CN110782800A - Display panel and display device - Google Patents
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- CN110782800A CN110782800A CN201911150390.XA CN201911150390A CN110782800A CN 110782800 A CN110782800 A CN 110782800A CN 201911150390 A CN201911150390 A CN 201911150390A CN 110782800 A CN110782800 A CN 110782800A
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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Abstract
The application discloses display panel and display device, display panel includes: a first substrate; a second substrate disposed opposite to the first substrate; the limiting structure is positioned at least one edge position between the first substrate and the second substrate, and comprises a first limiting part and a second limiting part which are arranged at intervals, and the first limiting part, the second limiting part, the first substrate and the second substrate which are positioned between the first limiting part and the second limiting part are jointly surrounded to form an accommodating space; at least one channel is arranged on the inner wall of the first limiting part and/or the second limiting part in the accommodating space; and the packaging adhesive is filled in the accommodating space and extends into at least part of the channel. Through the mode, the position that this application can control the encapsulation and glue and improve the drawing force between encapsulation and the limit structure.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
At present, Frit glass powder packaging glue is widely used in a display panel packaging process, and the drawing force and the stability between the Frit glass powder packaging glue and a substrate are important indexes for reflecting the reliability of a display panel product.
In order to meet the full-screen requirement of a user, the frame of the display panel is narrower and narrower, and the narrowing of the frame provides a great challenge to the position control of the Frit glass sealing glue and the reliability of the display panel.
Disclosure of Invention
The technical problem that this application mainly solved provides a display panel and display device, can control the position of encapsulation glue and improve the drawing force between encapsulation glue and the limit structure.
In order to solve the technical problem, the application adopts a technical scheme that: provided is a display panel including: the display device comprises a display area and a non-display area arranged around the display area; a first substrate; a second substrate disposed opposite to the first substrate; the limiting structure is positioned at least one edge position between the first substrate and the second substrate, wherein the edge position is positioned in the non-display area, the limiting structure comprises a first limiting piece and a second limiting piece which are arranged at intervals, and the first limiting piece, the second limiting piece, the first substrate and the second substrate which are positioned between the first limiting piece and the second limiting piece are jointly surrounded to form an accommodating space; at least one channel is arranged on the inner wall of the first limiting part and/or the second limiting part in the accommodating space; and the packaging adhesive is filled in the accommodating space and extends into at least part of the channel.
The extending directions of the channels on the same limiting piece are not completely the same. The design mode can make the packaging glue extending into the channel root in the corresponding limiting part like a root system, thereby increasing the drawing resistance of the packaging glue.
The first limiting part and the second limiting part are located on the inner wall of the accommodating space and are provided with at least one channel, and the channel arranged on the first limiting part and the channel arranged on the second limiting part are symmetrical to each other. This symmetrical design mode can make the left and right sides atress of the encapsulation that is located the accommodation space when drawing comparatively even, reduces one of them side encapsulation and glues because the inhomogeneous cracked probability that leads to of atress.
Wherein the plurality of channels provided on the inner wall of the first retaining member communicate with each other to form a labyrinth groove, and/or the plurality of channels provided on the inner wall of the second retaining member communicate with each other to form a labyrinth groove. The design mode of the labyrinth groove can enable the drawing force between the packaging adhesive and the first limiting piece to be larger.
Wherein the display panel further comprises: and the ventilation channel is positioned in the limiting structure, is communicated with at least part of the channels in the limiting structure where the ventilation channel is positioned, and at least one end of the ventilation channel is communicated to the outer side of the limiting structure where the ventilation channel is positioned. When the packaging adhesive is formed by Frit glass powder through melting and solidification processes, the arrangement mode of the ventilation channel can discharge air generated in a channel when the packaging adhesive is solidified, so that the probability of air holes generated in the packaging adhesive is reduced, and the probability of cracks generated when the packaging adhesive is pulled is further reduced.
Wherein the channel comprises a bottom wall far away from the accommodating space, and the ventilation channel is communicated with the bottom wall of the channel. The design mode is more favorable for the air in the channel to be discharged by the ventilation channel, so that the formed packaging adhesive is more uniform.
The first limiting part and/or the second limiting part are/is arranged in direct contact with the first substrate and the second substrate respectively; or a gap is formed between the first limiting part and/or the second limiting part and the first substrate or the second substrate, and one end of the ventilation channel is communicated to the gap. The above mode makes the structural design of the ventilation channel simpler, and makes the air in the ventilation channel easier to discharge.
Wherein the vent channel comprises a curvilinear and/or linear type. The ventilation channel with the design mode is simple in structural design and easy to realize in process.
The limiting structure further comprises a third limiting part located between the first limiting part and the second limiting part, the third limiting part is connected with the surface of the first substrate and/or the surface of the second substrate, and at least one channel is arranged on at least one side wall of the third limiting part, which is close to the accommodating space. The design mode can further increase the drawing resistance of the packaging adhesive.
Another technical solution adopted by the present application is to provide a display device, which includes the display panel provided in any one of the foregoing embodiments.
The beneficial effect of this application is: the display panel comprises a limiting structure, wherein the limiting structure is located at least one edge position between a first substrate and a second substrate which are oppositely arranged, the edge position is located in a non-display area of the display panel, the limiting structure comprises a first limiting piece and a second limiting piece which are arranged at intervals, the first limiting piece, the second limiting piece, the first substrate and the second substrate which are located between the first limiting piece and the second limiting piece are jointly surrounded to form an accommodating space, and at least one channel is arranged on the inner wall of the first limiting piece and/or the second limiting piece which is located in the accommodating space; the packaging adhesive can be filled in the accommodating space and can further extend to at least part of the channel. On one hand, the position of the packaging adhesive can be limited by the limiting structure, so that the probability that the packaging adhesive collapses and widens in the process of laminating the first substrate and the second substrate is reduced, and the purpose of controlling the width and the position of the packaging adhesive is achieved; on the other hand, because the channel is arranged on one side of the limiting part in the limiting structure, which is in contact with the packaging adhesive, the packaging adhesive extends into the channel, the contact area between the packaging adhesive and the limiting structure can be increased, and the anti-pulling performance of the packaging adhesive is further improved, so that the reliability of the display panel is increased, and the narrow frame is favorably realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:
FIG. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of another embodiment of a display panel according to the present application;
FIG. 3 is a schematic structural view of an embodiment of a labyrinth groove formed on a corresponding inner wall of the channel in FIG. 1;
FIG. 4 is a schematic structural diagram of another embodiment of a display panel according to the present application;
fig. 5 is a schematic structural diagram of another embodiment of a display panel according to the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all 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 application.
One technical solution adopted in the present application is to provide a display panel, please refer to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of the display panel of the present application, the display panel 10 may be an OLED display panel, a Micro-OLED display panel, and the like, the display panel 10 generally defines a display area AA and a non-display area CC located around the display area AA, and includes a first substrate 100, a second substrate 102, a limiting structure 104, and an encapsulation adhesive 106.
Specifically, the first substrate 100 is disposed opposite to the second substrate 102; one of the first substrate 100 and the second substrate 102 is a substrate of the display panel 10, and the other is a cover plate of the display panel 10, and the first substrate 100 and the second substrate 102 may be made of glass or the like.
The position-limiting structure 104 is located at least one edge position between the first substrate 100 and the second substrate 102, and the edge position is located in the non-display area CC of the display panel 10, so that the position-limiting structure 104 does not affect normal display. In addition, the position limiting structures 104 may be located at all edge positions between the first substrate 100 and the second substrate 102, and orthographic projections of the position limiting structures 104 located at all edge positions on the display panel 10 are annular, so as to further improve the position limiting effect. The position-limiting structure 104 includes a first position-limiting member 1040 and a second position-limiting member 1042 arranged at an interval, the first position-limiting member 1040, the second position-limiting member 1042, and the first substrate 100 and the second substrate 102 located between the first position-limiting member 1040 and the second position-limiting member 1042 are jointly defined to form an accommodating space (not labeled); at least one channel 1044 is disposed on the inner wall a of the accommodating space of the first limiting member 1040 and/or the second limiting member 1042. The package adhesive 106 is filled in the accommodating space and extends into at least a portion of the trench 1044. The material of the sealing adhesive 106 may be Frit glass, etc.
In the embodiment, the first position-limiting member 1040 is directly and fixedly connected to the surface of the first substrate 100, and the second position-limiting member 1042 is directly and fixedly connected to the surface of the second substrate 102. In terms of process, the structure may be realized by growing the first position-limiting member 1040 from the surface of the first substrate 100, and the design method may reduce the probability of the first position-limiting member 1040 separating from the first substrate 100; the second limiting member 1042 is grown from the surface of the second substrate 102, and the design method can reduce the probability that the second limiting member 1042 is separated from the second substrate 102. Of course, in other embodiments, the first limiting member 1040 and the second limiting member 1042 may also be directly fixed on the same substrate, and at this time, the first limiting member 1040 and the second limiting member 1042 may be grown from the same substrate. In addition, in the present embodiment, the cross-sections of the first limiting member 1040 and the second limiting member 1042 along the direction from the first substrate 100 to the second substrate 102 may be trapezoidal, rectangular, etc. Preferably, the first limiting member 1040 has a regular trapezoid cross section, and the second limiting member 1042 has an inverse trapezoid cross section. The design can increase the contact area between the package adhesive 106 and the first and second stoppers 1040 and 1042.
On one hand, the position of the packaging adhesive 106 can be limited by the arrangement of the limiting structure 104, so that the probability that the packaging adhesive 106 collapses and widens in the process of laminating the first substrate 100 and the second substrate 102 is reduced, and the purpose of controlling the width and the position of the packaging adhesive 106 is achieved; on the other hand, since the channel 1044 is disposed on one side of the limiting structure 104 where the first limiting member 1040 and/or the second limiting member 1042 contact the encapsulation adhesive 106, and the encapsulation adhesive 106 extends into at least a portion of the channel 1044, a contact area between the encapsulation adhesive 106 and the limiting structure 104 can be increased, a pull-out resistance of the encapsulation adhesive 106 is increased, and thus reliability of the display panel 10 is increased, which is beneficial to realizing a narrow bezel.
In one embodiment, as shown in fig. 1, the extending directions of the channels 1044 on the same stopper are not exactly the same. For example, an angle between the extending direction of the partial channel 1044 and the vertical direction of the first substrate 100 is 90 °, an angle between the extending direction of the partial channel 1044 and the vertical direction of the first substrate 100 is acute, and an angle between the extending direction of the partial channel 1044 and the vertical direction of the first substrate 100 is obtuse. This design may cause the package adhesive 106 extending into the channel 1044 to root in the corresponding stoppers like a root system, thereby increasing the pull-out resistance of the package adhesive 106.
In another embodiment, as shown in fig. 2, at least one channel 1044a is disposed on the inner wall B of the first limiting member 1040a and the second limiting member 1042a in the accommodating space (not labeled), and the channel 1044a disposed on the first limiting member 1040a and the channel 1044a disposed on the second limiting member 1040a are symmetrical to each other. The symmetrical design mode can ensure that the left side and the right side of the packaging adhesive 106a in the accommodating space are stressed uniformly when the packaging adhesive is drawn, and the probability of breakage of the packaging adhesive 106a on one side due to nonuniform stress is reduced. Of course, in other embodiments, the channel 1044a disposed on the first limiting member 1040a and the channel 1044a disposed on the second limiting member 1042a may also be disposed asymmetrically, as long as the left and right sides can be designed to make the stress on the package adhesive 106a uniform.
In yet another embodiment, as shown in FIG. 3, FIG. 3 is a longitudinal sectional view of the channel of FIG. 1 taken along the inner wall in a direction away from the inner wall, in which the channel forms a labyrinth groove structure. A plurality of channels 1044b provided on an inner wall (not labeled in fig. 3) of the first retaining member 1040b communicate with each other to form a labyrinth groove, which is a channel design similar to a labyrinth form, and the design manner of the labyrinth groove is not limited to that given in fig. 3. The labyrinth grooves may be designed such that the drawing force between the package adhesive 106 and the first stopper 1040b is relatively large. Of course, the plurality of channels 1044 disposed on the inner wall of the second limiting member 1042 may also be communicated with each other to form a labyrinth groove, and the structure of the labyrinth groove on the second limiting member 1042 may be the same as or different from the structure of the labyrinth groove on the first limiting member 1040b, which is not limited in this application.
In another embodiment, referring to fig. 1 again, the display panel 10 provided by the present application further includes: a vent channel 108 located within the retaining structure 104, the vent channel 108 being in communication with at least a portion of the channels 1044 within the retaining structure 104 in which it is located, and at least one end of the vent channel 108 being in communication with the exterior side of the retaining structure 104 in which it is located. For example, as shown in fig. 1, a plurality of channels 1044 are disposed on the first limiting member 1040 and the second limiting member 1042, the number of the vent channels 108 is two, and the two vent channels are disposed in the first limiting member 1040 and the second limiting member 1042, respectively, and each vent channel 108 is communicated with at least a portion of the channels 1044 in the corresponding limiting member. For another example, a plurality of channels 1044 are disposed on the first limiting member 1040 or the second limiting member 1042, the number of the ventilation channels 108 is one, the ventilation channels 108 are disposed in the limiting members provided with the channels 1044, and the ventilation channels 108 are communicated with at least some of the channels 1044 in the corresponding limiting members. When the packaging adhesive 106 is formed by Frit glass powder through melting and solidification processes, the ventilation channel 108 is arranged in a manner that air generated in the channel 1044 when the packaging adhesive 106 is solidified can be exhausted, so that the probability of generating air holes in the packaging adhesive 106 is reduced, and the probability of generating cracks when the packaging adhesive 106 is pulled is further reduced. Of course, in other embodiments, a vent bypass channel may be introduced to connect the middle portion of the vent channel 108 to the outside of the stop.
Further, in the present embodiment, as shown in fig. 1, the first limiting member 1040 includes an inner wall a located in the accommodating space and an outer wall C located opposite to the inner wall a, the plurality of channels 1044 disposed on the first limiting member 1040 include bottom walls far away from the accommodating space (i.e., the bottom of the side close to the outer wall C is not labeled), and the ventilation channel 108 in the first limiting member 1040 is communicated with the bottom walls of the plurality of channels 1044. This design is more favorable for the venting channels 108 to exhaust the air in the channels 1044, so that the formed packaging adhesive 106 is more uniform. Of course, the second limiting member 1042 can also adopt the above design and has corresponding technical effects. For example, the second limiting member 1042 includes an inner wall D located in the accommodating space and an outer wall E disposed opposite to the inner wall D, the plurality of channels 1044 disposed on the second limiting member 1042 include a bottom wall far away from the accommodating space (i.e., the bottom of the side close to the outer wall E is not labeled), and the ventilation channels 108 in the second limiting member 1042 are communicated with the bottom walls of the plurality of channels 1044.
Further, in the present embodiment, referring to fig. 1 again, a gap is formed between the first position-limiting member 1040 and/or the second position-limiting member 1042, where the vent channel 108 is located, and the first substrate 100 or the second substrate 102, one end of the vent channel 108 is connected to the gap (not labeled), and air in the channel 1044 passes through the vent channel 108 and is then exhausted through the gap. That is, the arrangement of the gap makes the structural design of the ventilation channel 108 simpler, and makes the air in the ventilation channel 108 easier to be discharged.
Furthermore, as shown in fig. 1, one end of the first limiting member 1040 and/or the second limiting member 1042 at which the vent channel 108 is located has a gap with the first substrate 100 or the second substrate 102, and the other end of the first limiting member 1040 and/or the second limiting member 1042 can directly contact with the first substrate 100 or the second substrate 102, at this time, the vent channel 108 can be provided with a vent branch channel 101, one end of the vent branch channel 101 is communicated with the vent channel 108, and the other end of the vent branch channel 101 is communicated with a non-inner wall of the limiting member at which the vent branch channel 101 is located, so as to exhaust air in the vent channel 108, the non-inner wall can be an outer wall arranged opposite to an inner wall, or can be an unobstructed side wall adjacent to the inner wall, which is not limited in this.
Of course, in other embodiments, as shown in fig. 4, fig. 4 is a schematic structural diagram of another embodiment of the display panel of the present application. The first limiting member 1040 and/or the second limiting member 1042 at the position of the ventilation channel 108b of the display panel 10b are disposed in direct contact with the first substrate 100b and the second substrate 102b, respectively, the first limiting member 1040 and/or the second limiting member 1042 at the position of the ventilation channel 108b include an outer wall G disposed opposite to the inner wall F, and at least one end of the ventilation channel 108b is connected to the outer wall G. This design may make the structural design of the vent channel 108b simpler and make the air in the vent channel 108b easier to exhaust. Of course, at least one end of the ventilation channel 108b may be connected to the uncovered side wall adjacent to the inner wall F.
In addition, the vent channel 108 in the above embodiments includes a curved shape and/or a straight line shape, preferably, the curved shape is a wave shape, however, the shape of the vent channel 108 may also include other practicable manners, and the present application is not limited thereto. The ventilation channel 108 with the design mode is simple in structural design and easy to realize in process.
In another embodiment, please refer to fig. 5, wherein fig. 5 is a schematic structural diagram of a display panel according to another embodiment of the present application. The limiting structure 104c includes, in addition to the first limiting member 1040c and the second limiting member 1042c in the above embodiments, a third limiting member 1046c located between the first limiting member 1040c and the second limiting member 1042c, and the third limiting member 1046c is connected to a surface of the first substrate 100c and/or the second substrate 102c (that is, the surface of the first substrate 100c and/or the second substrate 102c opposite to each other is provided with the third limiting member 1046c), at least one channel 1044c is disposed on at least one side wall 10460c of the third limiting member 1046c close to the accommodating space, and the encapsulant 106c may further extend into the channel 1044c on the third limiting member 1046 c. This design may further increase the pull-out resistance of the encapsulant 106 c.
In addition, the third limiting element 1046c may be directly grown on the first substrate 100c or the second substrate 102c, and this design manner may reduce the probability that the third limiting element 1046c falls off from the corresponding first substrate 100c or the second substrate 102 c.
In addition, the extending directions of the plurality of channels 1044c provided in the third limiting member 1046c may not be completely the same. For example, the extension direction of the partial channel 1044c may be perpendicular to the horizontal direction of the first substrate 100, the angle between the extension direction of the partial channel 1044c and the horizontal direction of the first substrate 100 is an acute angle, and the angle between the extension direction of the partial channel 1044c and the horizontal direction of the first substrate 100 is an obtuse angle. This design may further increase the pull-out resistance of the encapsulant 106 c.
Further, in order to eliminate air generated when the package adhesive 106c is solidified in the third limiting member 1046c, the ventilation channel 108c may be disposed in the third limiting member 1046 c. If a gap exists between the third limiting member 1046c and the first limiting member 1040c and/or the second limiting member 1042c located beside the third limiting member 1046c, one end of the ventilation channel 108c in the third limiting member 1046c may be communicated to the gap; if the third limiting member 1046c is in close contact with the first limiting member 1040c and/or the second limiting member 1042c beside the third limiting member 1046c, the ventilation channel 108c in the third limiting member 1046c may communicate with the ventilation channel 108c in the first limiting member 1040c and/or the second limiting member 1042c beside the third limiting member.
Of course, the number of the third limiting members 1046c disposed on the limiting structure 104c may be multiple (e.g., 3, 4, etc.), multiple third limiting members 1046c may be disposed between the first limiting member 1040c and the second limiting member 1042c at intervals, and the number of the third limiting members 1046c may be specifically limited according to the actual situation.
In a specific application scenario, on the premise that other process conditions are consistent, when the limiting structure 104 is not disposed in the display panel 10, the width of the formed encapsulation adhesive 106 is 500um, so that the force required for separating the first substrate 100 and the second substrate 102 in the display panel 10 is 30N; when the position-limiting structure 104 shown in fig. 1 is disposed in the display panel 10, the width of the formed encapsulation adhesive 106 is 400um, and the force required to separate the first substrate 100 from the second substrate 102 in the display panel 10 is 50N. The above experiment results further show that the arrangement of the position limiting structure 104 can control the width of the formed packaging adhesive 106 and improve the pull-out resistance of the packaging adhesive 106.
Another technical scheme that this application adopted provides a display device, including the display panel of any above-mentioned embodiment, this display device can include equipment such as TV, computer, cell-phone, intelligent bracelet, wrist-watch or game machine, and this display device has the screen to account for than big, advantage that the reliability is high. The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (10)
1. A display panel, comprising:
the display device comprises a display area and a non-display area arranged around the display area;
a first substrate;
a second substrate disposed opposite to the first substrate;
the limiting structure is positioned at least one edge position between the first substrate and the second substrate, wherein the edge position is positioned in the non-display area, the limiting structure comprises a first limiting piece and a second limiting piece which are arranged at intervals, and the first limiting piece, the second limiting piece, the first substrate and the second substrate which are positioned between the first limiting piece and the second limiting piece are jointly surrounded to form an accommodating space; at least one channel is arranged on the inner wall of the first limiting part and/or the second limiting part in the accommodating space;
and the packaging adhesive is filled in the accommodating space and extends into at least part of the channel.
2. The display panel according to claim 1,
the extending directions of the channels on the same limiting piece are not identical.
3. The display panel according to claim 1,
the first limiting part and the second limiting part are located on the inner wall of the accommodating space and are provided with at least one channel, and the channel arranged on the first limiting part and the channel arranged on the second limiting part are symmetrical to each other.
4. The display panel according to any one of claims 1 to 3,
the plurality of channels provided on the inner wall of the first retaining member communicate with each other to form a labyrinth groove, and/or the plurality of channels provided on the inner wall of the second retaining member communicate with each other to form a labyrinth groove.
5. The display panel according to claim 1, characterized in that the display panel further comprises:
and the ventilation channel is positioned in the limiting structure, is communicated with at least part of the channels of the limiting structure where the ventilation channel is positioned, and at least one end of the ventilation channel is communicated to the outer side of the limiting structure where the ventilation channel is positioned.
6. The display panel according to claim 5,
the channel comprises a bottom wall far away from the accommodating space, and the ventilation channel is communicated with the bottom wall of the channel.
7. The display panel according to claim 5,
the first limiting part and/or the second limiting part are/is arranged in direct contact with the first substrate and the second substrate respectively; alternatively, the first and second electrodes may be,
gaps are formed between the first limiting piece and/or the second limiting piece and the first substrate or the second substrate, and one end of the ventilation channel is communicated to the gaps.
8. The display panel according to any one of claims 5 to 7,
the vent channel may comprise a curvilinear and/or linear type.
9. The display panel according to claim 1,
the limiting structure further comprises a third limiting part located between the first limiting part and the second limiting part, the third limiting part is connected with the surface of the first substrate and/or the surface of the second substrate, and at least one channel is arranged on at least one side wall of the third limiting part, which is close to the accommodating space.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
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| CN201911150390.XA CN110782800A (en) | 2019-11-21 | 2019-11-21 | Display panel and display device |
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| CN201911150390.XA CN110782800A (en) | 2019-11-21 | 2019-11-21 | Display panel and display device |
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Application publication date: 20200211 |