CN112599016A - Display panel, binding structure thereof and display device - Google Patents
Display panel, binding structure thereof and display device Download PDFInfo
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- CN112599016A CN112599016A CN202011579974.1A CN202011579974A CN112599016A CN 112599016 A CN112599016 A CN 112599016A CN 202011579974 A CN202011579974 A CN 202011579974A CN 112599016 A CN112599016 A CN 112599016A
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- 238000004519 manufacturing process Methods 0.000 claims description 15
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 206010040844 Skin exfoliation Diseases 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 4
- 238000002788 crimping Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
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- G—PHYSICS
- 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
- G09F9/301—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 flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0277—Bendability or stretchability details
- H05K1/028—Bending or folding regions of flexible printed circuits
Abstract
The invention discloses a display panel, a binding structure thereof and a display device, and relates to the technical field of display; the binding structure includes a first binding part and a second binding part respectively located on a first component and a second component independent from each other, each of the first binding part and the second binding part including a plurality of binding pads arranged in a first direction and extending in a second direction; the binding structure further comprises at least one first positioning part and at least one second positioning part which is arranged corresponding to the first positioning part, the first positioning part is positioned between any two binding gaskets which are adjacently arranged in the first binding part, and the second positioning part is positioned between any two binding gaskets which are adjacently arranged in the second binding part along the first direction; the first binding part and the second binding part are in compression joint, and the correspondingly arranged first positioning part and the second positioning part are clamped; the bonding structure is beneficial to reducing the risk of peeling between the first bonding part and the second bonding part, thereby improving the good yield of the display panel to which the bonding structure is applied.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel, a binding structure of the display panel and a display device.
Background
With the development of display technology, the requirement of a user on a full-screen is higher and higher, and accordingly, the requirement of manufacturers on the design of a narrow frame of a display device is higher and higher; in the prior art, in order to reduce the height of the lower frame area of the display panel, the height of the flexible circuit board binding area bound with the display panel is also shortened, that is, the effective binding area between the binding pins between the display panel and the corresponding flexible circuit board is also smaller, and the pulling force between the corresponding display panel and the corresponding flexible circuit board is also reduced. Therefore, it is highly desirable to invent a novel bonding structure for bonding a display panel and a flexible circuit board so as to improve the pull-out force between the display panel and the corresponding flexible circuit board.
Disclosure of Invention
In view of this, the present invention provides a display panel, a binding structure thereof and a display device, so as to solve the problem of small pulling force between the display panel and a corresponding flexible circuit board.
In a first aspect, the present application provides a binding structure of a display panel, including a first binding part and a second binding part respectively on a first part and a second part independent from each other, each of the first binding part and the second binding part including a plurality of binding pads arranged in a first direction and extending in a second direction, the first direction intersecting the second direction;
the binding structure further comprises at least one first positioning portion and at least one second positioning portion arranged corresponding to the first positioning portion, the first positioning portion is located between any two adjacent binding pads in the first binding portion, and the second positioning portion is located between any two adjacent binding pads in the second binding portion along the first direction;
the first binding part and the second binding part are pressed and connected, and the first positioning part and the second positioning part which are correspondingly arranged are clamped.
In a second aspect, the present application provides a display panel including a binding structure of the display panel.
In a third aspect, the present application provides a display device including the display panel.
Compared with the prior art, the display panel, the binding structure thereof and the display device provided by the invention at least realize the following beneficial effects:
the application provides a display panel, a binding structure thereof and a display device, wherein a first positioning part and a second positioning part which have corresponding relations are arranged in a first binding part and a second binding part which are arranged oppositely, the first positioning part is arranged in a gap space between binding gaskets included in the first binding part, and the second positioning part is arranged in a gap space between the binding gaskets included in the second binding part, so that when the first binding part and the second binding part are pressed, the first positioning part and the second positioning part which are arranged correspondingly are clamped; under the condition that the area and the thickness of a binding area of the display panel are not increased, the stress between the first binding part and the second binding part in the direction parallel to the light-emitting surface of the display panel is increased, the risk of peeling between the first binding part and the second binding part is reduced, and therefore the yield of the display panel to which the binding structure is applied is improved.
Of course, it is not necessary for any product in which the present invention is practiced to 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 view of a first component and a second component provided in accordance with an embodiment of the present application;
FIG. 2 illustrates a perspective view of a first binding portion and a second binding portion crimped as provided by an embodiment of the present application;
FIG. 3 is a cross-sectional view of AA' of FIG. 2 according to an embodiment of the present application;
FIG. 4 is another cross-sectional view of AA' of FIG. 2, in accordance with an embodiment of the present application;
FIG. 5 illustrates another schematic view of a first component and a second component provided in accordance with an embodiment of the present application;
FIG. 6 illustrates another schematic view of a first component and a second component provided in accordance with an embodiment of the present application;
fig. 7 is a schematic view illustrating a first positioning portion and a second positioning portion provided in an embodiment of the present application;
fig. 8 is another schematic view of the first positioning portion and the second positioning portion provided in the embodiment of the present application;
fig. 9 is another schematic view of the first positioning portion and the second positioning portion provided in the embodiment of the present application;
FIG. 10 is a cross-sectional view of BB' of FIG. 2 according to an embodiment of the present disclosure;
FIG. 11 is another cross-sectional view of BB' of FIG. 2 according to an embodiment of the present disclosure;
fig. 12 is a schematic view of a display panel according to an embodiment of the present disclosure;
fig. 13 is a schematic view of a display device according to an embodiment of the present disclosure.
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.
In the prior art, in order to reduce the height of the lower frame area of the display panel, the height of the flexible circuit board binding area bound with the display panel is also shortened, that is, the effective binding area between the binding pins between the display panel and the corresponding flexible circuit board is also smaller, and the pulling force between the corresponding display panel and the corresponding flexible circuit board is also reduced. Therefore, it is highly desirable to invent a novel bonding structure for bonding a display panel and a flexible circuit board so as to improve the pull-out force between the display panel and the corresponding flexible circuit board.
In view of this, the present invention provides a display panel, a binding structure thereof and a display device, so as to solve the problem of small pulling force between the display panel and a corresponding flexible circuit board.
Fig. 1 is a schematic view illustrating a first member and a second member provided in an embodiment of the present application, fig. 2 is a perspective view illustrating a first binding part and a second binding part provided in an embodiment of the present application, fig. 3 is a cross-sectional view illustrating AA 'of fig. 2 provided in an embodiment of the present application, fig. 4 is another cross-sectional view illustrating AA' of fig. 2 provided in an embodiment of the present application, and referring to fig. 1 to 4, the present application provides a binding structure of a display panel including a first binding part 10 and a second binding part 20 respectively provided on a first member 01 and a second member 02 independent from each other, each of the first binding part 10 and the second binding part 20 including a plurality of binding pads 11 arranged in a first direction and extending in a second direction, the first direction crossing the second direction;
the binding structure further comprises at least one first positioning portion 21 and at least one second positioning portion 22 arranged corresponding to the first positioning portion 21, and along the first direction, the first positioning portion 21 is located between any two binding pads 11 arranged adjacently in the first binding portion 10, and the second positioning portion 22 is located between any two binding pads 11 arranged adjacently in the second binding portion 20;
the first binding portion 10 and the second binding portion 20 are pressed against each other, and the first positioning portion 21 and the second positioning portion 22, which are provided correspondingly, are engaged with each other.
Specifically, referring to fig. 1, the present application provides a binding structure of a display panel, which provides a first component 01 and a second component 02 that are independent from each other, the binding structure including a first binding portion 10 and a second binding portion 20, the first binding portion 10 being disposed on the first component 01, the second binding portion 20 being disposed on the second component 02; wherein, each of the first binding part 10 and the second binding part 20 includes therein a plurality of binding pads 11 arranged in a first direction and extending in a second direction, and the binding pads 11 in the first binding part 10 and the binding pads 11 in the second binding part 20 are provided in one-to-one correspondence.
It should be noted that the present application does not limit the number, size, etc. of the binding pads 11 on the first binding portion 10 or the second binding portion 20, and the user can adjust and control the binding pads according to the requirement. The first direction and the second direction provided by the present application are intersecting, and for example, the first direction may be perpendicular to the second direction.
The binding structure further includes a first positioning portion 21 and a second positioning portion 22, and the application provides an alternative embodiment that the first positioning portion 21 is disposed in the first binding portion 10, and the second positioning portion 22 is disposed in the second binding portion 20; the present application provides a manner of providing the first positioning portion 21 and the second positioning portion 22 by disposing the first positioning portion 21 between two binding pads 11 arbitrarily adjacently disposed in the first binding portion 10, and disposing the second positioning portion 22 between two binding pads 11 arbitrarily adjacently disposed in the second binding portion 20; the first positioning portion 21 and the second positioning portion 22 are provided correspondingly.
Referring to fig. 2-4 in addition to fig. 1, fig. 2 is a perspective view of the first and second binding portions 10 and 20 of fig. 1 after they have been crimped, fig. 3 is a cross-sectional view of the first and second binding portions 10 and 20 of fig. 2 in an aligned state but not yet crimped, and fig. 4 is a cross-sectional view of the first and second binding portions 10 and 20 of fig. 2 after they have been crimped; when the first binding portion 10 and the second binding portion 20 are pressure-bonded, the binding pads 11 in the first binding portion 10 and the binding pads 11 in the second binding portion 20 are in one-to-one correspondence contact, and the first positioning portion 21 provided in the first binding portion 10 and the second positioning portion 22 provided in the second binding portion 20 in correspondence thereto are engaged (as shown in fig. 2). That is, when the first member 01 and the second member 02 are press-fitted in alignment, the first positioning portions 21 located between the adjacent two binding pads 11 in the first binding portion 10, and the second positioning portions 22 between two adjacent binding pads 11 in the second binding portion 20 have an alignment relationship, and after the first positioning portions 21 and the second positioning portions 22 are engaged, the amount of force applied between the first binding portion 10 and the second binding portion 20 in a direction parallel to the light exit surface of the display panel can be increased in a direction parallel to the plane of the first binding portion 10 or the second binding portion 20, as shown in the specific embodiment of fig. 1-4, the bonding structure may be specifically configured to increase the force applied between the first bonding portion 10 and the second bonding portion 20 in the second direction, and reduce the risk of peeling between the first bonding portion 10 and the second bonding portion 20, thereby improving the yield of the display panel to which the bonding structure is applied; meanwhile, the area of the display panel binding area cannot be increased due to the design of the first positioning portion 21 and the second positioning portion 22, so that the narrow frame design of the display panel is ensured, the thickness of the display panel binding area cannot be increased, and the thin design of the display panel is ensured.
It should be added that fig. 1-4 of the present application show the engaging structure as corresponding convex and concave crimping, but the present application is not limited to the specific arrangement of the engaging structure, as long as the first positioning portion 21 and the second positioning portion 22 are arranged to achieve the engagement of the first binding portion 10 and the second binding portion 20.
Referring to fig. 5, another schematic diagram of the first component and the second component provided in the embodiment of the present application is shown, and referring to fig. 5, optionally, at least one dummy pad 23 is further included in each of the first binding portion 10 and the second binding portion 20, and the dummy pad 23 is reused as the first positioning portion 21, and/or the dummy pad 23 is reused as the second positioning portion 22.
Specifically, the first binding part 10 and the second binding part 20 provided by the present application each include a plurality of binding pads 11 therein, and in addition, each of the first binding part 10 and the second binding part 20 further includes at least one dummy pad 23 therein, that is, the first binding part 10 may further include a plurality of dummy pads 23 in addition to the conventionally provided binding pads 11, and the second binding part 20 may also include a plurality of dummy pads 23 in addition to the conventionally provided binding pads 11; based on this, the present application provides an alternative embodiment in which at least part of the dummy pads 23 included in the first binding portion 10 and the second binding portion 20 are multiplexed into the first positioning portion 21 and the corresponding second positioning portion 22; in other words, at least a part of the dummy pads 23 of the first binding part 10 may be manufactured as the first positioning part 21 described in the application, and the dummy pads 23 of the second binding part 20 corresponding to the first positioning part 21 may be manufactured as the second positioning part 22 described in the application.
This application is through multiplexing a plurality of virtual gaskets 23 that idle in first binding portion 10 and the second binding portion 20 for make into first location portion 21 and the second location portion 22 that have relative relation, first location portion 21 and the second location portion 22 here also can realize the block when first binding portion 10 and the crimping of second binding portion 20, thereby realize under the condition that does not increase display panel binding area and thickness, increase the atress size on being on a parallel with display panel play plain noodles direction between first binding portion 10 and the second binding portion 20, reduce the risk that takes place to peel off between first binding portion 10 and the second binding portion 20, and can improve the good productivity of the display panel that this binding structure was applied to simultaneously.
It should be added that the conventionally arranged bonding pad has the function of transmitting electrical signals, and the virtual pad is equivalent to an idle structure and is not used for transmitting electrical signals; therefore, this application makes it multiplexing to be first location portion and second location portion through carrying out patterning to the virtual liner of putting for realize that the block after first binding portion and the crimping of second binding portion neither can increase display panel and bind the district area, also can not increase the thickness that display panel bound the district, and can not increase the structure that display panel bound the district simultaneously.
Referring to fig. 1, fig. 2 and fig. 4, optionally, a conductive adhesive 30 is further included, and the conductive adhesive 30 is at least partially filled between the first positioning portion 21 and the second positioning portion 22.
Specifically, the binding structure further includes a Conductive adhesive 30, where the Conductive adhesive 30 is an Anisotropic Conductive Film (ACF), and the Conductive adhesive 30 is used to fill between the first binding portion 10 and the second binding portion 20, so as to increase the bonding stability of the first binding portion 10 and the second binding portion 20 after being pressed. As shown in fig. 4, the conductive adhesive 30 is at least partially filled between the first positioning portion 21 and the second positioning portion 22, so as to enhance the fastening firmness of the first positioning portion 21 and the second positioning portion 22, thereby reducing the risk of peeling between the first binding portion 10 and the second binding portion 20, and improving the yield of the display panel to which the binding structure is applied.
Referring to fig. 6, which is another schematic view of the first member and the second member provided in the embodiment of the present application, referring to fig. 6, optionally, at least one of the first positioning portions 21 includes at least two rows of first sub-positioning portions 211, and/or at least two columns of first sub-positioning portions 211.
Specifically, for example, a plurality of rows and a plurality of columns of the first sub-positioning portions 211 may be disposed in each first positioning portion 21, for example, as shown in fig. 6, the leftmost side of the first binding portion 10 includes the first positioning portion 21 formed by the first sub-positioning portions 211 disposed in two rows and three columns, and the middle right side includes the first positioning portion 21 formed by the first sub-positioning portions 211 disposed in four rows and three columns (each column of positioning portions arranged in the column direction is only the first sub-positioning portion 211 as shown in the figure); correspondingly, the leftmost side of the second binding portion 20 includes the second positioners 22 formed by the second sub-positioning portions 221 arranged in rows and three columns, and the middle right side includes the second positioners 22 formed by the second sub-positioning portions 221 arranged in four rows and three columns (each column of positioning portions arranged in the column direction is only shown as the second sub-positioning portion 221 in the figure).
It is an object of the above-mentioned embodiments to explain that the present application is not particularly limited to the detailed structural arrangement of the first positioning portion 21 and the second positioning portion 22, as long as the provided first positioning portion 21 and the second positioning portion 22 can function as a function of engaging the first positioning portion 21 with the second positioning portion 22 to fix the first binding portion 10 and the second binding portion 20 after the first binding portion 10 and the second binding portion 20 are crimped; the specific structural arrangement, position arrangement and the like of the first positioning portion 21 and the second positioning portion 22 can be adjusted by the user according to the needs.
Furthermore, fig. 6 shows an arrangement manner of the first positioning portion 21 formed by the first sub-positioning portion 211 arranged at the leftmost side of the first binding portion 10 in two rows and three columns, and the second positioning portion 22 formed by the second sub-positioning portion 221 arranged at the leftmost side of the corresponding second binding portion 20 in one row and three columns, that is, the second sub-positioning portion 221 arranged at one row is engaged with the first sub-positioning portion 211 arranged at two rows, so as to achieve the engagement between the first binding portion 10 and the second binding portion 20, thereby increasing the stress of the first binding portion 10 and the second binding portion 20 in a direction parallel to the light-emitting surface of the display panel, and reducing the risk of peeling between the first binding portion 10 and the second binding portion 20, thereby improving the yield of the display panel to which the binding structure is applied; meanwhile, the area of the display panel binding area cannot be increased due to the design of the first positioning portion 21 and the second positioning portion 22, so that the narrow frame design of the display panel is ensured, the thickness of the display panel binding area cannot be increased, and the thin design of the display panel is ensured.
Referring to fig. 1-2 and 5-6, alternatively, the first positioning portion 21 and the binding pad 11 of the first binding portion 10 are manufactured in the same production process; the second positioning part 22 and the binding pad 11 in the second binding part 20 are manufactured in the same production process.
Specifically, the manufacturing process and the used manufacturing material of the first positioning portion 21 and the second positioning portion 22 may be the same as the manufacturing process and the used manufacturing material of the binding pads 11 in the first binding portion 10 and the second binding portion 20; alternatively, the first positioning portion 21 and the binding pad 11 of the first binding portion 10 may be manufactured by the same process in the same production process, and the second positioning portion 22 and the binding pad 11 of the second binding portion 20 may be manufactured by the same process in the same production process.
By adopting the above manufacturing method, the production processes of the first positioning portion 21 and the second positioning portion 22 can be simplified, and the production time of the binding pads 11, the first positioning portion 21, and the second positioning portion 22 in the first binding portion 10 and the second binding portion 20 can be reduced, thereby being beneficial to improving the manufacturing efficiency of the whole display panel.
Fig. 7 is a schematic view of a first positioning portion and a second positioning portion provided in an embodiment of the present disclosure, fig. 8 is another schematic view of the first positioning portion and the second positioning portion provided in an embodiment of the present disclosure, fig. 9 is another schematic view of the first positioning portion and the second positioning portion provided in an embodiment of the present disclosure, please refer to fig. 3, 7-9, optionally, at least one first positioning portion 21 includes at least one first protruding portion 31 and a first recessed portion 32 at least partially surrounding the first protruding portion, and at least one second positioning portion 22 includes a second recessed portion 42 corresponding to the first protruding portion 31 and a second protruding portion 41 corresponding to the first recessed portion 32;
the first binding portion 10 and the second binding portion 20 are pressed against each other, the first projecting portion 31 engages with the second recessed portion 42, and the second projecting portion 41 engages with the first recessed portion 32.
Specifically, please refer to fig. 3, wherein the convex portion drawn in the first positioning portion 21 corresponds to the first convex portion 31, the blank area around the first convex portion 31 is the corresponding first concave portion 32, the convex portion drawn in the second positioning portion 22 corresponds to the second convex portion 41, and the blank area around the second convex portion 41 is the corresponding second concave portion 42; further referring to fig. 7-9, on the basis of the convex portions and the concave portions shown in fig. 3, the first positioning portion 21 may include a plurality of first convex portions 31 and first concave portions 32 at least partially surrounding the first convex portions 31, and the second positioning portion 22 may include second convex portions 41 and second concave portions 42 at least partially surrounding the second convex portions 41, wherein the first convex portions 31 and the second concave portions 42 are disposed in an aligned manner, and the first concave portions 32 and the second convex portions 41 are disposed in an aligned manner; when the first binding portion 10 and the second binding portion 20 are pressed, the first protrusion 31 is engaged with the second recess 42, and the second protrusion 41 is engaged with the first recess 32, so that the first binding portion 10 and the second binding portion 20 are fixed without increasing the area and thickness of the binding region of the display panel, and the risk of peeling between the first binding portion 10 and the second binding portion 20 is reduced, which is beneficial to improving the yield of the display panel to which the binding structure is applied.
It should be noted that the specific structure of the first positioning portion 21 and the second positioning portion 22 shown in fig. 7 is the specific structure of the concave portion and the convex portion shown in any one of fig. 1 to 6 of the present application, and fig. 8 and 9 respectively show other alternative embodiments of the concave portion and the convex portion in the first positioning portion 21 and the second positioning portion 22; however, the present application is not limited to the arrangement of the concave portions and the convex portions in the first positioning portion 21 and the second positioning portion 22 shown in fig. 7 to 9, as long as the first positioning portion 21 and the second positioning portion 22 can be engaged when the first binding portion 10 and the second binding portion 20 are crimped.
Referring to fig. 7 to 9 on the basis of fig. 1 to 6, optionally, at least one first positioning portion 21 includes at least two first protruding portions 31, and at least one second positioning portion 22 corresponding to the first positioning portion 21 includes at least one second protruding portion 41.
Specifically, as shown in fig. 6, along the second direction, two first protruding portions 31 are disposed in each row of the leftmost first positioning portion 21, a region between the two first protruding portions 31 is a first recessed portion 32, one second protruding portion 41 is disposed in the second positioning portion 22, an orthographic projection of the second protruding portion 41 on the light-emitting surface of the display panel is located in an orthographic projection of the first recessed portion 32 on the display panel, or an orthographic projection of the second protruding portion 41 on the light-emitting surface of the display panel and an orthographic projection of the first recessed portion 32 on the display panel are overlapped; when the first and second binding portions 10, 20 are crimped, the second projecting portion 41 snaps into the first recess 32, i.e., the second projecting portion 41 just snaps into the recessed area between the two first projecting portions 31. In this arrangement, the engagement between the first and second fastening portions 10 and 20 can be achieved by using the minimum number of patterns, which is beneficial to simplifying the design complexity of the first and second positioning portions 21 and 22, and also can reduce the material required for manufacturing the first and second positioning portions 21 and 22 to some extent; meanwhile, in a direction parallel to the plane where the first binding portion 10 or the second binding portion 20 is located, a tensile force that can be borne between the first binding portion 10 and the second binding portion 20 can be increased, a risk of peeling between the first binding portion 10 and the second binding portion 20 is reduced, and thus a yield of a display panel to which the binding structure is applied is improved.
Fig. 10 is a cross-sectional view of BB 'in fig. 2 according to an embodiment of the present application, and fig. 11 is another cross-sectional view of BB' in fig. 2 according to an embodiment of the present application, please refer to fig. 10 and 11 on the basis of fig. 2, alternatively, along the light emitting direction of the display panel, the sum of the thicknesses of the first protruding portion 31 and the correspondingly disposed second protruding portion 41 is greater than or equal to the sum of the thicknesses of the two binding pads 11 disposed opposite to each other in the first binding portion 10 and the second binding portion 20.
Specifically, fig. 10 is a schematic cross-sectional view of a kind of BB 'of fig. 2 in which the first and second binding portions 10 and 20 are in an alignment stage but not yet engaged, and fig. 11 is a schematic cross-sectional view of a kind of BB' of fig. 2 in which the first and second binding portions 10 and 20 are in an engaged state; in the light emitting direction of the display panel, when the thickness of each first protruding portion 31 in the first positioning portion 21 is the same and the thickness of each second protruding portion 41 in the second positioning portion 22 correspondingly disposed therewith is the same, the sum of the thicknesses of the first protruding portion 31 and the second protruding portion 41 in the first positioning portion 21 and the second positioning portion 22 correspondingly disposed may be D1; the sum of the thicknesses of each pair of two correspondingly disposed binding pads 11 in the first and second binding portions 10 and 20 is D2, an alternative embodiment is provided as D1 ≧ D2, so that electrical connection between the binding pads 11 can be achieved when the protrusions and recesses are engaged.
In addition, in the present application, the thicknesses of the first protruding portion 31 in the first positioning portion 21 and the second protruding portion 41 in the second positioning portion 22 may be made different, and on this basis, even the thickness of each first protruding portion 31 in the first positioning portion 21 may be made different, and the thickness of each first protruding portion 31 in the second positioning portion 22 may be made different, as long as the sum of the thicknesses of the first protruding portion 31 and the second protruding portion 41 in the correspondingly provided first positioning portion 21 and second positioning portion 22 is D1 or more, or the sum of the thicknesses of each pair of two binding pads 11 correspondingly provided in the first binding portion 10 and the second binding portion 20 is D2. The present application is not limited to the illustrated embodiment, and the user may adjust the specific details of the first positioning portion 21 and the second positioning portion 22 according to the requirement.
Referring to FIG. 1, alternatively, the length of the binding pad 11 on the first binding portion 10 along the second direction is H1, 200 μm ≦ H1 ≦ 800 μm. Alternatively, the length of the binding pad 11 on the second binding portion 20 in the second direction is H2, 200 μm ≦ H2 ≦ 800 μm.
Specifically, the present application provides an alternative embodiment in which the ranges of the lengths of the binding pads 11 provided on the first binding portion 10 and the binding pads 11 provided on the second binding portion 20 in the second direction are preferably 200 μm to 800 μm; it should be noted that, precisely because of the present application, the first positioning portion 21 and the second positioning portion 22 are used to increase the good ability of the first binding portion 10 and the second binding portion 20 to be engaged, so that the length of the binding pad 11 can be taken to a value as small as possible, i.e., 200 μm to 800 μm.
The proposed range of the lengths of the binding pads 11 on the first binding part 10 and the binding pads 11 on the second binding part 20 is only an alternative embodiment provided by the present application, and is not used to limit the lengths of the binding pads 11 on the first binding part 10 and the binding pads 11 on the second binding part 20, and the user can set the specific length of the binding pads 11 in the second direction according to the design requirement. For example, it is within the scope of the present application to set the length of the binding pads 11 in the first binding portion 10 and/or the second binding portion 20 in the range of 200 μm-400 μm, 300 μm-600 μm, 400 μm-700 μm, etc.
In addition, the present application also provides a manner in which the lengths of the binding pads 11 on the first binding part 10 and the binding pads 11 on the second binding part 20 are set in the second direction in such a manner that the length of the binding pads 11 on the second binding part 20 is equal to or greater than the length of the binding pads 11 on the first binding part 10, but the present application is not limited thereto.
Fig. 12 is a schematic view of a display panel according to an embodiment of the present application, please refer to fig. 12 on the basis of fig. 1, and optionally, the display panel 100 further includes a bonding area 40 and a flexible circuit board 50 connected to the bonding area 40;
the first binding portion 10 is located at the binding region 40, and the second binding portion 20 is located at the flexible circuit board 50.
Specifically, in practical design, the display panel 100 includes the flexible circuit board 50, the flexible circuit board 50 is electrically connected to the bonding area 40 in the display panel 100, for example, at least a portion of the lower frame of the display panel 100 may be selected as the bonding area 40, and the flexible circuit board 50 is connected to the bonding area 40; specifically, the first binding part 10 provided in the display panel 100 of the present application is located at the binding region 40, the second binding part 20 is located at the flexible circuit board 50, and the first binding part 10 and the second binding part 20 are crimped, that is, the flexible circuit board 50 in the display panel 100 is electrically connected to the binding region 40 thereof. Specifically, the first component 01 is a bonding area 40 of the display panel 100, and the second component 02 is a flexible circuit board 50.
Referring to fig. 5, optionally, a ratio of an orthographic projection area of the first positioning portion 21 on the light-emitting surface of the display panel 100 to an orthographic projection area of the first binding portion 10 on the light-emitting surface of the display panel 100 is greater than 14%; the ratio of the orthographic projection area of the second positioning portion 22 on the light-emitting surface of the display panel 100 to the orthographic projection area of the second binding portion 20 on the light-emitting surface of the display panel 100 is greater than 14%.
Specifically, in the prior art, the number of the dummy pads 23 in the flexible circuit board 50 is generally about 40, and occupies more than 13% of the total number of the bonding pads 11 and the dummy pads 23, when the dummy pads 23 are selected and manufactured as the second positioning portions 22 through special pattern setting in the display panel 100 of the present application, correspondingly, the ratio of the orthographic projection area of the second positioning portions 22 on the light-emitting surface of the display panel 100 to the orthographic projection area of the second bonding portions 20 on the light-emitting surface of the display panel 100 may be set to be greater than 14%; accordingly, the ratio of the orthographic projection area of the first positioning portion 21 on the light-emitting surface of the display panel 100 to the orthographic projection area of the first binding portion 10 on the light-emitting surface of the display panel 100 is greater than 14%.
Because the number of the dummy pads 23 in the display panel 100 is sufficient, when the dummy pads 23 are manufactured into the positioning portions through special pattern design, the first positioning portions 21 and the second positioning portions 22 can be engaged with each other, so that the stress between the first binding portions 10 and the second binding portions 20 in the direction parallel to the light emitting surface of the display panel 100 is increased without increasing the area and the thickness of the binding regions 40 of the display panel 100, the risk of peeling between the first binding portions 10 and the second binding portions 20 is reduced, and the yield of the display panel 100 to which the binding structure is applied can be improved.
Based on the same inventive concept, please refer to fig. 12, the present application further provides a display panel 100, where the display panel 100 includes the aforementioned binding structure of the display panel 100. The binding structure is any one of the binding structures provided in the present application. It should be noted that, for the embodiments of the binding structure provided in the embodiments of the present application, reference may be made to the above-mentioned embodiments of the binding structure of the display panel 100, and repeated descriptions are omitted.
Fig. 13 is a schematic view of a display device according to an embodiment of the disclosure, and referring to fig. 13, based on the same inventive concept, a display device 200 is further provided, in which the display device 200 includes a display panel 100. The display panel 100 is any one of the display panels 100 provided in the present application.
It should be noted that, for the embodiments of the display device 200 provided in the embodiments of the present application, reference may be made to the embodiments of the display panel 100, and repeated descriptions are omitted. The display device 200 provided by the present application may be: any product and component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a vehicle-mounted display screen, a navigator and the like.
By the embodiment, the display panel, the binding structure thereof and the display device provided by the invention at least realize the following beneficial effects:
the application provides a display panel, a binding structure thereof and a display device, wherein a first positioning part and a second positioning part which have corresponding relations are arranged in a first binding part and a second binding part which are arranged oppositely, the first positioning part is arranged in a gap space between binding gaskets included in the first binding part, and the second positioning part is arranged in a gap space between the binding gaskets included in the second binding part, so that when the first binding part and the second binding part are pressed, the first positioning part and the second positioning part which are arranged correspondingly are clamped; under the condition that the area and the thickness of a binding area of the display panel are not increased, the stress between the first binding part and the second binding part in the direction parallel to the light-emitting surface of the display panel is increased, the risk of peeling between the first binding part and the second binding part is reduced, and therefore the yield of the display panel to which the binding structure is applied is 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 (14)
1. A binding structure of a display panel, comprising a first binding part and a second binding part respectively on a first part and a second part independent from each other, each of the first binding part and the second binding part comprising a plurality of binding pads arranged in a first direction and extending in a second direction, the first direction intersecting the second direction;
the binding structure further comprises at least one first positioning portion and at least one second positioning portion arranged corresponding to the first positioning portion, the first positioning portion is located between any two adjacent binding pads in the first binding portion, and the second positioning portion is located between any two adjacent binding pads in the second binding portion along the first direction;
the first binding part and the second binding part are pressed and connected, and the first positioning part and the second positioning part which are correspondingly arranged are clamped.
2. The bonding structure of display panel according to claim 1, wherein each of the first bonding portion and the second bonding portion further comprises at least one dummy pad, and the dummy pad is multiplexed as the first positioning portion and/or the dummy pad is multiplexed as the second positioning portion.
3. The bonding structure of display panels according to claim 1 or 2, further comprising a conductive adhesive at least partially filled between the first positioning portion and the second positioning portion.
4. The binding structure of display panels according to claim 1 or 2, wherein at least one of the first positioning portions comprises at least two rows of first sub-positioning portions, and/or at least two columns of first sub-positioning portions.
5. The bonding structure of display panels according to claim 1 or 2, wherein the bonding pads in the first positioning portion and the first bonding portion are manufactured in the same production process; the binding pads in the second positioning portion and the second binding portion are manufactured in the same production process.
6. The binding structure of display panels according to claim 1 or 2, wherein at least one of the first positioning portions comprises at least one first convex portion and a first concave portion at least partially surrounding the first convex portion, and at least one of the second positioning portions comprises a second concave portion corresponding to the first convex portion and a second convex portion corresponding to the first concave portion;
the first binding portion and the second binding portion are in compression joint, the first protruding portion is clamped with the second concave portion, and the second protruding portion is clamped with the first concave portion.
7. The bonding structure of display panels according to claim 6, wherein at least one of the first positioning portions comprises at least two first protrusions, and at least one of the second positioning portions corresponding to the first positioning portions comprises at least one of the second protrusions.
8. The bonding structure of display panel according to claim 6, wherein a sum of thicknesses of the first protruding portion and the second protruding portion disposed correspondingly is greater than or equal to a sum of thicknesses of two bonding pads disposed correspondingly in the first bonding portion and the second bonding portion in a light emitting direction of the display panel.
9. The bonding structure of display panels according to claim 1, wherein the length of the bonding pad on the first bonding part is H1, 200 μm ≦ H1 ≦ 800 μm in the second direction.
10. The bonding structure of display panels according to claim 1, wherein the length of the bonding pad on the second bonding part is H2, 200 μm ≦ H2 ≦ 800 μm in the second direction.
11. The bonding structure of display panels according to claim 1, wherein the display panel further comprises a bonding region, a flexible circuit board connected to the bonding region;
the first binding portion is located in the binding region, and the second binding portion is located in the flexible circuit board.
12. The binding structure of a display panel according to claim 1 or 2, wherein a ratio of an area of a forward projection of the first positioning portion on the light exit surface of the display panel to an area of a forward projection of the first binding portion on the light exit surface of the display panel is greater than 14%; the ratio of the orthographic projection area of the second positioning part on the light-emitting surface of the display panel to the orthographic projection area of the second binding part on the light-emitting surface of the display panel is more than 14%.
13. A display panel comprising a binding structure according to any one of claims 1 to 12.
14. A display device characterized by comprising the display panel according to claim 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011579974.1A CN112599016A (en) | 2020-12-28 | 2020-12-28 | Display panel, binding structure thereof and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011579974.1A CN112599016A (en) | 2020-12-28 | 2020-12-28 | Display panel, binding structure thereof and display device |
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| CN112599016A true CN112599016A (en) | 2021-04-02 |
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| CN202011579974.1A Pending CN112599016A (en) | 2020-12-28 | 2020-12-28 | Display panel, binding structure thereof and display device |
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Application publication date: 20210402 |