WO2015027636A1 - 一种液晶显示基板、显示装置以及它们的制备方法 - Google Patents

一种液晶显示基板、显示装置以及它们的制备方法 Download PDF

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Publication number
WO2015027636A1
WO2015027636A1 PCT/CN2013/089752 CN2013089752W WO2015027636A1 WO 2015027636 A1 WO2015027636 A1 WO 2015027636A1 CN 2013089752 W CN2013089752 W CN 2013089752W WO 2015027636 A1 WO2015027636 A1 WO 2015027636A1
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WO
WIPO (PCT)
Prior art keywords
sealant
substrate
liquid crystal
blocking member
crystal display
Prior art date
Application number
PCT/CN2013/089752
Other languages
English (en)
French (fr)
Inventor
王辉
郭远辉
张一三
王春
秦锋
Original Assignee
合肥京东方光电科技有限公司
京东方科技集团股份有限公司
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Application filed by 合肥京东方光电科技有限公司, 京东方科技集团股份有限公司 filed Critical 合肥京东方光电科技有限公司
Publication of WO2015027636A1 publication Critical patent/WO2015027636A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • 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
    • G02F1/1341—Filling or closing of cells

Definitions

  • the invention relates to the technical field of liquid crystal display manufacturing, in particular;
  • TFT-LCD Thin Film Transistor Liquid Crystal Display
  • the liquid crystal panel is sealed by the frame substrate and the color film substrate through the sealant and formed on the box.
  • the process of the box frame will affect the quality of the liquid crystal panel. Therefore, the vacuum substrate of the array substrate and the color film substrate The process of sealing the frame is very important.
  • the specific steps of the liquid crystal panel to the box process are generally as follows: First, the sealant coating device is coated with the sealant on the periphery of one substrate in the array substrate and the color filter substrate; then, the drop is used in the center of the other substrate.
  • Fig. 1 is a schematic cross-sectional view of a prior art liquid crystal panel (Fig. 1 is a simplified schematic view, a structure not related to the application of the present invention is not shown).
  • the color film substrate 10 is composed of a color film substrate 10, an array substrate 20, and a liquid crystal 30 between the two substrates.
  • the color filter substrate 10 includes at least a flat layer 3 disposed on the substrate substrate 1 and an orientation disposed on the flat layer 3.
  • the film substrate 20 includes at least an insulating layer 5 and an alignment film 6 which are disposed on the base substrate 2.
  • the color filter substrate 10 and the array substrate 20 are bonded and sealed by the sealant 7 to form a liquid crystal cell, and the alignment film 4 and the alignment film 6 are adjacent to the liquid crystal 30.
  • the display area of the liquid crystal panel has an annular frame outside.
  • Narrow Bezel is the current trend of LCD panels.
  • the narrow bezel liquid crystal display panel allows the product to have a smaller volume and weight.
  • the sealant coating area and the designed alignment film printing area maintain a certain safety distance D, so as to avoid the adhesion of the sealant due to direct etching of the alignment film;
  • the safety distance D of the designed frame sealant coating region to the alignment film printing region needs to be considered to increase the error value of each of the above precisions.
  • the alignment film is usually divided into a display region and a non-display region in the peripheral region thereof.
  • the inside of the sealant is at least about 1.2 mm from the edge of the display region of the alignment film.
  • An object of the present invention is to provide a liquid crystal display substrate, a display device, and a method for fabricating the same, wherein a sealant blocking mechanism is disposed on the liquid crystal display substrate, and a sealant is disposed on the sealant blocking mechanism to enable the sealant
  • a sealant blocking mechanism is disposed on the liquid crystal display substrate
  • a sealant is disposed on the sealant blocking mechanism to enable the sealant
  • a liquid crystal display substrate includes a substrate substrate and a film layer formed on the substrate substrate, and the film layer is formed with a sealant blocking member, the frame sealant The blocking member is disposed on an edge region of the predetermined alignment film forming region, the sealant blocking member and the film layer form a cavity, and the top of the sealant blocking member is disposed to communicate with the cavity Opening.
  • the sealant block member is provided in a non-display region of a predetermined alignment film formation region.
  • the liquid crystal display substrate is a color filter substrate
  • the film layer is a flat layer
  • the material of the flat layer is a resin material
  • the liquid crystal display substrate is an array substrate
  • the thin film layer is an insulating layer
  • the insulating layer is made of silicon nitride.
  • the frame sealing resistance is the same as the material of the film layer.
  • a width of the opening is smaller than a width of the sealant blocking member, and a width of the opening is greater than or equal to a width of the sealant blocking member. half.
  • the width of the opening is smaller than the width of the bottom surface of the cavity, and the width of the opening is greater than or equal to half the width of the bottom surface of the cavity.
  • a cross section of the cavity perpendicular to the base substrate is a rectangle having a rectangular shape, a trapezoidal shape, or a stepped shape on both sides.
  • a width of a cross section of the cavity parallel to the base substrate is larger than a width of the opening.
  • the height of the sealant block member is greater than or equal to about 1 ⁇ m.
  • the side of the sealant blocking member adjacent to the display area has a distance from the edge of the display area of greater than or equal to about 0.2 mm (preferably about 0). , 2mm 0, 5mm.
  • the frame sealant member in the liquid crystal display substrate, has a width of greater than or equal to about 1 mm, preferably about 1 mm to 2 mm.
  • Another aspect of the present invention provides a display device including a color film substrate and an array substrate disposed opposite to each other, a liquid crystal formed between the color filter substrate and the array substrate, the color film substrate and the array substrate.
  • the liquid crystal display substrate as described above is employed.
  • the shape of the sealant blocking member on the color filter substrate and the array substrate is symmetrical, and is disposed at the sealant blocking member disposed opposite to the color filter substrate and the array substrate.
  • the distance between the color filter substrate and the array substrate is larger than the sum of the heights of the sealant blocking members on the color filter substrate and the array substrate.
  • a spacer is further provided between the liquid crystal and the sealant blocking member.
  • the pattern of the outer contour of the sealant blocking member formed by the photoresist film by the first patterning process includes: And developing, the photoresist film forming a cavity of the sealant blocking member as a preferred embodiment of the above technical solution, in the method for fabricating the liquid crystal display substrate, the first film is formed by a second patterning process Forming the pattern of the sealant blocking member, comprising: sequentially exposing, developing, and etching the first film, and peeling off a photoresist constituting the outer contour of the cavity, so that the first film forms a sealant Block the graphic of the part.
  • the first film in the method of fabricating the liquid crystal display substrate, when the first film is formed on an edge region of the predetermined alignment film formation region, the first film covers at least the outer contour of the cavity; Forming, by the second patterning process, the first film to form a pattern of the sealant blocking member, comprising: forming, by a second patterning process, the first film as an outer contour of the sealant blocking member outside the outer contour of the cavity Graphics.
  • the step of peeling off the photoresist constituting the outer contour of the cavity includes: using a solution to seal the outer contour of the outer contour of the outer contour of the sealing member The dissolution treatment leaves the portion of the outer contour of the sealant blocking member as a pattern of the sealant blocking member.
  • the outer contour of the cavity corresponds to a cavity and an opening of a predetermined sealant blocking member.
  • the method further includes: forming an alignment film in a predetermined alignment film formation region.
  • Another aspect of the present invention provides a method for fabricating the above display device, comprising the steps of: separately preparing a liquid crystal display substrate according to the method for preparing a liquid crystal display substrate as described above The color filter substrate and the array substrate; the sealant is applied to the sealant block of the color filter substrate and/or the array substrate; and the color filter substrate and/or the array substrate coated with the sealant is sealed In a state in which the sealant blocking member is opposed, a vacuum is applied to the cartridge; a liquid crystal is disposed between the color filter substrate and the array substrate; and the sealant is cured to form a display device.
  • the sealant is applied to the sealant blocking member of the color filter substrate and/or the array substrate, so that the sealant is coated.
  • the center is aligned with the center of the opening of the corresponding sealant blocking member.
  • the width of the opening of the sealant blocking member is larger than the design width of the coated sealant.
  • the volume of the sealant is larger than the total volume of the cavity of the sealant blocking member on the color filter substrate and the array substrate.
  • a sealant blocking member is provided on an edge region of a predetermined alignment film forming region, and the sealant blocking member has an opening and a cavity communicating with the opening, in formation
  • the opening of the sealant blocking member allows the alignment film to be applied only to a small portion of the cavity, ensuring that the filled frame sealant and the cavity have sufficient etching area to provide a bonding force to achieve sealing.
  • the precise control of the position of the sealant to reduce the distance from the display area, and thus applied to the display device achieves a significant reduction in the frame of the display device.
  • the above various technical solutions of the present invention do not affect the printing quality of the alignment film of the display region on the one hand, and on the other hand, the frame sealant can be coated on the printing region of the alignment film by using the sealant blocking member.
  • the printing area of the outer peripheral alignment film of the display area is effectively utilized, thereby realizing the effect that the frame of the display device is greatly reduced.
  • Figure i is a schematic structural view of a prior art liquid crystal cell after being framed
  • FIG. 2 is a cross-sectional view showing a liquid crystal display substrate according to a first embodiment of the present invention after a sealant blocking member is disposed;
  • FIG. 3 is a schematic plan view of a liquid crystal display substrate according to a first embodiment of the present invention.
  • FIG. 4 is a schematic cross-sectional view showing a sealing material blocking member according to a first embodiment of the present invention
  • FIG. 5 is a cross-sectional view showing the sealant blocking member of the frame body having a trapezoidal shape in the first embodiment of the present invention.
  • Think ⁇ is a cross-sectional view showing the sealant blocking member of the frame body having a trapezoidal shape in the first embodiment of the present invention.
  • FIG. 6 is a schematic cross-sectional view showing the sealant blocking member of the frame body having a stepped polygon in the first embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of a display device according to a second embodiment of the present invention.
  • FIG. 8 is a schematic flow chart of a method for fabricating a liquid crystal display substrate according to a first preparation example of the present invention
  • FIG. 9 is a schematic flow chart of a method for fabricating a liquid crystal display substrate and a display device according to a second preparation example of the present invention
  • Figure 10 is a schematic view showing a method of fabricating a liquid crystal display substrate according to a second preparation example of the present invention.
  • FIG. 2 is a schematic cross-sectional view of a liquid crystal display substrate according to a first embodiment of the present invention after a sealant blocking member is disposed;
  • FIG. 3 is a top plan view of the liquid crystal display substrate according to the first embodiment of the present invention.
  • an embodiment of the present invention provides a liquid crystal display substrate including a substrate substrate 11 and a thin film layer 12 formed on the substrate substrate 11.
  • the alignment film 14 is divided into a display region 141 in the inner dotted line frame as shown in FIG. 3, and a non-display region between the inner dotted frame and the outer dotted frame. 142.
  • a sealant blocking member 13 is formed on the film layer 12, and the sealant blocking member 13 is disposed on the edge region in the region where the predetermined alignment film 14 is formed, and is particularly preferably disposed in the non-display region 142.
  • a cavity 131 is formed between the sealant blocking member 13 and the film layer 12.
  • the top of the sealant blocking member 13 is provided with an opening 132 communicating with the cavity 131.
  • the base substrate 11 may be made of a transparent material such as glass, quartz or resin, and the invention is not limited.
  • the sealant blocking member 13 of the above structure when the alignment layer 14 is formed, since the thickness of the alignment layer 14 is very thin (usually a few ⁇ m, for example, about 0 08 ⁇ m), the predetermined alignment film is formed. When the alignment film 14 is formed in the formation region, only a very small amount of the alignment film is present. The material 14 is inserted into the cavity 131, so that the bonding strength between the inner surface and the bottom surface of the cavity 131 and the sealant disposed later is not greatly affected. On the contrary, since the above-mentioned frame sealant blocking member is provided! 3. The bonding area of the sealant is ensured, thereby advantageously increasing the bonding strength of the sealant, and thereby advantageously increasing the strength of the corresponding liquid crystal display substrate.
  • the liquid crystal display substrate is a color film substrate
  • a thin film layer! 2 is a flat layer
  • the material of the flat layer may be a resin material which is a flat layer which is commonly used in the art.
  • the liquid crystal display substrate is an array substrate
  • a thin film layer! 2 is an insulating layer
  • the material of the insulating layer may be silicon nitride.
  • the material of the sealant blocking member 13 is the same as that of the film layer 12, which is advantageous for the bonding strength between the sealant blocking member 13 and the film layer 12, thereby improving the strength of the liquid crystal display substrate.
  • the width of the opening 132 is smaller than the width of the sealant blocking member 13, and the width of the opening 132 is greater than or equal to half the width of the sealant blocking member 13.
  • Fig. 4 which is a cross-sectional view of the sealant block member 13
  • the cavity 131 is rectangular, wherein the width of the opening 132 is a, and the width of the sealant blocking member 13 is b, a is greater than or equal to b/2.
  • a should be less than 1>.
  • the width of the opening 132 is smaller than the width of the bottom surface of the cavity 131, and the width of the opening 132 is greater than or equal to half the width of the bottom surface of the cavity 131.
  • the size of the opening 132 is very preferable, and on the one hand, the material of the alignment film is excessively prevented from entering the cavity 131 when the alignment film 14 is disposed, thereby affecting the bonding strength between the sealant and the sealant blocking member 13. On the other hand, the sealant can be introduced into the opening 132 to achieve the purpose of combining the liquid crystal display substrate with high strength.
  • the cross section of the cavity 131 perpendicular to the base substrate 11 is a rectangle, a trapezoid, an inverted triangle, an inverted trapezoid, a stepped polygon on both sides, a circular arc or other polygons, and the like.
  • the cross section of the cavity 131 perpendicular to the base substrate 11 is a rectangle, a trapezoid, or a stepped polygon.
  • the cross section of the cavity 131 perpendicular to the base substrate II is trapezoidal, and the cross section of the cavity 131 perpendicular to the base substrate 11 in FIG. 6 is a polygonal shape having a stepped shape on both sides. Also based on the consideration of the preparation process, it is preferable that the width of the cross section of the cavity 131 parallel to the base substrate 11 is larger than the width of the opening 132.
  • the height of the sealant blocking member 13 is greater than or equal to 1 m. This height can more effectively limit the role of the sealant. This height should be as large as possible while ensuring that the thickness of the peripheral casing after the liquid crystal display substrate is made into a box is small.
  • the sealant blocking member 13 has a width greater than or equal to about 1 mm, preferably from about 1 mm to 2 mm, and the width of about 1 mm is preferred.
  • the specific width can be selected by those skilled in the art as needed. Too wide is not conducive to the narrowing of the liquid crystal, and is too narrow to ensure the bonding strength of the liquid crystal substrate.
  • the side of the sealant blocking member 13 adjacent to the display area has a distance from the edge of the display area 141 of greater than or equal to about 0.2 mm, preferably about 0, 2 mm to 0.5 mm.
  • the specific distance can be selected by a person skilled in the art as needed. Too wide is not conducive to the narrowing of the liquid crystal, and is too narrow to ensure the adhesion strength of the liquid crystal substrate.
  • the beneficial effects of the embodiments of the present invention are as follows:
  • the liquid crystal display substrate is provided with a sealant blocking member on an edge region in a predetermined alignment film formation region, and the opening of the sealant barrier member makes the alignment film when the alignment film is formed Only a small portion of the material is applied to the cavity, ensuring that the filled frame sealant has sufficient contact area with the cavity to provide a sticky Pf force, enabling precise control of the position of the sealant to reduce the distance from the display area. Thereby achieving a narrow bezel preparation of the display device.
  • Second embodiment Second embodiment
  • an embodiment of the present invention provides a display device including a color film substrate 210 and an array substrate 220 disposed opposite to each other.
  • a liquid crystal 30 is formed between the two substrates.
  • the color film substrate 210 and the array substrate 220 are as in the first embodiment.
  • the opening I 32A of the sealant blocking member I 3A on the two substrates and the opening 132B of the sealant blocking member 13B are oppositely disposed, and the sealant 7 is disposed on the sealant blocking member 13A and the frame sealant.
  • the sealant 7 is easily restrained at the position of the sealant blocking members i3A, 13B.
  • the shapes of the sealant blocking members 13A and 13B on the color filter substrate 210 and the array substrate 220 are symmetrical. Therefore, when the two substrates are opposed to each other, the sealant blocking members 13A and 13B can be disposed opposite to each other.
  • the distance between the two substrates is greater than the sum of the heights of the sealant blocking members on the two substrates, so that sufficient sealant 7 enters the cavity of the sealant blocking member, and can be stably disposed on the two substrates. Between, thereby ensuring the bonding strength between the two substrates.
  • a flat layer 12A and an alignment film are sequentially disposed on the base substrate 11A.
  • the array substrate 220 is provided with an insulating layer 12B and an alignment film 14B in this order on the base substrate 11B.
  • sealant blocking members i3A, 13B are provided on the non-display regions 142A, 142B of the predetermined alignment films A, 14B. It should be noted that a spacer may be disposed between the liquid crystal 30 and the sealant blocking member 13A and the sealant blocking member 13B, in the L-4, hill.
  • the display device may be: a liquid crystal panel, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like, or any display product or component.
  • the liquid crystal display substrate used in the display device according to the embodiment of the present invention is provided with a sealant blocking member on an edge region of a predetermined alignment film formation region, and the opening of the sealant barrier member is an alignment film when the alignment film is formed.
  • a sealant blocking member on an edge region of a predetermined alignment film formation region
  • the opening of the sealant barrier member is an alignment film when the alignment film is formed.
  • an embodiment of the present invention provides a method for fabricating a liquid crystal display substrate, comprising: Step Si, providing a substrate, and forming a thin film layer on the substrate.
  • the substrate substrate needs to be cleaned; the film layer formed on the substrate substrate may be deposited, coated, sputtered, or the like, and the invention is not limited.
  • Step S2 forming a photoresist film on the film layer, and forming a pattern of the cavity of the sealant block by the first patterning process (ie, forming a cavity contour of the sealant blocker) Graphics).
  • the cross section of the cavity perpendicular to the substrate may be a rectangle, a trapezoid, an inverted triangle, a trapezoidal shape, a stepped polygon on both sides, a circle or other polygon, and the like.
  • the cross section of the cavity is an inverted triangle or a circular shape
  • an additional preparation process is required. Therefore, based on the simpler consideration of the preparation process, it is preferable that the cross section of the cavity perpendicular to the substrate is rectangular, trapezoidal, or two.
  • the side is a stepped polygon.
  • Step S3 based on the base substrate on which the above steps are completed, a first film is formed on the edge region of the predetermined alignment film formation region.
  • Step S4 the first film is formed into a pattern of the sealant blocking member by the second patterning process.
  • the photoresist film is formed into a pattern of the cavity of the sealant blocking member by the first patterning process, including:
  • the photoresist film is formed into a pattern of a cavity of the sealant blocking member by exposure and development.
  • the first film is formed into a pattern of the sealant blocking member by the second patterning process, including:
  • the first film is sequentially exposed, developed, and etched to form a sealant blocking member that contains the photoresist in the cavity; then the photoresist in the cavity is dissolved and treated with a solution, and the first film is formed into a frame.
  • the pattern of the glue blocking component is sequentially exposed, developed, and etched to form a sealant blocking member that contains the photoresist in the cavity; then the photoresist in the cavity is dissolved and treated with a solution, and the first film is formed into a frame.
  • the pattern of the glue blocking component is sequentially exposed, developed, and etched to form a sealant blocking member that contains the photoresist in the cavity; then the photoresist in the cavity is dissolved and treated with a solution, and the first film is formed into a frame.
  • the pattern of the glue blocking component is sequentially exposed, developed, and etched to form a sealant blocking member that contains the photoresist in the cavity; then the photoresist in the cavity is dissolved and treated with a solution
  • the side of the sealant blocking member adjacent to the display area is at a distance greater than or equal to 0, 2 mm from the edge of the display area.
  • a preparation example of the present invention provides a liquid crystal display substrate of the first embodiment and a preparation method of the display substrate of the second embodiment, which are described in more detail, and includes:
  • Step SI provides a substrate on which a thin film layer 12 is formed.
  • the substrate substrate needs to be cleaned; the film layer formed on the substrate substrate may be deposited, coated, sputtered, or the like, and the invention is not limited.
  • the liquid crystal display substrate may be a color film substrate.
  • the film layer 12 is a flat layer, and the material of the flat layer may be a resin material as a flat layer commonly used in the art.
  • the liquid crystal display substrate may also be an array substrate, and the film layer 12 is an insulating layer.
  • the material of the edge layer is silicon nitride.
  • Step S2 forming a photoresist film on the film layer 12, and forming a pattern of the cavity contour 16 complementary to the cavity of the predetermined sealant blocking member 13 by a first patterning process.
  • the photoresist film is patterned by a first patterning process to form a cavity contour 16 complementary to the cavity 131 and the opening 132 of the predetermined sealant blocking member 13.
  • the shape of the port 132 corresponds to each other. Therefore, the cavity of the blocking member 13 is blocked according to the predetermined sealant! 31 and opening!
  • the shape of the outer contour 16 of the cavity may be a rectangle, a trapezoid, an inverted triangle, an inverted trapezoid, a stepped polygon on both sides, a circle or other polygon, and the like.
  • the formation height of the photoresist film 15 is preferably the same as the height of the predetermined sealant blocking member 13.
  • the first patterning process is a patterning process commonly used in the art, and generally includes steps of photoresist coating, exposure, development, etching, photoresist stripping, etc., to finally form a photoresist cavity of the above shape.
  • Outline 16 This patterning process is well known to those skilled in the art and will not be described in detail herein.
  • the cross section of the cavity 131 perpendicular to the substrate substrate is an inverted triangle, a circle, or the like, an additional preparation process is required. Therefore, based on the simpler consideration of the preparation process, the cavity is preferably perpendicular to the substrate.
  • Step S3 based on the substrate on which the above step S2 is completed, the first film 17 is formed in an edge region of the predetermined alignment film formation region (ie, in the outer dotted line frame of FIG. 3) (ie, a predetermined sealant blocking member forming region). .
  • the first film 17 covers the outer contour 16 of the cavity.
  • the first film 17 can be formed by various methods such as deposition, coating, sputtering, etc., and the invention is not limited.
  • Step S4 the first film is formed into a pattern of the outer contour 18 of the sealant blocking member outside the outer contour 16 of the cavity by a second patterning process.
  • the second patterning process is a patterning process commonly used in the art, and generally includes steps of photoresist coating, exposure, development, etching, stripping, etc., to finally form a frame blocking adhesive block of the above shape.
  • the outer contour of the component 18. This patterning process is well known to those skilled in the art and will not be described in detail herein.
  • Step S5 after the solution is dissolved in the outer contour 16 of the outer contour 18 of the sealant blocking member by the solution, the first film is formed into a pattern of the sealant blocking member 13.
  • the sealant blocking member 13 has a distance from the edge of the display region 141 of greater than or equal to about 0, 2 mm.
  • the color filter substrate 210 and the array substrate 220 provided with the sealant blocking members I3A and 13B, respectively, may be formed by the above steps S1-S5 as required, and then the following steps are performed to prepare the display:
  • Step S6 an alignment film 14A is provided on a predetermined alignment film formation region of the color filter substrate 210, and orientation of the alignment film is performed by a rubbing process;
  • the alignment film 14B is provided on a predetermined alignment film formation region of the array substrate 220, and the alignment of the alignment film is performed by a rubbing process;
  • the above method of forming the alignment film may be a method commonly used in the art, and will not be described in detail herein.
  • Step S7 the color filter substrate 210 and the array substrate 220 obtained in the step S6 are subjected to a coating process of the sealant 7 so that the center of the sealant coating is aligned with the centers of the openings 132A and 132B of the sealant blocking member.
  • the width of the opening 132A and the opening 132B of the preferred sealant blocking member is greater than the design width of the coated sealant, so that the sealant can enter the cavity through the opening; and preferably the sealant volume is larger than the cavity 131A and The total volume of the 131B, so that the frame sealant fills the cavities 131A and 131B of the sealant blocking member between the two substrates, and a part of the sealant is exposed outside the cavity 131A and 131B, and further ensures the two substrates.
  • the strength of the bond is provided.
  • the sealant coating process may be selected to be applied simultaneously on the two substrates (the color film substrate 210 and the array substrate 220), or may be applied only on one of the substrates. In order to ensure the adhesive strength, it is preferred to simultaneously apply the sealant on both substrates.
  • the height of the front panel seal of the two substrates is greater than the height of the sealant of the sealant, so that the sealant on the two substrates can be bonded together.
  • Step S8 the color-coated substrate 210 and/or the array substrate 220 coated with the sealant obtained in the step S7 are vacuum-aligned in a state in which the sealant blocking member is opposed. And a liquid crystal 30 is disposed between them, and after the frame sealant is cured, a display device is formed (as shown in FIG. 7).
  • step S8 other steps for preparing the display device which are not related to the patent application of the present invention are omitted, and these steps are also necessary in actual production, and those skilled in the art can add relevant steps commonly used in the art as needed. It will not be described in detail here.
  • a sealant blocking member is disposed on an edge region of a predetermined alignment film forming region, and the sealant blocking member has an opening and a cavity communicating with the opening, when the alignment film is formed,
  • the opening of the sealant blocker allows the alignment film to be applied only to a small portion of the cavity, ensuring that the filled sealant has sufficient contact area with the cavity to provide adhesion and precise control of the position of the sealant.
  • the display device is applied to realize narrow frame preparation.

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

Abstract

提供了一种液晶显示基板、显示装置及它们的制备方法。液晶显示基板包括衬底基板（11）及形成于衬底基板（11）上的薄膜层（12），薄膜层（12）上形成有封框胶阻挡部件（13），封框胶阻挡部件（13）设置于预定的取向膜（14）形成区域的边缘区域上，封框胶阻挡部件（13）与薄膜层（12）形成一腔体（131），封框胶阻挡部件（13）的顶部设置有与腔体（131）连通的开口（132）。在液晶显示基板中，在预定的取向膜（14）形成区域的边缘区域上设置封框胶阻挡部件（13），在形成取向膜（14）时，封框胶阻挡部件（13）的结构使取向膜（14）只能涂覆至腔体（131）内的一小部分，确保灌注的封框胶（7）与腔体（131）具有足够的接触面积以提供粘附力，实现封框胶（7）位置的精确控制以减少与显示区域之间的距离，从而实现显示装置的窄边框制备。

Description

本发明涉及液晶显示器制造技术领域， 尤;
：装置及它们的制备方法。
薄膜晶体管型液晶显示器 (Thin Film Transistor Liquid Crystal Display ， TFT-LCD) 已成为显示领域的主流产品， 而液晶面板是 TFTiCD的一个重要 组成部分。
液晶面板是由阵列基板和彩膜基板通过封框胶进行密封、 对盒形成的， 对盒封框的工艺的好坏将影响液晶面板的品质， 因此， 阵列基板与彩膜基板 的真空对盒封框的工艺十分重要。 液晶面板对盒工艺的具体步骤通常为： 首 先， 在阵列基板和彩膜基板中一张基板的四周使 ^封框胶涂布装置涂覆封框 胶； 然后，在另一张基板中央使用滴下注入法 (ODF， One Drop Fiii)滴加液晶； 之后， 真空贴合两张基板； 最后， 进行封框胶固化： 用紫外光 (UV， Ultraviolet Rays) 短时间照射使封框胶部分固化， 放入到 UV 固化室中进一步固化封框 胶中的光敏成分， 最后在高温炉中将未固化的封框胶完全固化， 从而完成对 -I-乙
图 I为现有技术中液晶面板的截面示意图 （图 1为简化示意图， 与本发 明申请无关的结构未示出）。 主要由彩膜基板 10、 阵列基板 20以及两基板之 间的液晶 30三部分组成， 彩膜基板 10至少包括设置于衬底基板 1之上的平 坦层 3和设置于平坦层 3之上的取向膜 4; 阵列基板 20至少包括设置于衬底 基板 2之上的绝缘层 5和取向膜 6。 彩膜基板 10和阵列基板 20由封框胶 7 粘接、 密封后形成液晶盒， 取向膜 4和取向膜 6紧邻液晶 30。
液晶面板的显示区域之外具有一环形的边框。 而窄边框 （Narrow Bezel) 是目前液晶显示面板的发展趋势。 窄边框液晶显示面板可以使产品具有更小 的体积和重量。 特别是小尺寸的平板电脑和手机 ^的液晶显示面板， 对窄边 现有技术中， 通常封框胶涂覆区域与设计的取向膜印刷区域保持一定的 安全距离 D， 以避免封框胶因取向膜直接接蝕损失粘附力； 同时因封框胶涂 覆的对位精度、 胶宽精度以及取向膜印刷精度的考虑， 设计的封框胶涂覆区 域到取向膜印刷区域的安全距离 D需要考虑增加上述各精度的误差值。另外， 为了防止取向膜边缘在制作日寸有不良的区域， 所以， 取向膜通常分显示区域 和在其周边区域的非显示区域。 综合考虑以上因素， 在现有的技术中， 封框 胶内侧距离取向膜的显示区域边缘至少需要大约 1.2mm。 在进行液晶显示装 置的周边设计的时候， 由于该距离的存在， 窄边框设计很难付诸实践， 因此, 优化周边封框胶与取向膜的设计是当务之急。
本发明的目的是提供一种液晶显示基板、 显示装置及它们的制备方法， 其中在液晶显示基板上设置封框胶阻挡机构， 在封框胶阻挡机构上设置封框 胶， 可以使封框胶的位置及宽度得到限制， 实现封框胶设置于取向膜的边缘 区域， 解决现有液晶盒工艺中封框胶与取向膜边缘之间的距离过大， 从而造 成显示面板的边框宽度无法减小的问题。
本发明的目的是通过以下技术方案实现的：
根据本发明申请的一个方面， 提供一种液晶显示基板， 包括衬底基板及 形成于所述衬底基板上的薄膜层， 所述薄膜层上形成有封框胶阻挡部件， 所 述封框胶阻挡部件设置于预定的取向膜形成区域的边缘区域上， 所述封框胶 阻挡部件与所述薄膜层形成一腔体， 所述封框胶阻挡部件的顶部设置有与所 述腔体连通的开口。
作为上述技术方案的优选方案， 在上述液晶显示基板中， 所述封框胶阻 挡部件设置于预定的取向膜形成区域的非显示区域内。
作为上述技术方案的优选方案， 所述液晶显示基板为彩膜基板， 所述薄 膜层为平坦层， 所述平坦层的材料为树脂材料。
作为上述技术方案的优选方案， 所述液晶显示基板为阵列基板， 所述薄 膜层为绝缘层， 所述绝缘层的材料为氮化硅。
作为上述技术方案的优选方案， 在上述液晶显示基板中， 所述封框胶阻 挡部件的材料与所述薄膜层的材料相同。
作为上述技术方案的优选方案， 在上述液晶显示基板中， 所述开口的宽 度小于所述封框胶阻挡部件的宽度， 并且所述开口的宽度大于或等于所述封 框胶阻挡部件的宽度的一半。
作为上述技术方案的优选方案， 在上述液晶显示基板中， 所述开口的宽 度小于所述腔体底面的宽度， 并且所述开口的宽度大于或等于所述腔体底面 的宽度的一半。
作为上述技术方案的优选方案， 在上述液晶显示基板中， 所述腔体的垂 直于所述衬底基板的截面为矩形、 梯形或两侧为阶梯状的多边形。
作为上述技术方案的优选方案， 在上述液晶显示基板中， 所述腔体的平 行于所述衬底基板的截面的宽度大于所述开口的宽度。
作为上述技术方案的优选方案， 在上述液晶显示基板中， 所述封框胶阻 挡部件的高度大于或等于约 1μιη。
作为上述技术方案的优选方案， 在上述液晶显示基板中， 所述封框胶阻 挡部件与显示区域相近的一侧， 距离所述显示区域的边缘的距离大于或等于 约 0.2mm » 优选为约 0,2mm 0,5mm。
作为上述技术方案的优选方案， 在上述液晶显示基板中， 所述封框胶阻 挡部件的宽度大于或等于约 1mm, 优选为约 imm- 2mm。
本发明申请的另一方面， 提供了一种显示装置， 包括相对设置的彩膜基 板和阵列基板， 所述彩膜基板和阵列基板之间形成有液晶， 所述彩膜基板和 所述阵列基板采用如上所述的液晶显示基板。
作为上述技术方案的优选方案， 在上述显示装置中， 彩膜基板和阵列基 板上的封框胶阻挡部件的形状是对称的， 在彩膜基板和阵列基板相对设置的 封框胶阻挡部件处设置有封框胶。
作为上述技术方案的优选方案， 在上述显示装置中， 彩膜基板和阵列基 板之间的距离大于彩膜基板和阵列基板上的封框胶阻挡部件的高度之和。
作为上述技术方案的优选方案， 在上述显示装置中， 液晶与封框胶阻挡 部件之间还设置有隔垫物。
本发明申请的另一方面， 提供了上述液晶显示基板的制备方法， 包括以 下步骤：
提供一衬底基板， 在所述衬底基板上形成薄膜层； 在所述薄膜层上形成 光刻胶薄膜， 通过第一构图工艺使所述光刻胶薄膜形成封框胶阻挡部件的腔 体外轮廓的图形； 基于完成上述步骤的所述衬底基板， 在预定的取向膜形成 区域的边缘区域上形成第一薄膜； 通过第二构图工艺使所述第一薄膜形成所 述封框胶阻挡部件的图形。
作为上述技术方案的优选方案， 在所述液晶显示基板的制备方法中， 所 述通过第一构图工艺使所述光刻胶薄膜形成封框胶阻挡部件的腔体外轮廓的 图形， 包括： 通过曝光和显影， 使所述光刻胶薄膜形成封框胶阻挡部件的腔 作为上述技术方案的优选方案， 在所述液晶显示基板的制备方法中， 所 述通过第二构图工艺使所述第一薄膜形成所述封框胶阻挡部件的图形，包括： 依次通过曝光、 显影和刻蚀所述第一薄膜， 及剥离构成所述腔体外轮廓的光 刻胶， 使所述第一薄膜形成封框胶阻挡部件的图形。
作为上述技术方案的优选方案， 在所述液晶显示基板的制备方法中， 在 预定的取向膜形成区域的边缘区域上形成第一薄膜时， 使得第一薄膜至少覆 盖所述腔体外轮廓； 所述通过第二构图工艺使所述第一薄膜形成所述封框胶 阻挡部件的图形， 包括： 通过第二构图工艺使第一薄膜形成为包在腔体外轮 廓外的封框胶阻挡部件外轮廓的图形。
作为上述技术方案的优选方案， 在所述液晶显示基板的制备方法中， 剥 离构成所述腔体外轮廓的光刻胶的歩骤包括： 用溶液对封框胶阻挡部件外轮 廓内的腔体外轮廓溶解处理， 留下封框胶阻挡部件外轮廓的部分为封框胶阻 挡部件的图形。
作为上述技术方案的优选方案， 在所述液晶显示基板的制备方法中， 所 述腔体外轮廓与预定的封框胶阻挡部件的腔体及开口相互补对应。
作为上述技术方案的优选方案， 在所述液晶显示基板的制备方法中， 还 进一步包括： 在预定的取向膜形成区域形成取向膜。
本发明申请的另一方面， 提供了上述显示装置的制备方法， 包括以下步 骤： 按照如上所述的液晶显示基板的制备方法， 分别制备作为液晶显示基板 的彩膜基板和阵列基板； 将封框胶涂覆到彩膜基板和 /或阵列基板的封框胶阻 挡部件上； 对涂覆有封框胶的彩膜基板和 /或阵列基板， 在封框胶阻挡部件相 对的状态下， 进行真空对盒； 在彩膜基板和阵列基板之间设置有液晶； 封框 胶固化后， 形成显示装置。
作为上述技术方案的优选方案， 在所述显示装置的制备方法中， 将封框 胶涂覆到彩膜基板和 /或阵列基板的封框胶阻挡部件上的步骤中， 使得封框胶 涂覆的中心与相应的封框胶阻挡部件的开口的中心对齐。
作为上述技术方案的优选方案， 在所述显示装置的制备方法中， 封框胶 阻挡部件的开口的宽度大于涂覆封框胶的设计宽度。
作为上述技术方案的优选方案， 在所述显示装置的制备方法中， 所述封 框胶的体积大于彩膜基板和阵列基板上的封框胶阻挡部件的腔体的总体积。
根据本发明的上述各技术方案的有益效果如下： 在预定的取向膜形成区 域的边缘区域上设置封框胶阻挡部件， 并使封框胶阻挡部件具有开口和与开 口连通的腔体， 在形成取向膜时， 该封框胶阻挡部件的开口使取向膜只能涂 覆至腔体内的一小部分， 确保灌注的封框胶与腔体具有足够的接蝕面积以提 供粘 1 力， 实现封框胶位置的精确控制以减少与显示区域间的距离， 进而应 用于显示装置， 实现了显示装置边框大幅度减小的效果。 也就是说， 本发明 的上述各技术方案， 一方面不会影响显示区域取向膜的印刷质量， 另一方面， 利用该封框胶阻挡部件使得封框胶能够涂覆在取向膜的印刷区域， 有效利用 了显示区域外周取向膜的印刷区域， 从而实现了显示装置边框大幅度减小的 效果。
图 i为现有技术液晶盒封框后的结构示意图；
图 2为本发明第一实施例所述液晶显示基板在设置了封框胶阻挡部件之 后的剖面示意图；
图 3为本发明第一实施例所述液晶显示基板的俯视示意图；
图 4为本发明第一实施例所述封框胶阻挡部件的剖面示意图；
图 5为本发明第一实施例中腔体为梯形的所述封框胶阻挡部件的截面示 思^ ;
图 6为本发明第一实施例中腔体为阶梯状多边形的所述封框胶阻挡部件 的截面示意图；
图 7为本发明第二实施例所述显示装置的结构示意图；
图 8为本发明第一制备例所述制作液晶显示基板的方法流程示意图； 图 9为本发明第二制备例所述制作液晶显示基板和显示装置的方法流程 示意图；
图 10为本发明第二制备例制作液晶显示基板的方法的示意图。
下面结合说明书 Pft图对本发明实施例的实现过程进行详细说明。 需要注 意的是， 自始至终相同或类似的标号表示相同或类似的元件或具有相同或类 似功能的元件。 下面遥过参考 ^图描述的实施例是示例性的， 仅用于解释本 发明， 而不能理解为对本发明的限制。
第一实施例
图 2为本发明第一实施例所述液晶显示基板在设置了封框胶阻挡部件之 后的剖面示意图； 图 3为本发明第一实施例所述液晶显示基板的俯视示意图。
参照图 2和图 3， 本发明实施例提供一种液晶显示基板， 包括衬底基板 11及形成于衬底基板 11上的薄膜层 12。为了防止取向膜 14边缘在制作时有 不良的区域， 所以， 取向膜 14分为如图 3所示的内侧虚线框内的显示区域 141、 和内侧虚线框和外侧虚线框之间的非显示区域 142。 在薄膜层 12上形 成有封框胶阻挡部件 13， 封框胶阻挡部件 13设置于预定的取向膜 14形成区 域内的边缘区域上， 特别优选设置在非显示区域 142内。
封框胶阻挡部件 13与薄膜层 12之间形成一腔体 131， 封框胶阻挡部件 13的顶部设置有与腔体 131连通的开口 132。 其中需要说明的是， 衬底基板 11可以选用玻璃、 石英、 树脂等透明材质， 本发明不做限制。
在设置了上述结构的封框胶阻挡部件 13之后， 在形成取向层 14时， 由 于取向层 14的厚度非常薄 （通常为百分之几 μπι, 比如： 大约 0 08μηι)， 所 以预定的取向膜 14形成区域内形成取向膜 14时， 仅会有非常少量的取向膜 14材料迸入上述腔体 131 内， 所以不会太大地影响该腔体 131内侧表面及底 面与其后设置的封框胶之间的结合强度。 相反， 由于设置了上述封框胶阻挡 部件！ 3， 确保了封框胶的结合面积， 从而有利地增加了封框胶的结合强度， 进而有利地增加了相应液晶显示基板的强度。
可选的， 液晶显示基板为彩膜基板， 薄膜层！2为平坦层， 平坦层的材料 可以为本领域常用的作为平坦层的树脂材料。
可选的， 液晶显示基板为阵列基板， 薄膜层！2为绝缘层， 绝缘层的材料 可以为氮化硅。
优选的， 封框胶阻挡部件 13的材料与薄膜层 12的材料相同， 这样有利 于封框胶阻挡部件 13与薄膜层 12之间的结合强度， 从而提高液晶显示基板 的强度。
可选的， 开口 132的宽度小于封框胶阻挡部件 13的宽度， 并且开口 132 的宽度大于或等于封框胶阻挡部件 13的宽度的一半。 参见图 4, 为封框胶阻 挡部件 13的剖视图， 其腔体 131为矩形， 其中开口 132的宽度为 a, 封框胶 阻挡部件 13的宽度为 b, a大于或等于 b/2。 当然， 为了实现阻止形成取向膜 时的取向膜材料进入腔体 131 , a应当小于1>。
优选地， 所述开口 132的宽度小于所述腔体 131底面的宽度， 并且所述 开口 132的宽度大于或等于所述腔体 131的底面宽度的一半。
上述开口 132的大小是非常优选的，可以一方面防止在设置取向膜 14时， 取向膜的材料过多地进入腔体 131内从而影响封框胶与封框胶阻挡部件 13之 间的结合强度； 另一方面， 可以使封框胶进入该开口 132 , 从而达到高强度 结合液晶显示基板的目的。
可选的，腔体 131的垂直于衬底基板 11的截面为矩形、梯形、倒三角形、 倒梯形、 两侧为阶梯状的多边形、 圆弧形或其他多边形等等图形。 但是基于 制备工艺更简单的考虑， 优选的， 腔体 131的垂直于衬底基板 11的截面为矩 形、 梯形、 或两侧为阶梯状的多边形。 参考图 5和图 6示出的封框胶阻挡部 件 13的垂直于衬底基板 11的截面示意图。 图 5中， 腔体 131的垂直于衬底 基板 I I 的截面为梯形， 图 6中腔体 131的垂直于衬底基板 11的截面为两侧 为阶梯状的多边形。 同样基于制备工艺更筒单的考虑， 优选的， 腔体 131 的平行于衬底基板 11的截面的宽度大于开口 132的宽度。
优选的， 封框胶阻挡部件 13的高度大于或等于 l m。该高度可以更有效 地起到限制封框胶的作用。 该高度在保证小于液晶显示基板成盒后的周边盒 厚的前提下， 应该尽量的大。
优选地， 所述封框胶阻挡部件 13 的宽度大于或等于约 lmm， 优选为约 Imm-2mm, 该宽度为约 1mm是优选的。 该具体宽度本领域技术人员可以根 据需要进行选择， 太宽不利于液晶的窄边化， 太窄又不能保证液晶基板的粘 合强度。
优选的， 封框胶阻挡部件 13与显示区域相近的一侧， 距离显示区域 141 的边缘的距离大于或等于约 0.2mm, 优选为约 0,2mm- 0.5mm。 该具体距离本 领域技术人员可以根据需要进行选择， 太宽不利于液晶的窄边化， 太窄又不 能保证液晶基板的粘合强度。
本发明实施例有益效果如下： 提供的液晶显示基板， 在预定的取向膜形 成区域内的边缘区域上设置封框胶阻挡部件， 在形成取向膜时， 该封框胶阻 挡部件的开口使取向膜的材料只有一小部分被涂覆至腔体内， 确保灌注的封 框胶与腔体具有足够的接触面积以提供粘 Pf†力， 实现封框胶位置的精确控制 以减少与显示区域间的距离， 从而实现显示装置的窄边框制备。 第二实施例
参考图 7， 本发明实施例提供一种显示装置， 包括相对设置的彩膜基板 210和阵列基板 220, 两基板之间形成有液晶 30, 彩膜基板 210和阵列基板 220采用如上第一实施例中的液晶显示基板。
为了方便说明， 本实施例中使 ^了与第一实施例中相似的附图标记， 代 表相同或相应的结构。
优选的， 所述两基板上的封框胶阻挡部件 I 3A的开口 I 32A和封框胶阻 挡部件 13B的开口 132B相对设置， 封框胶 7设置于封框胶阻挡部件 13A和 封框胶阻挡部件 13B之间、 腔体 131A和腔体 131B内， 及开口 132A和开口 132B处。 封框胶 7被容易地限制在封框胶阻挡部件 i3A、 13B的位置上。 特别优选地， 彩膜基板 210和阵列基板 220上的封框胶阻挡部件 13A和 13B的形状是对称的。从而在上述两基板对盒时，能够使封框胶阻挡部件 13A 和 13B相对设置。
优选的，两基板之间的距离大于两基板上的封框胶阻挡部件的高度之和， 使得有充分的封框胶 7进入封框胶阻挡部件的腔体内， 能够被稳定地设置在 两基板之间， 从而确保两基板之间的结合强度。
其中，对于彩膜基板 210，在其衬底基板 11 A之上依次设置有平坦层 12A 和取向膜 对于阵列基板 220， 在其衬底基板 11B之上依次设置有绝缘 层 12B和取向膜 14B。
对于彩膜基板 210和阵列基板 220，在预定的取向膜 A、 14B的非显示 区域 142A、 142B上设置封框胶阻挡部件 i3A、 13Β。 需要说明的是， 液晶 30与封框胶阻挡部件 13A和封框胶阻挡部件 13B之间还可以设置隔垫物，在 L -4、小山
此外， 需要说明的是， 本发明实施例提供的显示装置可以为： 液晶面板、 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。
本发明实施例提供的显示装置所采用的液晶显示基板， 在预定的取向膜 形成区域的边缘区域上设置封框胶阻挡部件， 在形成取向膜时， 该封框胶阻 挡部件的开口使取向膜只能涂覆至腔体内的一小部分， 确保灌注的封框胶与 腔体具有足够的接触面积以提供粘附力， 实现封框胶位置的精确控制以减少 与显示区域间的距离， 从而实现显示装置的窄边框制备。 第一制备例
参考图 8, 本发明实施例提供一种液晶显示基板的制备方法， 包括： 步骤 Si， 提供一衬底基板， 在衬底基板上形成薄膜层。
具体的， 在形成薄膜层之前， 需要对衬底基板进行清洁； 在衬底基板上 形成薄膜层可以采用沉积、 涂覆、 溅射等多种方式， 本发明不做限制。
歩骤 S2， 在薄膜层上形成光刻胶薄膜， 通过第一构图工艺使光刻胶薄膜 形成封框胶阻挡部件的腔体的图形 （即： 形成封框胶阻挡部件的腔体外轮廓 的图形）。 该腔体的垂直于衬底基板的截面可以为矩形、 梯形、 倒三角形、 懷 梯形、 两侧为阶梯状的多边形、 圆形或其他多边形等等图形。
但是腔体的截面为倒三角形、 圆形等图形时， 需增加额外的制备工序， 因此， 基于制备工艺更简单的考虑， 优选腔体的垂直于衬底基板的截面为矩 形、 梯形、 或两侧为阶梯状的多边形。
步骤 S3， 基于完成上述步骤的衬底基板， 在预定的取向膜形成区域的边 缘区域上形成第一薄膜。
在本步骤， 优选的采用与薄膜层相同的材料形成第一薄膜。
步骤 S4， 通过第二构图工艺使第一薄膜形成封框胶阻挡部件的图形。 在上述各步骤中， 优选的， 步骤 S2中， 通过第一构图工艺使光刻胶薄膜 形成封框胶阻挡部件的腔体的图形， 包括：
通过曝光和显影， 使光刻胶薄膜形成封框胶阻挡部件的腔体的图形。 优选的， 步骤 S4中，通过第二构图工艺使第一薄膜形成封框胶阻挡部件 的图形， 包括：
依次通过曝光、 显影和刻蚀第一薄膜， 形成腔体内容纳有光刻胶的封框 胶阻挡部件； 然后用溶液对腔体内的光刻胶进行溶解处理后剥离， 使第一薄 膜形成封框胶阻挡部件的图形。
优选的， 封框胶阻挡部件与显示区域相近的一侧， 距离显示区域的边缘 的距离大于或等于 0,2mm。 第二制备例
参考图 9、 10， 本发明的制备例提供一种上述第一实施例的液晶显示基 板的以及第二实施例的显示基板更加详细说明的制备方法， 包括：
歩骤 SI， 提供一衬底基板， 在衬底基板上形成薄膜层 12。
具体的， 在形成薄膜层 12之前， 需要对衬底基板进行清洁； 在衬底基板 上形成薄膜层可以采用沉积、 涂覆、 溅射等多种方式， 本发明不做限制。
其中， 液晶显示基板可以为彩膜基板， 此时， 薄膜层 12为平坦层， 平坦 层的材料可以为本领域常用的作为平坦层的树脂材料。
其中， 液晶显示基板也可以为阵列基板， 此^, 薄膜层 12为绝缘层， 绝 缘层的材料为氮化硅。
步骤 S2， 在薄膜层 12上形成光刻胶薄膜 15， 通过第一构图工艺使光刻 胶薄膜形成与预定的封框胶阻挡部件 13的腔体相互补的腔体外轮廓 16的图 形。
优选的， 通过第一构图工艺使光刻胶薄膜形成与预定的封框胶阻挡部件 13的腔体 131及开口 132相互补的腔体外轮廓 16的图形。 口 132的形状互补对应。 因此， 根据预定的封框胶阻挡部件 13的腔体！31及 开口！32的形状， 该腔体外轮廓 16的垂直于衬底基板的截面可以为矩形、梯 形、 倒三角形、 倒梯形、 两侧为阶梯状的多边形、 圆形或其他多边形等等图 形。
在该步骤 S2中， 该光刻胶薄膜 15的形成高度优选与预定的封框胶阻挡 部件 13的高度相同。
在该步骤 S2中， 第一构图工艺是本领域常用的构图工艺， 通常包括光刻 胶涂覆、 曝光、 显影、 刻蚀、 光刻胶剥离等步骤， 最终形成上述形状的光刻 胶腔体外轮廓 16。 该构图工艺对于本领域技术人员来讲是熟知的， 这里不再 进行详细描述。 但是， 腔体 131 的垂直于衬底基板的截面为倒三角形、 圆形 等图形时， 需增加额外的制备工序， 因此， 基于制备工艺更简单的考虑， 优 选腔体的垂直于衬底基板的截面为矩形、 梯形、 或两侧为阶梯状的多边形。
歩骤 S3， 基于完成上述步骤 S2的基板， 在预定的取向膜形成区域（即： 图 3的外侧虚线框内） 的边缘区域 （即预定的封框胶阻挡部件形成区域） 形 成第一薄膜 17。
在本歩骤， 优选的采用与薄膜层相同的材料形成第一薄膜 17。 该第一薄 膜 17覆盖上述腔体外轮廓 16。 可以采用沉积、 涂覆、 溅射等多种方式来形 成该第一薄膜 17 , 本发明不做限制。
歩骤 S4， 通过第二构图工艺使第一薄膜形成为包在腔体外轮廓 16外的 封框胶阻挡部件外轮廓 18的图形。
在该步骤 S4中， 第二构图工艺是本领域常用的构图工艺， 通常包括光刻 胶涂覆、 曝光、 显影、 刻蚀、 剥离等步骤， 最终形成上述形状的封框胶阻挡 部件外轮廓 18。 该构图工艺对于本领域技术人员来讲是熟知的， 这里不再进 行详细描述。
步骤 S5， 用溶液对封框胶阻挡部件外轮廓 18内的腔体外轮廓 16溶解处 理后， 使第一薄膜形成封框胶阻挡部件 13的图形。优选的， 封框胶阻挡部件 13， 距离显示区域 141的边缘的距离大于或等于约 0,2mm。
可以根据要求， 利用上述步骤 S 1— S5 , 分别形成设置有封框胶阻挡部件 I3A和 13B的彩膜基板 210和阵列基板 220， 随后进行如下步骤， 以制备显 不 皇：
步骤 S6， 在彩膜基板 210的预定的取向膜形成区域设置取向膜 14A， 通 过摩擦工艺进行取向膜的取向；
在阵列基板 220的预定的取向膜形成区域设置取向膜 14B , 通过摩擦工 艺进行取向膜的取向；
以上形成取向膜的方法， 可以是本领域常用的方法， 这里不再进行详细 描述。
步骤 S7 , 对步骤 S6步骤得到的彩膜基板 210和阵列基板 220进行封框 胶 7的涂覆过程， 使得封框胶涂覆的中心与封框胶阻挡部件的开口 132A和 132B的中心对齐。 优选的封框胶阻挡部件的开口 132A和开口 132B的宽度 大于涂覆封框胶的设计宽度， 从而可以使封框胶经上述开口进入腔体； 进而 优选地封框胶体积大于腔体 131A和 131B的总体积， 从而可以确保封框胶填 满两基板之间的封框胶阻挡部件的腔体 131A和 131B后有部分封框胶露出在 腔体外 131A和 131B , 并且进一歩确保两基板之间的结合强度。
由于封框胶阻挡部件 I 3A和 13B的设置， 所以设置于其上的取向膜仅可 能有少部分进入腔体 131A和 I 31B内， 不会影响歩骤 S7步骤封框胶涂覆于 腔体 131 A和 13 IB内。
封框胶涂覆工艺可以选择在两基板 （彩膜基板 210和阵列基板 220 ) 上 同时涂覆的方式， 也可以采用仅在其中一个基板上涂覆。为了确保粘合强度， 优选在两基板上同时涂覆封框胶。
优选的， 两基板对盒前封框胶的高度已经大于封框胶阻挡部件高度， 这 样保证两基板上的封框胶可以粘结在一起。 步骤 S8， 对步骤 S7得到的涂覆了封框胶的彩膜基板 210和 /或阵列基板 220， 在封框胶阻挡部件相对的状态下， 真空对盒。 并使得它们之间设置有液 晶 30， 对封框胶固化后， 形成显示装置 （如图 7所示）。
在本步骤 S8的描述中，省略了与本发明专利申请没有关系的其他制备显 示装置的步骤， 这些步骤在实际生产中也是必要的， 本领域技术人员可以根 据需要增加相关本领域常用的步骤， 在此不再详细描述。
本发明实施例有益效果如下： 在预定的取向膜形成区域的边缘区域上设 置封框胶阻挡部件， 并使封框胶阻挡部件具有开口和与开口连通的腔体， 在 形成取向膜时， 该封框胶阻挡部件的开口使取向膜只能涂覆至腔体内的一小 部分， 确保灌注的封框胶与腔体具有足够的接触面积以提供粘附力， 实现封 框胶位置的精确控制以减少与显示区域间的距离， 进而应用于显示装置实现 窄边框制备。
显然， 本领域的技术人员可以对本发明进行各种改动和变型而不脱离本 发明的精神和范围。 这样， 倘若本发明的这些修改和变型属于本发明权利要 求及其等同技术的范围之内， 则本发明也意图包含这些改动和变型在内。

Claims

1. 一种液晶显示基板， 包括衬底基板及形成于所述衬底基板上的薄膜 层， 其特征在于， 所述薄膜层上形成有封框胶阻挡部件， 所述封框胶阻挡部 件设置于预定的取向膜形成区域的边缘区域上， 所述封框胶阻挡部件与所述 薄膜层形成一腔体， 所述封框胶阻挡部件的顶部设置有与所述腔体连通的开
□。
2. 如权利要求 1所述的液晶显示基板， 其特征在于， 所述封框胶阻挡部 件设置于预定的取向膜形成区域的非显示区域内。
3. 如权利要求 1或 2所述的液晶显示基板， 其特征在于， 所述液晶显示 基板为彩膜基板， 所述薄膜层为平坦层， 所述平坦层的材料为树脂材料。
4. 如权利要求 1至 3任一项所述的液晶显示基板， 其特征在于， 所述液 晶显示基板为阵列基板， 所述薄膜层为绝缘层， 所述绝缘层的材料为氮化硅。
5. 如权利要求 1至 4任一项所述的液晶显示基板， 其特征在于， 所述封 框胶阻挡部件的材料与所述薄膜层的材料相同。
6. 如权利要求 1至 5任一项所述的液晶显示基板， 其特征在于， 所述开 口的宽度小于所述封框胶阻挡部件的宽度， 并且所述开口的宽度大于或等于 所述封框胶阻挡部件的宽度的一半。
7. 如权利要求 1至 6任一项所述的液晶显示基板， 其特征在于， 所述开 口的宽度小于所述腔体底面的宽度， 并且所述开口的宽度大于或等于所述腔 体底面的宽度的一半。
8. 如权利要求 1至 7任一项所述的液晶显示基板， 其特征在于， 所述腔 体的垂直于所述衬底基板的截面为矩形、 梯形或两侧为阶梯状的多边形。
9. 如权利要求 1至 8任一项所述的液晶显示基板， 其特征在于， 所述腔 体的平行于所述衬底基板的截面的宽度大于所述开口的宽度。
10. 如权利要求 1至 9任一项所述的液晶显示基板， 其特征在于， 所述 封框胶阻挡部件的高度大于或等于约 1 μπι。
11. 如权利要求 1至 10任一项所述的液晶显示基板， 其特征在于， 所述 封框胶阻挡部件与显示区域相近的一侧， 距离所述显示区域的边缘的距离大 于或等于约 0,2mm， 优选为约 0.2mm-0.5mm。
12. 如权利要求 1至 11任一项所述的液晶显示基板， 其特征在于， 所述 封框胶阻挡部件的宽度大于或等于约 1mm, 优选为约 1mm 2mm。
13. 一种显示装置， 包括相对设置的彩膜基板和阵列基板， 所述彩膜基 板和阵列基板之间形成有液晶， 其特征在于， 所述彩膜基板和所述阵列基板 采用如权利要求 1至 12任一项所述的液晶显示基板。
14. 如权利要求 13所述的显示装置， 其特征在于， 彩膜基板和阵列基板 上的封框胶阻挡部件的形状是对称的， 在彩膜基板和阵列基板相对设置的封 框胶阻挡部件处设置有封框胶。
15. 如权利要求 13或 14所述的显示装置， 其特征在于， 彩膜基板和阵 列基板之间的距离大于彩膜基板和阵列基板上的封框胶阻挡部件的高度之 和。
16. 如权利要求 13至 15任一项所述的显示装置， 其特征在于， 液晶与 封框胶阻挡部件之间还设置有隔垫物。
17. 一种如权利要求 1 12任一项液晶显示基板的制备方法，其特征在于， 包括以下步骤：
提供一衬底基板， 在所述衬底基板上形成薄膜层；
在所述薄膜层上形成光刻胶薄膜， 通过第一构图工艺使所述光刻胶薄膜 形成封框胶阻挡部件的腔体外轮廓的图形；
基于完成上述歩骤的所述衬底基板， 在预定的取向膜形成区域的边缘区 域上形成第一薄膜；
通过第二构图工艺使所述第一薄膜形成所述封框胶阻挡部件的图形。
18. 如权利要求 17所述的液晶显示基板的制备方法， 其特征在于， 所述 通过第一构图工艺使所述光刻胶薄膜形成封框胶阻挡部件的腔体外轮廓的图 形， 包括：
通过曝光和显影， 使所述光刻胶薄膜形成封框胶阻挡部件的腔体外轮廓 的图形。
19. 如权利要求 17或 18所述的液晶显示基板的制备方法， 其特征在于， 所述通过第二构图工艺使所述第一薄膜形成所述封框胶阻挡部件的图形， 包 括：
依次通过曝光、 显影和刻蚀所述第一薄膜， 及剥离构成所述腔体外轮廓 的光刻胶， 使所述第一薄膜形成封框胶阻挡部件的图形。
20. 如权利要求 17至 19任一项所述的液晶显示基板的制备方法， 其特 征在于：
在预定的取向膜形成区域的边缘区域上形成第一薄膜时， 使得第一薄膜 至少覆盖所述腔体外轮廓；
所述通过第二构图工艺使所述第一薄膜形成所述封框胶阻挡部件的图 形， 包括： 通过第二构图工艺使第一薄膜形成为包在腔体外轮廓外的封框胶 阻挡部件外轮廓的图形。
21. 如权利要求 19或 20所述的液晶显示基板的制备方法， 其特征在于， 剥离构成所述腔体外轮廓的光刻胶的步骤包括： 用溶液对封框胶阻挡部 件外轮廓内的腔体外轮廓溶解处理， 留下封框胶阻挡部件外轮廓的部分为封 框胶阻挡部件的图形。
22. 如权利要求 Π至 21任一项所述的液晶显示基板的制备方法， 其特 征在于，
所述腔体外轮廓与预定的封框胶阻挡部件的腔体及开口相互补对应。
23. 如权利要求 17至 22任一项所述的液晶显示基板的制备方法， 其特 征在于， 还进一歩包括：
在预定的取向膜形成区域形成取向膜。
24. 一种如权利要求 13至 16任一项显示装置的制备方法， 其特征在于， 包括以下步骤：
按照如权利要求 17至 23任一项所述的液晶显示基板的制备方法， 分别 制备作为液晶显示基板的彩膜基板和阵列基板； 将封框胶涂覆到彩膜基板和 / 或阵列基板的封框胶阻挡部件上；
对涂覆有封框胶的彩膜基板和 /或阵列基板， 在封框胶阻挡部件相对的状 态下， 进行真空对盒； 并使得彩膜基板和阵列基板之间设置有液晶； 封框胶 固化后， 形成显示装置。
25. 如权利要求 24所述的显示装置的制备方法， 其特征在于， 将封框胶涂覆到彩膜基板和 /或阵列基板的封框胶阻挡部件上的步骤中， 使得封框胶涂覆的中心与相应的封框胶阻挡部件的开口的中心对齐。
26. 如权利要求 24或 25所述的显示装置的制备方法， 其特征在于， 封框胶阻挡部件的开口的宽度大于涂覆封框胶的设计宽度。
27 如权利要求 24至 26任一项所述的显示装置的制备方法，其特征在于， 所述封框胶的体积大于彩膜基板和阵列基板上的封框胶阻挡部件的腔体 的总体积。
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