CN112652247B - Display device - Google Patents
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- CN112652247B CN112652247B CN202110008370.XA CN202110008370A CN112652247B CN 112652247 B CN112652247 B CN 112652247B CN 202110008370 A CN202110008370 A CN 202110008370A CN 112652247 B CN112652247 B CN 112652247B
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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
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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Abstract
The invention discloses a display device, which relates to the technical field of display and comprises: the cover plate is positioned on the light emergent side of the display panel; the display panel comprises an array substrate, wherein the array substrate comprises a display area and a non-display area surrounding the display area, and the non-display area comprises a step area; at least one first retaining wall is arranged on one side, close to the cover plate, of the array substrate, the first retaining wall is located in the step area, and the first retaining wall is of an annular structure provided with an accommodating space; at least one buffer component is arranged between the array substrate and the cover plate, and at least part of the buffer component is positioned in the accommodating space of the corresponding first retaining wall; in the direction perpendicular to the array substrate, the buffer component comprises a first surface and a second surface which are oppositely arranged, wherein at least part of the first surface is abutted with the cover plate, and at least part of the second surface is abutted with the array substrate. The invention is beneficial to solving the problem that the step area is easy to generate fragmentation in the display device in the prior art.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display device.
Background
With the rapid development of display technology, both the size and the display quality of display devices have been developed in a breakthrough manner. Therefore, display devices are increasingly used in the life of people.
However, in the structural strength test, it was found that the step area of the existing display device is easily cracked, and the impact resistance and drop resistance of the product are poor. In order to solve the problem that the step area in the display device is easy to break under the action of external force, silicone adhesive with a buffering effect is arranged between the display panel and the cover plate in the step area of the display device, but the silicone adhesive has certain fluidity, so that the ratio of the contact area between the silicone adhesive and the cover plate to the contact area between the silicone adhesive and the display panel is less than 60%, the contact area between the silicone adhesive and the cover plate is smaller, and the problem that the step area in the display device is easy to break is improved slightly.
Disclosure of Invention
In view of the above, the present invention provides a display device, which is beneficial to solving the problem that the step region is easily broken in the display device in the prior art.
The present invention provides a display device including: the cover plate is positioned on the light emergent side of the display panel; the display panel comprises an array substrate, wherein the array substrate comprises a display area and a non-display area surrounding the display area, and the non-display area comprises a step area; at least one first retaining wall is arranged on one side, close to the cover plate, of the array substrate, the first retaining wall is located in the step area, and the first retaining wall is of an annular structure provided with an accommodating space; at least one buffer component is arranged between the array substrate and the cover plate, the buffer components correspond to the first retaining walls one by one, and at least part of the buffer components are positioned in the accommodating space of the corresponding first retaining wall; in the direction perpendicular to the array substrate, the buffer component comprises a first surface and a second surface which are oppositely arranged, wherein at least part of the first surface is abutted with the cover plate, and at least part of the second surface is abutted with the array substrate.
Compared with the prior art, the display device provided by the invention at least realizes the following beneficial effects:
the display device provided by the invention comprises a cover plate and a display panel which are oppositely arranged, wherein the cover plate is positioned on the light emergent side of the display panel. The display panel includes an array substrate including a display region and a non-display region surrounding the display region, the non-display region including a step region. Be equipped with a buffer unit between array substrate and the apron, in the direction of perpendicular to array substrate, buffer unit is including relative first surface and the second surface that sets up, the at least part of first surface and apron looks butt, the at least part of second surface and array substrate looks butt, can play the supporting role between apron and array substrate well step district through buffer unit, and then when display device is receiving external force, buffer unit can play the cushioning effect, avoid the stress concentration of step district among the display device and produce and break, and then can improve display device's shock resistance and anti falling ability. And one side of the array substrate close to the cover plate is provided with a first retaining wall, the first retaining wall is positioned in the step area, the first retaining wall is of an annular structure provided with a containing space, the buffer components correspond to the first retaining walls one to one, at least part of the buffer components are positioned in the containing space of the first retaining wall corresponding to the buffer components, namely, at least the part of the buffer components close to the array substrate is formed in the first retaining wall, the material forming the buffer components has certain fluidity, the buffer components are effectively prevented from overflowing all around in the forming process of the buffer components through the first retaining wall, the area of the vertical projection pattern of the first surface of the buffer components on the array substrate is favorably increased, the supporting capacity and the buffering capacity of the buffer components on the cover plate are improved, the phenomenon that the step area in the display device is concentrated in stress and broken is further avoided, and the impact resistance and the drop resistance of the display device are further improved.
Of course, it is not necessary for any product in which the present invention is practiced to specifically achieve all of the above-described technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic plan view of a display device according to the present invention;
FIG. 2 is a cross-sectional view of the display device of FIG. 1 taken along A-A';
FIG. 3 is a schematic plan view of another display device provided by the present invention;
FIG. 4 is a cross-sectional view of the display device of FIG. 3 taken along line B-B';
FIG. 5 is a schematic plan view of another display device provided in the present invention;
FIG. 6 is a cross-sectional view of the display device of FIG. 5 taken along line C-C';
FIG. 7 is a schematic plan view of another display device provided in the present invention;
FIG. 8 is a cross-sectional view of the display device of FIG. 7 taken along line D-D';
FIG. 9 is a schematic plan view of still another display device provided in the present invention;
FIG. 10 is a cross-sectional view of the display device of FIG. 9 taken along line E-E';
FIG. 11 is a schematic plan view of still another display device provided in the present invention;
fig. 12 is a schematic plan view of another display device provided by the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Fig. 1 is a schematic plan view of a display device according to the present invention, fig. 2 is a cross-sectional view of the display device shown in fig. 1 along a-a', and referring to fig. 1 and 2, the present embodiment provides a display device including: the display panel comprises a cover plate 100 and a display panel 200 which are oppositely arranged, wherein the cover plate 100 is positioned on the light emergent side of the display panel 200;
the display panel 200 includes an array substrate 210, the array substrate 210 including a display area AA and a non-display area NA surrounding the display area AA, the non-display area NA including a step area NA 1;
at least one first retaining wall 300 is disposed on one side of the array substrate 210 close to the cover plate 100, the first retaining wall 300 is located in the step area NA1, and the first retaining wall 300 is an annular structure with a receiving space;
at least one buffer member 400 is disposed between the array substrate 210 and the cover plate 100, the buffer members 400 correspond to the first retaining walls 300 one by one, and at least a portion of the buffer members 400 is located in the accommodating space of the corresponding first retaining wall 300;
in a direction perpendicular to the array substrate 210, the buffer member 400 includes a first surface 410 and a second surface 420 that are disposed opposite to each other, the first surface 410 is at least partially abutted against the cover plate 100, and the second surface 420 is at least partially abutted against the array substrate 210.
Specifically, the display device provided in this embodiment includes a cover plate 100 and a display panel 200 that are disposed opposite to each other, the cover plate 100 is located on the light exit side of the display panel 200, and the cover plate 100 can protect the display panel 200 covered by the cover plate 100.
The display panel 200 includes an array substrate 210 and a color filter substrate 220 that are disposed opposite to each other, the array substrate 210 includes a display area AA and a non-display area NA surrounding the display area AA, the non-display area NA includes a step area NA1, and the array substrate 210 extends outward relative to the color filter substrate 220 to form a step area NA 1.
The buffer component 400 is arranged between the array substrate 210 and the cover plate 100, in the direction perpendicular to the array substrate 210, the buffer component 400 comprises a first surface 410 and a second surface 420 which are oppositely arranged, at least part of the first surface 410 is abutted against the cover plate 100, at least part of the second surface 420 is abutted against the array substrate 210, the buffer component 400 can play a supporting role between the cover plate 100 and a step area NA1 in the array substrate 210, and further when the display device is subjected to an external force, the buffer component 400 can play a buffering role, so that the step area stress concentration in the display device is avoided from generating cracks, and further the impact resistance and the drop resistance of the display device can be improved. And one side of the array substrate 210 close to the cover plate 100 is provided with a first retaining wall 300, the first retaining wall 300 is located in the step area NA1, the first retaining wall 300 is an annular structure provided with a receiving space, the buffer members 400 are in one-to-one correspondence with the first retaining walls 300, at least part of the buffer members 400 are located in the receiving space of the corresponding first retaining wall 300, that is, at least a portion of the buffer member 400 near the array substrate 210 is formed in the first retaining wall 300, the material forming the buffer member 400 has certain fluidity, the first walls 300 effectively prevent the buffer member 400 from overflowing during the formation process thereof, which is beneficial to increase the area of the vertical projection pattern of the first surface 410 of the buffer member 400 on the array substrate 210, therefore, the supporting capability and the buffering capability of the buffering component 400 on the cover plate 100 are improved, the fracture caused by stress concentration of the step area NA1 in the display device is further avoided, and the impact resistance and the drop resistance of the display device are further improved.
With continued reference to fig. 1 and 2, optionally, the material of the first retaining wall 300 is one or more of an organic material, foam, light-cured adhesive and rubber, and the material of the buffer component 400 is silicone adhesive.
In the display device provided in this embodiment, the first retaining wall 300 may be obtained by etching an organic film layer, or may be formed by coating, bonding, or other processes.
It should be noted that the present embodiment exemplarily shows that the material of the first retaining wall 300 may be one or more of an organic material, foam, a light-cured adhesive and rubber, and the material of the buffer component 400 is a silicone adhesive. In other embodiments of the present invention, the first retaining wall 300 may be made of other materials, and the buffering component 400 may be made of other materials, which are not described herein again.
Optionally, the vertical projection pattern of the first retaining wall on the array substrate is one or more of a circle, a rectangle, an ellipse and a polygon.
It should be noted that, in other embodiments of the present invention, the shape of the first retaining wall may be set according to the shape of the buffering component in actual production requirements, and the vertical projection pattern of the first retaining wall on the array substrate may also be in other shapes, which is not described in detail herein.
With continuing reference to FIG. 1 and FIG. 2, alternatively, wherein, in the direction perpendicular to the array substrate 210, the height of the buffer member 400 is H, and the height of the first retaining wall 300 is H1, wherein H1 ≧ H × 80%;
the area of the perpendicular projection pattern of the first surface 410 on the array substrate 210 is s1, and the area of the perpendicular projection pattern of the second surface 420 on the array substrate 210 is s2, wherein s1/s2 is greater than or equal to 80%.
Specifically, the buffer member 400 is formed in the first wall 300, the material forming the buffer member 400 has certain fluidity, the first wall 300 effectively prevents the buffer member 400 from overflowing around during the formation process, and in the direction perpendicular to the array substrate 210, the height of the buffer member 400 is H, the height of the first wall 300 is H1, wherein H1 is equal to or greater than H × 80%, so that the ratio of the area of the first surface 410 of the buffer member 400 in the vertical projection pattern of the array substrate 210 to the area of the second surface 420 in the vertical projection pattern of the array substrate 210 is greater than or equal to 80%, the area of the first surface 410 of the buffer member 400 in the vertical projection pattern of the array substrate 210 is effectively increased, the supporting capability and the buffering capability of the buffer member 400 on the cover plate 100 are increased, and further the occurrence of cracks caused by stress concentration of the step area NA1 in the display device is avoided, further improving the impact and drop resistance of the display device.
Fig. 3 is a schematic plan view of another display device provided by the present invention, and fig. 4 is a cross-sectional view of the display device shown in fig. 3 along B-B', referring to fig. 3 and 4, alternatively, at least one second retaining wall 500 is disposed on one side of the cover plate 100 close to the array substrate 210, the second retaining wall 500 is located in the stepped area NA1, the second retaining wall 500 corresponds to the first retaining wall 300, and the buffer member 400 is partially in contact with the second retaining wall 500.
Specifically, a second retaining wall 500 is disposed on one side of the cover plate 100 close to the array substrate 210 in the display device, the second retaining wall 500 is located in the step area NA1, the second retaining wall 500 corresponds to the first retaining wall 300 one by one, and a portion of the buffer member 400 close to the cover plate 100 contacts with the second retaining wall 500, so that the material forming the buffer member 400 has certain fluidity, the second retaining wall 500 further prevents the buffer member 400 from overflowing around in the forming process of the buffer member 400, the area of the vertical projection pattern of the first surface 410 in the buffer member 400 on the array substrate 210 is further increased, thereby improving the supporting capability and the buffering capability of the buffer member 400 on the cover plate 100, further preventing the step area NA1 in the display device from being cracked due to stress concentration, and further improving the impact resistance and the drop resistance of the display device.
With continued reference to fig. 3 and 4, optionally, one of the second retaining walls 500 includes a first sub-portion 510, the first sub-portion 510 is a ring-shaped structure with a receiving space, and the buffering component 400 is at least partially located in the receiving space of the second retaining wall 500.
Specifically, a second retaining wall 500 includes a first subsection 510, the first subsection 510 is an annular structure having a receiving space, at least a portion of the buffer member 400 close to the cover plate 100 is formed in the receiving space of the second retaining wall 500, the second retaining wall 500 further prevents the buffer member 400 from overflowing around during the formation process of the buffer member 400, and the area of the vertical projection pattern of the first surface 410 of the buffer member 400 on the array substrate 210 is further increased, so that the supporting capability and the buffering capability of the buffer member 400 on the cover plate 100 are improved, the fracture caused by stress concentration of the step area NA1 in the display device is further avoided, and the impact resistance and the drop resistance of the display device are further improved.
With continued reference to fig. 3 and 4, alternatively, the vertical projection of the first wall 300 on the array substrate 210 surrounds the vertical projection of the corresponding first sub-portion 510 on the array substrate 210.
Specifically, the buffering member 400 is formed in the accommodating space formed by the first portions 510 of the first wall 300 and the second wall 500, and the first portions 510 of the first wall 300 and the second wall 500 further prevent the buffering member 400 from overflowing around during the formation process of the buffering member 400. And the vertical projection of the first retaining wall 300 on the array substrate 210 surrounds the vertical projection of the corresponding first subsection 510 on the array substrate 210, the arrangement of the first subsection 510 in the second retaining wall 500 does not increase the occupied area of the first retaining wall 300 on the step area, which is beneficial to realizing a narrow frame.
Fig. 5 is a schematic plan view of another display device provided by the present invention, and fig. 6 is a cross-sectional view of the display device shown in fig. 5 along C-C', referring to fig. 5 and 6, in which, alternatively, a vertical projection of the first sub-portion 510 on the array substrate 210 surrounds a vertical projection of the corresponding first wall 300 on the array substrate 210.
Specifically, the buffering member 400 is formed in the accommodating space formed by the first portions 510 of the first wall 300 and the second wall 500, and the first portions 510 of the first wall 300 and the second wall 500 further prevent the buffering member 400 from overflowing around during the formation process. And the vertical projection of the first sub-portion 510 on the array substrate 210 surrounds the vertical projection of the corresponding first retaining wall 300 on the array substrate 210, so that the area of the vertical projection pattern of the first surface 410 on the array substrate 210 in the buffer member 400 is further increased, the supporting capability and the buffering capability of the buffer member 400 on the cover plate 100 are further increased, the fracture caused by stress concentration of the step area NA1 in the display device is further avoided, and the impact resistance and the drop resistance of the display device are further improved.
Fig. 7 is a schematic plan view of another display device provided by the present invention, and fig. 8 is a cross-sectional view of the display device shown in fig. 7 along D-D', referring to fig. 7 and 8, in which, alternatively, one second wall 500 includes at least one second subsection 520, the second subsection 520 is a block structure, and a vertical projection of the first wall 300 on the array substrate 210 surrounds a vertical projection of the corresponding second subsection 520 on the array substrate 210.
Specifically, the second blocking wall 500 includes a second subsection 520, the second subsection 520 is a block structure, the perpendicular projection of the first blocking wall 300 on the array substrate 210 surrounds the perpendicular projection of the corresponding second subsection 520 on the array substrate 210, at least part of the first surface 410 of the buffering member 400 is in contact with the second subsection 520, the adhesion between the buffering member 400 and the second subsection 520 is relatively large, the second subsection 520 further prevents the part of the buffering member 400, which is close to the cover plate 100, from overflowing around during the formation of the buffering member 400, and the area of the perpendicular projection pattern of the first surface 410 of the buffering member 400 on the array substrate 210 is further increased, so that the supporting capacity and the buffering capacity of the buffering member 400 on the cover plate 100 are improved, the cracking caused by the stress concentration of the step area NA1 in the display device is further avoided, and the impact resistance and the drop resistance of the display device are further improved.
Fig. 9 is a schematic plan view of still another display device according to the present invention, fig. 10 is a cross-sectional view of the display device shown in fig. 9 taken along line E-E', and referring to fig. 9 and 10, optionally, the second partition wall 500 includes a first sub-portion 510 and a second sub-portion 520, the first sub-portion 510 is a ring structure having a receiving space, the second sub-portion 520 is a block structure, and the second sub-portion 520 is located in the receiving space of the first sub-portion 510, the first and second subsections 510 and 520 further prevent the buffer member 400 from overflowing around during the formation process thereof, further increase the area of the perpendicular projection pattern of the first surface 410 on the array substrate 210 in the buffer member 400, therefore, the supporting capability and the buffering capability of the buffering component 400 on the cover plate 100 are improved, the fracture caused by stress concentration of the step area NA1 in the display device is further avoided, and the impact resistance and the drop resistance of the display device are further improved.
With continued reference to fig. 3 and 4, optionally, wherein, in the direction perpendicular to the array substrate 210, the height of the buffer component 400 is H, the height of the first retaining wall 300 is H1, and the height of the second retaining wall 500 is H2, wherein H1 is greater than or equal to H × 50%, H2 is greater than or equal to H × 40%,
the area of the perpendicular projection pattern of the first surface 410 on the array substrate 210 is s1, and the area of the perpendicular projection pattern of the second surface 420 on the array substrate 410 is s2, wherein s1/s2 is greater than or equal to 80%.
Specifically, in the display device, a first retaining wall 300 is disposed on one side of the array substrate 210 close to the cover plate 100, a second retaining wall 500 is disposed on one side of the cover plate 100 close to the array substrate 210, the first retaining wall 300 and the second retaining wall 500 are both located in the step area NA1, the second retaining wall 500 corresponds to the first retaining wall 300 one by one, a portion of the buffer member 400 close to the array substrate 210 contacts the first retaining wall 300, a portion of the buffer member 400 close to the cover plate 100 contacts the second retaining wall 500, and the first retaining wall 300 and the second retaining wall 500 effectively prevent the buffer member 400 from overflowing around in the forming process. In the direction perpendicular to the array substrate 210, the height of the buffer member 400 is H, the height of the first retaining wall 300 is H1, and the height of the second retaining wall 500 is H2, wherein H1 is not less than H × 50%, and H2 is not less than H × 40%, so that the ratio of the area of the vertical projection pattern of the first surface 410 of the buffer member 400 on the array substrate 210 to the area of the vertical projection pattern of the second surface 420 on the array substrate 210 is not less than 80%, and the area of the vertical projection pattern of the first surface 410 of the buffer member 400 on the array substrate 210 is effectively increased, thereby increasing the supporting capability and the buffering capability of the buffer member 400 on the cover plate 100, further avoiding the occurrence of fracture due to stress concentration of the step area NA1 in the display device, and further improving the impact resistance and drop resistance of the display device.
It should be noted that fig. 3 and 4 exemplarily show H1 ≧ H × 50% and H2 ≧ H × 40%, and similarly, when H1 ≧ H × 40% and H2 ≧ H × 50%, the area of the vertically projected pattern of the first surface 410 on the array substrate 210 in the buffer component 400 is s1, and the area of the vertically projected pattern of the second surface 420 on the array substrate 410 is s2, where s1/s2 ≧ 80%, which is not described herein again.
Fig. 11 is a schematic plan view of still another display device provided in the present invention, and referring to fig. 11, the display device further includes a flexible circuit board 600;
the flexible wiring board 600 is bound to a side of the stepped area NA1 away from the display area AA along the first direction X, the buffer member 400 extends along the second direction Y, and the buffer member Y is located between the display area AA and the flexible wiring board 600, wherein the first direction X and the second direction Y intersect.
Specifically, the display device provided in this embodiment has a driving Chip disposed On the flexible printed circuit board 600 in a Chip On FPC format (hereinafter referred to as COF format), where the driving Chip (not shown in the figure) is disposed On the flexible printed circuit board. Along the first direction X, the flexible printed circuit 600 is bound on the side of the step area NA1 away from the display area AA, the buffer member Y may be located between the display area AA and the flexible printed circuit 600, and the arrangement of the buffer member Y does not affect the arrangement of the flexible printed circuit 600. And the buffer member 400 extends along the second direction Y, which effectively improves the setting size of the buffer member 400 and improves the supporting performance and the buffering performance of the buffer member 400 for the display device.
Fig. 12 is a schematic plan view of still another display device provided in the present invention, and referring to fig. 12, the display device further includes a driving chip 700 and a flexible circuit board 600;
along the first direction X, the flexible circuit board 600 is bound at one side of the step area NA1 away from the display area AA, and the driving chip 700 is bound among the step area NA1, the flexible circuit board 600 and the display area AA;
the display device includes two buffer members 400, and the two buffer members 400 are located at both sides of the driving chip 700 in a second direction Y, wherein the first direction X and the second direction Y intersect.
Specifically, in the display device provided in this embodiment, the driving Chip 700 is disposed in a Chip On Glass, which is hereinafter referred to as COG, the COG is formed by directly disposing the driving Chip 700 On a Glass substrate of the array substrate 210, along the first direction X, the flexible circuit board 600 is bound On one side of the step area NA1 away from the display area AA, the driving Chip 700 is bound between the step area NA1, the flexible circuit board 600 and the display area AA, and the two buffer members 400 are located On two sides of the driving Chip 700 along the second direction Y, so that the arrangement of the buffer members Y does not affect the arrangement of the flexible circuit board 600 and the driving Chip 700. The first direction X intersects the second direction Y, and optionally, the first direction X is perpendicular to the second direction Y.
As can be seen from the above embodiments, the display device provided by the present invention at least achieves the following beneficial effects:
the display device provided by the invention comprises a cover plate and a display panel which are oppositely arranged, wherein the cover plate is positioned on the light emergent side of the display panel. The display panel includes an array substrate including a display region and a non-display region surrounding the display region, the non-display region including a step region. Be equipped with a buffer unit between array substrate and the apron, in the direction of perpendicular to array substrate, buffer unit is including relative first surface and the second surface that sets up, the at least part of first surface and apron looks butt, the at least part of second surface and array substrate looks butt, can play the supporting role between apron and array substrate well step district through buffer unit, and then when display device is receiving external force, buffer unit can play the cushioning effect, avoid the stress concentration of step district among the display device and produce and break, and then can improve display device's shock resistance and anti falling ability. And one side of the array substrate, which is close to the cover plate, is provided with a first retaining wall, the first retaining wall is positioned in the step area, the first retaining wall is of an annular structure provided with an accommodating space, the buffer component is in one-to-one correspondence with the first retaining wall, at least part of the buffer component is positioned in the accommodating space of the first retaining wall corresponding to the buffer component, namely, at least the part, which is close to the array substrate, in the buffer component is formed in the first retaining wall, the material for forming the buffer component has certain fluidity, the buffer component is effectively prevented from overflowing all around in the forming process of the buffer component through the first retaining wall, the area of a vertical projection pattern of the first surface on the array substrate in the buffer component is favorably improved, so that the supporting capacity and the buffering capacity of the buffer component on the cover plate are improved, further, the phenomenon that the step area in the display device is concentrated in stress to generate breakage is avoided, and the impact resistance and the drop resistance of the display device are further improved.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (9)
1. A display device, comprising: the display panel comprises a cover plate and a display panel which are oppositely arranged, wherein the cover plate is positioned on the light emergent side of the display panel;
the display panel comprises an array substrate, wherein the array substrate comprises a display area and a non-display area surrounding the display area, and the non-display area comprises a step area;
at least one first retaining wall is arranged on one side, close to the cover plate, of the array substrate, the first retaining wall is located in the step area, and the first retaining wall is of an annular structure provided with an accommodating space;
at least one buffering component is arranged between the array substrate and the cover plate, the buffering components correspond to the first retaining walls one by one, and at least part of the buffering component is positioned in the accommodating space of the corresponding first retaining wall;
in the direction perpendicular to the array substrate, the buffer component comprises a first surface and a second surface which are oppositely arranged, the first surface is at least partially abutted with the cover plate, and the second surface is at least partially abutted with the array substrate;
at least one second retaining wall is arranged on one side, close to the array substrate, of the cover plate, the second retaining wall is located in the step area, the second retaining walls correspond to the first retaining walls one by one, and the buffering component is in contact with the second retaining walls;
the second retaining wall comprises a first subsection, the first subsection is of an annular structure provided with an accommodating space, and at least part of the buffer component is positioned in the accommodating space of the second retaining wall; alternatively, the first and second electrodes may be,
one the second retaining wall comprises at least one second subsection, the second subsection is of a block structure, and the vertical projection of the first retaining wall on the array substrate surrounds the vertical projection of the second subsection corresponding to the first retaining wall on the array substrate.
2. The display device according to claim 1,
in the direction perpendicular to the array substrate, the height of the buffer component is H, the height of the first retaining wall is H1, wherein H1 is more than or equal to H multiplied by 80%;
the area of the vertical projection pattern of the first surface on the array substrate is s1, the area of the vertical projection pattern of the second surface on the array substrate is s2, and s1/s2 is more than or equal to 80%.
3. The display device according to claim 1,
when one of the second retaining walls comprises one first subsection, the vertical projection of the first retaining wall on the array substrate surrounds the vertical projection of the corresponding first subsection on the array substrate.
4. The display device according to claim 1,
the vertical projection of the first part on the array substrate surrounds the vertical projection of the first retaining wall corresponding to the first part on the array substrate.
5. The display device according to claim 1,
in the direction perpendicular to the array substrate, the height of the buffer component is H, the height of the first retaining wall is H1, and the height of the second retaining wall is H2, wherein H1 is not less than H × 50%, H2 is not less than H × 40%, or H1 is not less than H × 40%, and H2 is not less than H × 50%;
the area of the vertical projection pattern of the first surface on the array substrate is s1, the area of the vertical projection pattern of the second surface on the array substrate is s2, and s1/s2 is more than or equal to 80%.
6. The display device according to claim 1, further comprising a flexible wiring board;
the flexible circuit board is bound on one side of the step area far away from the display area along a first direction, the buffer component extends along a second direction, and the buffer component is located between the display area and the flexible circuit board, wherein the first direction and the second direction are crossed.
7. The display device according to claim 1, further comprising a driver chip and a flexible wiring board;
along a first direction, the flexible circuit board is bound on one side of the step area, which is far away from the display area, and the driving chip is bound among the step area, the flexible circuit board and the display area;
the display device comprises two buffer parts, wherein the two buffer parts are positioned on two sides of the driving chip along a second direction, and the first direction and the second direction are intersected.
8. The display device according to claim 1,
the material of first barricade is one or more in organic material, bubble cotton, light solid glue and the rubber, the material of buffer unit is silicone adhesive.
9. The display device according to claim 1,
the vertical projection pattern of the first retaining wall on the array substrate is one or more of a circle, a rectangle, an ellipse and a polygon.
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