CN219202673U - Display panel and display device - Google Patents

Abstract

The disclosure provides a display panel and a display device, and belongs to the field of display devices. The display panel is provided with a main body area (11) and a first binding area (121), wherein a notch (11 a) is formed by inwards concave edges of the main body area (11), and the first binding area (121) is positioned in the notch (11 a) and is connected with the edges of the main body area (11).

Description

Display panel and display device

Technical Field

The present disclosure relates to the field of display devices, and in particular, to a display panel and a display device.

Background

With the continuous development of display technology, the frame of the display device is narrower and narrower, and the screen occupation ratio is higher and higher.

In the current display device, a binding area is arranged at the edge of the display panel, and the binding area can be bent to the back of the display panel for fixing so as to improve the screen occupation ratio. After bending, if the binding area is observed vertically from the front of the display panel, the binding area is found to protrude to the outer side of the display panel, which is not beneficial to the subsequent processing of the display panel, and also can have a certain adverse effect on the screen occupation ratio of the display device.

Disclosure of Invention

The embodiment of the disclosure provides a display panel and a display device, which can reduce the protruding distance of a binding area to the outer side of the display panel. The technical scheme is as follows:

in a first aspect, embodiments of the present disclosure provide a display panel having a body region with an edge recessed to form a gap, and a first binding region located in the gap and connected to the edge of the body region.

Optionally, the width of the notch gradually decreases in a direction in which the edge of the body region is concave.

Optionally, the notch is trapezoidal.

Optionally, the first binding area is connected to the upper base of the trapezoid.

Optionally, the display panel has a plurality of first binding areas, the edge of the main body area has a plurality of notches, and the plurality of first binding areas are respectively located in the plurality of notches.

Optionally, the display panel includes a panel body and a back film, one side of the panel body is connected to the back film, one side of the back film away from the panel body has a groove, the groove extends along an edge of the body region, and the groove is at least partially located in the first binding region.

Optionally, the display panel further has a region to be cut, the region to be cut surrounds the main body region and the first binding region and is connected with edges of the main body region and the first binding region;

the groove extends to the region to be resected, and a gap is arranged between the groove and the edge of the main body region.

Optionally, the recess has a first side wall adjacent the body region and a second side wall opposite the first side wall, the first side wall extending along an edge of the body region adjacent a side of the recess.

Optionally, the width of the groove is the same throughout the groove in the length direction of the groove.

Optionally, at least one end of the groove is located in the notch.

Optionally, the back film is provided with a plurality of grooves, and the grooves are arranged in one-to-one correspondence with the plurality of first binding areas; alternatively, at least one of the grooves is located in a plurality of the first binding regions.

Optionally, the first binding areas are respectively distributed on two opposite sides of the main body area.

Optionally, the panel main body is provided with an alignment mark, and the alignment mark is located in the region to be cut;

the alignment mark is positioned in the groove; or alternatively, the process may be performed,

the back film is also provided with an alignment groove, the alignment groove is positioned in the region to be cut, and the alignment mark is positioned in the alignment groove.

Optionally, the display panel further has a second binding area, and the second binding area is located outside the notch and connected to an edge of the main body area.

Optionally, the second binding area and the first binding area are located at two opposite sides of the main body area.

In a second aspect, embodiments of the present disclosure further provide a display device including any one of the display panels according to the first aspect.

The technical scheme provided by the embodiment of the disclosure has the beneficial effects that at least:

by arranging the notch at the edge of the main body region, the first binding region is arranged in the notch, so that the first binding region moves a distance in the direction of the edge of the main body region. After the first binding area is bent, the protruding distance of the edge of the first binding area relative to the main body area outside the notch is reduced, and even the protruding distance can be reduced to be flush with the edge of the main body area outside the notch, so that the influence of the protruding of the first binding area on the subsequent processing of the display panel is avoided, and the screen occupation ratio of the display device is also increased.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic view of a partial structure of a display device according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of a display panel according to an embodiment of the present disclosure;

fig. 3 is a schematic view of a partial structure of a display panel according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;

FIG. 5 is a side view of a display panel provided by an embodiment of the present disclosure;

FIG. 6 is a cross-sectional view of a display panel provided by an embodiment of the present disclosure;

FIG. 7 is a partial schematic view of a display panel according to an embodiment of the present disclosure;

fig. 8 is a schematic view of a partial structure of a display panel according to an embodiment of the present disclosure;

fig. 9 is a schematic partial structure of a display panel according to an embodiment of the present disclosure;

fig. 10 is a schematic view of a partial structure of a display panel according to an embodiment of the present disclosure;

fig. 11 is a schematic view of a partial structure of a display panel according to an embodiment of the present disclosure;

fig. 12 is a schematic view of a partial structure of a display panel according to an embodiment of the present disclosure;

fig. 13 is a schematic structural view of a display panel according to an embodiment of the present disclosure;

fig. 14 is a schematic structural view of a display panel according to an embodiment of the present disclosure;

fig. 15 is a schematic view of a partial structure of a display panel according to an embodiment of the present disclosure;

fig. 16 is a schematic view of a partial structure of a display panel according to an embodiment of the present disclosure;

fig. 17 is a schematic view of a partial structure of a display panel according to an embodiment of the present disclosure;

fig. 18 is a schematic structural view of a display panel according to an embodiment of the present disclosure;

fig. 19 is a flowchart of a method for manufacturing a display panel according to an embodiment of the disclosure.

Detailed Description

For the purposes of clarity, technical solutions and advantages of the present disclosure, the following further details the embodiments of the present disclosure with reference to the accompanying drawings.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," "third," and the like in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to denote relative positional relationships, which may also change accordingly when the absolute position of the object to be described changes.

Fig. 1 is a schematic partial structure of a display device according to an embodiment of the present disclosure. The display device may be, but is not limited to, a cell phone, tablet computer, smart watch, etc. In the embodiment of the disclosure, a mobile phone is taken as an example for illustration. As shown in fig. 1, the display device includes a display panel 1 and a shielding structure 2. The display panel has a body region 11 and a binding region 12, and the binding region 12 is connected to one side edge of the body region 11. The binding area 12 is folded to the back of the display panel 1.

In the embodiment of the disclosure, the front side of the display panel refers to the side of the display panel used for displaying, and the back side is the opposite side to the front side. The shielding structure 2 may be any structure capable of shielding light, for example, a frame. In the display device having the cover plate provided on the front surface of the display panel, the shielding structure 2 may be a structure in which the edge of the cover plate is opaque, for example, a light shielding layer provided on the edge of the cover plate.

Fig. 2 is a schematic diagram of a display panel according to an embodiment of the disclosure. As shown in fig. 2, the display panel 1 may be further divided into a display area 13 and a non-display area 14 located outside the display area 13 according to whether or not a user performs screen display. In the disclosed embodiment, the body region 11 includes a portion of the display region 13 and the non-display region 14, and this portion of the non-display region 14 is adjacent to the display region 13. Binding area 12 includes another portion of non-display area 14. The shielding structure 2 is used for shielding the non-display area 14 of the display panel 1. As can be seen from fig. 1 and 2, after the binding region 12 is folded, the binding region 12 is protruded outward with respect to the edge of the body region 11. The binding area 12 has a minimum bending radius, and if the bending radius of the binding area 12 is smaller than the minimum bending radius, the binding area 12 has a high risk of damage, so the bending radius of the binding area 12 is generally greater than or equal to the minimum bending radius, and the greater the bending radius of the binding area 12, the greater the distance the binding area 12 protrudes outward relative to the edge of the body area 11.

On the side of the body region 11 near the binding region 12, the shielding structure 2 shields the portion of the binding region 12 protruding from the edge of the body region 11 in addition to shielding the non-display region 14 in the body region 11, which increases the shielding range of the shielding structure 2 and affects the screen ratio of the display panel. When the display device falls, the portion of the binding area 12 protruding outward may also squeeze with a structure (e.g., a middle frame) such as a housing of the display device, resulting in an increase in stress inside the binding area 12 and an increase in risk of damage.

In the production process of the display device, after the binding area 12 is bent to the back of the display panel 1, the binding area 12 protrudes outwards, which is not only unsightly, but also may have a certain adverse effect in the transportation and subsequent processing of the display panel 1. Such as a portion protruding outward, coming into contact with other objects may also increase the stress inside the binding region 12, causing damage to the binding region 12.

Fig. 3 is a schematic partial structure of a display panel according to an embodiment of the disclosure. As shown in fig. 3, the display panel has a body region 11 and a first binding region 121. The edge of the body region 11 is concaved inward to form a notch 11a, the first binding region 121 is located in the notch 11a, and the first binding region 121 is connected to the edge of the body region 11.

In this example, by providing the notch 11a at the edge of the body region 11, the first binding region 121 is disposed in the notch 11a such that the first binding region 121 is moved a distance corresponding to a direction of being recessed toward the edge of the body region 11. After the first binding area 121 is bent, the protruding distance of the first binding area 121 relative to the edge of the main body area 11 outside the notch 11a is reduced, and even the protruding distance can be reduced to be flush with the edge of the main body area 11 outside the notch, so that the influence of the protruding of the first binding area 121 on the subsequent processing of the display panel 1 is avoided, and the screen occupation ratio of the display device is also increased.

As shown in fig. 3, the notch 11a is located in the non-display area 14, i.e., the edge of the body area 11 is recessed to a depth that does not reach the display area 13. The edges of the display area 13, i.e. the boundary between the display area 13 and the non-display area 14, are not recessed into the display area 13, which is to maintain the original shape of the display area 13, and the drawings are provided only for illustration, and are not meant to represent actual dimensions or shapes, and the depth of the recess in the edges of the main body area 11 may be selected according to specific needs.

As shown in fig. 3, the width of the notch 11a gradually decreases in the direction in which the edge of the body region 11 is concave. The position of the gap 11a where the width d is greatest is marked in fig. 3.

The edges of the body region 11 may comprise at least one edge, either straight or curved. For example, the body region 11 is rectangular, and the edges of the body region 11 include 4 straight edges. The notch 11a is located on one straight side of the body region 11, and the width of the notch 11a may be a width in a direction parallel to the one straight side of the body region 11. At the notch 11a series of straight lines are drawn parallel to each other, which lines are parallel to the straight edge of the body region 11, in particular to the portion of the straight edge of the body region 11 lying outside the notch 11a. Two points of intersection exist between each straight line and the concave portion of the straight edge of the main body region 11, so that a series of mutually parallel line segments are obtained, and the lengths of the line segments are the widths of the gaps 11a. For example, in a display panel used in a display device such as a smart watch, the main body region 11 is circular, and the edge of the main body region 11 is curved. The notch 11a is located on the curved edge of the body region 11. The width of the notch 11a may be a width in the circumferential direction. The circle center of the curved edge is used as the circle center, a series of concentric circles are drawn, and two intersection points exist between the circles and the concave part of the curved edge, so that a series of circular arcs are obtained, and the lengths of the circular arcs are the width of the notch 11a.

The gradual decrease in the width of the notch 11a in the direction of the inward concavity of the edge of the body region 11 is advantageous in reducing stress at the portion of the edge of the body region 11 located in the notch 11a, avoiding stress concentration. Taking a possible implementation of the present disclosure as an example, the notch 11a is rectangular, that is, the portion of the edge of the main body area 11 located in the notch 11a forms two right angles, where there may be a larger stress, especially after the first binding area 121 is bent, the stress at the right angle may be further increased, and the risk of cracking the display panel 1 at this location increases.

As shown in fig. 3, the notch 11a is trapezoidal, that is, the portion of the edge of the main body area 11 located in the notch 11a is bent to form two obtuse angles, so that the stress can be reduced, and the edge of the main body area 11 is straight, so that the processing is easier, and the manufacturing of the display panel is facilitated.

Illustratively, the obtuse angle α between the waist and the upper base of the trapezoid is 155 ° to 165 °. The obtuse angle between the trapezoid waist and the upper bottom is larger, so that the stress at the joint of the waist and the upper bottom is reduced.

In some examples, the connection between the upper base and the waist of the trapezoid may also be rounded, i.e. provided with rounded corners, in order to further reduce stress in the display panel.

As shown in fig. 3, the first binding area 121 is connected to the upper base of the trapezoid. The distance between the upper base of the trapezoid and the lower base of the trapezoid is the depth of the notch 11a and also the depth of the edge recess of the body region 11.

The portion of the edge of the body region 11 located in the notch 11a includes three sections corresponding to the upper base and the two waists of the trapezoid, respectively, connected to the upper base of the trapezoid, that is, connected to one of the three sections corresponding to the upper base of the trapezoid. The length of one side of the first binding region 121 connected with the main body region 11 may be smaller than or equal to the length of the upper bottom of the trapezoid, so that a certain gap is formed between the first binding region 121 and two waists of the trapezoid, and when the first binding region 121 is bent, the stress in the display panel can be increased by pulling the two waists of the trapezoid.

Fig. 4 is a schematic structural diagram of a display panel according to an embodiment of the disclosure. As shown in fig. 4, the display panel has a plurality of first binding areas 121, the edge of the main body area 11 has a plurality of notches 11a, and the plurality of first binding areas 121 are respectively located in the plurality of notches 11a.

For display panels with smaller areas, a binding area is usually arranged to meet the normal use of the display panel. For larger area display panels, the circuit structure in the display panel is more complex, and needs to extend to the binding area, and more wires are connected with other external structures (such as a flexible circuit board, etc.), including, but not limited to, power lines, touch signal lines, data lines, and gate signal lines. For example, in a flexible multi-layer covered surface (Flexible Multi Layer On Cell, abbreviated as FMLOC) display panel, a touch structure is fabricated on the outer side of a film packaging layer of the display panel, and a touch signal line of the touch structure needs to be led out to a binding area and connected with a flexible circuit board.

If all the wires are extended to the same binding area, not only is the wiring difficulty increased, but also the wires in the main body area 11 at a position far away from the binding area need to be set long to extend to the binding area, so that the resistance of the wires is increased, and the transmission of electric signals is not facilitated. Capacitors are also formed between the traces and other portions of the circuit structure, which can adversely affect the electrical signals and thus the performance of the display panel. For example, to affect touch operations. In this example, by setting a plurality of first binding areas 121, the wires in the display panel can be extended into the first binding areas 121 nearby, so that the length of the wires is reduced, and various adverse effects caused by overlong wires are avoided.

The plurality of first binding regions 121 may be distributed on the same side of the body region 11 or may be distributed on different sides of the body region 11. For example, the first binding areas 121 are respectively distributed on opposite sides of the body area 11. The display panel is generally easier to bend along a bending line in a specific direction, and is not easy to bend along a bending line perpendicular to the direction. By utilizing this characteristic, the first binding regions 121 are disposed on opposite sides of the body region 11, so that not only a sufficient number of the first binding regions 121 can be disposed by making full use of space, but also all of the bending lines of the first binding regions 121 can be made parallel and disposed in the specific direction, facilitating bending of the first binding regions 121.

Fig. 5 is a side view of a display panel provided by an embodiment of the present disclosure. As shown in fig. 5, the display panel includes a panel main body 101 and a back film 102. One side of the panel body 101 is connected to the back film 102. Illustratively, backing film 102 is bonded to back plate 1011. The back film 102 serves to provide protection and support to the panel body 101. The back film 102 may be made of a flexible material, such as a thermoplastic resin, specifically polyethylene terephthalate, polyurethane, or the like. The thickness of the backing film 102 may be 10 μm to 50 μm, for example 13 μm.

The back film 102 has a groove 102a on a side away from the panel main body 101. The groove 102a extends along an edge of the body region 11, and the groove 102a is located at least partially within the first binding region 121.

Fig. 6 is a cross-sectional view of a display panel provided in an embodiment of the present disclosure, in which the first bonding area 121 of the display panel has not been bent. As shown in fig. 6, the panel body 101 includes a back plate 1011, and a circuit structure and a light emitting layer 1012 on one side of the back plate 1011, the light emitting layer 1012 being connected to the circuit structure to emit light under the drive of the circuit structure. The light emitting layer 1012 may be entirely located at the body region 11, or may be mainly located at the body region 11 with an edge portion located at the first binding region 121. The back plate 1011 may be a flexible back plate, for example, made of polyimide PI, and the thickness of the back plate 1011 may be 50 μm to 100 μm, for example, 75 μm.

The light emitting layer 1012 may include a plurality of light emitting units, which may be, for example, organic light emitting diodes OLED. A protective film 1013 may be further provided on the light emitting layer 1012 during the manufacturing process of the display panel to provide protection for the light emitting layer 1012. After the completion of the production, the protective film 1013 is removed. The backing film 102 is positioned on the other side of the back plate 1011.

By providing the groove 102a on the side of the back film 102 away from the panel main body 101, the structural strength of the back film 102 is reduced, so that the back film 102 is more easily bent at the groove 102a. The groove 102a is at least partially disposed within the first binding region 121, which may facilitate bending of the first binding region 121.

As shown in fig. 5, the depth of the groove 102a may be less than the thickness of the backing film 102. In other examples, the depth of the groove 102a may also be the same as the thickness of the backing film 102, i.e., the backing film 102 is penetrated in thickness by the groove 102a.

The binding region typically includes a inflection region and a lead region that are connected. For example, fig. 7 is a partial schematic view of a display panel provided in an embodiment of the disclosure, where the first binding area 121 in fig. 7 has not been bent yet. As shown in fig. 7, the first binding region 121 includes a inflection region 1211 and a lead region 1212, the inflection region 1211 is connected to the body region 11, and the lead region 1212 is located at a side of the inflection region 1211 remote from the body region 11 and is connected to the inflection region 1211. The bending region 1211 is easily deformed to be bent. The pin area 1212 is provided with a plurality of pins connected to signal lines extending to the first bonding area 121, the pins being for connection to other structures, such as a circuit board, etc. In some examples, a lead region may be further included, the lead region being connected between the body region 11 and the inflection region 1211, and the leads in the display panel converging to the lead region and then extending to the lead region 1212 to be connected to the leads.

The circuit structure, the light emitting layer 1012, and the like in the panel main body 101 include a plurality of film layers, and the various film layers are formed layer by layer on the back plate 1011 by a plurality of processes. In order to facilitate bending of the display panel, during manufacturing of the panel body 101, a portion of the film layer may be removed at the bending region 1211, generally by etching or other process means, so that the thickness of the panel body 101 at the bending region 1211 is smaller than that at other positions, for example, at least smaller than that of the display region 13. The orthographic projection of the groove 102a of the backing film 102 at the inflection region 1211 may be located within the inflection region 1211, with the width of the groove 102a being less than or equal to the width of the inflection region 1211. For example, the width of groove 102a is at least 0.15mm less than the width of inflection zone 1211. The outline of groove 102a is shown in phantom in fig. 7, with the orthographic projection of groove 102a at inflection region 1211 being located within inflection region 1211, the width of groove 102a being less than the width of inflection region 1211.

Fig. 8 is a schematic partial structure of a display panel according to an embodiment of the disclosure. As shown in fig. 8, the display panel also has a region to be cut 13. The region to be cut 13 surrounds the body region 11 and the first binding region 121, and the region to be cut 13 is connected to edges of the body region 11 and the first binding region 121. The boundary between the region to be excised 13 and the body region 11, and the boundary between the region to be excised 13 and the first binding region 121 are shown in black triangles in fig. 8.

In the processing of the display panel, the region to be cut 13 is finally cut, that is, the display panel shown in fig. 8 is equivalent to a display panel which has not been processed yet, and after the region to be cut 13 of the display panel is cut, the structure can refer to fig. 7. The area of the panel body 101 is typically slightly smaller than the back film 102 prior to cutting, although in some examples, the two may completely overlap prior to cutting, i.e., the area of the panel body 101 is the same as the area of the back film 102.

As shown in fig. 8, in the display panel, the groove 102a on the back film 102 extends to the region 13 to be cut, and a gap is provided between the groove 102a and the edge of the main body region 11.

The boundary between the region to be cut 13 and the main body region 11, and the boundary between the region to be cut 13 and the first binding region 121 are cut lines when cutting the display panel. The groove 102a is disposed entirely outside the body region 11 with a gap between the groove 102a and the edge of the body region 11 so that the groove 102a is not cut into when cutting is performed along the boundary between the region 13 to be cut and the body region 11. In the groove 102a and outside the groove 102a, the thickness of the display panel is different, the stress distribution is also different, and the difficulty of cutting is also different, so that if the boundary between the region to be cut 13 and the main body region 11 is cut during cutting, not only the cutting accuracy is affected, but also a certain risk is caused that the film layers of the display panel are peeled off from each other, for example, the back film 102 and the panel main body 101 are peeled off from each other.

As shown in fig. 8, in the boundary between the region to be cut 13 and the first binding region 121, the boundary passing through the groove 102a is perpendicular to the extending direction of the groove 102a. There must be a boundary between the region to be cut 13 and the first binding region 121 that passes through the groove 102a, where the groove refers to the intersection of the groove 102a with the orthographic projection on the surface of the back film 102. By making the cutting line perpendicular to the extending direction of the groove 102a thereat, the risk of peeling off each other between the film layers of the display panel when cutting along the boundary between the region to be cut 13 and the first bonding region 121 can be reduced.

As shown in fig. 8, the groove 102a has a first sidewall 1021 and a second sidewall 1022. Wherein the first sidewall 1021 is close to the body region 11, and the second sidewall 1022 is opposite to the first sidewall 1021. The first sidewall 1021 extends along an edge of the body region 11 on a side near the groove 102a.

By extending the first sidewall 1021 along the edge of the body region 11, the groove 102a is prevented from entering the body region 11 so as to overlap the dicing line.

The width of the gap between the groove 102a and the edge of the body region 11 is the distance between the first sidewall 1021 and the edge of the body region 11 on the side close to the groove 102a. The width of the gap may be constant, i.e. the width of the gap is the same at different positions.

As shown in fig. 8, in some examples, the second side wall 1022 of the recess 102a may be parallel to a portion of the edge of the body region 11 that is outside of the notch 11a. The groove 102a extends from the notch 11a to a section outside the notch 11a, and the width is gradually changed.

Fig. 9 is a schematic view of a partial structure of a display panel according to an embodiment of the disclosure, as shown in fig. 9, in other examples, the second side wall 1022 of the groove 102a also extends along the edge of the main body 11, and the width of the groove 102a is the same throughout the length of the groove 102a. Because the widths are the same, the width of the groove 102a can be better monitored when the groove 102a is formed on the back film 102, and the manufacturing is more convenient.

In the example shown in fig. 8 and 9, both ends of the groove 102a extend outside the notch 11a. Both ends of the groove 102a may even extend to the edge of the back film 102. In other examples, at least one end of groove 102a is located in notch 11a. I.e. the recess 102a has one or both ends which do not extend beyond the gap 11a. For example, the display panel shown in fig. 10 and 11, one end of the groove 102a extends to the edge of the back film 102, and the other end is located in the notch 11a.

Fig. 12 is a schematic partial structure of a display panel according to an embodiment of the present disclosure. As shown in fig. 12, in this example, the length of the groove 102a is smaller than the width of the notch 11a, and both ends of the groove 102a are located in the notch 11a. Since the portion of the groove 102a extending to the region 13 to be cut is cut off at the time of cutting the display panel, it is also possible to provide only the groove 102a in the notch 11a. Both ends of the recess 102a are located in the notch 11a, which means that at least both ends of the first sidewall 1021 of the recess 102a are located in the notch 11a. For the second side wall 1022 of the recess 102a, whether or not in the notch 11a, or outside the notch 11a, is dependent on the relationship between the depth of the edge indent of the body region 11 and the spacing between the first side wall 1021 and the edge of the body region 11, if the depth of the edge indent of the body region 11 is smaller than the spacing between the first side wall 1021 and the edge of the body region 11, the first side wall 1021 is located outside the notch 11a, or vice versa.

Optionally, the length of the recess 102a is less than the length of the upper base of the trapezoid. This eliminates the need for providing the recess 102a with a shaped configuration as shown in fig. 10 or 10 to avoid overlapping the recess 102a with the edge of the body region 11, and is more convenient to manufacture.

As shown in fig. 12, the end of the groove 102a is located outside the inflection region 1211 of the first binding region 121, for example, at least 0.5mm beyond the edge of the inflection region 1211. This is to ensure that both ends of the groove 102a in the first binding region 121 are open, penetrating the first binding region 121, after cutting is completed.

Fig. 13 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure. As shown in fig. 13, in the display panel, the back film 102 has a plurality of grooves 102a, and the plurality of grooves 102a are arranged in one-to-one correspondence with the plurality of first binding regions 121. The grooves 102a are arranged in a one-to-one correspondence manner, so that the width of each groove 102a can be set according to the specific condition of each first binding region 121, for example, the width of the bending region 1211 of the first binding region 121, and the design is more flexible.

When a plurality of grooves 102a are provided, the plurality of grooves 102a may be distributed on the same side of the body region 11 or may be distributed on opposite sides of the body region 11. Furthermore, two or more grooves 102a may be distributed on the same side of the body region 11.

Fig. 14 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure. As shown in fig. 14, at least one groove 102a is located in a plurality of first binding areas 121. That is, two or more first binding regions 121 are distributed at one side of the body region 11, and the same groove 102a extends into the two or more first binding regions 121 at the one side of the body region 11. In this way, only one groove 102a is required to be formed on one side of the body region 11 corresponding to the plurality of first binding regions 121 during processing, which is more convenient to manufacture. Also, when a plurality of first binding regions 121 are disposed at one side of the body region 11, the width of each first binding region 121 may be designed to be smaller, for example, the widths of two first binding regions 121 located at the upper side of the body region 11 in fig. 14 are each smaller than the width of the first binding region 121 located at the lower side of the body region 11. The first binding region 121 having a smaller width is also easier to bend and less stressed.

Fig. 15 is a schematic partial structure of a display panel according to an embodiment of the present disclosure. As shown in fig. 15, the panel body 101 has alignment marks 1014, and the alignment marks 1014 are located in the region 13 to be cut. Alignment mark 1014 is located in groove 102a.

In the panel main body 101, a positioning mark 1014 is generally disposed near the edge, and when cutting is performed, the positioning mark 1014 can facilitate positioning of the cutting device, and improve the cutting accuracy. The alignment mark 1014 is located in the region 13 to be cut off, so that the display panel is cut off after the cutting is completed.

Although the back film 102 may be provided transparent, the back film 102 has a certain thickness, and also has a certain influence on the positioning accuracy due to refraction or the like. By aligning the groove 102a with the alignment mark 1014, the alignment mark can be observed from the groove 102a, which is convenient for capturing by optical devices such as cameras, and improves positioning accuracy.

Fig. 16 is a schematic view of a partial structure of a display panel according to an embodiment of the present disclosure. As shown in fig. 16, the back film 102 further has an alignment groove 102b, the alignment groove 102b is located in the to-be-cut-out region 13, and the alignment mark 1014 is located in the alignment groove 102 b.

The location where the alignment marks 1014 are disposed may be different for different panel bodies 101, such that the alignment marks 1014 may not be located in the grooves 102a. The position of the alignment groove 102b may be designed according to the position of the alignment mark 1014, so that the alignment mark 1014 may be exposed through the alignment groove 102b, thereby improving the positioning accuracy. The alignment groove 102b may be located at an edge of the backing film 102, such as shown in fig. 16, and in other examples, the alignment groove 102b may also have a gap from the edge of the backing film 102, such as shown in fig. 17.

Fig. 18 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure. As shown in fig. 18, the display panel further has a second binding area 122, the second binding area 122 is located outside the notch 11a, and the second binding area 122 is connected to an edge of the main body area 11. That is, when the display panel has a plurality of binding regions, each binding region may be disposed in the notch 11a, or only a portion of the binding regions may be disposed in the notch 11a, so as to meet the process requirements of different display panels.

As shown in fig. 18, the second binding area 122 is located at opposite sides of the body area 11 from the first binding area 121.

The first binding region 121 and the second binding region 122 are disposed on both sides, respectively, so that it is only necessary to dispose the notch 11a on one side of the body region 11.

In particular, for some binding regions having a larger width, such as the second binding region 122 shown in fig. 18, the width of the second binding region 122 is almost the same as the length of the edge of the body region 11 near the second binding region 122, and the second binding region 122 bends almost the entire edge of the display panel when bending, and for such binding regions, the notch 11a may not be provided.

The embodiment of the disclosure also provides a display device, which comprises any one of the display panels shown in fig. 3-18. The display device may be, but is not limited to, a cell phone, tablet computer, smart watch, etc. The display device can have a larger screen ratio due to the adoption of the aforementioned display panel.

Fig. 19 is a flowchart of a method for manufacturing a display panel according to an embodiment of the disclosure. This method is used to manufacture any of the display panels shown in fig. 3 to 18. As shown in fig. 19, the manufacturing method includes:

in step S11, a display panel to be cut is provided.

The display panel includes a body region 11, a first binding region 121, and a region to be cut 13. Wherein the first binding region 121 is connected to the edge of the body region 11, the region to be cut 13 surrounds the body region 11 and the first binding region 121, and the region to be cut 13 is connected to the edges of the body region 11 and the first binding region 121.

In step S12, the region to be resected 13 is resected, a concave notch 11a is formed at the edge of the body region 11, and the first binding region 121 is located in the notch 11a.

Illustratively, when the region to be resected 13 is resected, laser cutting, cutter cutting, or the like may be performed.

By cutting off the region to be cut 13 during the cutting process, a notch 11a is formed at the edge of the body region 11, and the first binding region 121 is disposed in the notch 11a such that the first binding region 121 is moved a distance corresponding to a direction concave toward the edge of the body region 11. After the first binding area 121 is bent, the protruding distance of the first binding area 121 relative to the edge of the main body area 11 outside the notch 11a is reduced, and even the protruding distance can be reduced to be flush with the edge of the main body area 11 outside the notch, so that the influence of the protruding of the first binding area 121 on the subsequent processing of the display panel 1 is avoided, and the screen occupation ratio of the display device is also increased.

A groove 102a may also be formed in the side of the back film 102 remote from the panel body 101 before cutting is performed. The groove 102a extends along the edge of the body region 11, and the groove 102a is located at least in the first binding region 121, with a gap between the groove 102a and the edge of the body region 11.

For details of groove 102a, reference is made to the description of groove 102a above, and details are not provided herein.

The foregoing description of the preferred embodiments of the present disclosure is provided for the purpose of illustration only, and is not intended to limit the disclosure to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, alternatives, and alternatives falling within the spirit and principles of the disclosure.

Claims (16)

1. The display panel is characterized by comprising a main body area (11) and a first binding area (121), wherein a notch (11 a) is formed by inward concave edges of the main body area (11), and the first binding area (121) is positioned in the notch (11 a) and is connected with the edges of the main body area (11).

2. A display panel according to claim 1, characterized in that the width of the gap (11 a) decreases gradually in the direction of the edge recess of the body region (11).

3. A display panel according to claim 2, characterized in that the indentations (11 a) are trapezoidal.

4. A display panel according to claim 3, characterized in that the first binding area (121) is connected to the upper base of the trapezoid.

5. The display panel according to any one of claims 1 to 4, wherein the display panel has a plurality of the first binding regions (121), the edge of the main body region (11) has a plurality of the notches (11 a), and the plurality of the first binding regions (121) are respectively located in the plurality of the notches (11 a).

6. The display panel according to claim 5, characterized in that the display panel comprises a panel body (101) and a back film (102), a face of the panel body (101) being connected to the back film (102), a face of the back film (102) remote from the panel body (101) having a groove (102 a), the groove (102 a) extending along an edge of the body region (11), and the groove (102 a) being at least partially located within the first binding region (121).

7. The display panel according to claim 6, characterized in that the display panel further has a region (13) to be cut out, the region (13) to be cut out surrounding the body region (11) and the first binding region (121) and being connected to edges of the body region (11) and the first binding region (121);

the groove (102 a) extends to the region (13) to be resected, a gap being provided between the groove (102 a) and the edge of the body region (11).

8. The display panel according to claim 7, wherein the recess (102 a) has a first sidewall (1021) adjacent to the body region (11) and a second sidewall (1022) opposite to the first sidewall (1021), the first sidewall (1021) extending along an edge of a side of the body region (11) adjacent to the recess (102 a).

9. The display panel according to claim 7, wherein the width of the groove (102 a) is the same throughout the groove (102 a) in the length direction of the groove (102 a).

10. A display panel according to any one of claims 7-9, characterized in that the recess (102 a) has at least one end located in the indentation (11 a).

11. The display panel according to any one of claims 7 to 9, wherein the back film (102) has a plurality of the grooves (102 a), the plurality of grooves (102 a) being arranged in one-to-one correspondence with the plurality of the first binding regions (121); alternatively, at least one of the grooves (102 a) is located in a plurality of the first binding areas (121).

12. The display panel according to claim 11, wherein the first binding regions (121) are distributed on opposite sides of the body region (11).

13. The display panel according to any one of claims 7 to 9, wherein the panel body (101) has an alignment mark (1014) thereon, the alignment mark (1014) being located in the region (13) to be cut off;

the alignment mark (1014) is positioned in the groove (102 a); or alternatively, the process may be performed,

the back film (102) is also provided with an alignment groove (102 b), the alignment groove (102 b) is positioned in the region (13) to be cut, and the alignment mark (1014) is positioned in the alignment groove (102 b).

14. A display panel according to any one of claims 1-4, characterized in that the display panel further has a second binding area (122), which second binding area (122) is located outside the gap (11 a) and is connected to the edge of the body area (11).

15. The display panel according to claim 14, wherein the second binding area (122) is located on opposite sides of the body area (11) from the first binding area (121).

16. A display device comprising the display panel according to any one of claims 1 to 15.

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