CN209842296U - Retaining wall structure of display panel and display panel - Google Patents
Retaining wall structure of display panel and display panel Download PDFInfo
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- CN209842296U CN209842296U CN201920387613.3U CN201920387613U CN209842296U CN 209842296 U CN209842296 U CN 209842296U CN 201920387613 U CN201920387613 U CN 201920387613U CN 209842296 U CN209842296 U CN 209842296U
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- sand grip
- barricade
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- display panel
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Abstract
The application discloses a retaining wall structure of a display panel and the display panel, which comprise a first retaining wall, a second retaining wall and a third retaining wall, wherein the first retaining wall is close to a display area of the display panel; the second retaining wall is positioned outside the first retaining wall; the third retaining wall is enclosed and surrounds the first retaining wall and the second retaining wall; first barricade, second barricade and third barricade all encircle distribute in display panel's non-display area, and the barricade structure includes a plurality of first openings and a plurality of second openings, and a plurality of first barricade pieces that the interval set up are cut apart into with first barricade to first opening, and a plurality of second barricade pieces that the interval set up are cut apart into with the second barricade to the second opening, and the position of second barricade piece corresponds first opening, and second open-ended position corresponds first barricade piece. And a certain buffer effect is given to the PI (Polyimide) liquid when the PI liquid impacts the retaining walls, the backflow degree of the PI liquid is reduced, part of the PI liquid can pass through the opening between the second retaining walls and flow to the third retaining wall, the PI liquid is prevented from overflowing to the frame glue, and the PI liquid is prevented from flowing back to the display area again.
Description
Technical Field
The application relates to the technical field of display, in particular to a retaining wall structure of a display panel and the display panel.
Background
In a process of manufacturing a TFT (Thin Film Transistor) liquid crystal display panel, an alignment layer is generally formed on a substrate (including an array substrate and a color filter substrate), and an alignment angle is formed on the alignment layer so that liquid crystal molecules are aligned in advance in the direction of the alignment angle. The orientation angle means an angle at which the liquid crystal molecules are tilted along the plane of the substrate. One way to form the orientation angle is to rub the orientation layer with a fleece in a certain direction so that microscopic grooves are formed on the surface of the orientation layer, along which the long axes of the liquid crystal molecules will be aligned. In the display panel, the frame glue coating area of the non-display area is generally provided with a barrier layer, and the edge of the orientation layer is coated by the barrier layer of the frame glue coating area, so that the permeation of moisture from the edge of the orientation layer can be prevented, and the reduction of the alignment capability of the orientation layer due to the permeation of the moisture is avoided.
The reflow phenomenon is generated during the coating process of the orientation layer, which affects the quality of the liquid crystal.
SUMMERY OF THE UTILITY MODEL
The application aims at providing a display panel and a retaining wall structure for reducing PI liquid backflow.
The application discloses a retaining wall structure of a display panel, which comprises a first retaining wall, a second retaining wall and a third retaining wall, wherein the first retaining wall is close to a display area of the display panel; the second retaining wall is positioned outside the first retaining wall; the third retaining wall is enclosed and surrounds the first retaining wall and the second retaining wall; first barricade, second barricade and third barricade all encircle distribute in display panel's non-display area, the barricade structure includes a plurality of first openings and a plurality of second openings, first opening will a plurality of first barricade pieces that the interval set up are cut apart into to first barricade, the second opening will a plurality of first barricade pieces that the interval set up are cut apart into to the second barricade, the position of second barricade piece corresponds first opening, second open-ended position corresponds first barricade piece.
Optionally, one of the first wall blocking block and the second wall blocking block is in a long strip shape, and the other is in a bent shape.
Optionally, the first retaining wall block is in a strip shape and comprises a plurality of first convex strips; the second barricade piece is the shape of buckling, including a plurality of second sand grips and a plurality of third sand grip, the protruding direction perpendicular to display area plane of first sand grip, second sand grip and third sand grip, the direction of arranging of first sand grip is corresponding the display area edge direction, and is a plurality of one discontinuous is arranged to first sand grip first barricade, the second sand grip with the end connection of third sand grip, the second sand grip with the position of third sand grip is corresponding first opening, and is a plurality of the second sand grip with the third sand grip is arranged one discontinuous is the second barricade.
Optionally, first barricade piece is the bending type, including a plurality of second sand grips and a plurality of third sand grip, the second barricade piece is rectangular shape, including a plurality of first sand grips, the protruding direction perpendicular to display area plane of first sand grip, second sand grip and third sand grip, and the direction of arranging of first sand grip is corresponding display area edge direction, the second sand grip with the end connection of third sand grip, it is a plurality of the second sand grip with the third sand grip is arranged into one discontinuous first barricade, and is a plurality of one discontinuous is arranged into to first sand grip the second barricade, the position of first sand grip is corresponding to first opening.
Optionally, an included angle between the second protruding strip and the third protruding strip is greater than 0 and less than 180 °.
Optionally, the first retaining wall block is in a strip shape and comprises a plurality of first convex strips; the second barricade piece is the bending type, including a plurality of second sand grips, third sand grip and fourth sand grip, the protruding direction perpendicular to display area plane of first sand grip, second sand grip, third sand grip and fourth sand grip, the direction of arranging of first sand grip and fourth sand grip is corresponding display area edge direction, and is a plurality of one discontinuous is arranged into to first sand grip first barricade, and is a plurality of one discontinuous is arranged into to second sand grip, third sand grip and fourth sand grip the second barricade of discontinuity, the one end of fourth sand grip with the second sand grip is connected, the other end of fourth sand grip with the third sand grip is connected, the position of fourth sand grip corresponds first opening, the position of second sand grip and third sand grip corresponds first sand grip.
Optionally, the first retaining wall block is bent and includes a second convex strip, a third convex strip and a fourth convex strip; the second barricade piece is rectangular shape, including a plurality of first sand grips, the protruding direction perpendicular to display area plane of first sand grip, second sand grip, third sand grip and fourth sand grip, the direction of arranging of first sand grip and fourth sand grip is corresponding the display area edge direction, and is a plurality of second sand grip, third sand grip and fourth sand grip are arranged into one discontinuous first barricade, the one end of fourth sand grip with the second sand grip is connected, the other end of fourth sand grip with the third sand grip is connected, and is a plurality of one discontinuous is arranged into to first sand grip the second barricade, the position of first sand grip corresponds first opening.
Optionally, the first retaining wall block is in a strip shape and comprises a plurality of first convex strips; the second barricade piece is the shape of buckling, the shape of buckling is the arc, the second barricade piece includes the fifth sand grip, the protruding direction perpendicular to display area plane of first sand grip and fifth sand grip, the direction of arranging of first sand grip is corresponding the display area edge direction, and is a plurality of first sand grip is arranged into one discontinuous first barricade, the fifth sand grip is the arc, outside the opening direction orientation non-display area of fifth sand grip, it is a plurality of the fifth sand grip is arranged into one discontinuous second barricade.
The application also discloses a retaining wall structure of the display panel, which comprises a first retaining wall, a second retaining wall and a third retaining wall, wherein the first retaining wall is close to a display area of the display panel; the second retaining wall is positioned outside the first retaining wall; the third retaining wall is enclosed and surrounds the first retaining wall and the second retaining wall; the first retaining wall, the second retaining wall and the third retaining wall are distributed in a non-display area of the display panel in a surrounding mode, the retaining wall structure comprises a plurality of first openings and a plurality of second openings, the first openings divide the first retaining wall into a plurality of first retaining wall blocks arranged at intervals, the second openings divide the second retaining wall into a plurality of second retaining wall blocks arranged at intervals, the second retaining wall blocks correspond to the first openings in position, and the second openings correspond to the first retaining wall blocks in position; one of the first wall blocking block and the second wall blocking block is in a long strip shape, and the other wall blocking block is in a bent shape; the bending angle of the first retaining wall block or the second retaining wall block in the bent shape is larger than 0 and smaller than 180 degrees.
The application also discloses a display panel, including first base plate, second base plate, frame glue and as above display panel's barricade structure, first base plate with the second base plate sets up to the box, frame glue to be connected first base plate with form a confined space between the second base plate, display panel's barricade structure sets up in the confined space.
For the scheme that only one layer of retaining wall is used, the multilayer retaining wall structure blocks PI liquid backflow and overflow, the opening arranged between the first two layers of retaining walls can provide a certain buffering effect when PI liquid collides with the retaining wall, the degree of PI liquid backflow is reduced, the second retaining wall can block PI liquid when the PI liquid flows through the first retaining wall, part of the PI liquid can pass through the opening between the second retaining wall and flow to the third retaining wall, the third retaining wall is a sealed annular structure, the PI liquid can stop when flowing to the third retaining wall, the PI liquid overflow to the frame glue is prevented, part of the PI liquid can flow back, the PI liquid can be blocked by the second retaining wall and the first retaining wall when flowing back, the PI liquid backflow to the display area is prevented, and the PI liquid backflow phenomenon is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic view of an exemplary retaining wall of a display panel;
FIG. 2 is a schematic diagram of a display panel according to an embodiment of the present application;
fig. 3 is a schematic view of a retaining wall structure of a display panel according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a second rib and third rib configuration according to an embodiment of the present application;
fig. 5 is a schematic view of a retaining wall structure of a display panel according to an embodiment of the present application;
fig. 6 is a schematic view of a retaining wall structure of a display panel according to an embodiment of the present application;
FIG. 7 is a schematic diagram of a second rib, third rib, and fourth rib configuration according to an embodiment of the present application;
fig. 8 is a schematic view of a retaining wall structure of a display panel according to an embodiment of the present application;
fig. 9 is a schematic view of a retaining wall structure of a display panel according to an embodiment of the present application.
100, a display panel; 200. a retaining wall structure of the display panel; 300. frame glue; 400. a display area; 500. a non-display area; 201. a first retaining wall; 202. a second retaining wall; 203. a third retaining wall; 204. a first rib; 205. a second convex strip; 206. a third rib; 207. a fourth rib; 208. a fifth convex strip; 210. a first retaining wall block; 220. and a second retaining wall block.
Detailed Description
It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.
Further, terms of orientation or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are described based on the orientation or relative positional relationship shown in the drawings, are simply for convenience of description of the present application, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
LCD (Liquid Crystal Display) has many advantages such as thin body, power saving, and no radiation, and is widely used. The liquid crystal display device is mostly a backlight type liquid crystal display device, and includes a liquid crystal display panel and a backlight module. Generally, a Liquid Crystal display panel is composed of a CF (Color Film), a TFT (Thin Film Transistor), an LC (Liquid Crystal) between the Color Film and the TFT, and a Seal (Seal); in general, an alignment film is respectively disposed on the thin film transistor substrate and the color filter substrate, and after the alignment film contacts with the LC, the alignment film can make the LC generate a pretilt angle in a certain direction, so as to provide an angle for liquid crystal molecules (the pretilt angle has an important influence on driving voltage, contrast, response time, viewing angle, and the like of the TFT-LCD), and the alignment film is usually formed by applying PI (Polyimide) material onto the substrate.
As shown in fig. 1, the periphery of the display area 400 is sequentially a display area 400 boundary, a PI boundary, and a sealant 300 boundary from inside to outside, and the PI boundary cannot be too close to the display area 400 boundary, so as to prevent the display area 400 from generating unevenness around the display area 400; the PI boundary can not be too close to the boundary of the frame sealant 300, so that the phenomena of poor adhesive force, bubbles and the like of the frame sealant 300 caused by the overlapping of the PI and the frame sealant 300 are prevented; therefore, the PI coating process is faced with the diffusion and backflow phenomena after PI coating, which is a challenge for the frame design (especially for narrow frame design) of the display.
The PI retaining wall is often added to overcome the above defects, and a closed retaining wall is designed, which can effectively prevent PI overflow from overlapping with the frame adhesive 300, but cannot effectively prevent PI backflow or retraction.
The application is further described with reference to the drawings and alternative embodiments.
As shown in fig. 2, an embodiment of the present application discloses a display panel 100, which includes a first substrate, a second substrate, a sealant 300, and a retaining wall structure 200 of the display panel 100, wherein the first substrate and the second substrate are arranged in a box-to-box manner, the sealant 300 is connected between the first substrate and the second substrate to form a sealed space, and the retaining wall structure 200 of the display panel 100 is arranged in the sealed space.
As shown in fig. 3 to fig. 9, the embodiment of the present application discloses a retaining wall structure 200 of a display panel 100, which includes a first retaining wall 201, a second retaining wall 202 and a third retaining wall 203, wherein the first retaining wall 201 is close to a display area 400 of the display panel 100; the second retaining wall 202 is positioned outside the first retaining wall 201; the third retaining wall 203 is enclosed and surrounds the first retaining wall 201 and the second retaining wall 202; the first retaining wall 201, the second retaining wall 202 and the third retaining wall 203 are distributed in the non-display area 500 of the display panel 100 in a surrounding manner, the retaining wall structure 200 includes a plurality of first openings and a plurality of second openings, the first openings divide the first retaining wall 201 into a plurality of first retaining wall blocks 210 arranged at intervals, the second openings divide the second retaining wall 202 into a plurality of second retaining wall blocks 220 arranged at intervals, the positions of the second retaining wall blocks 220 correspond to the first openings, and the positions of the second openings correspond to the first retaining wall blocks 210.
The multilayer retaining wall structure 200 is used for blocking backflow and overflow of PI liquid, an opening arranged between the two retaining walls at the front layer can provide a certain buffering effect when the PI liquid impacts the retaining wall, the degree of backflow of the PI liquid is reduced, when the PI liquid flows through the first retaining wall 201, the second retaining wall 202 can also be used for blocking, part of the PI liquid can pass through the opening between the second retaining walls 202 and flow to the third retaining wall 203, the third retaining wall 203 is a sealed annular structure, the PI liquid can be stopped when flowing to the third retaining wall 203, the PI liquid is prevented from overflowing to the frame glue 300, part of the PI liquid can flow back, the PI liquid can be blocked by the second retaining wall 202 and the first retaining wall 201 while flowing back, the PI liquid is prevented from flowing back to the display area 400, and the PI liquid backflow phenomenon is reduced.
In one embodiment, the first retaining wall 201 is a fence-type retaining wall, and the second retaining wall 202 is a saw-toothed retaining wall. The first retaining wall 201 is used as a retaining wall for blocking PI liquid firstly and plays a role of drainage, more PI liquid can pass through the opening of the fence type retaining wall, the collision force between the PI liquid and the opening of the fence type retaining wall is reduced, the phenomenon that the first retaining wall can generate large backflow is prevented, the second retaining wall 202 is a serrated retaining wall, the PI liquid cannot pass through easily, even if the backflow occurs, the blocking effect of the first retaining wall 201 can be achieved, the backflow is reduced, a small part of the PI liquid can pass through the second retaining wall 202, when the PI liquid collides with the third retaining wall 203 to flow back, the second retaining wall 202 and the third retaining wall 203 can block the PI liquid, and the PI liquid cannot flow back to the display area 400 basically.
As shown in fig. 3, in detail, the first retaining wall block 210 includes a plurality of first ribs 204, the second retaining wall block 220 includes a plurality of second ribs 205 and a plurality of third ribs 206, the protruding direction of the first ribs 204, the protruding direction of the second ribs 205 and the protruding direction of the third ribs 206 are perpendicular to the plane of the display area 400, the arrangement direction of the first ribs 204 corresponds to the edge direction of the display area 400, the plurality of first ribs 204 are arranged into a discontinuous linear annular retaining wall, the end portions of the second ribs 205 and the third ribs 206 are connected, the positions of the second ribs 205 and the third ribs 206 correspond to the first openings, and the plurality of second ribs 205 and the third ribs 206 are arranged into a discontinuous serrated annular retaining wall.
The first retaining wall 201 is a discontinuous linear annular retaining wall formed by arranging a plurality of first convex strips 204, the second retaining wall 202 is a discontinuous serrated annular retaining wall formed by connecting and arranging a plurality of second convex strips 205 and a plurality of third convex strips 206 at a certain angle, the second convex strips 205 and the third convex strips 206 block first openings formed by arranging the first convex strips 204 and leave gaps, when PI liquid overflows, the PI liquid enters the joints of the second convex strips 205 and the third convex strips 206 along the first openings of the first retaining wall 201, if the PI liquid is excessive, the PI liquid flows into second openings along the second convex strips 205 or the third convex strips 206 and is finally blocked by the third retaining wall 203, when the PI liquid flows back, the PI liquid is gathered at the joints of the second openings and the first convex strips 204, and a small part of the PI liquid passes through the second openings, particularly the joints of the second convex strips 205 and the third convex strips 206, and does not flow back into the display area 400, thus, the PI liquid is not overflowed to the sealant 300 and does not flow back to the display area 400.
As shown in fig. 4, the included angle between the second protruding strip 205 and the third protruding strip 206 is greater than 0 and less than 180 °, and if the included angle between the second protruding strip 205 and the third protruding strip 206 is an obtuse angle, the overflow prevention effect is better.
In one embodiment, the first retaining wall 201 is a saw-toothed retaining wall, and the second retaining wall 202 is a fence-type retaining wall. If the PI liquid amount is too large, the risk of overflow and backflow can be caused, the first retaining wall 201 is a serrated retaining wall, the serrated retaining wall has a certain angle, the PI liquid can be buffered, the PI liquid can be gathered at the tip of the serrated retaining wall, and a good backflow preventing effect can be achieved as a first protective measure.
As shown in fig. 5, in detail, the first retaining wall block 210 includes a plurality of second ribs 205 and a plurality of third ribs 206, the second retaining wall block 220 includes a plurality of first ribs 204, the protruding directions of the first ribs 204, the second ribs 205 and the third ribs 206 are perpendicular to the plane of the display area 400, the arrangement direction of the first ribs 204 corresponds to the edge direction of the display area 400, the ends of the second ribs 205 and the third ribs 206 are connected, the plurality of second ribs 205 and the third ribs 206 are arranged to form a discontinuous zigzag annular retaining wall, the plurality of first ribs 204 are arranged to form a discontinuous linear annular retaining wall, and the position of the first ribs 204 corresponds to the first openings.
When the PI is overflowed, the PI is blocked by the second raised line 205 and the third raised line 206 at the tip of the first retaining wall, and part of the PI liquid is gathered at the tip, if the PI liquid is excessive, the PI liquid continues to flow into the first opening along the second raised line 205 or the third raised line 206, and the inflowing PI liquid is blocked by the second retaining wall 202 and the third retaining wall 203, so that the PI liquid is prevented from overflowing to the sealant 300, and at least part of the PI liquid flows back, and the PI liquid is prevented from flowing back to the display area 400 by the first raised line 204, the second raised line 205 and the third raised line 206.
In one embodiment, the first retaining wall 201 is a fence-type retaining wall, and the second retaining wall 202 is a half bracket-shaped retaining wall. The first retaining wall 201 serves as a retaining wall for blocking PI liquid firstly, and plays a role of drainage, the opening of the fence type retaining wall can pass more PI liquid, the collision force between the PI liquid and the opening of the fence type retaining wall is reduced, the phenomenon that the first retaining wall can generate large backflow is prevented, the second retaining wall 202 is a half bracket-shaped retaining wall, the PI liquid cannot pass through easily, the PI liquid is easy to gather in the half bracket retaining wall, the resistance value of the PI liquid flows back, a small part of the PI liquid can pass through the second retaining wall 202, the PI liquid can be blocked by the second retaining wall 202 and the third retaining wall 203 when colliding with the third retaining wall 203 again, and the PI liquid cannot substantially flow back to the display area 400.
As shown in fig. 6, in detail, the first rib 210 includes a plurality of first ribs 204, the second rib 220 includes a plurality of second ribs 205, third ribs 206 and fourth ribs 207, the protruding directions of the first ribs 204, the second ribs 205, the third ribs 206 and the fourth ribs 207 are perpendicular to the plane of the display area 400, the arrangement directions of the first ribs 204 and the fourth ribs 207 correspond to the edge direction of the display area 400, the plurality of first ribs 204 are arranged into a discontinuous linear annular wall, the plurality of second ribs 205, third ribs 206 and fourth ribs 207 are arranged into a discontinuous semi-discontinuous annular bracket wall, one end of the fourth rib 207 is connected with the second rib 205, the other end of the fourth rib 207 is connected with the third rib 206, the position of the fourth rib 207 corresponds to the first opening, and the positions of the second ribs 205 and the third ribs 206 correspond to the first ribs 204.
When the PI liquid overflows, the PI liquid enters the second barrier 202 along the first opening and is blocked by the second protruding strip 205, the third protruding strip 206 and the fourth protruding strip 207, and the half-bracket retaining wall formed by connecting the second protruding strip 205, the third protruding strip 206 and the fourth protruding strip 207 can contain more PI liquid, so that more PI liquid is gathered in the second barrier 202, a small amount of PI liquid may continue to pass through the second opening, but the PI liquid still cannot overflow to the sealant 300 due to the blocking of the third barrier 203, and the display quality of the panel is reduced due to the backflow or overflow of the PI liquid.
As shown in fig. 7, the included angle between the fourth rib 207 and the second and third ribs 205 and 206 is greater than 0 and less than 180 °, and if the included angle between the fourth rib 207 and the second and third ribs 205 and 206 is an obtuse angle, more PI liquid can be collected, so that the overflow prevention effect is good.
In one embodiment, the first retaining wall 201 is a half-bracket retaining wall, the second retaining wall 202 is a fence retaining wall, and the opening direction of the half-bracket retaining wall faces the second retaining wall 202. The first retaining wall 201 serves as a retaining wall for blocking the PI liquid firstly, and plays a role of drainage, the opening of the half bracket-shaped retaining wall faces the second retaining wall 202, so that the impact force between the first retaining wall 201 and the PI liquid can be reduced, the first retaining wall is prevented from generating a large backflow phenomenon, the PI liquid flows back after passing through the first retaining wall 201 and the second retaining wall 202, the PI liquid is gathered in the half bracket of the first retaining wall 201, the PI liquid is gathered, the PI liquid is not easy to flow back, and the PI liquid backflow phenomenon is reduced.
As shown in fig. 8, in detail, the first rib 210 includes a second rib 205, a third rib 206 and a fourth rib 207, the second rib 220 includes a plurality of first ribs 204, the protruding directions of the first rib 204, the second rib 205, the third rib 206 and the fourth rib 207 are perpendicular to the plane of the display area 400, the arrangement direction of the first rib 204 and the fourth rib 207 corresponds to the edge direction of the display area 400, the plurality of second ribs 205, the third rib 206 and the fourth rib 207 are arranged to form a discontinuous half-bracket annular wall, one end of the fourth rib 207 is connected to the second rib 205, the other end of the fourth rib 207 is connected to the third rib 206, the plurality of first ribs 204 are arranged to form a discontinuous linear annular wall, and the position of the first rib 204 corresponds to the first opening.
When the PI liquid overflows, the PI liquid flows into the first opening along the second protrusion 205 and the fourth protrusion 207, when the PI liquid is excessive, the PI liquid flows into the third retaining wall 203 and is blocked and then flows back, when the PI liquid flows back, most of the PI liquid is gathered in the half bracket of the first retaining wall 201, and a few of the PI liquid flows back to the first opening and is blocked by the first protrusion 204, so that the PI liquid cannot flow back to the display area 400.
As shown in fig. 9, the first wall block 210 is in a strip shape and includes a plurality of first protruding strips 204; the second retaining wall block 220 is in a bent shape, the bent shape is an arc shape, the second retaining wall block 220 comprises a fifth convex strip 208, the protruding directions of the first convex strip 204 and the fifth convex strip 208 are perpendicular to the plane of the display area 400, the arrangement direction of the first convex strip 204 corresponds to the edge direction of the display area 400, the plurality of first convex strips 204 are arranged into a discontinuous first retaining wall 201, the fifth convex strip 208 is in an arc shape, the opening direction of the fifth convex strip 208 faces the outside of the non-display area 500, and the plurality of fifth convex strips 208 are arranged into a discontinuous second retaining wall 202. The bending angle of the second retaining wall 202 is an included angle between tangent lines at two end points of the fifth protruding strip 208, the included angle is an acute angle, the radian of the fifth protruding strip 208 is large, and the effect of preventing PI liquid from overflowing is better.
When the PI liquid overflows, the PI liquid flows to the fifth convex strip 208 along the first opening, the radian of the fifth convex strip 208 can play a role in guiding and gathering, if the PI liquid is less, the PI liquid is gathered at the top end of the arc of the fifth convex strip 208, the PI liquid is prevented from overflowing and flowing back, if the PI liquid is more, the PI liquid flows through the first opening along the fifth convex strip 208, and when the PI liquid is blocked by the third retaining wall 203 to flow back, most of the PI liquid is guided to the first retaining wall 201 due to the radian of the second retaining wall 202, so that the PI liquid is prevented from overflowing.
The display panel 100 includes a support spacer, a black matrix, a gate insulating layer, a passivation layer, a data line and a scan line, the support spacer is used to support the first substrate and the second substrate, the black matrix is used to block light, the gate insulating layer is used to isolate the gate of the thin film transistor, the passivation layer is used to protect the thin film transistor, the data line is used to transmit data to the thin film transistor, the scan line is used to turn on the thin film transistor, the first retaining wall 201 and the second retaining wall 202 may be made of metal or nonmetal, the specific nonmetal may be the same as the support spacer, the black matrix, the gate insulating layer or the passivation layer, and the specific metal may be the same as the data line or the scan line.
The technical solution of the present application can be widely applied to various display panels, such as TN (Twisted Nematic) display panel, IPS (In-Plane Switching) display panel, VA (Vertical Alignment) display panel, MVA (Multi-Domain Vertical Alignment) display panel, and of course, other types of display panels, such as OLED (Organic Light-emitting diode) display panel, and the above solution can be applied thereto.
The foregoing is a more detailed description of the present application in connection with specific alternative embodiments, and the present application is not intended to be limited to the specific embodiments shown. For those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.
Claims (10)
1. A retaining wall structure of a display panel, comprising:
the first retaining wall is close to the display area of the display panel;
the second retaining wall is positioned outside the first retaining wall; and
the third retaining wall is enclosed and surrounds the first retaining wall and the second retaining wall;
first barricade, second barricade and third barricade all encircle distribute in display panel's non-display area, the barricade structure includes a plurality of first openings and a plurality of second openings, first opening will a plurality of first barricade pieces that the interval set up are cut apart into to first barricade, the second opening will a plurality of second barricade pieces that the interval set up are cut apart into to the second barricade, the position of second barricade piece corresponds first opening, second open-ended position corresponds first barricade piece.
2. The retaining wall structure of claim 1, wherein one of the first retaining wall block and the second retaining wall block is a strip shape, and the other retaining wall block is a bent shape.
3. The retaining wall structure of claim 2, wherein the first retaining wall block is in a strip shape and comprises a plurality of first protruding strips; the second barricade piece is the shape of buckling, including a plurality of second sand grips and a plurality of third sand grip, the protruding direction perpendicular to display area plane of first sand grip, second sand grip and third sand grip, the direction of arranging of first sand grip is corresponding the display area edge direction, and is a plurality of one discontinuous is arranged to first sand grip first barricade, the second sand grip with the end connection of third sand grip, the second sand grip with the position of third sand grip is corresponding first opening, and is a plurality of the second sand grip with the third sand grip is arranged one discontinuous is the second barricade.
4. The retaining wall structure of claim 2, wherein the first retaining wall block is of a bent shape and comprises a plurality of second protruding strips and a plurality of third protruding strips, the second retaining wall block is of a long strip shape and comprises a plurality of first protruding strips, the protruding directions of the first protruding strips, the second protruding strips and the third protruding strips are perpendicular to the plane of the display area, the arrangement direction of the first protruding strips corresponds to the edge direction of the display area, the end portions of the second protruding strips and the third protruding strips are connected, the plurality of second protruding strips and the third protruding strips are arranged into a discontinuous first retaining wall, the plurality of first protruding strips are arranged into a discontinuous second retaining wall, and the positions of the first protruding strips correspond to the first openings.
5. The retaining wall structure of claim 3 or 4, wherein an angle between the second rib and the third rib is greater than 0 and less than 180 °.
6. The retaining wall structure of claim 2, wherein the first retaining wall block is in a strip shape and comprises a plurality of first protruding strips; the second barricade piece is the bending type, including a plurality of second sand grips, third sand grip and fourth sand grip, the protruding direction perpendicular to display area plane of first sand grip, second sand grip, third sand grip and fourth sand grip, the direction of arranging of first sand grip and fourth sand grip is corresponding display area edge direction, and is a plurality of one discontinuous is arranged into to first sand grip first barricade, and is a plurality of one discontinuous is arranged into to second sand grip, third sand grip and fourth sand grip the second barricade of discontinuity, the one end of fourth sand grip with the second sand grip is connected, the other end of fourth sand grip with the third sand grip is connected, the position of fourth sand grip corresponds first opening, the position of second sand grip and third sand grip corresponds first sand grip.
7. The retaining wall structure of claim 2, wherein the first retaining wall block is of a bent shape and comprises a second rib, a third rib and a fourth rib; the second barricade piece is rectangular shape, including a plurality of first sand grips, the protruding direction perpendicular to display area plane of first sand grip, second sand grip, third sand grip and fourth sand grip, the direction of arranging of first sand grip and fourth sand grip is corresponding the display area edge direction, and is a plurality of second sand grip, third sand grip and fourth sand grip are arranged into one discontinuous first barricade, the one end of fourth sand grip with the second sand grip is connected, the other end of fourth sand grip with the third sand grip is connected, and is a plurality of one discontinuous is arranged into to first sand grip the second barricade, the position of first sand grip corresponds first opening.
8. The retaining wall structure of claim 2, wherein the first retaining wall block is in the shape of a strip and comprises a plurality of first ribs; the second barricade piece is the shape of buckling, the shape of buckling is the arc, the second barricade piece includes the fifth sand grip, the protruding direction perpendicular to display area plane of first sand grip and fifth sand grip, the direction of arranging of first sand grip is corresponding the display area edge direction, and is a plurality of first sand grip is arranged into one discontinuous first barricade, the fifth sand grip is the arc, outside the opening direction orientation non-display area of fifth sand grip, it is a plurality of the fifth sand grip is arranged into one discontinuous second barricade.
9. A retaining wall structure of a display panel, comprising:
the first retaining wall is close to the display area of the display panel;
the second retaining wall is positioned outside the first retaining wall; and
the third retaining wall is enclosed and surrounds the first retaining wall and the second retaining wall;
the first retaining wall, the second retaining wall and the third retaining wall are distributed in a non-display area of the display panel in a surrounding mode, the retaining wall structure comprises a plurality of first openings and a plurality of second openings, the first openings divide the first retaining wall into a plurality of first retaining wall blocks arranged at intervals, the second openings divide the second retaining wall into a plurality of second retaining wall blocks arranged at intervals, the second retaining wall blocks correspond to the first openings in position, and the second openings correspond to the first retaining wall blocks in position; one of the first wall blocking block and the second wall blocking block is in a long strip shape, and the other wall blocking block is in a bent shape; the bending angle of the first retaining wall block or the second retaining wall block in the bent shape is larger than 0 and smaller than 180 degrees.
10. A display panel, comprising a first substrate, a second substrate, a sealant and the retaining wall structure of the display panel according to any one of claims 1 to 9, wherein the first substrate and the second substrate are arranged in a box, the sealant is connected between the first substrate and the second substrate to form a sealed space, and the retaining wall structure of the display panel is arranged in the sealed space.
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| CN201920387613.3U CN209842296U (en) | 2019-03-22 | 2019-03-22 | Retaining wall structure of display panel and display panel |
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| CN201920387613.3U CN209842296U (en) | 2019-03-22 | 2019-03-22 | Retaining wall structure of display panel and display panel |
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| CN111142288A (en) * | 2020-02-25 | 2020-05-12 | Tcl华星光电技术有限公司 | Liquid crystal display device having a plurality of pixel electrodes |
| CN112083607A (en) * | 2020-09-23 | 2020-12-15 | 惠科股份有限公司 | Array substrate, manufacturing method thereof and display device |
| CN112462981A (en) * | 2020-12-17 | 2021-03-09 | 业成科技（成都）有限公司 | Display device and touch display device |
| WO2022222399A1 (en) * | 2021-04-23 | 2022-10-27 | 京东方科技集团股份有限公司 | Display substrate and display apparatus |
| CN113589595A (en) * | 2021-07-23 | 2021-11-02 | 北海惠科光电技术有限公司 | Display panel |
| CN114488625A (en) * | 2022-02-28 | 2022-05-13 | 合肥京东方显示技术有限公司 | Display panel and display device |
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| CN114500705A (en) * | 2022-04-12 | 2022-05-13 | 荣耀终端有限公司 | Frame and electronic equipment |
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