CN112904627B - Liquid crystal display panel, manufacturing method thereof and liquid crystal display device - Google Patents

Liquid crystal display panel, manufacturing method thereof and liquid crystal display device Download PDF

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Publication number
CN112904627B
CN112904627B CN202110194125.2A CN202110194125A CN112904627B CN 112904627 B CN112904627 B CN 112904627B CN 202110194125 A CN202110194125 A CN 202110194125A CN 112904627 B CN112904627 B CN 112904627B
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China
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liquid crystal
substrate
spacers
display area
crystal display
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CN202110194125.2A
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Chinese (zh)
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CN112904627A (en
Inventor
朱静
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TCL Huaxing Photoelectric Technology Co Ltd
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TCL Huaxing Photoelectric Technology Co Ltd
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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1339Gaskets; Spacers; Sealing of cells
    • G02F1/13392Gaskets; Spacers; Sealing of cells spacers dispersed on the cell substrate, e.g. spherical particles, microfibres
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1339Gaskets; Spacers; Sealing of cells
    • G02F1/13394Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1341Filling or closing of cells

Abstract

The embodiment of the invention provides a liquid crystal display panel, wherein a non-display area is formed between a display area of the liquid crystal display panel and frame glue positioned around the display area, the liquid crystal display panel is formed by a first substrate and a second substrate through frame glue box alignment, and a closed space surrounded by the first substrate, the second substrate and the frame glue is filled with liquid crystal; and a plurality of spacers are arranged at intervals at positions corresponding to the non-display area in the first surface of the first substrate, which is close to the liquid crystal, and/or the second surface of the second substrate, which is close to the liquid crystal. Through the interval arrangement of the plurality of spacer substances in the non-display area between the display area of the liquid crystal display panel and the frame glue, the capillary effect and the outward expansion pressure in the non-display area can be enhanced, so that the diffusion speed of liquid crystal in the non-display area is increased, the occurrence of bubbles is avoided, and the display effect is improved. The embodiment of the invention also provides a manufacturing method of the liquid crystal display panel and a liquid crystal display device with the liquid crystal display panel.

Description

Liquid crystal display panel, manufacturing method thereof and liquid crystal display device
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a liquid crystal display panel, a manufacturing method thereof and a liquid crystal display device.
Background
In the process of manufacturing a liquid crystal display panel, a dropping injection method is generally used to instill liquid crystal in a display area in a frame glue of an array substrate, then vacuum aligning the array substrate and a color film substrate, and curing the frame glue. After the array substrate and the color film substrate are subjected to vacuum box alignment, liquid crystal can be diffused in a closed space surrounded by the array substrate, the color film substrate and the frame glue.
For the narrow-frame liquid crystal display panel, the frame glue is also narrower, and the narrower frame glue can only adopt the design of mixing the conductive gold balls into the colloid material, wherein the conductive gold balls are used for conducting the electrodes on the array substrate and the electrodes on the color film substrate.
Because the height of the conductive gold ball is higher, the capillary effect and the outward expansion pressure of the area near the frame glue are weaker, and therefore, when the liquid crystal is diffused from the display area to the frame glue, the diffusion speed of a non-display area formed between the display area and the frame glue, particularly in a corner area, is slower, and bubbles appear, so that the display image quality is affected.
In order to solve the above problem, the liquid crystal pattern formed by the dropped liquid crystal is usually spread out to shorten the distance between the liquid crystal pattern and the frame glue, but this greatly aggravates the risk of puncturing in the frame glue.
Disclosure of Invention
Therefore, it is necessary to provide a liquid crystal display panel, a manufacturing method thereof and a liquid crystal display device for solving the problem that bubbles appear due to slow liquid crystal diffusion in the conventional dripping injection method of the liquid crystal display panel with ultra-narrow frame, which affects the display image quality.
In a first aspect, an embodiment of the present invention provides a liquid crystal display panel, where a non-display area is formed between a display area of the liquid crystal display panel and a sealant located around the display area, the liquid crystal display panel is formed by a first substrate and a second substrate through the sealant, and a closed space enclosed by the first substrate, the second substrate and the sealant is filled with liquid crystal;
the first substrate is close to the first surface of the liquid crystal and/or the second substrate is close to the second surface of the liquid crystal, and a plurality of spacers are arranged at positions corresponding to the non-display area at intervals.
In some embodiments, a plurality of the spacers are staggered within the non-display area.
In some embodiments, the non-display area includes a corner area and a non-corner area, the density of the spacers within the corner area being greater than the density of the spacers within the non-corner area.
In some embodiments, the cross-sectional shape of different ones of the spacers is the same or different, and the heights of different ones of the spacers are the same or different.
In some embodiments, the cross-sectional shape of the spacer is triangular, quadrilateral, hexagonal, or circular.
In some embodiments, the spacer is fabricated by a halftone mask.
In some embodiments, the first surface and the second surface are coated with an alignment film, and the alignment film is coated by a nozzle coating method.
In some embodiments, a gap is left between the spacer on any one of the first substrate and the second substrate and the other substrate.
In a second aspect, an embodiment of the present invention provides a method for manufacturing a liquid crystal display panel, where the method for manufacturing a liquid crystal display panel includes:
providing a first substrate and a second substrate, wherein a frame glue is coated on the first surface of the first substrate, a non-display area is formed between a display area of the first surface and the frame glue, and a plurality of spacers are arranged at positions corresponding to the non-display area in the non-display area and/or the second surface of the second substrate;
instilling liquid crystal in the display area;
and carrying out box matching on the first substrate and the second substrate, and carrying out curing treatment on the frame glue.
In a third aspect, an embodiment of the present invention provides a liquid crystal display device, where the liquid crystal display device includes the liquid crystal display panel according to the first aspect.
According to the liquid crystal display panel, the manufacturing method thereof and the liquid crystal display device, the plurality of spacers are arranged in the non-display area between the display area of the liquid crystal display panel and the frame glue at intervals, so that capillary effect and outward expansion pressure in the non-display area can be enhanced, the diffusion speed of liquid crystal in the non-display area is increased, air bubbles are avoided, and the display effect is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a liquid crystal display panel according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a distribution of spacers according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a liquid crystal display panel having the spacers shown in FIG. 2 taken along line I-I;
FIG. 4 is a schematic diagram illustrating a distribution of spacers according to another embodiment of the present invention;
FIG. 5 is a cross-sectional view of the LCD panel with the spacers shown in FIG. 4 taken along line II-II;
fig. 6 is a flowchart of a method for manufacturing a liquid crystal display panel according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is a schematic structural diagram of a liquid crystal display panel according to an embodiment of the present invention, as shown in fig. 1, the liquid crystal display panel 1 includes a display area AA, and a non-display area is formed between the display area AA and a sealant 30 located around the display area AA. The liquid crystal display panel 1 is formed by the first substrate and the second substrate through the frame glue 30, and the enclosed space enclosed by the first substrate, the second substrate and the frame glue 30 is filled with liquid crystal. It should be noted that the first substrate and the second substrate are one of the array substrate and the color film substrate and the other one of the array substrate and the color film substrate respectively, for example, the first substrate is the array substrate and the second substrate is the color film substrate, or the first substrate is the color film substrate and the second substrate is the array substrate.
For convenience of description, a surface of the first substrate near the liquid crystal is referred to as a first surface, a surface of the second substrate near the liquid crystal is referred to as a second surface, and a plurality of spacers for accelerating a diffusion speed of the liquid crystal are disposed at intervals at positions corresponding to the non-display regions in the first surface and/or at positions corresponding to the non-display regions in the second surface, for example, a plurality of spacers are disposed at intervals at positions corresponding to the non-display regions in only the first surface, or a plurality of spacers are disposed at intervals at positions corresponding to the non-display regions in only the second surface, or a plurality of spacers (Photo spacers, PS) are disposed at intervals at positions corresponding to the non-display regions in the first surface and at positions corresponding to the non-display regions in the second surface.
It should be noted that, in order to accelerate the diffusion speed of the liquid crystal in the non-display area, other drainage structures, such as a plurality of grooves arranged at intervals, may be further arranged, and the groove body of the groove extends from the side close to the display area AA to the side close to the frame glue 30; for example, a plurality of strip-shaped protrusions are arranged at intervals, and the strip-shaped protrusions extend from one side close to the display area AA to one side close to the frame glue 30.
According to the liquid crystal display panel 1 provided by the embodiment of the invention, the plurality of spacers are arranged in the non-display area between the display area AA of the liquid crystal display panel 1 and the frame glue 30 at intervals, so that the capillary effect and the outward expansion pressure in the non-display area can be enhanced, the diffusion speed of liquid crystal in the non-display area is increased, the occurrence of bubbles is avoided, and the display effect is improved.
For convenience of description, in the subsequent embodiment of the present invention, the first substrate is taken as the array substrate, the second substrate is a color film substrate, and the sealant 30 is only disposed on the first surface of the first substrate for illustration.
In some embodiments, the plurality of spacers are staggered within the non-display area.
For convenience of description, a position of any one of the first surface of the first substrate and the second surface of the second substrate corresponding to the display area AA is also referred to as a display area AA, and a position of any one of the first surface and the second surface corresponding to the non-display area is also referred to as a non-display area.
Taking the example that the spacer is only disposed on the first surface of the first substrate as an example, fig. 2 is a schematic distribution diagram of the spacer provided by the embodiment of the present invention, and as shown in fig. 2, the first surface of the first substrate 10 includes a display area AA and a non-display area formed between the display area AA and the frame glue 30 disposed around the display area AA, where a plurality of spacers 40 in the non-display area are distributed in a staggered manner. At this time, a sectional view of the liquid crystal display panel 1 along the line I-I is shown in fig. 3.
Taking the first surface of the first substrate and the second surface of the second substrate as examples for disposing the spacers 40, fig. 4 is a schematic distribution diagram of the spacers according to another embodiment of the present invention, as shown in part (a) of fig. 4, the first surface of the first substrate 10 includes a display area AA and a non-display area formed between the display area AA and the frame glue 30 around the display area AA, where the spacers 40 in the non-display area are staggered; as shown in part (b) of fig. 4, the second surface of the second substrate 20 also includes a display area AA and a non-display area, and the spacers 40 in the non-display area are staggered. It should be noted that, the spacers 40 on the first surface and the spacers 40 on the second surface are staggered, so as to avoid that the overall height formed by the spacers 40 on the first surface and the spacers 40 on the second surface is higher than the height of the frame glue 30, and thus the first substrate 10 and the second substrate 20 cannot be aligned. At this time, a sectional view of the liquid crystal display panel 1 along II-II is shown in fig. 5.
In some embodiments, the liquid crystal display panel 1 is quadrilateral, so the non-display area formed between the display area AA of the liquid crystal display panel 1 and the sealant 30 can be divided into four corner areas corresponding to four corners of the liquid crystal display panel 1 and four non-corner areas corresponding to four corners of the liquid crystal display panel 1, wherein the four corner areas and the four non-corner areas together form the non-display area.
It should be noted that, since the two right-angle sides of the corner area are both formed by the narrower frame glue 30, the narrower frame glue 30 can only adopt the design of mixing the conductive gold balls into the glue material, and since the height of the conductive gold balls is higher, the capillary effect and the outward diffusion force of the corner area are weaker than those of the non-corner area, so that the diffusion speed of the liquid crystal in the corner area is slower. In this regard, a greater density of spacers 40 is provided in the corner region than in the non-corner region, i.e., the number of spacers 40 in the corner region is greater than the number of spacers 40 in the non-corner region for the same area of the corner region and the non-corner region.
In the liquid crystal display panel 1 provided by the embodiment of the invention, since the density of the spacers 40 in the corner area is greater than that of the spacers 40 in the non-corner area, the diffusion speed of the liquid crystal in the corner area can be increased, the difference between the diffusion speed of the liquid crystal in the corner area and the diffusion speed of the liquid crystal in the non-corner area can be reduced, and the uniformity of the diffusion speed of the liquid crystal in the non-display area formed between the display area AA of the liquid crystal display panel 1 and the frame glue 30 can be improved, so that the quality of the liquid crystal display panel 1 can be improved.
In some embodiments, the cross-sectional shape of different spacers 40 is the same or different, and the heights of different spacers 40 are the same or different.
In some embodiments, the cross-sectional shape of the spacer 40 is triangular, quadrilateral, hexagonal, or circular.
In some embodiments, the spacers 40 are fabricated by a Half Tone Mask (HTM).
The halftone mask plate is adopted, so that the working procedures of two exposure processes can be combined into one exposure process, one exposure process is saved, the generation period is shortened, the production efficiency is improved, and the production cost is reduced.
In some embodiments, the first surface of the first substrate 10 and the second surface of the second substrate 20 are both coated with an alignment film. Typically, the alignment film is coated only within the display area AA in the first surface and within the display area AA in the second surface.
The alignment film is coated by a nozzle coating mode. The alignment film droplets are sprayed on the first surface and the second surface by a nozzle coating method, so that the dropped droplets can naturally spread on the first surface and the second surface. The first substrate 10 is an array substrate, and because the array substrate has many wires and complex topography, the surface (first surface) of the first substrate 10, which is close to the liquid crystal, is rugged, and if a plurality of spacers 40 are disposed in the non-display area of the first surface of the first substrate 10, the spacers 40 can also block the alignment film liquid drops in the process of diffusing the alignment film liquid drops, so as to control the flow velocity of the alignment film liquid drops on the first surface, so that the alignment film liquid drops can diffuse more uniformly on the first surface, and the flatness of the alignment film is improved.
In some embodiments, a gap is left between the spacer 40 on any one of the first substrate 10 and the second substrate 20 and the other substrate.
The embodiment of the invention also provides a method for manufacturing the liquid crystal display panel 1, referring to fig. 6, the method includes:
in step S1, a first substrate 10 and a second substrate 20 are provided, a frame glue 30 is coated on a first surface of the first substrate 10, a non-display area is formed between a display area AA of the first surface and the frame glue 30, and a plurality of spacers 40 are disposed at positions corresponding to the non-display area in the non-display area and/or the second surface of the second substrate 20.
Specifically, the first substrate 10 and the second substrate 20 are one of an array substrate and a color film substrate, and the other one of the array substrate and the color film substrate, for example, the first substrate 10 is an array substrate and the second substrate 20 is a color film substrate, or the first substrate 10 is a color film substrate and the second substrate 20 is an array substrate.
Taking the example that the spacer 40 is only disposed on the first surface of the first substrate 10 as shown in fig. 2, the first surface of the first substrate 10 includes a display area AA and a non-display area formed between the display area AA and the sealant 30 disposed around the display area AA, and the plurality of spacers 40 in the non-display area are staggered. At this time, a sectional view of the liquid crystal display panel 1 along the line I-I is shown in fig. 3.
Taking the first surface of the first substrate 10 and the second surface of the second substrate 20 as an example for illustration, as shown in part (a) of fig. 4, the first surface of the first substrate 10 includes a display area AA and a non-display area formed between the display area AA and the frame glue 30 around the display area AA, where the plurality of spacers 40 in the non-display area are staggered; as shown in part (b) of fig. 4, the second surface of the second substrate 20 also includes a display area AA and a non-display area, and the spacers 40 in the non-display area are staggered.
Step S2, instilling liquid crystal in the display area AA.
Step S3, the first substrate 10 and the second substrate 20 are paired, and the sealant 30 is cured.
Specifically, the structure of the liquid crystal display panel 1 formed by the above steps is shown in fig. 3 (corresponding to the distribution of spacers 40 shown in fig. 2) or fig. 5 (corresponding to the distribution of spacers 40 shown in fig. 4).
According to the manufacturing method of the liquid crystal display panel 1 provided by the embodiment of the invention, the plurality of spacers 40 are arranged at intervals in the non-display area between the display area AA of the liquid crystal display panel 1 and the frame glue 30, so that the capillary effect and the outward expansion pressure in the non-display area can be enhanced, the diffusion speed of liquid crystal in the non-display area is increased, the occurrence of bubbles is avoided, and the display effect is improved.
The embodiment of the invention also provides a liquid crystal display device, which comprises the liquid crystal display panel 1. The structure of the liquid crystal display panel 1 is shown in fig. 1 to 5.
As shown in fig. 1, the liquid crystal display panel 1 includes a display area AA, and a non-display area is formed between the display area AA and the sealant 30 located around the display area AA. The liquid crystal display panel 1 is formed by the first substrate and the second substrate through the frame glue 30, and the enclosed space enclosed by the first substrate, the second substrate and the frame glue 30 is filled with liquid crystal. It should be noted that the first substrate and the second substrate are one of the array substrate and the color film substrate and the other one of the array substrate and the color film substrate respectively, for example, the first substrate is the array substrate and the second substrate is the color film substrate, or the first substrate is the color film substrate and the second substrate is the array substrate.
For convenience of description, a surface of the first substrate near the liquid crystal is referred to as a first surface, a surface of the second substrate near the liquid crystal is referred to as a second surface, and a plurality of spacers for accelerating the diffusion speed of the liquid crystal are disposed at intervals at positions corresponding to the non-display regions in the first surface and/or at positions corresponding to the non-display regions in the second surface, for example, a plurality of spacers are disposed at intervals at positions corresponding to the non-display regions in only the first surface, or a plurality of spacers are disposed at intervals at positions corresponding to the non-display regions in only the second surface, or a plurality of spacers are disposed at intervals at positions corresponding to the non-display regions in the first surface and at positions corresponding to the non-display regions in the second surface.
According to the liquid crystal display device provided by the embodiment of the invention, the plurality of spacers 40 are arranged at intervals in the non-display area between the display area AA of the liquid crystal display panel 1 and the frame glue 30, so that the capillary effect and the outward expansion pressure in the non-display area can be enhanced, the diffusion speed of liquid crystal in the non-display area is increased, the occurrence of bubbles is avoided, and the display effect is improved.
For convenience of description, in the subsequent embodiment of the present invention, the first substrate is taken as the array substrate, the second substrate is a color film substrate, and the sealant 30 is only disposed on the first surface of the first substrate for illustration.
In some embodiments, as shown in FIGS. 2-5, a plurality of spacers 40 are staggered within the non-display area.
In some embodiments, the liquid crystal display panel 1 is quadrilateral, so the non-display area formed between the display area AA of the liquid crystal display panel 1 and the sealant 30 can be divided into four corner areas corresponding to four corners of the liquid crystal display panel 1 and four non-corner areas corresponding to four corners of the liquid crystal display panel 1, wherein the four corner areas and the four non-corner areas together form the non-display area.
It should be noted that, since the two right-angle sides of the corner area are both formed by the narrower frame glue 30, the narrower frame glue 30 can only adopt the design of mixing the conductive gold balls into the glue material, and since the height of the conductive gold balls is higher, the capillary effect and the outward diffusion force of the corner area are weaker than those of the non-corner area, so that the diffusion speed of the liquid crystal in the corner area is slower. In this regard, a greater density of spacers 40 is provided in the corner region than in the non-corner region, i.e., the number of spacers 40 in the corner region is greater than the number of spacers 40 in the non-corner region for the same area of the corner region and the non-corner region.
In the liquid crystal display device provided by the embodiment of the invention, since the density of the spacers 40 in the corner area is greater than that of the spacers 40 in the non-corner area, the diffusion speed of the liquid crystal in the corner area can be increased, the difference between the diffusion speed of the liquid crystal in the corner area and the diffusion speed of the liquid crystal in the non-corner area can be reduced, and the uniformity of the diffusion speed of the liquid crystal in the non-display area formed between the display area AA of the liquid crystal display panel 1 and the frame glue 30 can be improved, so that the quality of the liquid crystal display device can be improved.
In some embodiments, the cross-sectional shape of different spacers 40 is the same or different, and the heights of different spacers 40 are the same or different.
In some embodiments, the cross-sectional shape of the spacer 40 is triangular, quadrilateral, hexagonal, or circular.
In some embodiments, the spacers 40 are fabricated by a Half Tone Mask (HTM).
In some embodiments, the first surface of the first substrate 10 and the second surface of the second substrate 20 are both coated with an alignment film. Typically, the alignment film is coated only within the display area AA in the first surface and within the display area AA in the second surface. Wherein, the alignment film is coated by adopting a nozzle coating mode.
In some embodiments, a gap is left between the spacer 40 on any one of the first substrate 10 and the second substrate 20 and the other substrate.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (8)

1. The liquid crystal display panel is characterized in that a non-display area is formed between a display area of the liquid crystal display panel and frame glue positioned around the display area, the liquid crystal display panel is formed by a first substrate and a second substrate through the frame glue in a box-to-box manner, and a closed space surrounded by the first substrate, the second substrate and the frame glue is filled with liquid crystal;
a plurality of spacers are arranged at intervals at positions corresponding to the non-display area in the first surface of the first substrate, which is close to the liquid crystal, and the second surface of the second substrate, which is close to the liquid crystal;
the spacers on the first surface and the spacers on the second surface are arranged in a staggered manner;
the non-display area comprises a corner area and a non-corner area, a non-corner area is arranged between every two adjacent corner areas, spacers are arranged in the corner area and the non-corner area, and the density of the spacers in the corner area is greater than that of the spacers in the non-corner area.
2. The liquid crystal display panel according to claim 1, wherein the cross-sectional shapes of the spacers are the same or different, and the heights of the spacers are the same or different.
3. The liquid crystal display panel according to claim 2, wherein the spacer has a triangular, quadrangular, hexagonal or circular cross-sectional shape.
4. The liquid crystal display panel of claim 1, wherein the spacers are fabricated by a halftone mask.
5. The liquid crystal display panel according to claim 1, wherein the first surface and the second surface are coated with an alignment film, and the alignment film is coated by a nozzle coating method.
6. The liquid crystal display panel according to claim 1, wherein a gap is left between the spacer on any one of the first substrate and the second substrate and the other substrate.
7. The manufacturing method of the liquid crystal display panel is characterized by comprising the following steps of:
providing a first substrate and a second substrate, wherein a frame glue is coated on the first surface of the first substrate, a non-display area is formed between a display area of the first surface and the frame glue, and a plurality of spacers are arranged at positions corresponding to the non-display area in the non-display area and the second surface of the second substrate; the spacers on the first surface and the spacers on the second surface are arranged in a staggered manner; the non-display area comprises a corner area and a non-corner area, a non-corner area is arranged between every two adjacent corner areas, spacers are arranged in the corner area and the non-corner area, and the density of the spacers in the corner area is greater than that of the spacers in the non-corner area;
instilling liquid crystal in the display area;
and carrying out box matching on the first substrate and the second substrate, and carrying out curing treatment on the frame glue.
8. A liquid crystal display device comprising the liquid crystal display panel according to any one of claims 1 to 6.
CN202110194125.2A 2021-02-20 2021-02-20 Liquid crystal display panel, manufacturing method thereof and liquid crystal display device Active CN112904627B (en)

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