CN107085323B - Display panel, manufacturing method thereof and display device - Google Patents
Display panel, manufacturing method thereof and display device Download PDFInfo
- Publication number
- CN107085323B CN107085323B CN201710386751.5A CN201710386751A CN107085323B CN 107085323 B CN107085323 B CN 107085323B CN 201710386751 A CN201710386751 A CN 201710386751A CN 107085323 B CN107085323 B CN 107085323B
- Authority
- CN
- China
- Prior art keywords
- substrate
- area
- organic film
- film layer
- protruding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
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
-
- 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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- 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)
- Electroluminescent Light Sources (AREA)
Abstract
The invention discloses a display panel, a manufacturing method thereof and a display device, which are used for improving the interface bonding force of a frame area of the display panel. The display panel comprises an array substrate, an opposite substrate and frame glue, wherein the array substrate and the opposite substrate are oppositely arranged, and the frame glue is arranged between the array substrate and the opposite substrate; the orthographic projection area of the frame glue on the array substrate is positioned in the frame area of the array substrate; the array substrate comprises a substrate and an organic film layer positioned on the substrate; wherein: the organic film layer at the position corresponding to the frame glue comprises at least one protruding column and at least one groove.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel, a manufacturing method of the display panel and a display device.
Background
A Liquid Crystal Display (LCD) panel is a commonly used flat panel Display at present, and is widely applied to modern digital information equipment due to its advantages of small size, low power consumption, no radiation, high resolution, and the like.
As shown in fig. 1, the liquid crystal display panel includes an array substrate 11 and a color filter substrate 12 which are oppositely disposed, and a liquid crystal layer (not shown in the figure) located between the array substrate 11 and the color filter substrate 12, where the array substrate 11 and the color filter substrate 12 both include a display area 13 and a non-display area, and the non-display area of the array substrate 11 not only includes a non-display area portion 14 which corresponds to the color filter substrate 12 and has an equal area, but also includes a step area 15 for binding a driving integrated circuit 16.
As shown in fig. 2, a cross-sectional view along the AA1 direction in fig. 1, an array substrate 11 includes a base substrate 110, an organic film layer 111, a passivation layer 112, and a first alignment layer 113 sequentially disposed on the base substrate 110; the color film substrate 12 includes an underlying substrate 110, a black matrix 121, a color-resist planarization layer 122, and a second alignment layer 123, which are sequentially disposed on the underlying substrate 110; in addition, in fig. 1, the sealant 21 and the spacer 22 are further included between the array substrate 11 and the color filter substrate 12 along the AA1 direction.
As shown in fig. 2, in the prior art, a series of alternating cooling and heating processes are required in a process of manufacturing a liquid crystal display panel, which may cause expansion with heat and contraction with cold of different degrees between materials, and due to the difference in characteristics of the materials, micro cracks are formed at edge positions (as shown in the direction of arrows in the figure), which reduces the interface bonding force of the frame region of the liquid crystal display panel, and in fig. 2, failure may occur between each film layer due to the expansion with heat and contraction with cold.
In order to improve the interface bonding force of the frame region of the liquid crystal display panel, the prior art uses a method of improving the bonding force between the sealant 21 and the first alignment layer 113 and the second alignment layer 123, but this method needs to select a sealant material with a higher bonding force, or select a material of the first alignment layer and the second alignment layer with a higher adhesion, so that the material selection cost is higher in the actual production process. In addition, the prior art can also achieve the purpose by adopting a mode of controlling the thermal expansion coefficient of the frame glue 21, but the control of the thermal expansion coefficient of the frame glue is difficult in the actual production process.
In summary, the interface bonding force of the frame region of the liquid crystal display panel in the prior art is poor, and for the liquid crystal display panel with a narrow frame, the area occupied by each film layer at the corresponding position of the frame is smaller, so the contact area between the film layers is smaller, and thus due to the phenomena of thermal expansion and cold contraction, the interface bonding force of the frame region between the film layers is smaller, and the probability of failure between the film layers is larger, so it is very necessary to improve the interface bonding force of the frame region of the liquid crystal display panel.
Disclosure of Invention
In view of this, embodiments of the present invention provide a display panel, a manufacturing method thereof, and a display device, so as to improve an interface bonding force of a frame region of the display panel.
The display panel provided by the embodiment of the invention comprises an array substrate, an opposite substrate and frame glue, wherein the array substrate and the opposite substrate are oppositely arranged, and the frame glue is arranged between the array substrate and the opposite substrate;
the orthographic projection area of the frame glue on the array substrate is positioned in the frame area of the array substrate;
the array substrate comprises a substrate and an organic film layer positioned on the substrate; wherein:
the organic film layer at the position corresponding to the frame glue comprises at least one protruding column and at least one groove.
The embodiment of the invention also provides a display device which comprises the display panel.
The embodiment of the invention also provides a manufacturing method of the display panel, which comprises the following steps:
providing a substrate, and manufacturing an organic film layer on the substrate by adopting a composition process, so that the organic film layer comprises at least one protruding column and at least one groove;
frame glue is manufactured between the substrate which is finished with the steps and the opposite substrate which is manufactured in advance, the positions of the protruding columns and the positions of the grooves correspond to the positions of the frame glue, and the substrate and the opposite substrate are subjected to box matching; wherein: the orthographic projection area of the frame glue on the substrate base plate is located in the frame area of the substrate base plate.
The embodiment of the invention at least has the following beneficial effects:
the display panel provided by the embodiment of the invention comprises an array substrate, an opposite substrate and frame glue, wherein the array substrate and the opposite substrate are oppositely arranged, and the frame glue is arranged between the array substrate and the opposite substrate; the array substrate comprises a substrate and an organic film layer positioned on the substrate; wherein: the organic film layer corresponding to the sealant comprises at least one protruding column and at least one groove. The organic film layer comprises at least one groove, so that the contact area of the frame glue and the array substrate can be increased at the position of the groove, and the interface bonding force of the frame area of the display panel is improved to a certain extent; in addition, the organic film layer further comprises at least one protruding column which can bear the tensile stress borne by a part of the frame glue, so that the function of crack resistance can be achieved, and the interface bonding force of the frame area of the display panel can be improved due to the protruding column; compared with the prior art, the organic film layer provided by the embodiment of the invention has the advantages that the matching arrangement of the protruding columns and the grooves can well improve the interface bonding force of the frame area of the display panel.
Drawings
FIG. 1 is a schematic plan view of a liquid crystal display panel;
FIG. 2 is a schematic cross-sectional view taken along AA1 in FIG. 1;
fig. 3 is a schematic plan view illustrating a display panel according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view taken along the direction BB1 in FIG. 3;
fig. 5 is a schematic plan view of another display panel according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view taken along line CC1 in FIG. 5;
fig. 7 is a schematic cross-sectional structure diagram of a frame position of a display panel according to an embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view illustrating a frame position of a display panel according to another embodiment of the present invention;
fig. 9 is a schematic top view illustrating a frame position of a display panel according to an embodiment of the present invention;
FIG. 10 is a schematic top view illustrating a frame of another display panel according to an embodiment of the present invention;
fig. 11 is a schematic top view illustrating a frame position of a display panel according to another embodiment of the present invention;
FIG. 12 is a schematic top view illustrating a frame of a display panel according to another embodiment of the present invention;
fig. 13 is a flowchart of a method for manufacturing a display panel according to an embodiment of the invention.
Detailed Description
The embodiment of the invention provides a display panel, a manufacturing method thereof and a display device, which are used for improving the interface bonding force of a frame area of the display panel.
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A display panel according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
The thickness of each film layer and the size and shape of the regions in the drawings do not reflect the actual proportion of each film layer, and are only intended to schematically illustrate the present invention.
As shown in fig. 3 and fig. 4, fig. 3 is a schematic plan view of a display panel according to an embodiment of the present invention, and fig. 4 is a schematic cross-sectional view taken along direction BB1 in fig. 3; the embodiment of the present invention provides a display panel, including an array substrate 11 and an opposite substrate 41 which are oppositely disposed, and a sealant 21 disposed between the array substrate 11 and the opposite substrate 41, wherein:
the orthographic projection area of the frame glue 21 on the array substrate 11 is located in the frame area of the array substrate 11, and the non-display area of the array substrate 11 in the embodiment of the invention not only includes a non-display area part which corresponds to the opposite substrate 41 and has the same area, but also includes a step area 15 for binding the driving integrated circuit 16;
the array substrate 11 includes a substrate 110, and an organic film layer on the substrate 110, wherein: the organic film layer at the position corresponding to the sealant 21 includes at least one protruding pillar 42 (only four protruding pillars 42 are shown in fig. 4) and at least one groove 43 (only one groove 43 is shown in fig. 4).
Here, it should be noted that: the organic film layer in the embodiment of the invention has a standard height, and the specific value of the standard height is set according to actual production, such as: the standard height of the organic film layer may be defined as a distance from the bottom of the bump structure to a contact surface of the organic film layer with another film layer therebelow. The raised structures above the standard height in the present embodiment are referred to as protruding pillars 42 and the recessed portions below the standard height are referred to as grooves 43.
In specific implementation, as shown in fig. 3 and 4, the organic film layer at the position corresponding to the sealant 21 in the embodiment of the present invention includes a circle of grooves 43 disposed around the display region 13, and the grooves 43 in the embodiment of the present invention may be recessed portions penetrating through the organic film layer, or may be recessed portions not completely penetrating through the organic film layer. Certainly, in actual design, the organic film layer at the position corresponding to the sealant 21 in the embodiment of the present invention may further include a plurality of grooves 43 disposed around the display region 13, or may also include a plurality of grooves 43 disposed around the display region 13.
In practical design, the organic film layer in the embodiment of the invention may be located in the display area 13 and the non-display area of the array substrate, or may be located only in the non-display area of the array substrate. In specific implementation, the organic film layer located in the display area 13 according to the embodiment of the present invention may be set as an organic film layer with a preset height, for example: the preset height of the organic film layer in the display region 13 may be set as a preset height by taking a distance from a contact surface of the organic film layer with other film layers above to a contact surface of the organic film layer with other film layers below, and a specific value of the preset height is set according to actual production; of course, the organic film layer in the display region 13 may also be provided with grooves below a predetermined height and/or protruding pillars above the predetermined height in a partial region.
Specifically, as shown in fig. 4, the organic film layer in the embodiment of the present invention includes: the protruding columns 42, the grooves 43 and the standard-height organic film layer 44; in the embodiment of the present invention, the material of the protruding pillars 42 is the same as that of the organic film layer 44 with a standard height, and the protruding pillars 42 and the organic film layer 44 with a standard height may be integrally formed or separately formed by a manufacturing process, and the specific forming method will be described in detail in the following manufacturing method.
In specific implementation, in the embodiment of the present invention, the color film layer may be fabricated on the opposite substrate 41, or the color film layer may be fabricated on the array substrate 11, and the specific fabrication method of the color film layer is similar to that in the prior art, and is not described herein again.
Specifically, the array substrate 11 in the embodiment of the present invention further includes film layers such as a thin film transistor, a pixel electrode, a common electrode, a passivation layer, and an alignment layer on the substrate 110, and the structures of the film layers such as the thin film transistor, the pixel electrode, the common electrode, the passivation layer, and the alignment layer in the embodiment of the present invention do not relate to the improvement point of the embodiment of the present invention, so the specific arrangement positions of these film layers are not described in detail here. Fig. 4 in the specific embodiment of the present invention only shows the situation of the organic film layer located on the substrate 110, and in specific implementation, the organic film layer in the specific embodiment of the present invention may be located between the common electrode and the source/drain metal layer of the thin film transistor.
The reason why the interface bonding force of the frame area of the display panel can be improved by the arrangement of the protruding columns in the embodiment of the present invention is briefly described as follows:
fracture mechanics consider that: any material has macroscopic defects (such as gaps, holes, cracks and the like) and structural defects (such as dislocations, grain boundaries, phase boundaries and the like), so that the process of the material which is damaged under the action of external force is the process of rapid propagation and final fracture of material cracks. The fracture of the fiber-reinforced composite material may be caused by plastic deformation, crack growth and bifurcation, interface separation, delamination, or fiber pull-out and stretch-break, which is an energy dissipation process, and the fibers are reinforced in the composite material by the spacer blocking material.
From the above fracture mechanics point of view, the protruding pillars 42 mainly also perform the crack-blocking function in the sealant 21, and enhance the interface effect between the sealant 21 and the array substrate 11. The sealant 21 is actually an aggregate assembly formed by bonding the sealant and the additive together, and a large friction angle is formed by the protruding columns 42 and the additive, and the sticking effect of the protruding columns 42 and the sealant can transfer the tensile stress borne by the sealant 21 to the protruding columns 42 to bear a part of the tensile stress, that is, the protruding columns 42 can effectively release the stress of cracks, so as to strengthen the bonding force between the sealant and the array substrate.
Because the organic film layer in the embodiment of the invention comprises at least one groove, the contact area between the frame glue and the array substrate can be increased at the position of the groove, and the interface bonding force of the frame area of the display panel is improved to a certain extent; in addition, because the organic film layer in the embodiment of the invention further comprises at least one protruding column, according to the fracture mechanics viewpoint, the protruding column can bear the tensile stress borne by a part of the frame glue, so that the function of crack resistance can be achieved, and the interface bonding force of the frame area of the display panel can be improved due to the arrangement of the protruding column; compared with the prior art, the specific embodiment of the invention can not only improve the interface bonding force of the frame region of the display panel through the groove included by the organic film layer, but also improve the interface bonding force of the frame region of the display panel through the protruding column included by the organic film layer.
Further, in order to better improve the interface bonding force in the frame area of the display panel, in the embodiment of the present invention, a spacer 51 is disposed on the opposite substrate 41 at a position corresponding to the at least one groove 43, as shown in fig. 5 and 6, fig. 5 is a schematic plan view of another display panel provided in the embodiment of the present invention, and fig. 6 is a schematic cross-sectional view along the direction CC1 in fig. 5; in the embodiment of the present invention, the orthographic projection of the spacer 51 on the array substrate 11 is located in the groove 43, and from the viewpoint of fracture mechanics, the spacer 51 in the embodiment of the present invention can also bear the tensile stress borne by a part of the sealant 21, so that the function of crack resistance can be achieved.
In specific implementation, as shown in fig. 7, fig. 7 is a schematic cross-sectional structure diagram of a frame position of a display panel according to an embodiment of the present invention, where the opposite substrate 41 according to an embodiment of the present invention includes a substrate 110, a black matrix 413 disposed on the substrate 110, a red filter layer 411, and a blue filter layer 412, and the spacer 51 according to an embodiment of the present invention may be directly disposed on the substrate 110 of the opposite substrate 41, may also be disposed on the black matrix 413, and may also be disposed on the blue filter layer 412, and of course, when actually designing, the spacer 51 may also be disposed on the red filter layer 411, and may also be disposed on a green filter layer (not shown in the figure), so that the disposing manner of the spacer 51 is more flexible and changeable; the substrate 110 in the embodiment of the present invention may be a glass substrate, a quartz substrate, or a substrate made of a material such as a ceramic substrate. The color resistors are arranged in the non-display area, and the height difference between the display area and the non-display area of the array substrate can be reduced due to the fact that the color resistors for filtering are arranged in the display area, and the color resistors are not required to be arranged in the non-display area, so that the height difference exists between the display area and the non-display area, and the flatness is low. In the embodiment of the present invention, if there is a step difference between the display area and the non-display area, the ratio of the height of the spacer 51 to the thickness of the sealant is small, and the effect of preventing cracks is poor. Therefore, in this embodiment, the spacer 51 is disposed on the color resistor to further enhance the crack-resistant function, so as to further improve the interface bonding force of the frame region of the display panel.
The specific location of the spacer is described below.
In a specific embodiment, as shown in fig. 8, fig. 8 is a schematic cross-sectional structure diagram of a frame position of another display panel provided by an embodiment of the present invention, where the organic film layer in the specific embodiment of the present invention includes three grooves 43 and five protruding columns 42, where the three grooves 43 shown in fig. 8 may be grooves 43 formed after three circles of grooves are dug on the organic film layer disposed around the display area of the array substrate, of course, when actually designed, the plurality of grooves formed in the specific embodiment of the present invention may also be grooves formed after only one circle of grooves are dug into a plurality of sections of organic film layer disposed around the display area of the array substrate, the specific embodiment of the present invention provides spacers 51 on the opposite substrate 41 at a position corresponding to the groove 43 at the leftmost position in fig. 8, provides spacers 51 on the opposite substrate 41 at a position corresponding to the groove 43 at the middle position in fig. 8, no spacer is provided on the counter substrate 41 at a position corresponding to the groove 43 at the rightmost position in fig. 8.
Of course, in another embodiment, the spacer 51 may be provided only on the opposing substrate 41 at the position corresponding to the groove 43 at the leftmost position in fig. 8, and the spacers may not be provided on the opposing substrate 41 at the position corresponding to the groove 43 at the middle position in fig. 8, and on the opposing substrate 41 at the position corresponding to the groove 43 at the rightmost position in fig. 8.
In order to further improve the interface bonding force of the frame region of the display panel, preferably, one groove 43 corresponds to a plurality of spacers 51 in the embodiment of the present invention, as shown in fig. 9 and 10, fig. 9 is a schematic top view structure diagram of the frame position of the display panel provided in the embodiment of the present invention, and fig. 10 is a schematic top view structure diagram of the frame position of another display panel provided in the embodiment of the present invention, from the viewpoint of fracture mechanics, the arrangement of the plurality of spacers 51 in the embodiment of the present invention can bear the tensile stress borne by the sealant 21 to a greater extent, and can perform a crack blocking function to a greater extent, so as to further improve the interface bonding force of the frame region of the display panel; fig. 9 is a top view corresponding to fig. 6, and fig. 10 is a top view corresponding to fig. 8.
In specific implementation, as shown in fig. 9 and 10, the position of one groove 43 in the embodiment of the present invention may correspond to one row of spacers 51, or may correspond to two rows of spacers 51, and of course, may also correspond to only one spacer 51, or may not correspond to the spacer 51.
Preferably, in the embodiment of the present invention, the distance between two adjacent spacers 51 is greater than or equal to 2.5 micrometers (μm), and the sealant 21 contains a plurality of additives with a particle size of 2 μm to 2.5 μm, so that the uniform distribution of the additives in the sealant 21 can be ensured when the distance between the spacers 51 is greater than or equal to 2.5 μm.
Specifically, the protruding columns 42 in the embodiment of the present invention are arranged in a staggered manner, as shown in fig. 9 and 10, the protruding columns 42 arranged in a staggered manner can ensure that the function of crack resistance can be performed at multiple positions, so that the interface bonding force of the frame region of the display panel can be further improved. Preferably, in the embodiment of the present invention, the distance between two adjacent protruding pillars 42 is greater than or equal to 2.5 μm, so that the additive can be well uniformly distributed in the sealant 21.
In particular implementation, as shown in fig. 6, the height of the protruding column 42 in the embodiment of the present invention satisfies the formula: h is2/3<h1<h2(ii) a Wherein: h is1Indicates the height, h, of the projecting post 422Denotes the height of the organic film layer, i.e. h2Indicating the sum of the height of the protruding pillars 42 and the height of the standard-height organic film layer 44. In the embodiment of the present invention, if the height of the protruding columns 42 is too low, the function of crack resistance is not very good, and when the height of the protruding columns 42 in the embodiment of the present invention satisfies h2/3<h1<h2The protruding post 42 provides the best crack arrest.
Specifically, the cross-sectional shape of the protruding pillars 42 in the embodiment of the present invention is a square, a strip, a circle or an ellipse, where the cross-sectional shape refers to a shape of a vertical projection of the upper bottom surface or the lower bottom surface of the protruding pillars 42 facing the array substrate. Of course, in actual production, the cross-sectional shape of the protruding column 42 in the embodiment of the present invention may also be other shapes, such as: the shape of the arc may be circular, and the cross-sectional shape of the protruding column 42 is not limited in the embodiments of the present invention.
Specifically, the cross-sectional shape of the groove in the embodiments of the present invention is a square, a long strip, a circle, an ellipse, or a polygonal line, where the cross-sectional shape refers to a shape of a vertical projection of the bottom surface of the groove to the array substrate. Of course, in practical production, the cross-sectional shape of the groove in the embodiment of the present invention may also be other shapes, such as: the shape of the cross section of the groove may be circular arc, and the specific embodiment of the present invention does not limit the cross section of the groove. In specific implementation, the cross-sectional shape of the groove is a polygonal line as shown in fig. 11, fig. 11 is a schematic top view structure diagram of a frame position of another display panel according to an embodiment of the present invention, the cross-sectional shape of the groove is a square as shown in fig. 12, and fig. 12 is a schematic top view structure diagram of a frame position of another display panel according to an embodiment of the present invention.
As shown in fig. 9, 10, 11, and 12, in the embodiment of the present invention, the arrangement modes of the protruding pillars, the grooves, and the spacers are more flexible and changeable, and the different arrangement modes of the protruding pillars, the grooves, and the spacers are used in a matching manner, so that the tensile stress borne by the sealant can be buffered, and thus the crack resistance function can be better achieved, and the interface bonding force of the frame region of the display panel can be further improved.
It should be noted that in fig. 9, 10, 11 and 12, the sealant on the organic film 44 has been omitted to clearly show the groove position of the organic film 44, and only the sealant in the groove of the organic film is shown. The positions of the sealant in the practical embodiment can refer to fig. 3 to 6.
Based on the same inventive concept, an embodiment of the present invention further provides a display device, where the display device includes the display panel provided by the embodiment of the present invention, and the display device may be: any product or component with a display function, such as a mobile phone, a tablet personal computer, a liquid crystal television, an OLED television, a notebook computer, a digital photo frame, a navigator and the like. Other essential components of the display device are understood by those skilled in the art and are not described herein.
Based on the same inventive concept, as shown in fig. 13, fig. 13 is a flowchart of a manufacturing method of a display panel according to an embodiment of the present invention, and the manufacturing method of the display panel according to the embodiment of the present invention includes:
s1301, providing a substrate, and manufacturing an organic film layer on the substrate by adopting a composition process, so that the organic film layer comprises at least one protruding column and at least one groove;
s1302, frame glue is manufactured between the substrate which is subjected to the steps and a pre-manufactured opposite substrate, the positions of the protruding columns and the positions of the grooves correspond to the positions of the frame glue, and the substrate and the opposite substrate are subjected to box matching; wherein: the orthographic projection area of the frame glue on the substrate base plate is located in the frame area of the substrate base plate.
In specific implementation, the specific manufacturing method of the opposite substrate, the specific manufacturing method of the sealant, and the specific method for aligning the substrate and the opposite substrate are similar to those of the prior art, and are not described herein again.
The following describes a specific method for fabricating an organic film in an embodiment of the present invention.
In one embodiment thereof:
in the embodiment of the invention, the organic film layer is manufactured on the substrate by adopting the composition process, which comprises the following steps:
coating a positive photoresist layer on a substrate;
exposing the positive photoresist layer by using a gray scale or half-order mask plate, wherein a complete light-transmitting area of the gray scale or half-order mask plate corresponds to an area needing to form a groove, a complete light-tight area corresponds to an area needing to form a protruding column, and a partial light-transmitting area corresponds to other areas needing to form an organic film layer on the substrate;
and developing the positive photoresist layer after the steps are completed to form an organic film layer.
In specific implementation, the specific embodiment of the invention can adopt a spin coating mode to coat a positive photoresist layer on the substrate; then, a gray-scale or half-scale mask is used to expose the positive photoresist layer, wherein the gray-scale or half-scale mask includes a completely transparent region, a completely opaque region and a partially transparent region (for example, the light transmittance is 20% to 50%).
And developing the exposed positive photoresist layer, completely removing the organic film layer at the position corresponding to the completely light-transmitting area, forming a groove penetrating through the organic film layer at the position corresponding to the completely light-transmitting area, completely retaining the organic film layer at the position corresponding to the completely light-proof area, forming a protruding column at the position corresponding to the completely light-proof area, partially removing the organic film layer at the position corresponding to the partial light-transmitting area, and forming the organic film layer with the standard height at the position corresponding to the partial light-transmitting area.
Of course, in the actual production process, the embodiment of the present invention may also use a spin coating method to coat a negative photoresist layer on the substrate, and the method for forming the organic film layer is similar to the method for forming the organic film layer by using a positive photoresist layer, except that the gray scale or half-level mask plate has a completely transparent region corresponding to the region where the protruding pillars need to be formed, a completely opaque region corresponding to the region where the grooves need to be formed, and a partially transparent region corresponding to the other regions on the substrate where the organic film layer needs to be formed. However, in the actual production process, the positive photoresist layer has more stable performance than the negative photoresist layer, and the embodiment of the present invention preferably uses the positive photoresist layer to form the organic film.
In another embodiment:
in the embodiment of the invention, the organic film layer is manufactured on the substrate by adopting the composition process, which comprises the following steps:
coating a positive photoresist layer on a substrate;
exposing the positive photoresist layer by using a mask plate, wherein the mask plate comprises a first light transmission area, a second light transmission area and a third light transmission area, the transmittance of the first light transmission area is greater than that of the second light transmission area, the transmittance of the second light transmission area is greater than that of the third light transmission area, the first light transmission area corresponds to an area needing to be provided with a groove, the third light transmission area corresponds to an area needing to be provided with a protruding column, and the second light transmission area corresponds to other areas needing to be provided with an organic film layer on the substrate;
and developing the positive photoresist layer after the steps are completed to form an organic film layer.
In specific implementation, a positive photoresist layer may be coated on the substrate by spin coating, and when the positive photoresist layer is exposed by using a mask, the transmittance of the first light-transmitting region may be 80%, the transmittance of the second light-transmitting region may be 50%, and the transmittance of the third light-transmitting region may be 10%. Further, the third light-transmitting region may be a completely opaque region in the above-described embodiment, i.e., the transmittance is 0%.
When the exposed positive photoresist layer is developed, the removed thickness value of the organic film layer at the position corresponding to the first light-transmitting area is the largest, but the organic film layer is not completely removed, so that a groove is formed at the position corresponding to the first light-transmitting area, and the formed groove does not penetrate through the organic film layer; the removed thickness value of the organic film at the position corresponding to the third light-transmitting region is the minimum, so that a protruding column is formed at the position corresponding to the third light-transmitting region, and the removed thickness value of the organic film at the position corresponding to the second light-transmitting region is between the removed thickness value of the organic film at the position corresponding to the first light-transmitting region and the removed thickness value of the organic film at the position corresponding to the third light-transmitting region, so that the organic film with the standard height is formed at the position corresponding to the second light-transmitting region.
Of course, in the actual production process, the embodiment of the present invention may also apply a negative photoresist layer on the substrate by spin coating, and the method for forming the organic film is similar to the method for forming the organic film by using the positive photoresist layer, except that the first light-transmitting region corresponds to the region where the protruding pillars need to be formed, the third light-transmitting region corresponds to the region where the grooves need to be formed, and the second light-transmitting region corresponds to the other regions where the organic film needs to be formed on the substrate.
Specifically, the method for manufacturing a display panel according to the embodiment of the present invention further includes: the method comprises the following steps of manufacturing at least one spacer on an opposite substrate by adopting a composition process, wherein the spacer corresponds to the position of at least one groove.
In specific implementation, the specific embodiment of the invention may adopt a spin coating manner to coat a positive photoresist layer on the opposite substrate, and use a mask plate to expose the positive photoresist layer, wherein the completely transparent region of the mask plate corresponds to the region where no spacer needs to be formed, and the completely opaque region of the mask plate corresponds to the region where the spacer needs to be formed, and then develop the exposed positive photoresist layer to form the spacer.
Of course, in the actual production process, the specific embodiment of the present invention may also use a negative photoresist layer to form the spacer, and the method of forming the spacer using the negative photoresist layer is similar to the method of forming the spacer using the positive photoresist layer, except that the completely transparent region of the mask plate corresponds to the region where the spacer needs to be formed, and the completely opaque region of the mask plate corresponds to the region where the spacer does not need to be formed.
In summary, embodiments of the present invention provide a display panel, which includes an array substrate and an opposite substrate disposed opposite to each other, and a sealant disposed between the array substrate and the opposite substrate; the orthographic projection area of the frame glue on the array substrate is positioned in the frame area of the array substrate; the array substrate comprises a substrate and an organic film layer positioned on the substrate; wherein: the organic film layer corresponding to the sealant comprises at least one protruding column and at least one groove. Because the organic film layer in the embodiment of the invention comprises at least one groove, the contact area between the frame glue and the array substrate can be increased at the position of the groove, and the interface bonding force of the frame area of the display panel is improved to a certain extent; in addition, because the organic film layer in the embodiment of the invention further comprises at least one protruding column, and the protruding column can bear the tensile stress borne by a part of the frame glue, the function of crack resistance can be achieved, and the interface bonding force of the frame area of the display panel can be improved due to the arrangement of the protruding column; compared with the prior art, the organic film layer provided by the embodiment of the invention has the advantages that the matching arrangement of the protruding columns and the grooves can well improve the interface bonding force of the frame area of the display panel.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (11)
1. A display panel is characterized by comprising an array substrate, an opposite substrate and frame glue, wherein the array substrate and the opposite substrate are arranged oppositely;
the orthographic projection area of the frame glue on the array substrate is positioned in the frame area of the array substrate;
the array substrate comprises a substrate and an organic film layer positioned on the substrate; wherein:
the organic film layer at the position corresponding to the frame glue comprises a plurality of protruding columns and at least one groove;
the distance between two adjacent protruding columns is greater than or equal to 2.5 micrometers;
the height of the protruding column satisfies the formula: h is2/3<h1<h2(ii) a Wherein: h is1Denotes the height of the protruding column, h2Represents the height of the organic film layer; the distance between the bottom end of the protruding column and the surface of the organic film layer, which is far away from the protruding column, is a standard height, the protruding structure higher than the standard height is the protruding column, and the height of the organic film layer is the sum of the standard height and the height of the protruding column;
the array substrate further comprises a display area, the frame area surrounds the display area, the groove is arranged around the display area, and the protruding columns are located on one side, close to the display area, of the groove and on one side, far away from the display area, of the groove;
and arranging a spacer on the opposite substrate at the position corresponding to at least one groove.
2. The display panel according to claim 1, wherein one of the grooves corresponds to a plurality of the spacers.
3. The display panel according to claim 2, wherein a distance between two adjacent spacers is greater than or equal to 2.5 μm.
4. The display panel of claim 1, wherein the protruding columns are arranged in a staggered manner.
5. The display panel according to claim 1, wherein the cross-sectional shape of the protruding pillars is square, elongated, circular, or elliptical.
6. The display panel according to claim 1, wherein the cross-sectional shape of the groove is a square, a long strip, a circle, an oval or a fold line.
7. A display device characterized by comprising the display panel according to any one of claims 1 to 6.
8. A method of manufacturing a display panel according to any one of claims 1 to 6, the method comprising:
providing a substrate, and manufacturing an organic film layer on the substrate by adopting a composition process, so that the organic film layer comprises a plurality of protruding columns and at least one groove;
frame glue is manufactured between the substrate which is finished with the steps and the opposite substrate which is manufactured in advance, the positions of the protruding columns and the positions of the grooves correspond to the positions of the frame glue, and the substrate and the opposite substrate are subjected to box matching; wherein: the orthographic projection area of the frame glue on the substrate base plate is positioned in the frame area of the substrate base plate; the distance between two adjacent protruding columns is greater than or equal to 2.5 micrometers; the height of the protruding column satisfies the formula: h is2/3<h1<h2(ii) a Wherein: h is1Denotes the height of the protruding column, h2Represents the height of the organic film layer; the distance between the bottom end of the protruding column and the surface of the organic film layer, which is far away from the protruding column, is a standard height, the protruding structure higher than the standard height is the protruding column, and the height of the organic film layer is the sum of the standard height and the height of the protruding column; the array substrate further comprises a display area, the frame area surrounds the display area, the groove is arranged around the display area, and the protruding columns are located on one side, close to the display area, of the groove and on one side, far away from the display area, of the groove; and arranging a spacer on the opposite substrate at the position corresponding to at least one groove.
9. The method of claim 8, further comprising forming at least one spacer on the opposite substrate by a patterning process, wherein the spacer corresponds to at least one of the grooves.
10. The method according to claim 8, wherein the step of forming an organic film on the substrate by a patterning process comprises:
coating a positive photoresist layer on the substrate base plate;
exposing the positive photoresist layer by using a gray scale or half-order mask plate, wherein a complete light-transmitting area of the gray scale or half-order mask plate corresponds to an area needing to form a groove, a complete light-tight area corresponds to an area needing to form a protruding column, and a part of light-transmitting area corresponds to other areas needing to form an organic film layer on the substrate;
and developing the positive photoresist layer after the steps are completed to form the organic film layer.
11. The method according to claim 8, wherein the step of forming an organic film on the substrate by a patterning process comprises:
coating a positive photoresist layer on the substrate base plate;
exposing the positive photoresist layer by adopting a mask plate, wherein the mask plate comprises a first light transmission area, a second light transmission area and a third light transmission area, the transmittance of the first light transmission area is greater than that of the second light transmission area, the transmittance of the second light transmission area is greater than that of the third light transmission area, the first light transmission area corresponds to an area needing to be provided with a groove, the third light transmission area corresponds to an area needing to be provided with a protruding column, and the second light transmission area corresponds to other areas needing to be provided with an organic film layer on the substrate;
and developing the positive photoresist layer after the steps are completed to form the organic film layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710386751.5A CN107085323B (en) | 2017-05-26 | 2017-05-26 | Display panel, manufacturing method thereof and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710386751.5A CN107085323B (en) | 2017-05-26 | 2017-05-26 | Display panel, manufacturing method thereof and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107085323A CN107085323A (en) | 2017-08-22 |
| CN107085323B true CN107085323B (en) | 2020-05-26 |
Family
ID=59607797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710386751.5A Active CN107085323B (en) | 2017-05-26 | 2017-05-26 | Display panel, manufacturing method thereof and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107085323B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107919366B (en) * | 2017-11-30 | 2020-03-13 | 武汉天马微电子有限公司 | Display panel and display device |
| CN108535925B (en) * | 2018-03-20 | 2021-04-02 | 厦门天马微电子有限公司 | Display panels and display devices |
| CN109449290B (en) * | 2018-09-29 | 2023-05-19 | 广州国显科技有限公司 | Flexible substrate and manufacturing method thereof, array substrate, display panel and display device |
| CN109239985B (en) * | 2018-10-26 | 2021-09-03 | 京东方科技集团股份有限公司 | Liquid crystal display panel, preparation method thereof and display substrate |
| CN109633989A (en) * | 2018-11-29 | 2019-04-16 | 武汉华星光电技术有限公司 | Display panel |
| CN113383439A (en) * | 2019-07-11 | 2021-09-10 | 深圳市柔宇科技股份有限公司 | OLED display panel and display device |
| CN110892544A (en) * | 2019-10-16 | 2020-03-17 | 京东方科技集团股份有限公司 | Method for packaging display substrate and opposite substrate, packaged display panel, display device and opposite substrate |
| CN111308816A (en) * | 2020-02-28 | 2020-06-19 | 重庆京东方光电科技有限公司 | Organic film, array substrate, display panel and display device |
| CN115133272A (en) * | 2021-03-24 | 2022-09-30 | 群创光电股份有限公司 | Adjusting device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04106525A (en) * | 1990-08-27 | 1992-04-08 | Ricoh Co Ltd | Liquid crystal display element |
| KR20000045984A (en) * | 1998-12-31 | 2000-07-25 | 윤종용 | Liquid crystal display panel |
| JP2004302481A (en) * | 2004-06-01 | 2004-10-28 | Semiconductor Energy Lab Co Ltd | Method for manufacturing liquid crystal display device |
| CN202693959U (en) * | 2012-07-20 | 2013-01-23 | 京东方科技集团股份有限公司 | Liquid crystal display panel and liquid crystal display device |
| CN105116635A (en) * | 2015-10-14 | 2015-12-02 | 京东方科技集团股份有限公司 | Display panel and manufacturing method thereof as well as display device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100464200C (en) * | 2006-08-03 | 2009-02-25 | 中华映管股份有限公司 | color filter substrate, liquid crystal display panel and manufacturing method thereof |
| TW200823573A (en) * | 2006-11-17 | 2008-06-01 | Au Optronics Corp | Liquid crystal display panel and manufacture method thereof |
| CN101191958A (en) * | 2006-11-17 | 2008-06-04 | 群康科技(深圳)有限公司 | LCD display panel and device |
| CN201222150Y (en) * | 2008-06-26 | 2009-04-15 | 上海广电光电子有限公司 | Liquid crystal display panel |
| CN101726913A (en) * | 2008-10-14 | 2010-06-09 | 华映视讯（吴江）有限公司 | Liquid crystal display panel |
| CN102662276A (en) * | 2012-05-17 | 2012-09-12 | 深圳市华星光电技术有限公司 | Liquid crystal display panel |
| KR101984269B1 (en) * | 2013-04-29 | 2019-05-30 | 엘지디스플레이 주식회사 | Liquid crystal display device and manufacturing method thereof |
| CN103941460A (en) * | 2013-07-29 | 2014-07-23 | 武汉天马微电子有限公司 | Color filter substrate, manufacturing method and liquid crystal display panel |
| CN105278171A (en) * | 2014-07-09 | 2016-01-27 | 群创光电股份有限公司 | Display panel |
| CN104133327B (en) * | 2014-08-21 | 2017-05-31 | 深圳市华星光电技术有限公司 | Liquid crystal display panel |
-
2017
- 2017-05-26 CN CN201710386751.5A patent/CN107085323B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04106525A (en) * | 1990-08-27 | 1992-04-08 | Ricoh Co Ltd | Liquid crystal display element |
| KR20000045984A (en) * | 1998-12-31 | 2000-07-25 | 윤종용 | Liquid crystal display panel |
| JP2004302481A (en) * | 2004-06-01 | 2004-10-28 | Semiconductor Energy Lab Co Ltd | Method for manufacturing liquid crystal display device |
| CN202693959U (en) * | 2012-07-20 | 2013-01-23 | 京东方科技集团股份有限公司 | Liquid crystal display panel and liquid crystal display device |
| CN105116635A (en) * | 2015-10-14 | 2015-12-02 | 京东方科技集团股份有限公司 | Display panel and manufacturing method thereof as well as display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107085323A (en) | 2017-08-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107085323B (en) | Display panel, manufacturing method thereof and display device | |
| CN104600079B (en) | A kind of liquid crystal display device, thin-film transistor array base-plate and preparation method thereof | |
| WO2017008369A1 (en) | Coa-type liquid crystal display panel and manufacturing method thereof | |
| US9632349B2 (en) | Liquid crystal display panel structure and manufacture method thereof | |
| CN102955296A (en) | Display apparatus and method for manufacturing the same | |
| WO2016061850A1 (en) | Manufacturing method for curved liquid crystal panel | |
| CN108535909A (en) | The production method and BPS type array substrates of BPS type array substrates | |
| JP2002202512A (en) | Liquid crystal display device and method of manufacturing for the same | |
| TW200823573A (en) | Liquid crystal display panel and manufacture method thereof | |
| TWI390286B (en) | Flexible liquid crystal dislay panel and method for manufacturing the same | |
| CN107290894B (en) | COA type liquid crystal display panel and manufacturing method thereof | |
| CN104932152A (en) | Liquid crystal display panel and manufacturing method thereof | |
| US8089603B2 (en) | Fabrication method of liquid crystal display panel | |
| CN111427198A (en) | Display substrate, preparation method thereof and display device | |
| CN107870490B (en) | display device | |
| WO2018209796A1 (en) | Liquid crystal display panel, manufacturing method therefor and curved display device | |
| WO2019153910A1 (en) | Color film substrate and manufacturing method therefor, and display panel and display device | |
| WO2013183216A1 (en) | Display panel and method for manufacturing same | |
| TW594163B (en) | Structure of light-shielding frame for liquid crystal display and manufacturing method thereof | |
| JP2008176131A (en) | Liquid crystal display device and manufacturing method thereof | |
| CN101329481A (en) | Liquid crystal display panel and manufacturing method thereof | |
| WO2017215395A1 (en) | Display panel, display apparatus, display panel manufacturing method, and display apparatus manufacturing method | |
| CN101363991A (en) | Color filter substrate, manufacturing method thereof and liquid crystal display panel | |
| CN100412657C (en) | Liquid crystal display panel and method for manufacturing color filter substrate | |
| WO2015010387A1 (en) | Substrate and manufacturing method therefor, and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |