2024020729 A9 WO2024020729 A9 WO 2024020729A9 CN 2022107645 W CN2022107645 W CN 2022107645W WO 2024020729 A9 WO2024020729 A9 WO 2024020729A9
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WIPO (PCT)
Prior art keywords
spacer
substrate
layer
display panel
column
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PCT/CN2022/107645
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English (en)
French (fr)
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WO2024020729A1 (zh
Inventor
周鑫
刘家庆
张伟
高吉磊
李超
马亮
王喜鹏
许本志
张良维
张星
张永刚
Original Assignee
京东方科技集团股份有限公司
合肥京东方显示技术有限公司
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Application filed by 京东方科技集团股份有限公司, 合肥京东方显示技术有限公司 filed Critical 京东方科技集团股份有限公司
Priority to PCT/CN2022/107645 priority Critical patent/WO2024020729A1/zh
Priority to CN202280002346.8A priority patent/CN117813545A/zh
Publication of WO2024020729A1 publication Critical patent/WO2024020729A1/zh
Publication of WO2024020729A9 publication Critical patent/WO2024020729A9/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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors

Definitions

  • the present disclosure relates to the field of display technology, and in particular to a display panel and a manufacturing method thereof, and a display device.
  • the liquid crystal display panel is formed by filling liquid crystal between an array substrate and a color film substrate and assembling them.
  • a spacer is usually arranged between the array substrate and the assembling substrate.
  • Embodiments of the present disclosure provide a display panel and a manufacturing method thereof, and a display device.
  • an embodiment of the present disclosure provides a display panel, comprising an array substrate and a color filter substrate arranged opposite to each other, wherein:
  • the color filter substrate comprises a first substrate, a plurality of spacer columns and a plurality of color resist layers, wherein the spacer columns and the color resist layers are both arranged on a side of the first substrate facing the array substrate, and the first substrate comprises a plurality of pixel regions and a spacing region between adjacent pixel regions; the spacer columns are located in the spacing region, and the color resist layer is arranged in each of the pixel regions;
  • the spacer column includes at least one spacer layer, and the material of each spacer layer is the same as the material of the color resist layer in one of the pixel regions;
  • the array substrate comprises a second substrate and a support layer, wherein the support layer is arranged on a side of the second substrate facing the color filter substrate, the support layer comprises a body layer and a plurality of convex portions, the convex portions are arranged on a side of the body layer away from the second substrate, and at least one of the convex portions and one of the spacer columns are arranged opposite to each other;
  • At least one of the spacer posts is in direct contact with the protrusion.
  • the hardness of the protrusion is less than the hardness of the spacer layer.
  • the material of the protrusion includes an organic material.
  • the main body layer and the protrusion are an integral structure.
  • a ratio of the height of the spacer column to the height of the protrusion is 0.5 to 1.3.
  • the color filter substrate further includes a black matrix located in the spacing area
  • the spacer column is located at a side of the black matrix away from the first substrate, and the orthographic projection of the black matrix on the first substrate covers the orthographic projection of the spacer column on the first substrate.
  • each of the spacer columns is disposed opposite to one of the protrusions
  • the plurality of spacer columns include at least one main spacer column and a plurality of auxiliary spacer columns;
  • Each of the main spacer columns is in direct contact with the protrusion opposite thereto;
  • the color filter substrate includes color resist layers of N colors; each of the spacer layers corresponds to a color resist layer of one color, and different spacer layers in the same spacer column correspond to color resist layers of different colors; each spacer layer has the same material and thickness as the corresponding color resist layer;
  • the main spacer column includes N spacer layers, and the auxiliary spacer column includes M spacer layers, wherein M and N are both positive integers, and M ⁇ N.
  • the orthographic projection areas of the N spacer layers in the main spacer column on the first substrate are the same.
  • the spacer column comprises a plurality of the spacer layers.
  • the areas of the orthographic projections of the plurality of spacer layers in at least one of the spacer columns on the first substrate decrease sequentially in a direction away from the black matrix.
  • the width ratio of the spacer layer closest to the black matrix in the spacer column to the black matrix is between 0.5 and 1; in the spacer column, the area ratio of the spacer layer farthest from the black matrix to the spacer layer closest to the black matrix is between 1/6 and 1/2.
  • At least two adjacent color-resist layers of the same color are connected to form an integrated structure.
  • At least one of the spacer layers and the color resist layer adjacent thereto are connected to form an integral structure.
  • the array substrate further comprises a plurality of gate lines and a plurality of data lines arranged on the second substrate, the plurality of gate lines and the plurality of data lines are arranged crosswise, and an orthographic projection of each of the plurality of gate lines on the first substrate and an orthographic projection of each of the plurality of data lines on the first substrate are both located in the spacing area;
  • An orthographic projection of at least one of the spacer columns on the first substrate is located within a range of an orthographic projection of the gate line on the first substrate.
  • the array substrate further includes a thin film transistor and a pixel electrode
  • the thin film transistor is located between the second substrate and the supporting layer;
  • the pixel electrode is located on a side of the support layer away from the second substrate, and is connected to the drain electrode of the thin film transistor through a via hole on the body layer.
  • an orthographic projection of the spacer column on the first substrate does not overlap with an orthographic projection of the thin film transistor on the first substrate.
  • an embodiment of the present disclosure provides a method for manufacturing a display panel, including:
  • the first substrate comprising a plurality of pixel regions and a spacing region between adjacent pixel regions;
  • a plurality of the spacer columns are formed in the spacing area of the first substrate, and the color resist layer is formed in each pixel area of the first substrate, wherein each of the spacer columns includes at least one spacer layer, and each spacer layer is formed synchronously with one of the color resist layers;
  • the support layer includes a body layer and a plurality of protrusions, wherein the protrusions are located on a side of the body layer away from the second substrate, and at least one protrusion and one spacer column are arranged opposite to each other;
  • the second substrate is aligned with the first substrate so that at least one of the spacer pillars is in direct contact with the protrusion.
  • the step of forming a support layer on the second substrate comprises:
  • the support material layer is patterned to form the body layer and a plurality of protrusions on the body layer.
  • an embodiment of the present disclosure provides a display device, comprising the display panel described in the first aspect.
  • FIG. 1 is a schematic structural diagram of a display panel provided in an embodiment of the present disclosure.
  • FIG. 2 is a schematic diagram of the structure of another display panel provided by an embodiment of the present disclosure.
  • FIG. 3A is a schematic diagram of the structure of another display panel provided by an embodiment of the present disclosure.
  • FIG. 3B is a schematic diagram of the structure of another display panel provided by an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of the structure of another display panel provided by an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of the structure of another display panel provided by an embodiment of the present disclosure.
  • FIG. 6A is a schematic plan view of a display panel provided in an embodiment of the present disclosure.
  • FIG. 6B is a schematic plan view of a display panel provided in an embodiment of the present disclosure.
  • FIG6C is a schematic cross-sectional view along line AA’ in FIG6B .
  • FIG6D is a schematic plan view of a display panel provided in an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of the structure of another display panel provided by an embodiment of the present disclosure.
  • FIG. 8 is a schematic plan view of another display panel provided by an embodiment of the present disclosure.
  • FIG. 9 is a schematic flow chart of a method for manufacturing a display panel provided in an embodiment of the present disclosure.
  • TFT-LCD Thin Film Transistor Liquid Crystal Display
  • the liquid crystal display panel includes a color filter substrate and an array substrate that are arranged opposite to each other, and a liquid crystal layer located between the two.
  • the production of the color filter substrate usually includes the following production processes: black matrix layer-blue color resistance layer-green color resistance layer-red color resistance layer-protective glue (Over Coating, OC)-spacer (Post Spacer, PS).
  • the spacer is used to support the display panel after the color filter substrate and the array substrate are assembled. If the spacer can be formed synchronously with other structures during the production process of the color filter substrate and its production process can be streamlined, the production efficiency of the display panel will be greatly improved.
  • the spacer can be formed by superimposing color resistance.
  • the color filter substrate includes a red color resistance layer, a blue color resistance layer and a green color resistance layer
  • the spacer includes three spacer layers. The three spacer layers are formed synchronously with the red color resistance layer, the green color resistance layer and the blue color resistance layer, respectively, so as to omit the separate manufacturing process of the spacer.
  • the stacking height of the spacer is limited, and the step difference requirements between spacers of different heights among multiple spacers cannot be met; and the elastic requirements of the spacer cannot be met, resulting in an unsatisfactory support effect of the spacer, and ultimately the quality of the box alignment between the color filter substrate and the array substrate cannot be guaranteed.
  • the embodiments of the present disclosure provide a display panel that can simplify the manufacturing process of the color filter substrate and enable the spacer to meet the requirements of the alignment between the color filter substrate and the array substrate in the display panel.
  • FIG1 is a schematic diagram of the structure of a display panel provided by an embodiment of the present disclosure.
  • the display panel includes a color film substrate 1 and an array substrate 2 that are arranged opposite to each other, and a liquid crystal layer (not shown) located therebetween.
  • the color filter substrate 1 includes a first substrate 11, a plurality of spacer columns 12 and a plurality of color resist layers 13.
  • the spacer columns 12 and the color resist layers 13 are both arranged on the side of the first substrate 11 facing the array substrate 2.
  • the first substrate 11 includes a display area, which includes a plurality of pixel areas and a spacing area between adjacent pixel areas.
  • the spacer columns 12 are located in the spacing area, and each pixel area is provided with a color resist layer 13.
  • Each spacer column 12 includes at least one spacer layer, and the material of each spacer layer is the same as the material of the color resist layer 13 in one of the pixel areas.
  • the array substrate 2 includes a second substrate 21 and a supporting layer 22.
  • the supporting layer 22 is arranged on the side of the second substrate 21 facing the color film substrate 1.
  • the supporting layer 22 includes a main body layer 221 and a plurality of protrusions 222.
  • the protrusions 222 are located on the side of the main body layer 221 away from the second substrate 21. At least one protrusion 222 is arranged opposite to a spacer column 12; at least one spacer column 12 is in direct contact with the protrusion 222, thereby being supported on the protrusion 222.
  • each spacer layer in the spacer column 12 may be the same as the material of the color resist layer 13 in one of the pixel areas. In other words, each spacer layer may be formed simultaneously with one of the blue color resist layer, the green color resist layer, and the red color resist layer.
  • the spacer column 12 includes at least one spacer layer, and the material of each spacer layer is the same as the material of the color resist layer 13 of one pixel area, so each spacer layer can be made synchronously with the color resist layer 13 of one pixel area, omitting the separate production step of the spacer column 12; in addition, at least one spacer column 12 is supported on the protrusion 222, which makes up for the defect of the spacer column 12 being limited in height due to the limited types of the color resist layer 13 in the display area.
  • the spacer column 12 and the protrusion 222 of the support layer 22 are combined to form a support structure, so that the display panel can be stably supported.
  • the hardness of the protrusion 222 is less than the hardness of the spacer layer, so that the support structure formed by the spacer column 12 and the support layer 22 can provide sufficient support force and meet the elastic requirements of the support structure.
  • hardness is usually used to characterize the ability of an object to resist hard objects pressing into its surface. The higher the hardness, the higher the object's ability to resist deformation.
  • the material of the protrusion 222 includes an organic material, such as a resin material, so that when the spacer column 12 is supported on the protrusion 222, the elasticity of the support structure is improved, thereby improving the supporting effect of the support structure.
  • the main body layer 221 and the protrusion 222 are an integral structure, that is, during the manufacturing process of the support layer 22, the main body layer 221 and the protrusion 222 can be formed simultaneously by patterning the same material layer.
  • the ratio of the height of the spacer column to the height of the protrusion is 0.5 to 1.3, so as to ensure that the support structure can provide a stable support force and has a certain elasticity.
  • the ratio of the height of the spacer column to the height of the protrusion is 0.5 or 0.8 or 1 or 1.3.
  • the height h1 of the convex portion 222 is 1.4-1.6 ⁇ m.
  • the height h1 of the convex portion 222 is 1.5 ⁇ m.
  • the specific step difference range is not limited in the embodiment of the present disclosure. It should be noted that the height h1 of the convex portion 222 is the height in the natural state without extrusion.
  • the color filter substrate 1 further includes a black matrix 14, which is located in the spacing area and can prevent crosstalk between different pixel areas.
  • the spacer columns 12 are located on the side of the black matrix 14 away from the first substrate 11, and the orthographic projection of the black matrix 14 on the first substrate 11 covers the orthographic projection of the spacer columns 12 on the first substrate 11, so as to prevent the spacer columns 12 from affecting the display effect.
  • each spacer column 12 is disposed opposite to a convex portion 222; the plurality of spacer columns 12 on the color filter substrate 1 include at least one main spacer column 121 and a plurality of auxiliary spacer columns 122. As shown in FIG1 , each main spacer column 121 is in direct contact with the convex portion 222 opposite to it, and each auxiliary spacer column 122 is spaced apart from the convex portion 222 opposite to it.
  • the height h2 of the main spacer column 121 is 1.5 to 1.85 ⁇ m
  • the height h3 of the auxiliary spacer column 122 is 0.8 to 1.4 ⁇ m.
  • the height h2 of the main spacer column 121 is 1.82 ⁇ m
  • the height h3 of the auxiliary spacer column 122 is 1.36 ⁇ m
  • the step difference between the main spacer column 121 and the auxiliary spacer column 122 is 0.46 ⁇ m.
  • the height h2 of the main spacer column 121 and the height h3 of the auxiliary spacer column 122 are the heights in the natural state without extrusion.
  • the main spacer columns 121 in the color filter substrate account for 1% to 10% of the total number of the spacer columns 12.
  • the color film substrate 1 includes color resist layers 13 of N colors; each spacer layer corresponds to a spacer layer of one color, and different spacer layers in the same spacer column 12 correspond to color resist layers 13 of different colors; each spacer layer has the same thickness as its corresponding color resist layer 13; the main spacer column 121 includes N spacer layers, and the auxiliary spacer column 122 includes M spacer layers, wherein M and N are both positive integers, and M ⁇ N.
  • FIG. 2 is a structural schematic diagram of another display panel provided by an embodiment of the present disclosure.
  • the color film substrate 1 includes color resist layers of three colors, namely a red color resist layer 13r, a blue color resist layer 13b and a green color resist layer 13g;
  • the main spacer column 121 includes three spacer layers, namely a first spacer layer a1, a second spacer layer a2 and a third spacer layer a3 arranged in sequence along a direction away from the black matrix 14;
  • the auxiliary spacer column 122 includes two spacer layers, namely a fourth spacer layer a4 and a fifth spacer layer a5 arranged in sequence along a direction away from the black matrix 14, and the material and thickness of each of the above spacer layers are the same as the material and thickness of the color resist layer 13 of one of the pixel areas.
  • the three spacer layers in the main spacer column 121 correspond to a color resist layer 13 of one color respectively.
  • the first spacer layer a1 can be the same material and thickness as the blue color resist layer 13b
  • the second spacer layer a2 can be the same material and thickness as the green color resist layer 13g
  • the third spacer layer a3 can be the same material and thickness as the red color resist layer 13r.
  • the order of the above three color resist layers in the main spacer column 121 is not limited.
  • the first spacer layer a1 can also be the same material and thickness as the red color resist layer 13r
  • the second spacer layer a2 can also be the same material and thickness as the blue color resist layer 13b
  • the third spacer layer a3 can be the same material and thickness as the green color resist layer 13g.
  • the two color resist layers 13 included in the auxiliary spacer column 122 that is, the fourth spacer layer a4 can be the same material and thickness as the blue color resist layer 13b
  • the fifth spacer layer a5 can be the same material and thickness as the green color resist layer 13g.
  • the materials of the color resist layers used in the fourth spacer layer a4 and the fifth spacer layer a5 , respectively, and their order in the auxiliary spacer column 122 are also not limited in the embodiment of the present disclosure.
  • the thickness of the red color resist layer 13r may be 2.25 ⁇ m
  • the thickness of the blue color resist layer 13b may be 2.25 ⁇ m
  • the thickness of the green color resist layer 13g may be 2.30 ⁇ m.
  • the above three color resist layers 13 may also have other thicknesses, which is not limited in the present disclosure.
  • the first spacer layer a1 and the fourth spacer layer a4 are both made of the same material with the same thickness as the blue color resist layer 13b, so they can be formed simultaneously with the blue color resist layer 13b in the pixel area;
  • the second spacer layer a2 and the fifth spacer layer a5 are both made of the same material with the same thickness as the green color resist layer 13g, so they can be formed simultaneously with the green color resist layer 13g in the pixel area;
  • the third spacer layer a3 is made of the same material with the same thickness as the red color resist layer 13r, so it can be formed simultaneously with the red color resist layer 13r in the pixel area.
  • N 3 as an example. In other examples, N may also be other values, such as 4.
  • FIG. 3A and 3B are schematic structural diagrams of another display panel provided by an embodiment of the present disclosure.
  • the display panel further includes a frame sealant 31 and a protective layer 32 .
  • the sealing glue 31 is fixedly connected between the color filter substrate 1 and the array substrate 2 to form a ring structure, and the liquid crystal layer is located in the area surrounded by the sealing glue 31 .
  • the protective layer 32 is located on the side of the color filter substrate 1 facing the array substrate, and covers the color resist layer 13, the black matrix 14 and each spacer layer on the color filter substrate 1.
  • the protective layer 32 is an integrated structure, and its material may be OC glue.
  • each spacer column also includes a portion of the protective layer 32 corresponding to the spacer layer; for the auxiliary spacer column, the interval between it and the protrusion 222 means that there is a gap d between the portion of the protective layer 32 corresponding to the spacer layer of the auxiliary spacer column 122 and the protrusion 222.
  • the gap d can be 0.1 to 0.15 ⁇ m, for example, as shown in FIG3A, d is 0.13 ⁇ m.
  • a protective layer 32 can also be provided.
  • an alignment layer (not shown) is provided on the side of the protection layer 32 away from the color filter substrate 1 and the side of the support layer 22 away from the second base 21 to align the liquid crystal molecules in the liquid crystal layer in a certain direction and angle.
  • the thickness of the liquid crystal layer i.e., Cell Gap, CG
  • CG is 3.55 ⁇ m.
  • the main spacer column 121 has a first end surface facing the array substrate 2, and the convex portion 222 has a second end surface facing the color filter substrate 1; the orthographic projection of the first end surface on the first substrate 11 falls within the orthographic projection range of the second end surface on the first substrate 11.
  • the orthographic projection of the second end surface on the first substrate 11 falls within the orthographic projection range of the first end surface on the first substrate 11, so that the first end surface of the main spacer column 121 is squeezed by the second end surface, and forms a concave deformation protruding toward the first substrate 11.
  • pressure is generated between the main spacer column 121 and its corresponding protrusion 222 , and the main spacer column 121 is compressed under the pressure, and its height h2 is compressed from 1.82 ⁇ m in the natural state to 1.49 ⁇ m, thereby forming a deformation of 0.33 ⁇ m, or 18.1%.
  • the first end surface of the main spacer column 121 and the second end surface of the protrusion 222 are different in size, which can provide a more stable supporting force compared to a structure in which the two end surfaces completely overlap.
  • a first limiting groove can be formed on the first end face, so that the second end face of the protrusion 222 is placed in the first limiting groove; or, when the orthographic projection of the first end face on the first substrate 11 falls within the orthographic projection range of the second end face on the first substrate 11, a second limiting groove can be formed on the second end face, so that the first end face of the main spacer column 121 is placed in the second limiting groove.
  • the limiting grooves formed above all refer to the limiting grooves formed in the pressure-free state on the first end face and the second end face, and then when the display panel is subjected to external force, the limiting groove between the main spacer column 121 and the protrusion 222 forms a mutually embedded structure, which can also reduce the misalignment of the main spacer column 121 and the protrusion 222 when the display panel is subjected to force.
  • the main spacer column 121 and its corresponding protrusion 222 can also be designed to be in an extrusion state, thereby improving the stability of the display panel.
  • the areas of the orthographic projections of the plurality of spacer layers in at least one spacer column 12 on the first substrate 11 decrease sequentially in a direction away from the black matrix 14 .
  • FIG4 is a schematic diagram of the structure of another display panel provided by an embodiment of the present disclosure.
  • the orthographic projection of the first spacer layer a1 on the first substrate 11 covers the orthographic projection of the second spacer layer a2 on the first substrate 11, and the orthographic projection of the second spacer layer a2 on the first substrate 11 covers the orthographic projection of the third spacer layer a3 on the first substrate 11.
  • the three spacer layers in the main spacer column 121 can form a step structure.
  • the two spacer layers in the auxiliary spacer column 122 can also form a step structure.
  • the width ratio of the spacer layer closest to the black matrix 14 in the spacer column 12 to the black matrix 14 is between 0.5 and 1; in the same spacer column 12, the area ratio of the spacer layer farthest from the black matrix 14 to the spacer layer closest to the black matrix 14 is between 1/6 and 1/2, thereby improving the support stability of the spacer 12.
  • the width ratio of the first spacer layer a1 to the black matrix 14 is between 0.5 and 1, and the area ratio of the third spacer layer a3 to the first spacer layer a1 is between 1/6 and 1/2; in the auxiliary spacer 122 in FIG4, the width ratio of the fourth spacer layer a4 to the black matrix 14 is between 0.5 and 1, and the area ratio of the fifth spacer layer a5 to the fourth spacer layer a4 is between 1/6 and 1/2.
  • the black matrix 14 is a grid structure, which includes a plurality of first shading strips extending along a first direction and a plurality of second shading strips extending along a second direction.
  • the first direction is the extension direction of the gate line
  • the second extension direction is the extension direction of the data line.
  • the plurality of first shading strips and the plurality of second shading strips cross to form a grid structure.
  • the ratio of the width of its spacer layer to the black matrix 14 refers to the ratio of the size of the spacer layer in the second direction to the size of the first shading strip in the second direction; for the spacer column 12 arranged opposite to the second shading strip, the ratio of the width of its spacer layer to the black matrix 14 refers to the ratio of the size of the spacer layer in the first direction to the size of the second shading strip in the first direction.
  • the three spacer layers in the main spacer column 121 and/or the two spacer layers in the auxiliary spacer column 122 may also be formed into other shapes, such as a structure with a trapezoidal longitudinal section.
  • FIG5 is a schematic diagram of the structure of another display panel provided by an embodiment of the present disclosure.
  • the orthogonal projection areas of the multiple spacer layers in the main spacer column 121 on the first substrate 11 are all the same.
  • each spacer layer on the first substrate 11 may be a circle, a quadrilateral, or other polygons; the above is not limited in the embodiments of the present disclosure.
  • FIG6A is a plan view schematic diagram of a display panel provided by an embodiment of the present disclosure, and FIG6A only illustrates a partial structure of the display panel.
  • the array substrate 2 also includes a plurality of gate lines GL and a plurality of data lines DL arranged on the second substrate 21, the gate lines GL extending along a first direction, and the data lines DL extending along a second direction.
  • the extension of the signal line along a certain direction does not mean that the signal line must be a straight line, but rather generally tends to extend along a certain direction.
  • the plurality of gate lines GL and the plurality of data lines DL are arranged crosswise, and the orthographic projection of each of the plurality of gate lines GL on the first substrate 11 and the orthographic projection of each of the plurality of data lines DL on the first substrate 11 are both located in the spacing area.
  • the materials of the gate line GL and the data line DL are not specifically limited, and the gate line GL and the data line DL may include a single metal layer or multiple metal layers.
  • the data line DL includes a stack of MO/Cu/MO, wherein the thickness of each metal layer is respectively
  • the material of the gate line GL can be Cu, and its thickness can be For example, the Cu thickness can be
  • the spacer column 12 Since the spacer column 12 is part of the supporting structure of the display panel, the larger its orthographic projection on the first substrate 11 is, the better the stability of the supporting structure is; but on the other hand, since the setting of the spacer column 12 will also affect the opening range of the pixel, and thus affect the light output of the display panel, the size of the spacer column 12 will also be subject to corresponding restrictions.
  • the orthographic projection of at least one spacer column 12 on the first substrate 11 is located within the orthographic projection range of the gate line GL on the first substrate 11. That is, within the range of the orthographic projection of the gate line GL on the first substrate 11, the spacer column 12 can increase its size along the extension direction of the gate line GL.
  • At least two adjacent color resist layers 13 of the same color are connected into an integrated structure.
  • the color resist layers in multiple pixel areas are arranged into multiple rows and columns.
  • the row direction can be the first direction mentioned above, and the column direction can be the second direction mentioned above.
  • the color resist layers in the same column have the same color. In this case, at least two color resist layers in the same column are connected into an integrated structure.
  • a plurality of spacer columns 12 are disposed on the color filter substrate, including at least one main spacer column 121 , and the color resist layers adjacent to each main spacer column 121 in the second direction are both blue color resist layers 13 b .
  • the spacer column 12 shown in FIG. 6A can be a main spacer column or an auxiliary spacer column, but no matter whether it is a main spacer column or an auxiliary spacer column, its orthographic projection on the first substrate 11 can be any shape, for example, a quadrilateral, a circle, a semicircle, a triangle, etc., which is not limited in the embodiments of the present disclosure.
  • the orthographic projection of the spacer column 12 on the first substrate 11 is a rectangle, and its long side l and short side w can be 20 ⁇ m and 14 ⁇ m, respectively.
  • the lengths of the two sides of the above rectangle can also be other sizes, which is not limited in the embodiments of the present disclosure.
  • At least one spacer layer and the color resist layer adjacent thereto may be connected to form an integral structure.
  • FIG6B is a plan view of another display panel provided by an embodiment of the present disclosure
  • FIG6C is a cross-sectional view along the AA' line in FIG6B.
  • a blue color resist layer 13b is provided in each of the three pixel areas in the column, and in the two spacer columns between the three blue color resist layers 13b, there is a spacer layer having the same material and thickness as the blue color resist layer 13b. Therefore, the three blue color resist layers 13b in the same column and the two spacer layers having the same material and thickness are formed into an integrated structure.
  • the three green color resist layers 13g in the same column and the two spacer layers having the same material and thickness can also form an integrated structure, and the three red color resist layers 13r in the same column and the two spacer layers having the same material and thickness are formed into an integrated structure.
  • FIG. 6B only shows a pixel group of three rows and three columns, but in actual applications, the number of rows and columns of pixel areas arranged in an array in a display panel is much greater than three.
  • the color resist layer can be of the same color and formed as an integrated structure.
  • the spacer column between adjacent pixel areas has a spacer layer of the same material and thickness as the color resist layer of the pixel area, which can also be formed as an integrated structure with the color resist layer, thereby forming a continuous film layer extending along the column direction.
  • the spacer layer formed as an integral structure with the color-resistance layer may be a spacer layer in the main spacer column 121 or a spacer layer in the auxiliary spacer column 122.
  • the color-resistance layers in the pixel regions in one column are all blue color-resistance layers, and both the main spacer column 121 and the auxiliary spacer column 122 may be disposed between the pixel regions in the column, and the first spacer layer a1 in the main spacer 121 and the fourth spacer layer a4 in the auxiliary spacer column 122 are connected to the blue color-resistance layer as an integral structure.
  • Figure 6D is a plan schematic diagram of another display panel provided by an embodiment of the present disclosure.
  • the data line DL is arranged relative to multiple spacer columns 12, wherein the spacer layers made of the same material in the multiple spacer columns 12 arranged relative to the same data line DL can be connected into an integrated structure.
  • FIG7 is a schematic diagram of the structure of another display panel provided by an embodiment of the present disclosure.
  • the array substrate 2 further includes a thin film transistor 23 and a pixel electrode 24; the thin film transistor 23 is located between the second substrate 21 and the support layer 22; the pixel electrode 24 is located on the side of the support layer 22 away from the second substrate 21, and is connected to the drain of the thin film transistor 23 through a via hole on the body layer 221.
  • the pixel electrode 24 can be made of a transparent material, such as ITO.
  • the thickness of the pixel electrode 24 can be For example, the thickness of the pixel electrode 24 is Of course, the array substrate 2 may also include other structures not shown in the figure, such as a common electrode.
  • FIG8 is a schematic plan view of another display panel provided by an embodiment of the present disclosure.
  • the orthographic projection of the spacer column 12 on the first substrate 11 does not overlap with the orthographic projection of the thin film transistor 23 on the first substrate 11.
  • the pixel electrodes 24 and the color resist layer 13 correspond to each other one by one, that is, the pixel electrodes 24 are arranged in multiple rows and columns, each pixel electrode 24 is connected to a thin film transistor 23, the gates of the thin film transistors 23 connected to the pixel electrodes 24 in the same row are connected to the same gate line GL, and the sources of the two thin film transistors 23 connected to the two adjacent pixel electrodes 24 in the same column are respectively connected to two adjacent data lines DL.
  • the thin film transistors 23 are arranged at the lower left corner and the upper right corner of the pixel electrode 24, and the support structure 20 can be arranged at the upper left corner and the lower right corner of the pixel electrode 24.
  • connection method between multiple pixel electrodes 24 and the thin film transistors 23 can also be other methods.
  • each pixel electrode 24 is connected to a thin film transistor 23, the gates of the thin film transistors 23 connected to the pixel electrodes 24 in the same row are connected to the same gate line GL, and the sources of the thin film transistors 23 connected to the pixel electrodes 24 in the same column are connected to the same data line DL.
  • the thin film transistors 23 are arranged at the upper left corner and the lower left corner of the pixel electrode 24, and the supporting structure 20 can be arranged at the upper right corner and the lower right corner of the pixel electrode.
  • the width of the gate line GL may be the same at various locations, or may be different at different locations as shown in FIG8 .
  • the gate line GL may be appropriately widened at locations corresponding to the support structure 20 or the thin film transistor 23, and the width may be reduced at locations where the support structure 20 and the thin film transistor 23 are not provided.
  • some locations are set wider to reduce their resistance, and on the other hand, some locations are set relatively narrow so as to leave more opening space and improve the display effect of the display panel.
  • FIG. 9 is a schematic flow chart of a method for manufacturing a display panel provided in an embodiment of the present disclosure. As shown in FIG. 9 , the method for manufacturing a display panel includes:
  • each spacer column includes at least one spacer layer, and each spacer layer is formed synchronously with one of the color resist layers.
  • the support layer includes a main body layer and a plurality of protrusions, wherein the protrusions are located on a side of the main body layer away from the second substrate, and at least one protrusion corresponds to a spacer column.
  • the step of forming a support layer on the second substrate in S3 may include:
  • the manufacturing method of the display panel provided by the embodiment of the present disclosure can be manufactured in the same process because the material of each spacer layer in the spacer column is the same as the material of the color-blocking layer in one of the pixel areas, thereby omitting the separate manufacturing step of the spacer column; the spacer column is supported on the convex portion, that is, the spacer column is in direct contact with the convex portion, which makes up for the defect that the height of the spacer column is limited due to the limited types of color-blocking layers in the pixel area; and the main body layer and the multiple convex portions are manufactured and formed in the same process.
  • the display panel formed by the above manufacturing method can not only ensure the supporting effect of the supporting structure composed of the spacer column and the supporting layer, provide sufficient supporting force, but also simplify the manufacturing process of the display panel.
  • An embodiment of the present disclosure further provides a display device, comprising the above-mentioned display panel.
  • the above-mentioned display device can be: electronic paper, mobile phone, tablet computer, television, monitor, notebook computer, digital photo frame, navigator and any other product or component with display function, which is not limited in the present disclosure.

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Abstract

本公开实施例提供一种显示面板及其制作方法、显示装置。显示面板包括相对设置的阵列基板和彩膜基板，其中，彩膜基板包括第一基底、多个隔垫柱和多个色阻层，隔垫柱和色阻层均设置在第一基底朝向阵列基板的一侧，第一基底包括多个像素区和位于相邻像素区之间的间隔区；隔垫柱位于间隔区，每个像素区中均设置有色阻层；隔垫柱包括至少一个隔垫层，每一隔垫层的材料与其中一个像素区中的色阻层的材料相同；阵列基板包括第二基底和支撑层，支撑层设置在第二基底朝向彩膜基板的一侧，支撑层包括本体层和多个凸部，凸部位于本体层远离第二基底的一侧，每一凸部与至少一个隔垫柱相对设置；至少一个隔垫柱支撑在凸部上。

Description

显示面板及其制作方法、显示装置 技术领域
本公开涉及显示技术领域，具体涉及一种显示面板及其制作方法、显示装置。
背景技术
液晶显示面板由阵列基板和彩膜基板之间填充液晶并对盒而成。为了维持液晶显示面板的稳定性和盒厚的均一性，通常在阵列基板与对盒基板之间设置隔垫物。
发明内容
本公开实施例提供一种显示面板及其制作方法、显示装置。
第一方面，本公开实施例提供一种显示面板，包括相对设置的阵列基板和彩膜基板，其中，
所述彩膜基板包括第一基底、多个隔垫柱和多个色阻层，所述隔垫柱和所述色阻层均设置在所述第一基底朝向所述阵列基板的一侧，所述第一基底包括多个像素区和位于相邻像素区之间的间隔区；所述隔垫柱位于所述间隔区，每个所述像素区中均设置有所述色阻层；
所述隔垫柱包括至少一个隔垫层，每一隔垫层的材料与其中一个像素区中的色阻层的材料相同；
所述阵列基板包括第二基底和支撑层，所述支撑层设置在所述第二基底朝向所述彩膜基板的一侧，所述支撑层包括本体层和多个凸部，所述凸部位于所述本体层远离所述第二基底的一侧，至少一个所述凸部和一个所述隔垫柱相对设置；
至少一个所述隔垫柱与所述凸部直接接触。
在一些实施例中，所述凸部的硬度小于所述隔垫层的硬度。
在一些实施例中，所述凸部的材料包括有机材料。
在一些实施例中，所述本体层与所述凸部为一体结构。
在一些实施例中，所述隔垫柱与所述凸部的高度之比为0.5～1.3。
在一些实施例中，所述彩膜基板还包括位于所述间隔区的黑矩阵；
所述隔垫柱位于所述黑矩阵远离所述第一基底的一侧，所述黑矩阵在所述第一基底上的正投影覆盖所述隔垫柱在所述第一基底上的正投影。
在一些实施例中，每一所述隔垫柱均与一个所述凸部相对设置；
所述多个隔垫柱中包括至少一个主隔垫柱和多个辅隔垫柱；
每一所述主隔垫柱均与其相对的所述凸部直接接触；
每一所述辅隔垫柱与其相对的所述凸部之间具有间隔。
在一些实施例中，所述彩膜基板包括N种颜色的色阻层；每个所述隔垫层对应一种颜色的色阻层，同一个隔垫柱中不同的隔垫层对应不同颜色的色阻层；每个隔垫层与其对应的色阻层的材料、厚度均相同；
所述主隔垫柱包括N个隔垫层，所述辅隔垫柱包括M个隔垫层，其中，M、N均为正整数，且M＜N。
在一些实施例中，所述主隔垫柱中的N个隔垫层在所述第一基底上的正投影的面积相同。
在一些实施例中，所述隔垫柱包括多个所述隔垫层，
至少一个所述隔垫柱中的多个隔垫层在所述第一基底上的正投影的面积，沿远离所述黑矩阵方向依次减少。
在一些实施例中，所述隔垫柱中最靠近所述黑矩阵的隔垫层与所述黑矩阵的宽度之比在0.5～1之间；所述隔垫柱中，最远离所述黑矩阵的隔垫层与最靠近所述黑矩阵的隔垫层的面积之比在1/6～1/2之间。
在一些实施例中，至少两个相邻且颜色相同的所述色阻层，连接为一体结构。
在一些实施例中，至少一个所述隔垫层与其相邻的所述色阻层，连 接为一体结构。
在一些实施例中，所述阵列基板还包括设置在所述第二基底上的多条栅线和多条数据线，所述多条栅线和所述多条数据线交叉设置，且多条栅线中的每条在所述第一基底上的正投影、多条数据线中的每条在所述第一基底上的正投影均位于所述间隔区；
至少一个所述隔垫柱在所述第一基底上的正投影位于所述栅线在所述第一基底的正投影范围内。
在一些实施例中，所述阵列基板还包括薄膜晶体管和像素电极；
所述薄膜晶体管位于所述第二基底和所述支撑层之间；
所述像素电极位于所述支撑层远离所述第二基底一侧，并通过所述本体层上的过孔与所述薄膜晶体管的漏极连接。
在一些实施例中，所述隔垫柱在所述第一基底上的正投影与所述薄膜晶体管在所述第一基底上的正投影无交叠。
第二方面，本公开实施例提供一种显示面板的制作方法，包括：
提供第一基底，所述第一基底包括多个像素区和位于相邻像素区之间的间隔区；
在所述第一基底的间隔区形成多个所述隔垫柱，在所述第一基底的每个像素区形成所述色阻层，其中，每一所述隔垫柱包括至少一个隔垫层，每一隔垫层与其中一个色阻层同步形成；
提供第二基底，并在所述第二基底上形成支撑层，所述支撑层包括本体层和多个凸部，所述凸部位于所述本体层远离所述第二基底的一侧，至少一个所述凸部和一个所述隔垫柱相对设置；
将所述第二基底与所述第一基底对盒，以使至少一个所述隔垫柱与所述凸部直接接触。
在一些实施例中，在所述第二基底上形成支撑层的步骤包括：
形成支撑材料层；
对所述支撑材料层进行构图工艺，以形成所述本体层和位于所述本体层上的多个凸部。
第三方面，本公开实施例提供一种显示装置，包括第一方面所述的显示面板。
附图说明
附图是用来提供对本公开的进一步理解，并且构成说明书的一部分，与下面的具体实施方式一起用于解释本公开，但并不构成对本公开的限制。在附图中：
图1为本公开实施例提供的一种显示面板的结构示意图。
图2为本公开实施例提供的另一显示面板的结构示意图。
图3A为本公开实施例提供的另一显示面板的结构示意图。
图3B为本公开实施例提供的另一显示面板的结构示意图。
图4为本公开实施例提供的另一显示面板的结构示意图。
图5为本公开实施例提供的另一显示面板的结构示意图。
图6A为本公开实施例提供的一种显示面板的平面示意图。
图6B为本公开实施例提供的一种显示面板的平面示意图。
图6C为沿图6B中AA’线的剖切示意图。
图6D为本公开实施例提供的一种显示面板的平面示意图。
图7为本公开实施例提供的另一显示面板的结构示意图。
图8为本公开实施例提供的另一显示面板的平面示意图。
图9为本公开实施例提供的一种显示面板的制作方法的示意流程图。
具体实施方式
以下结合附图对本公开的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本公开，并不用于限制本公开。
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。
除非另作定义，本公开实施例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。同样，“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。
随着显示技术的发展，薄膜晶体管液晶显示器(Thin Film Transistor Liquid Crystal Display，TFT-LCD)由于其体积小、功耗低、无辐射等特点，在当前显示领域越来越多的得到应用。
液晶显示面板包括相对设置的彩膜基板和阵列基板、以及位于二者之间的液晶层。其中彩膜基板的制作通常包括以下几道制作工序：黑矩阵层-蓝色色阻层-绿色色阻层-红色色阻层-保护胶(Over Coating，OC)-隔垫物(Post Spacer，PS)。其中，隔垫物用于在彩膜基板和阵列基板对盒后，对显示面板起到支撑作用。在彩膜基板制作过程中如果能将隔垫物与其他结构同步形成，精简其制作工序，将会大大提高显示面板的制作效率。
目前，精简隔垫物制作工序，逐渐成为TFT-LCD领域的发展趋势。 例如，可以采用色阻叠加的方式形成隔垫物，例如，彩膜基板包括红色色阻层、蓝色色阻层和绿色色阻层，隔垫物包括三个隔垫层，三个隔垫层分别与红色色阻层、绿色色阻层和蓝色色阻层同步形成，以省略隔垫物的单独制作工序。但是由于彩膜基板的色阻层种类有限，使得隔垫物的叠加高度受到限制，无法满足多个隔垫物中不同高度的隔垫物之间的段差要求；且无法满足隔垫物的弹性需求，导致隔垫物支撑效果不理想，最终无法保证彩膜基板与阵列基板的对盒质量。
为了解决上述技术问题中的至少一个，本公开实施例提供一种显示面板，既能简化彩膜基板的制作工艺，又能使隔垫物达到显示面板中彩膜基板与阵列基板的对盒要求。
图1为本公开实施例提供的一种显示面板的结构示意图，如图1所示，显示面板包括相对设置的彩膜基板1和阵列基板2、以及位于二者之间的液晶层(未示出)。
其中，彩膜基板1包括第一基底11、多个隔垫柱12和多个色阻层13，隔垫柱12和色阻层13均设置在第一基底11朝向阵列基板2的一侧，第一基底11包括显示区，该显示区包括多个像素区和位于相邻像素区之间的间隔区；隔垫柱12位于间隔区，每个像素区中均设置有色阻层13。每一隔垫柱12包括至少一个隔垫层，每一隔垫层的材料与其中一个像素区中的色阻层13的材料相同。
阵列基板2包括第二基底21和支撑层22，支撑层22设置在第二基底21朝向彩膜基板1的一侧，支撑层22包括本体层221和多个凸部222，凸部222位于本体层221远离第二基底21的一侧，至少一个凸部222与一个隔垫柱12相对设置；至少一个隔垫柱12与凸部222直接接触，从而支撑在凸部222上。
需要说明的是，显示区中可以设置多种不同颜色的色阻层13，例如蓝色色阻层、绿色色阻层以及红色色阻层。隔垫柱12中的每一隔垫层的 材料可以与其中一个像素区的色阻层13材料相同，换言之，每一隔垫层可以与蓝色色阻层、绿色色阻层以及红色色阻层中的其中一者同步形成。
本公开实施例提供的显示面板中，隔垫柱12包括至少一个隔垫层，每一隔垫层的材料与其中一个像素区的色阻层13的材料相同，因此每一隔垫层可以与其中一个像素区的色阻层13同步制作，省略了隔垫柱12的单独制作步骤；另外，至少一个隔垫柱12支撑在凸部222上，弥补了由于显示区中的色阻层13种类有限而导致的隔垫柱12高度受限的缺陷。通过隔垫柱12和支撑层22的凸部222的结合，共同形成支撑结构，从而可以对显示面板进行稳定的支撑。
在一些实施例中，凸部222的硬度小于隔垫层的硬度，以使隔垫柱12和支撑层22形成的支撑结构，既能提供足够的支撑力，又能够满足支撑结构的弹性需求。其中，硬度通常用来表征物体抵抗硬物压入其表面的能力，硬度越高，物体的抗变形能力越高。
在一些实施例中，凸部222的材料包括有机材料，例如树脂材料，以使隔垫柱12支撑在凸部222上时，提高支撑结构的弹性，进而提高支撑结构的支撑效果。
在一些实施例中，本体层221与凸部222为一体结构。即在支撑层22的制作过程中，可以通过对同一材料层进行图案化，以同时形成本体层221和凸部222。
在一些实施例中，隔垫柱与凸部的高度之比为0.5～1.3，从而保证支撑结构能提供稳定的支撑力，并具有一定的弹性。例如，隔垫柱与凸部的高度之比为0.5或0.8或1或1.3。
在一些实施例中，凸部222的高度h1为1.4-1.6μm。例如，如图1所示，凸部222高度h1为1.5μm。本体层221与凸部222之间存在段差，具体段差范围在本公开实施例中不作限定。需要说明的是，上述凸部222的高度h1是在无挤压的自然状态下的高度。
如图1所示，彩膜基板1还包括黑矩阵14，黑矩阵14位于间隔区，黑矩阵14可以防止不同像素区之间发生串扰。隔垫柱12位于黑矩阵14远离第一基底11的一侧，黑矩阵14在第一基底11上的正投影覆盖隔垫柱12在第一基底11上的正投影，以防止隔垫柱12对显示效果造成影响。
在一些实施例中，每一隔垫柱12均与一个凸部222相对设置；彩膜基板1上的多个隔垫柱12中包括至少一个主隔垫柱121和多个辅隔垫柱122。如图1所示，每一主隔垫柱121均与其相对的凸部222直接接触，每一辅隔垫柱122与其相对的凸部222之间具有间隔。
在一些实施例中，如图1所示，主隔垫柱121的高度h2为1.5～1.85μm，辅隔垫柱122的高度h3为0.8～1.4μm。例如，主隔垫柱121的高度h2为1.82μm，辅隔垫柱122的高度h3为1.36μm，主隔垫柱121和辅隔垫柱122之间的段差为0.46μm。需要说明的是，上述主隔垫柱121的高度h2和辅隔垫柱122的高度h3是在无挤压的自然状态下的高度。
在一个示例中，彩膜基板中的主隔垫柱121占隔垫柱12总数的1％～10％，例如，隔垫柱12共96个，其中主隔垫柱121设置2个，其在第一基底11上的正投影面积共为126.5μm 2；辅隔垫柱122设置94个，其在第一基底11上的正投影面积共为5943.6μm 2。
在一些实施例中，彩膜基板1包括N种颜色的色阻层13；每个隔垫层对应一种颜色的隔垫层，同一个隔垫柱12中不同的隔垫层对应不同颜色的色阻层13；每个隔垫层与其对应的色阻层13厚度相同；主隔垫柱121包括N个隔垫层，辅隔垫柱122包括M个隔垫层，其中，M、N均为正整数，且M＜N。
图2为本公开实施例提供的另一显示面板的结构示意图，在一个示例中，如图2所示，彩膜基板1包括三种颜色的色阻层，分别是红色色阻层13r、蓝色色阻层13b和绿色色阻层13g；主隔垫柱121包括三个隔 垫层，即沿远离黑矩阵14方向依次设置的第一隔垫层a1、第二隔垫层a2和第三隔垫层a3；辅隔垫柱122中包括两个隔垫层，即沿远离黑矩阵14方向依次设置的第四隔垫层a4和第五隔垫层a5，上述每一隔垫层的材料与其中一个像素区的色阻层13的材料和厚度相同。
上述示例中，主隔垫柱121中的三个隔垫层分别对应一种颜色的色阻层13，如图2所示，第一隔垫层a1可以与蓝色色阻层13b的材料和厚度相同、第二隔垫层a2可以与绿色色阻层13g的材料和厚度相同、第三隔垫层a3可以与红色色阻层13r的材料和厚度相同。本公开实施例中对于上述三种颜色色阻层在主隔垫柱121中的顺序不作限定，例如，第一隔垫层a1也可以与红色色阻层13r的材料和厚度相同、第二隔垫层a2也可以与蓝色色阻层13b的材料和厚度相同、第三隔垫层a3与可以与绿色色阻层13g的材料和厚度相同。辅隔垫柱122中所包括的两个颜色的色阻层13，即第四隔垫层a4可以与蓝色色阻层13b的材料和厚度相同、第五隔垫层a5可以与绿色色阻层13g的材料和厚度相同。同样，第四隔垫层a4和第五隔垫层a5分别采用的色阻层的材料，以及其在辅隔垫柱122中的顺序，在本公开实施例中同样不作限定。
在一个示例中，红色色阻层13r的厚度可以是2.25μm，蓝色色阻层13b的厚度可以是2.25μm，绿色色阻层13g的厚度可以是2.30μm，上述三种色阻层13也可以是其他厚度，本公开对此不作限定。
在一个示例中，第一隔垫层a1、第四隔垫层a4均设置与蓝色色阻层13b同一厚度的相同材料，因此其可以与像素区的蓝色色阻层13b同步形成；第二隔垫层a2、第五隔垫层a5均设置与绿色色阻层13g同一厚度的相同材料，因此其可以与像素区的绿色色阻层13g同步形成；第三隔垫层a3设置与红色色阻层13r同一厚度的相同材料，因此其可以与像素区的红色色阻层13r同步形成。通过上述方式，在像素区中形成色阻层13的同时，一同形成隔垫柱12中的各个隔垫层，省略了隔垫柱12 的单独制作步骤，精简了显示面板的制作工艺。
需要说明的是，上述示例是以N＝3为例进行说明的，在其他示例中，N也可以为其他值，例如4。
图3A、3B为本公开实施例提供的另一显示面板的结构示意图，在一些实施例中，如图3A所示，显示面板还包括封框胶31和保护层32。
其中，封框胶31固定连接在彩膜基板1和阵列基板2之间并形成环状结构，液晶层位于封框胶31所环绕的区域中。
保护层32位于彩膜基板1朝向阵列基板的一侧，其覆盖彩膜基板1上的色阻层13、黑矩阵14和每个隔垫层，上述保护层32为一体结构，其材料可以是OC胶。
需要说明的是，当设置有保护层32时，每个隔垫柱还包括保护层32中与隔垫层相对应的部分；对于辅隔垫柱而言，其与凸部222之间具有间隔是指：保护层32中与辅隔垫柱122的隔垫层相对的部分，与凸部222之间存在间隔d。其中，间隔d可以为0.1～0.15μm，例如，如图3A所示，d为0.13μm。还需要说明的是，在本公开的其他附图(例如图2、图3B～图5)中，同样可以设置有保护层32。
另外，在保护层32远离彩膜基板1的一侧、以及支撑层22远离第二基底21的一侧均设置有取向层(图中未示出)，以使液晶层中的液晶分子按一定的方向和角度排列。
在一个示例中，在对应于像素区的位置，液晶层的厚度(即Cell Gap，CG)为3.5～3.9μm。例如，CG为3.55μm。
在一些实施例中，如图3A所示，主隔垫柱121具有朝向阵列基板2的第一端面，凸部222具有朝向彩膜基板1的第二端面；第一端面在第一基底11上的正投影落入第二端面在第一基底11上的正投影范围内。显示面板未受到外力时，主隔垫柱121与凸部222之间存在一定的相互挤压力，这样可以提高显示面板抵抗外力的能力，提高显示面板的稳定 性。例如，如图3A所示，当主隔垫柱121与凸部222相互挤压时，凸部222的第二端面在第一端面的挤压下，形成向第二基底21方向突出的凹陷形变。又例如，如图3B所示，上述第二端面在第一基底11上的正投影落入上述第一端面在第一基底11上的正投影范围内，使得主隔垫柱121的第一端面在第二端面的挤压下，形成向第一基底11方向突出的凹陷形变。
在一个示例中，主隔垫柱121和其对应的凸部222之间相互产生压力，主隔垫柱121在压力作用下形成压缩形变，其高度h2由自然状态下的1.82μm压缩为1.49μm，从而形成0.33μm、即18.1％的形变量。
上述示例中，如图3A、3B所示，主隔垫柱121的第一端面和凸部222的第二端面的大小不同，相比于两个端面完全重叠的结构，能够提供更稳定的支撑力。
在另外一个示例中，当第二端面在第一基底11上的正投影落入第一端面在第一基底11上的正投影范围内时，可以在第一端面上形成第一限位槽，从而将凸部222的第二端面置于第一限位槽中；或者，当第一端面在第一基底11上的正投影落入第二端面在第一基底11上的正投影范围内时，可以在第二端面上形成第二限位槽，从而将主隔垫柱121的第一端面置于第二限位槽中。上述所形成的限位槽均是指，在第一端面和第二端面上无压力状态下所形成的限位槽，进而在显示面板受到外力时，基于主隔垫柱121和凸部222之间的限位槽形成相互嵌入的结构，同样可以减少主隔垫柱121与凸部222在显示面板受力时所发生的错位。当第一端面或第二端面上形成限位槽时，也可以将主隔垫柱121和其对应的凸部222之间设计为呈挤压状态，从而提高显示面板的稳定性。
在一些实施例中，至少一个隔垫柱12中的多个隔垫层在第一基底11上的正投影的面积，沿远离黑矩阵14方向依次减少。
图4为本公开实施例提供的另一显示面板的结构示意图，在一些实 施例中，如图4所示，第一隔垫层a1在第一基底11上的正投影覆盖第二隔垫层a2在第一基底11上的正投影，第二隔垫层a2在第一基底11上的正投影覆盖第三隔垫层a3在第一基底11上的正投影。也就是说，主隔垫柱121中的三个隔垫层可以形成台阶结构。同理，辅隔垫柱122中的两个隔垫层也可以形成台阶结构。
可选地，隔垫柱12中最靠近黑矩阵14的隔垫层与黑矩阵14的宽度之比在0.5～1之间；同一个隔垫柱12中，最远离黑矩阵14的隔垫层与最靠近黑矩阵14的隔垫层的面积之比在1/6～1/2之间，从而提高隔垫物12的支撑稳定性。例如，在图4中的主隔垫物121中，第一隔垫层a1与黑矩阵14的宽度之比在0.5～1之间，第三隔垫层a3与第一隔垫层a1的面积之比在1/6～1/2之间；在图4中的辅隔垫物122中，第四隔垫层a4与黑矩阵14的宽度之比在0.5～1之间，第五隔垫层a5与第四隔垫层a4的面积之比在1/6～1/2之间。
需要说明的是，黑矩阵14为网格结构，其包括多个沿第一方向延伸的第一遮光条和多个沿第二方向延伸的第二遮光条，第一方向即为栅线的延伸方向，第二延伸方向即为数据线的延伸方向，多个第一遮光条和多个第二遮光条交叉形成网格结构。对于与第一遮光条相对设置的隔垫柱12而言，其隔垫层与黑矩阵14的宽度之比是指，该隔垫层在第二方向上的尺寸与第一遮光条在第二方向上的尺寸之比；对于与第二遮光条相对设置的隔垫柱12而言，其隔垫层与黑矩阵14的宽度之比是指，隔垫层在第一方向上的尺寸与第二遮光条在第一方向上的尺寸之比。
当然，主隔垫柱121中的三个隔垫层和/或辅隔垫柱122中的两个隔垫层也可以形成为其他形状，例如纵截面为梯形的结构。
需要说明的是，主隔垫柱121或辅隔垫柱122中的多个隔垫层可以形成在第一基底11上的正投影依次减小的台阶结构，也可以在第一基底11上的正投影面积相同，即形成柱体结构。图5为本公开实施例提供的 另一显示面板的结构示意图，在一些实施例中，如图5所示，主隔垫柱121中的多个隔垫层在第一基底11上的正投影的面积均相同。
每一隔垫层在第一基底11上的正投影可以是圆形，也可以是四边形，或者其他多边形；以上，在本公开实施例中均不作限定。
图6A为本公开实施例提供的一种显示面板的平面示意图，图6A中仅示意出了显示面板的部分结构。如图6A所示，阵列基板2还包括设置在第二基底21上的多条栅线GL和多条数据线DL，栅线GL沿第一方向延伸，数据线DL沿第二方向延伸。需要说明的是，信号线沿某一方向延伸并不表示该信号线一定是直线，而是大致呈沿某一方向延伸的趋势。多条栅线GL和多条数据线DL交叉设置，且多条栅线GL中的每条在第一基底11上的正投影、多条数据线DL中的每条在第一基底11上的正投影均位于间隔区。
上述栅线GL和数据线DL的材料不做具体限定，栅线GL和数据线DL均可以包括单层金属层，也可以包括多层金属层。例如：数据线DL包括MO/Cu/MO的叠层，其中每一金属层的厚度依次分别为
Figure PCTCN2022107645-appb-000001
上述栅线GL的材料可以是Cu，其厚度可以在
Figure PCTCN2022107645-appb-000002
之间，例如Cu厚度可以是
Figure PCTCN2022107645-appb-000003
由于隔垫柱12作为显示面板中支撑结构的一部分，其在第一基底11上的正投影越大，支撑结构的稳定性越好；但另一方面，由于隔垫柱12的设置也会影响到像素的开口范围，进而影响到显示面板的出光量，因此隔垫柱12的大小也会受到相应的限制。在一些实施例中，如图6A所示，至少一个隔垫柱12在第一基底11上的正投影位于栅线GL在第一基底11的正投影范围内。即，栅线GL在第一基底11正投影的范围内，隔垫柱12可以增大其沿栅线GL延伸方向上的尺寸。通过上述结构，可以在增加隔垫柱12的大小以保证支撑效果的同时，不影响显示面板的出光效率。
在一些实施例中，至少两个相邻且颜色相同的色阻层13连接为一体结构，例如，多个像素区中的色阻层排列为多行多列，行方向可以为上述第一方向，列方向可以为上述第二方向，同一列中的色阻层的颜色相同，这种情况下，同一列中的至少两个色阻层连接为一体结构。
在一个示例中，彩膜基板上设置多个隔垫柱12，其中包括至少一个主隔垫柱121，每一主隔垫柱121在第二方向上相邻的色阻层均为蓝色色阻层13b。
需要说明的是，图6A中的所示出隔垫柱12可以是主隔垫柱也可以是辅隔垫柱，但不管其是主隔垫柱还是辅隔垫柱，其在第一基底11上的正投影均可以是任意形状，例如，四边形、圆形、半圆形、三角形等，本公开实施例对此不做限定。在一个示例中，如图6A所示，隔垫柱12在第一基底11上的正投影为矩形，其长边l和短边w可以分别为20μm、14μm。另外，上述矩形的两边长也可以是其他尺寸，本公开实施例对此不做限定。
在一些实施例中，至少一个隔垫层与其相邻的所述色阻层，可以连接为一体结构。
图6B为本公开实施例提供的另一显示面板的平面示意图，图6C为沿图6B中AA’线的剖切示意图，在一个示例中，如图6B、6C所示，以图6B中最左侧一列像素区为例，该列中的三个像素区中均设置蓝色色阻层13b，且位于三个蓝色色阻层13b之间的两个隔垫柱中，均存在与蓝色色阻层13b的材料和厚度均相同的一个隔垫层。因此，将上述同一列中的三个蓝色色阻层13b和两个相同材料和厚度的隔垫层形成一体结构。同样，同一列中的三个绿色色阻层13g和两个相同材料和厚度的隔垫层也可以形成一体结构，以及同一列中的三个红色色阻层13r和两个相同材料和厚度的隔垫层形成一体结构。
需要说明的是，图6B中仅示出了三行三列像素组，但实际应用中， 显示面板中阵列排布的像素区的行列数目远大于三。对于多行多列的像素区中的任意一列，其色阻层可以是相同颜色并形成为一体结构。同时，在同一列上，位于相邻像素区之间的隔垫柱中具有与像素区色阻层相同材料和厚度的隔垫层，其与色阻层也可以形成为一体结构，从而形成沿列方向延伸的连续膜层。
还需要说明的是，与色阻层形成为一体结构的隔垫层可以是主隔垫柱121中的隔垫层，也可以是辅隔垫柱122中的隔垫层。例如，如图6B和图6C所示，位于其中一列的像素区中的色阻层均为蓝色色阻层，该列中的像素区之间既可以设置主隔垫柱121，也可以设置辅隔垫柱122，主隔垫物121中的第一隔垫层a1、辅隔垫柱122中的第四隔垫层a4均与蓝色色阻层连接为一体结构。
图6D为本公开实施例提供的另一显示面板的平面示意图，在一个示例中，如图6D所示，数据线DL与多个隔垫柱12相对设置，其中，可以将与同一条数据线DL相对设置的多个隔垫柱12中材料相同的隔垫层，连接为一体结构。
图7为本公开实施例提供的另一显示面板的结构示意图，在一些实施例中，如图7所示，阵列基板2还包括薄膜晶体管23和像素电极24；薄膜晶体管23位于第二基底21和支撑层22之间；像素电极24位于支撑层22远离第二基底21一侧，并通过本体层221上的过孔与薄膜晶体管23的漏极连接。像素电极24可以采用透明材料制成，例如ITO等。像素电极24的厚度可以为
Figure PCTCN2022107645-appb-000004
例如，像素电极24的厚度为
Figure PCTCN2022107645-appb-000005
当然，阵列基板2还可以包括其他图中未示出的结构，例如公共电极。
图8为本公开实施例提供的另一显示面板的平面示意图，在一些实施例中，如图8所示，所述隔垫柱12在所述第一基底11上的正投影与所述薄膜晶体管23在所述第一基底11上的正投影无交叠。以图8为例，像素电极24和色阻层13一一对应，即，像素电极24排成多行多列，每 个像素电极24均连接一个薄膜晶体管23，同一行像素电极24所连接的薄膜晶体管23的栅极与同一条栅线GL相连，同一列中相邻两个像素电极24所连接的两个薄膜晶体管23的源极分别连接相邻的两条数据线DL。这种情况下，如图8所示，像素电极24的左下角位置和右上角位置设置有薄膜晶体管23，则支撑结构20可以设置在像素电极24的左上角和右下角位置。
当然，多个像素电极24与薄膜晶体管23的连接方式也可以为其他方式，例如，每个像素电极24均连接一个薄膜晶体管23，同一行像素电极24所连接的薄膜晶体管23的栅极与同一条栅线GL相连，同一列中的像素电极24所连接的薄膜晶体管23的源极与同一条数据线DL连接，这种情况下，则像素电极24的左上角位置和左下角位置设置有薄膜晶体管23，支撑结构20可以设置在像素电极的右上角和右下角位置。
其中，栅线GL的各处宽度可以相同，也可以如图8所示，不同位置的宽度不同。如图8所示，可以将栅线GL对应于支撑结构20或者薄膜晶体管23的位置适当加宽，将未设置支撑结构20和薄膜晶体管23的位置的宽度减少。一方面部分位置设置较宽，减小其电阻，另一方面部分位置设置的相对较窄，以便能够留出更多开口空间，提高显示面板的显示效果。
图9为本公开实施例提供的一种显示面板的制作方法的示意流程图，如图9所示，显示面板的制作方法包括：
S1，提供第一基底，第一基底包括多个像素区和位于相邻像素区之间的间隔区。
S2，在第一基底的间隔区形成多个隔垫柱，在第一基底的每个像素区形成色阻层，其中，每一隔垫柱包括至少一个隔垫层，每一隔垫层与其中一个色阻层同步形成。
S3，提供第二基底，并在第二基底上形成支撑层，支撑层包括本体 层和多个凸部，凸部位于本体层远离第二基底的一侧，至少一个凸部对应一个隔垫柱。
其中，上述S3中在第二基底上形成支撑层的步骤可以包括：
S31，形成支撑材料层。
S32，对支撑材料层进行构图工艺，以形成本体层和位于本体层上的多个凸部。
S4，将第二基底与第一基底对盒，以使至少一个隔垫柱与凸部直接接触。
本公开实施例提供的显示面板的制作方法，由于隔垫柱中每一隔垫层的材料与其中一个像素区的色阻层的材料相同，因此可以在同一工序中制作，省略了隔垫柱的单独制作步骤；隔垫柱支撑在凸部上，即隔垫柱与凸部直接接触，弥补了由于像素区中的色阻层类型有限，导致隔垫柱高度受限的缺陷；并且，本体层和多个凸部在同一工艺中制作形成。通过上述制作方法形成的显示面板，既能够保证由隔垫柱和支撑层共同组成的支撑结构的支撑效果，提供足够的支撑力，又能精简显示面板的制作工序。
本公开实施例还提供一种显示装置，包括上述显示面板。
上述显示装置可以为：电子纸、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，本公开对此不作限定。
可以理解的是，以上实施方式仅仅是为了说明本公开的原理而采用的示例性实施方式，然而本公开并不局限于此。对于本领域内的普通技术人员而言，在不脱离本公开的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本公开的保护范围。

Claims (19)

  1. 一种显示面板，其中，包括相对设置的阵列基板和彩膜基板，其中，
    所述彩膜基板包括第一基底、多个隔垫柱和多个色阻层，所述隔垫柱和所述色阻层均设置在所述第一基底朝向所述阵列基板的一侧，所述第一基底包括多个像素区和位于相邻像素区之间的间隔区；所述隔垫柱位于所述间隔区，每个所述像素区中均设置有所述色阻层；
    所述隔垫柱包括至少一个隔垫层，每一隔垫层的材料与其中一个像素区中的色阻层的材料相同；
    所述阵列基板包括第二基底和支撑层，所述支撑层设置在所述第二基底朝向所述彩膜基板的一侧，所述支撑层包括本体层和多个凸部，所述凸部位于所述本体层远离所述第二基底的一侧，至少一个所述凸部和一个所述隔垫柱相对设置；
    至少一个所述隔垫柱与所述凸部直接接触。
  2. 根据权利要求1所述的显示面板，其中，所述凸部的硬度小于所述隔垫层的硬度。
  3. 根据权利要求1所述的显示面板，其中，所述凸部的材料包括有机材料。
  4. 根据权利要求1至3中任一项所述的显示面板，其中，所述本体层与所述凸部为一体结构。
  5. 根据权利要求1至4中任一项所述的显示面板，其中，所述隔垫 柱与所述凸部的高度之比为0.5～1.3。
  6. 根据权利要求1至5中任一项所述的显示面板，其中，所述彩膜基板还包括位于所述间隔区的黑矩阵；
    所述隔垫柱位于所述黑矩阵远离所述第一基底的一侧，所述黑矩阵在所述第一基底上的正投影覆盖所述隔垫柱在所述第一基底上的正投影。
  7. 根据权利要求1至6中任一项所述的显示面板，其中，每一所述隔垫柱均与一个所述凸部相对设置；
    所述多个隔垫柱中包括至少一个主隔垫柱和多个辅隔垫柱；
    每一所述主隔垫柱均与其相对的所述凸部直接接触；
    每一所述辅隔垫柱与其相对的所述凸部之间具有间隔。
  8. 根据权利要求7所述的显示面板，其中，所述彩膜基板包括N种颜色的色阻层；每个所述隔垫层对应一种颜色的色阻层，同一个隔垫柱中不同的隔垫层对应不同颜色的色阻层；每个隔垫层与其对应的色阻层的材料、厚度均相同；
    所述主隔垫柱包括N个隔垫层，所述辅隔垫柱包括M个隔垫层，其中，M、N均为正整数，且M＜N。
  9. 根据权利要求8所述的显示面板，其中，
    所述主隔垫柱中的N个隔垫层在所述第一基底上的正投影的面积相同。
  10. 根据权利要求1至8中任一项所述的显示面板，其中，所述隔垫柱包括多个所述隔垫层，
    至少一个所述隔垫柱中的多个隔垫层在所述第一基底上的正投影的面积，沿远离所述黑矩阵方向依次减少。
  11. 根据权利要求10所述的显示面板，其中，所述隔垫柱中最靠近所述黑矩阵的隔垫层与所述黑矩阵的宽度之比在0.5～1之间；
    所述隔垫柱中，最远离所述黑矩阵的隔垫层与最靠近所述黑矩阵的隔垫层的面积之比在1/6～1/2之间。
  12. 根据权利要求1至8中任一项所述的显示面板，其中，
    至少两个相邻且颜色相同的所述色阻层，连接为一体结构。
  13. 根据权利要求1至8中任一项所述的显示面板，其中，
    至少一个所述隔垫层与其相邻的所述色阻层，连接为一体结构。
  14. 根据权利要求1至13中任一项所述的显示面板，其中，
    所述阵列基板还包括设置在所述第二基底上的多条栅线和多条数据线，所述多条栅线和所述多条数据线交叉设置，且多条栅线中的每条在所述第一基底上的正投影、多条数据线中的每条在所述第一基底上的正投影均位于所述间隔区；
    至少一个所述隔垫柱在所述第一基底上的正投影位于所述栅线在所述第一基底的正投影范围内。
  15. 根据权利要求1至13中任一项所述的显示面板，其中，所述阵列基板还包括薄膜晶体管和像素电极；
    所述薄膜晶体管位于所述第二基底和所述支撑层之间；
    所述像素电极位于所述支撑层远离所述第二基底一侧，并通过 所述本体层上的过孔与所述薄膜晶体管的漏极连接。
  16. 根据权利要求15所述的显示面板，其中，
    所述隔垫柱在所述第一基底上的正投影与所述薄膜晶体管在所述第一基底上的正投影无交叠。
  17. 一种显示面板的制作方法，其中，包括：
    提供第一基底，所述第一基底包括多个像素区和位于相邻像素区之间的间隔区；
    在所述第一基底的间隔区形成多个所述隔垫柱，在所述第一基底的每个像素区形成所述色阻层，其中，每一所述隔垫柱包括至少一个隔垫层，每一隔垫层与其中一个色阻层同步形成；
    提供第二基底，并在所述第二基底上形成支撑层，所述支撑层包括本体层和多个凸部，所述凸部位于所述本体层远离所述第二基底的一侧，至少一个所述凸部和一个所述隔垫柱相对设置；
    将所述第二基底与所述第一基底对盒，以使至少一个所述隔垫柱与所述凸部直接接触。
  18. 根据权利要求17所述的显示面板的制作方法，其中，在所述第二基底上形成支撑层的步骤包括：
    形成支撑材料层；
    对所述支撑材料层进行构图工艺，以形成所述本体层和位于所述本体层上的多个凸部。
  19. 一种显示装置，其中，包括权利要求1-16中任意一项所述的显示面板。
PCT/CN2022/107645 2022-07-25 2022-07-25 显示面板及其制作方法、显示装置 WO2024020729A1 (zh)

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