CN114545689B - Liquid crystal display panel, preparation method thereof and display device - Google Patents
Liquid crystal display panel, preparation method thereof and display device Download PDFInfo
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- CN114545689B CN114545689B CN202011307885.1A CN202011307885A CN114545689B CN 114545689 B CN114545689 B CN 114545689B CN 202011307885 A CN202011307885 A CN 202011307885A CN 114545689 B CN114545689 B CN 114545689B
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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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
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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
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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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
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- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The application discloses a liquid crystal display panel, a preparation method thereof and a display device, which are used for increasing the binding area of side binding. The embodiment of the application provides a liquid crystal display panel, which comprises: an array substrate and an opposite substrate, and a frame sealing adhesive for sealing the array substrate and the opposite substrate; the orthographic projection of the array substrate is overlapped with the orthographic projection of the opposite substrate; the frame sealing glue surrounds the display area of the liquid crystal display panel; at the frame sealing glue side that deviates from the display area, array substrate includes: a plurality of binding electrodes; the binding electrode includes: a lead electrode extending from the display area to an edge of the array substrate, and a contact electrode located above the lead electrode and electrically connected to the lead electrode; the protective layer is provided with a first via hole which penetrates through the thickness of the protective layer and exposes the lead electrode, and the contact electrode is electrically connected with the lead electrode through the first via hole; the liquid crystal display panel further includes: and a separation column positioned between any two adjacent binding electrodes.
Description
Technical Field
The application relates to the technical field of display, in particular to a liquid crystal display panel, a preparation method thereof and a display device.
Background
In the conventional liquid crystal display product design, one side of the array substrate generally exceeds the edge of the opposite substrate to form a binding pad area, and is subsequently connected with a peripheral circuit by adopting a COG or COF mode. However, the existence of the step edge is unfavorable for realizing the narrow frame of the product. In the current narrow-frame product design, one implementation mode is to arrange the array substrate and the opposite substrate in a trimming mode, and bind the edges of the array substrate beyond the edges of the array substrate through the metal wiring side edges, so that the narrow-frame product is realized. However, in the side binding product, the height of the side metal wiring is smaller, the binding area is smaller, the impedance is inversely proportional to the area, the contact impedance is larger, abnormal binding and abnormal contact resistance can be caused due to process fluctuation and the like, and poor dark hatching is easy to occur in some heavy-duty pictures.
Disclosure of Invention
The embodiment of the application provides a liquid crystal display panel, a preparation method thereof and a display device, which are used for increasing the binding area of side binding.
The embodiment of the application provides a liquid crystal display panel, which comprises: the array substrate and the opposite substrate are oppositely arranged, and the frame sealing glue seals the array substrate and the opposite substrate; the orthographic projection of the array substrate is overlapped with the orthographic projection of the opposite substrate; the frame sealing glue surrounds a display area of the liquid crystal display panel;
and one side of the frame sealing glue, which is away from the display area, the array substrate comprises: a plurality of binding electrodes;
the binding electrode includes: a lead electrode extending from the display area to an edge of the array substrate, and a contact electrode located above the lead electrode and electrically connected to the lead electrode; the lead electrode and the contact electrode comprise a protective layer therebetween, the protective layer is provided with a first via hole penetrating through the thickness of the protective layer and exposing the lead electrode, and the contact electrode is electrically connected with the lead electrode through the first via hole;
the liquid crystal display panel further includes: and a separation column positioned between any two adjacent binding electrodes.
In some embodiments, the isolation column is connected with the frame sealing glue, and the isolation column extends from the frame sealing glue to the edge of the liquid crystal display panel.
In some embodiments, the isolation column includes a first isolation column located at a side of the array substrate close to the opposite substrate, and a second isolation column located at a side of the opposite substrate close to the array substrate and connected to the first isolation column.
In some embodiments, the surface of the second isolation column near one side of the array substrate is provided with a groove;
in the first direction, the width of the groove is larger than the width of the surface of the first isolation column, which is close to one side of the opposite substrate; the first direction is parallel to the plane of the array substrate and perpendicular to the extending direction of the lead electrode;
the first isolation column is connected with the second isolation column in the groove.
In some embodiments, the width of the first spacer column is less than the width of the second spacer column in the first direction.
In some embodiments, in the display area, the liquid crystal display panel further includes a spacer disposed on a side of the opposite substrate, which is close to the array substrate, and the second sub-spacers are disposed on the same layer as the spacer.
In some embodiments, the protective layer comprises: an organic protective layer over the lead electrode, and an inorganic protective layer over the organic protective layer.
The embodiment of the application provides a preparation method of a liquid crystal display panel, which comprises the following steps:
manufacturing an array substrate, comprising: forming a lead electrode, a protective layer and a contact electrode on a first substrate, wherein the protective layer is provided with a first via hole penetrating through the thickness of the protective layer and exposing the lead electrode, and the contact electrode is electrically connected with the lead electrode through the first via hole to form a binding electrode; the lead electrode extends from the display area of the liquid crystal display panel to the edge of the array substrate;
manufacturing a facing substrate;
forming frame sealing glue and isolation columns between the array substrate and the opposite substrate, and aligning the array substrate and the opposite substrate; the frame sealing glue surrounds the display area of the liquid crystal display panel, and the isolation column is positioned between any two adjacent binding electrodes at one side of the frame sealing glue, which is away from the display area.
In some embodiments, forming a spacer column between the array substrate and the opposite substrate specifically includes:
forming a pattern of first isolation columns located between the binding electrodes on the array substrate;
and forming a pattern of second isolation columns corresponding to the first isolation columns on the opposite substrate by adopting a half-tone mask process.
The display device provided by the embodiment of the application comprises the liquid crystal display panel, the conductive part and the driving chip;
the conductive part is in contact with the binding electrode of the liquid crystal display panel in the area between the edge of the liquid crystal display panel and the isolation column;
the driving chip is electrically connected with the binding electrode through the conductive part.
According to the liquid crystal display panel, the preparation method thereof and the display device provided by the embodiment of the application, the isolation column for connecting the array substrate and the color film substrate is arranged on one side of the frame sealing glue, which is away from the display area, and the frame sealing glue and the isolation column divide the area between the array substrate and the opposite substrate into a plurality of binding spaces. And the isolation column is positioned between the binding electrodes, the lead electrodes are led out through the contact electrodes, and each lead electrode and the contact electrode electrically connected with the lead electrode are positioned in a region corresponding to one binding space. In this way, in the process of conducting silver paste side coating on the liquid crystal display panel, the conducting silver paste not only can be in contact with the lead electrode on the side surface of the liquid crystal display panel, but also can fill the binding space to be in contact with the contact electrode, so that the contact area between the conducting part formed by the conducting silver paste and the binding electrode can be increased through the electric connection between the contact electrode and the lead electrode, the binding area is increased, and the defect of dark shadow lines caused by the larger contact resistance is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and 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 application;
fig. 2 is a schematic structural diagram of another lcd panel according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of another lcd panel according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of another lcd panel according to an embodiment of the present application;
fig. 5 is a schematic diagram of a method for manufacturing a liquid crystal display panel according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a display device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present application. It will be apparent that the described embodiments are some, but not all, embodiments of the application. And embodiments of the application and features of the embodiments may be combined with each other without conflict. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present application fall within the protection scope of the present application.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
It should be noted that the dimensions and shapes of the figures in the drawings do not reflect true proportions, and are intended to illustrate the present application only. And the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.
The embodiment of the application provides a liquid crystal display panel, as shown in fig. 1 to 3, which comprises: an array substrate 1 and an opposite substrate 2 which are oppositely arranged, and a frame sealing adhesive 5 for sealing the array substrate 1 and the opposite substrate 2; the orthographic projection of the array substrate 1 coincides with the orthographic projection of the opposite substrate 2; the frame sealing glue 5 surrounds the display area 3 of the liquid crystal display panel;
at a side of the frame sealing glue 5 facing away from the display area 3, the array substrate 1 includes: a plurality of binding electrodes 18;
the bonding electrode 18 includes: a lead electrode 8 extending from the display area 3 to an edge of the array substrate 1, and a contact electrode 11 located above the lead electrode 8 and electrically connected to the lead electrode 8; a protective layer 9 is arranged between the lead electrode 8 and the contact electrode 11, the protective layer 9 is provided with a first via hole 10 penetrating through the thickness of the protective layer and exposing the lead electrode 8, and the contact electrode 11 is electrically connected with the lead electrode 8 through the first via hole 10;
the liquid crystal display panel further includes: a spacer column 6 located between any adjacent two of the binding electrodes 18.
In the liquid crystal display panel provided by the embodiment of the application, the isolation column for connecting the array substrate and the color film substrate is arranged on one side of the frame sealing glue, which is away from the display area, and the frame sealing glue and the isolation column divide the area between the array substrate and the opposite substrate into a plurality of binding spaces. And the isolation column is positioned between the binding electrodes, the lead electrodes are led out through the contact electrodes, and each lead electrode and the contact electrode electrically connected with the lead electrode are positioned in a region corresponding to one binding space. In this way, in the process of conducting silver paste side coating on the liquid crystal display panel, the conducting silver paste not only can be in contact with the lead electrode on the side surface of the liquid crystal display panel, but also can fill the binding space to be in contact with the contact electrode, so that the contact area between the conducting part formed by the conducting silver paste and the binding electrode can be increased through the electric connection between the contact electrode and the lead electrode, the binding area is increased, and the defect of dark shadow lines caused by the larger contact resistance is avoided.
Note that fig. 1 only shows the orthographic projection of the frame sealing glue 5 and the isolation column 6 on the array substrate 1. Fig. 2 is a sectional view taken along AA 'in fig. 1, and fig. 3 is a sectional view taken along BB' in fig. 1.
In practice, as shown in fig. 1, a plurality of spacer columns 6 are parallel to one another. The plurality of binding electrodes are also parallel to each other. The isolation posts and the lead electrodes are arranged along a first direction X and extend along a second direction Y.
In some embodiments, as shown in fig. 2 and 3, the array substrate 1 further includes: a first substrate base plate 7, and an insulating layer 12 between the first substrate base plate 7 and the lead electrode 8.
In some embodiments, as shown in fig. 1, the isolation posts 6 are connected with the frame sealing glue 5, and the isolation posts 6 extend from the frame sealing glue 5 to the edge of the liquid crystal display panel.
Therefore, the frame sealing glue and the isolation column divide the area between the array substrate and the opposite substrate into a plurality of binding spaces which are not connected with each other, and the conductive silver paste is prevented from being poured into other binding spaces in the side binding process.
In some embodiments, as shown in fig. 2, the isolation column 6 includes a first isolation column 13 located at a side of the array substrate 1 near the opposite substrate 2, and a second isolation column 14 located at a side of the opposite substrate 2 near the array substrate 1 and connected to the first isolation column 13.
In some embodiments, as shown in fig. 1, the shape of the orthographic projection of the isolation column 6 on the array substrate 1 is a bar, that is, the shape of the orthographic projection of the first isolation column and the second isolation column on the array substrate is a bar.
In some embodiments, as shown in fig. 2, the surface of the second isolation pillar 14 near the side of the array substrate 1 has a groove;
in the first direction X, the width of the groove is larger than the width of the surface of the first spacer 13 on the side close to the counter substrate 2; wherein the first direction X is parallel to the plane of the array substrate 1 and perpendicular to the extending direction of the lead electrode 8;
the first isolation column 13 is connected with the second isolation column 14 in the groove.
According to the liquid crystal display panel provided by the embodiment of the application, the second isolation column is provided with the groove on the surface close to one side of the array substrate, and the width of the groove is larger than that of the first sub isolation column on the surface close to one side of the opposite substrate, so that the first sub isolation column can be connected with the second sub isolation column in the groove, the connection effect between the first sub isolation column and the second sub isolation column can be increased, and the sealing effect of the independent binding space is increased.
In some embodiments, as shown in fig. 2, the width of the first isolation column 13 is smaller than the width of the second isolation column 14 in the first direction X.
In some embodiments, in the display area, the liquid crystal display panel further includes a spacer disposed on a side of the opposite substrate, which is close to the array substrate, and the second isolation column and the spacer are disposed on the same layer.
In some embodiments, the distance from the side of the first isolation column facing away from the display area to the edge of the liquid crystal display panel is 0.1 mm to 0.4 mm.
In some embodiments, the thickness of the first spacer is less than or equal to 2 microns.
In practical implementation, the total thickness of the liquid crystal display panel is generally 2 micrometers to 5 micrometers, and the thickness of the first isolation column and the thickness of the second isolation column can be set according to actual needs.
That is, the length of the second isolation column is 0.1 mm to 0.4 mm in the extending direction of the lead electrode.
In some embodiments, as shown in fig. 2, the protective layer 9 includes: an inorganic protective layer located over the lead electrode 8.
Alternatively, in some embodiments, as shown in fig. 4, the protective layer 9 includes: an organic protective layer 19 on the lead electrode 8, and an inorganic protective layer 20 on the organic protective layer 19.
According to the liquid crystal display panel provided by the embodiment of the application, the organic protective layer is arranged on the lead electrode, so that the lead electrode can be protected and the generation of lead electrode scraps is prevented.
In some embodiments, the contact electrodes are in one-to-one correspondence with the lead electrodes.
In some embodiments, as shown in fig. 2 and 4, the protective layer 9 has a plurality of first vias 10 in the area between two adjacent isolation pillars 6.
According to the liquid crystal display panel provided by the embodiment of the application, the area protection layer between two adjacent isolation columns is provided with the first through holes, so that each contact electrode is contacted with the lead electrode through the first through holes, and the contact area between the contact electrode and the lead electrode is increased.
In specific implementation, the material of the lead electrode may include a stack of molybdenum (Mo)/aluminum (Al)/Mo, or copper (Cu), and the thickness of the lead electrode may be 150 angstroms, 3000 angstroms, or 800 angstroms, for example. The material of the inorganic protective layer may include, for example, silicon nitride (SIN X ) The thickness of the inorganic protective layer may be 4000 to 6000 angstroms, for example. The material of the contact electrode may include, for example, indium Tin Oxide (ITO).
In some embodiments, in the display area, the array substrate further includes: a gate electrode, a gate insulating layer, an active layer, a source/drain electrode, a pixel electrode, and a common electrode disposed over the first substrate. The lead electrode is arranged on the same layer as the source and drain electrodes, and the contact electrode is arranged on the same layer as the pixel electrode or the common electrode. The insulating layer in the figure includes a gate insulating layer. The opposite substrate includes: color resistance and black matrix, the color resistance is located in the opening area of the black matrix.
The embodiment of the application provides a preparation method of a liquid crystal display panel, as shown in fig. 5, comprising the following steps:
s101, manufacturing an array substrate, which comprises the following steps: forming a lead electrode, a protective layer and a contact electrode on a first substrate, wherein the protective layer is provided with a first via hole penetrating through the thickness of the protective layer and exposing the lead electrode, and the contact electrode is electrically connected with the lead electrode through the first via hole to form a binding electrode; the lead electrode extends from the display area of the liquid crystal display panel to the edge of the array substrate;
s102, manufacturing a counter substrate;
s103, forming frame sealing glue and isolation columns between the array substrate and the opposite substrate, and aligning the array substrate and the opposite substrate; the frame sealing glue surrounds the display area of the liquid crystal display panel, and the isolation column is positioned between any two adjacent binding electrodes at one side of the frame sealing glue, which is away from the display area.
According to the preparation method of the liquid crystal display panel, the isolation column connected with the array substrate and the color film substrate is formed on one side, away from the display area, of the frame sealing glue, and the frame sealing glue and the isolation column divide the area between the array substrate and the opposite substrate into a plurality of binding spaces. And the isolation column is positioned between the binding electrodes, and when the array substrate is manufactured, lead electrodes in the binding electrodes are led out through the contact electrodes, and each lead electrode and the contact electrode electrically connected with the lead electrode are positioned in a region corresponding to one binding space. In this way, in the process of conducting silver paste side coating on the liquid crystal display panel, the conducting silver paste not only can be in contact with the lead electrode on the side surface of the liquid crystal display panel, but also can fill the binding space to be in contact with the contact electrode, so that the contact area between the conducting part formed by the conducting silver paste and the binding electrode can be increased through the electric connection between the contact electrode and the lead electrode, the binding area is increased, and the defect of dark shadow lines caused by the larger contact resistance is avoided.
Forming isolation columns between the array substrate and the opposite substrate, specifically comprising:
forming a pattern of first isolation columns located between the binding electrodes on the array substrate;
and forming a pattern of second isolation columns corresponding to the first isolation columns on the opposite substrate by adopting a half-tone mask process.
As shown in fig. 6, a display device provided by an embodiment of the present application includes a liquid crystal display panel provided by an embodiment of the present application, a conductive portion 16, and a driving chip;
the conductive part 16 is in contact with the binding electrode 18 of the liquid crystal display panel at the edge of the liquid crystal display panel and the area between the isolation columns;
the driving chip is electrically connected to the bonding electrode 18 through the conductive part 16.
The display device provided by the embodiment of the application comprises the liquid crystal display panel provided by the embodiment of the application, so that the conductive part can be contacted with the lead electrode at the side surface of the liquid crystal display panel, the area between the isolation columns can be filled to be contacted with the contact electrode, the contact area between the conductive part and the binding electrode can be increased, the binding area is increased, and the defect of dark shadow lines caused by overlarge contact resistance is avoided.
In a specific implementation, the side binding process may, for example, apply conductive silver paste to a side surface of the liquid crystal display panel and pour the conductive silver paste into binding spaces formed by the isolation columns, the frame sealing glue, the array substrate and the opposite substrate, so as to form conductive parts contacting with the lead electrodes and the contact electrodes. In particular, as shown in fig. 2, the conductive silver paste coated area is area 15. The conductive parts formed by the conductive silver paste correspond to the lead electrodes one by one, and the conductive parts corresponding to different binding spaces are disconnected with each other.
The display device provided by the embodiment of the application comprises the following components: any product or component with display function such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like. Other essential components of the display device will be understood by those skilled in the art, and are not described herein in detail, nor should they be considered as limiting the application. The implementation of the display device can be referred to the embodiments of the liquid crystal display panel, and the repetition is not repeated.
In summary, in the liquid crystal display panel, the manufacturing method thereof and the display device provided by the embodiments of the application, the isolation column for connecting the array substrate and the color film substrate is disposed on the side of the frame sealing glue facing away from the display area, and the frame sealing glue and the isolation column divide the area between the array substrate and the opposite substrate into a plurality of binding spaces. And the isolation column is positioned between the binding electrodes, the lead electrodes are led out through the contact electrodes, and each lead electrode and the contact electrode electrically connected with the lead electrode are positioned in a region corresponding to one binding space. In this way, in the process of conducting silver paste side coating on the liquid crystal display panel, the conducting silver paste not only can be in contact with the lead electrode on the side surface of the liquid crystal display panel, but also can fill the binding space to be in contact with the contact electrode, so that the contact area between the conducting part formed by the conducting silver paste and the binding electrode can be increased through the electric connection between the contact electrode and the lead electrode, the binding area is increased, and the defect of dark shadow lines caused by the larger contact resistance is avoided.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (8)
1. A liquid crystal display panel, the liquid crystal display panel comprising: the array substrate and the opposite substrate are oppositely arranged, and the frame sealing glue seals the array substrate and the opposite substrate; the orthographic projection of the array substrate is overlapped with the orthographic projection of the opposite substrate; the frame sealing glue surrounds a display area of the liquid crystal display panel;
and one side of the frame sealing glue, which is away from the display area, the array substrate comprises: a plurality of binding electrodes;
the binding electrode includes: a lead electrode extending from the display area to an edge of the array substrate, and a contact electrode located above the lead electrode and electrically connected to the lead electrode; the lead electrode and the contact electrode comprise a protective layer therebetween, the protective layer is provided with a first via hole penetrating through the thickness of the protective layer and exposing the lead electrode, and the contact electrode is electrically connected with the lead electrode through the first via hole;
the liquid crystal display panel further includes: a separation column positioned between any two adjacent binding electrodes;
the isolation column comprises a first isolation column positioned at one side of the array substrate close to the opposite substrate and a second isolation column positioned at one side of the opposite substrate close to the array substrate and connected with the first isolation column;
the surface of the second isolation column, which is close to one side of the array substrate, is provided with a groove;
in the first direction, the width of the groove is larger than the width of the surface of the first isolation column, which is close to one side of the opposite substrate; the first direction is parallel to the plane of the array substrate and perpendicular to the extending direction of the lead electrode;
the first isolation column is connected with the second isolation column in the groove.
2. The liquid crystal display panel of claim 1, wherein the spacer is connected to the frame sealant and the spacer extends from the frame sealant to an edge of the liquid crystal display panel.
3. The liquid crystal display panel of claim 1, wherein a width of the first spacer is smaller than a width of the second spacer in the first direction.
4. The liquid crystal display panel according to claim 1, further comprising a spacer on a side of the opposite substrate close to the array substrate in the display area, wherein the second spacer is disposed on the same layer as the spacer.
5. The liquid crystal display panel according to claim 1, wherein the protective layer comprises: an organic protective layer over the lead electrode, and an inorganic protective layer over the organic protective layer.
6. A method for manufacturing a liquid crystal display panel, the method comprising:
manufacturing an array substrate, comprising: forming a lead electrode, a protective layer and a contact electrode on a first substrate, wherein the protective layer is provided with a first via hole penetrating through the thickness of the protective layer and exposing the lead electrode, and the contact electrode is electrically connected with the lead electrode through the first via hole to form a binding electrode; the lead electrode extends from the display area of the liquid crystal display panel to the edge of the array substrate;
manufacturing a facing substrate;
forming frame sealing glue and isolation columns between the array substrate and the opposite substrate, and aligning the array substrate and the opposite substrate; the frame sealing glue surrounds a display area of the liquid crystal display panel, and the isolation column is positioned between any two adjacent binding electrodes at one side of the frame sealing glue away from the display area;
the isolation column comprises a first isolation column positioned at one side of the array substrate close to the opposite substrate and a second isolation column positioned at one side of the opposite substrate close to the array substrate and connected with the first isolation column; the surface of the second isolation column, which is close to one side of the array substrate, is provided with a groove; in the first direction, the width of the groove is larger than the width of the surface of the first isolation column, which is close to one side of the opposite substrate; the first direction is parallel to the plane of the array substrate and perpendicular to the extending direction of the lead electrode; the first isolation column is connected with the second isolation column in the groove.
7. The method of claim 6, wherein forming spacer posts between the array substrate and the counter substrate, in particular, comprises:
forming a pattern of first isolation columns located between the binding electrodes on the array substrate;
and forming a pattern of second isolation columns corresponding to the first isolation columns on the opposite substrate by adopting a half-tone mask process.
8. A display device comprising the liquid crystal display panel according to any one of claims 1 to 5, a conductive portion, and a driving chip;
the conductive part is in contact with the binding electrode of the liquid crystal display panel in the area between the edge of the liquid crystal display panel and the isolation column;
the driving chip is electrically connected with the binding electrode through the conductive part.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110109300A (en) * | 2019-04-23 | 2019-08-09 | 深圳市华星光电半导体显示技术有限公司 | A kind of production method of display panel and display panel |
| CN110416248A (en) * | 2019-08-06 | 2019-11-05 | 京东方科技集团股份有限公司 | A kind of display base plate and preparation method thereof, display device |
| CN110828480A (en) * | 2019-11-13 | 2020-02-21 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
| CN110827667A (en) * | 2019-10-30 | 2020-02-21 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
| CN110837194A (en) * | 2019-10-30 | 2020-02-25 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display device and spliced screen |
| CN110928061A (en) * | 2019-11-29 | 2020-03-27 | 武汉华星光电技术有限公司 | Display panel and display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140063744A1 (en) * | 2012-09-05 | 2014-03-06 | Texas Instruments Incorporated | Vertically Stacked Power FETS and Synchronous Buck Converter Having Low On-Resistance |
-
2020
- 2020-11-20 CN CN202011307885.1A patent/CN114545689B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110109300A (en) * | 2019-04-23 | 2019-08-09 | 深圳市华星光电半导体显示技术有限公司 | A kind of production method of display panel and display panel |
| CN110416248A (en) * | 2019-08-06 | 2019-11-05 | 京东方科技集团股份有限公司 | A kind of display base plate and preparation method thereof, display device |
| CN110827667A (en) * | 2019-10-30 | 2020-02-21 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
| CN110837194A (en) * | 2019-10-30 | 2020-02-25 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display device and spliced screen |
| CN110828480A (en) * | 2019-11-13 | 2020-02-21 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
| CN110928061A (en) * | 2019-11-29 | 2020-03-27 | 武汉华星光电技术有限公司 | Display panel and display device |
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