CN217280777U - Display panel and display device - Google Patents

Abstract

The embodiment of the application provides a display panel and display device, display panel includes: a display device layer; a packaging layer; the first insulating layer is positioned on one side of the packaging layer, which is far away from the display device layer; and the touch metal part is positioned on one side of the first insulating layer, which deviates from the packaging layer, wherein a hollow part is arranged on the first insulating layer, and the orthographic projection of the hollow part and the orthographic projection of at least part of the touch metal part are arranged in a staggered manner along the thickness direction of the display panel. In the application, the hollow-out part is arranged on the first insulating layer, and the hollow-out part and the touch metal part are arranged in a staggered mode, so that the effect that the distance between the touch metal part and the display device layer is increased on the first insulating layer is not influenced by the arrangement of the hollow-out part, the flexibility of the first insulating layer can be improved by arranging the hollow-out part, the stress applied to the touch metal part is improved, the service life of the touch metal part is further prolonged, and the touch sensitivity is ensured.

Description

Display panel and display device

Technical Field

The application relates to the technical field of display equipment, in particular to a display panel and a display device.

Background

Organic Light-Emitting diodes (OLEDs) are active Light-Emitting devices. Compared with the traditional Liquid Crystal Display (LCD) Display mode, the OLED Display technology does not need a backlight lamp and has the self-luminous characteristic. The OLED adopts a thin organic material film layer and a glass substrate, and when a current flows, the organic material can emit light. Therefore, the OLED display panel can save electric energy remarkably, can be made lighter and thinner, can endure a wider range of temperature variation than the LCD display panel, and has a larger visual angle. The OLED display panel is expected to become a next-generation flat panel display technology following the LCD, and is one of the technologies that receives the most attention among the flat panel display technologies at present.

It is disclosed that a metal grid is used as a conductive material of a touch sensor and is fabricated on an encapsulation layer of an OLED display panel, so that a flexible touch display device is thinner. However, the electrode layer in the current touch sensor is close to the metal layer in the OLED display device, which easily generates parasitic capacitance, resulting in problems of touch insensitivity and the like.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a display panel and a display device, and aims to solve the problem of touch insensitivity in the display panel.

An embodiment of a first aspect of the present application provides a display panel, including: a display device layer; a packaging layer; the first insulating layer is positioned on one side, away from the display device layer, of the packaging layer; and the touch metal part is positioned on one side of the first insulating layer, which deviates from the packaging layer, wherein a hollow part is arranged on the first insulating layer, and the orthographic projection of the hollow part and the orthographic projection of at least part of the touch metal part are arranged in a staggered manner along the thickness direction of the display panel.

According to an embodiment of the first aspect of the present application, the display panel has a display area, a binding area, and a bending area located between the display area and the binding area, the touch metal portion and the first insulating layer are at least located in the display area and the bending area, and the hollow portion is disposed in the display area and/or the bending area.

According to any one of the embodiments of the first aspect of the present application, the touch metal portion includes a first touch metal layer and a second touch metal layer, and the display panel includes a second insulating layer disposed between the first touch metal layer and the second touch metal layer.

The first touch metal layer comprises first touch electrodes and first touch wires, the second touch metal layer comprises second touch electrodes and second touch wires, the first touch wires are connected to the corresponding first touch electrodes and extend to the binding areas through the bending areas, and the second touch wires are connected to the corresponding second touch electrodes and extend to the binding areas through the bending areas.

According to any one of the foregoing embodiments of the first aspect of the present application, the second touch metal layer is located on a side of the first touch metal layer away from the first insulating layer, the first touch trace includes a first connection end located in the bonding area and away from the first touch electrode, and the second touch trace includes a second connection end located in the bonding area and away from the second touch electrode;

the second touch metal layer further comprises a connecting block located in the binding area, the connecting block is insulated from the second touch electrode and the second touch wiring, a first opening is formed in the second insulating layer, and the connecting block is connected with the first connecting end through the first opening.

According to any preceding embodiment of the first aspect of the present application, further comprising: the protective layer is located the side that the touch metal portion deviates from the first insulating layer, and the protective layer is located display area, bending zone and binding area, and the protective layer is including being located a plurality of second openings in binding area to make each connecting block or each second link expose by each second opening.

According to any preceding embodiment of the first aspect of the present application, further comprising:

the binding blocks are positioned in the binding areas, the number of the binding blocks is multiple, and each binding block is respectively connected with each connecting block or the second connecting end in the binding area;

and the circuit board is connected to the binding block and bent to the non-display side of the display panel.

According to any one of the preceding embodiments of the first aspect of the present application, the thickness of the second insulating layer is 1.5 μm to 15 μm.

According to any of the embodiments of the first aspect of the present application, the dielectric constant of the first insulating layer is smaller than the dielectric constant of the encapsulation layer.

According to any of the preceding embodiments of the first aspect of the present application, the encapsulation layer comprises alternating organic and inorganic layers, and the first insulating layer has a dielectric constant that is less than the dielectric constant of any of the organic and/or inorganic layers.

According to any of the embodiments of the first aspect of the present application, the young's modulus of the first insulating layer is smaller than the young's modulus of the touch metal portion.

According to any of the embodiments of the first aspect of the present application, the young's modulus of the first insulating layer is smaller than the young's modulus of the first touch metal layer and/or the second touch metal layer.

Embodiments of the second aspect of the present application further provide a display device, including the display panel provided in any of the embodiments of the first aspect.

In the display panel provided by the embodiment of the application, the display panel comprises a display device layer, an encapsulation layer, a first insulating layer and a touch metal part which are sequentially stacked. The display device layer is used for emitting light to achieve display of the display panel, and the packaging layer is used for guaranteeing the sealing performance of the display device layer and prolonging the service life of the display panel. The first insulating layer is arranged between the packaging layer and the touch metal part, so that the distance between the touch metal part and the metal in the display device layer can be increased, the parasitic capacitance is further improved, the accuracy of touch signal transmission is improved, and the problem of touch insensitivity is solved. In addition, the first insulating layer is provided with the hollow parts, and the hollow parts and the touch metal parts are arranged in a staggered mode, so that the effect that the distance between the touch metal parts and the display device layer is increased by the first insulating layer is not influenced by the arrangement of the hollow parts, the flexibility of the first insulating layer can be improved by arranging the hollow parts, the stress applied to the touch metal parts is improved, the service life of the touch metal parts is further prolonged, and the touch sensitivity is ensured.

Drawings

Other features, objects, and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments, which proceeds with reference to the accompanying drawings, in which like or similar reference characters refer to the same or similar parts.

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;

FIG. 2 is a cross-sectional view at F-F of FIG. 1;

fig. 3 is a schematic structural diagram of a first touch metal layer of a touch metal portion of a display panel according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a second touch metal layer of a touch metal portion of a display panel according to an embodiment of the present disclosure;

fig. 5 is a schematic diagram illustrating relative positions of a first touch metal layer and a second touch metal layer in a touch metal portion of a display panel according to an embodiment of the present disclosure;

fig. 6 is a cross-sectional view at K-K in fig. 5.

Description of reference numerals:

10. a display panel;

100. a support plate;

200. a display device layer;

300. a packaging layer;

410. a first insulating layer; 411. a hollow-out section; 420. a second insulating layer;

500. a touch metal portion; 510. a first touch metal layer; 511. a first touch electrode; 512. a first touch trace; 512a, a first connection end; 520. a second touch metal layer; 521. a second touch electrode; 522. a second touch routing; 522a, a second connection end; 523. connecting blocks;

600. a protective layer;

700. binding blocks; 710. a circuit board;

800. a polarizer; 810. an optical adhesive layer;

900. a cover plate;

AA. A display area; WA, bending zone; BA. A binding region.

Detailed Description

Features of various aspects of the present application and exemplary embodiments will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof. In the drawings and the following description, at least some well-known structures and techniques have not been shown in detail in order to avoid unnecessarily obscuring the present application; also, the dimensions of some of the structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In the description of the present application, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicate an orientation or positional relationship that is merely for convenience in describing the application and to simplify the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the application. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The directional terms used in the following description are intended to refer to directions shown in the drawings, and are not intended to limit the specific structure of embodiments of the present application. In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected. The specific meaning of the above terms in the present application can be understood as appropriate by one of ordinary skill in the art.

For better understanding of the present application, the display panel and the display device according to the embodiments of the present application are described in detail below with reference to fig. 1 to 6.

Referring to fig. 1 and fig. 2 together, fig. 1 is a schematic structural diagram of a display panel 10 according to an embodiment of the present disclosure, and fig. 2 is a cross-sectional view at F-F in fig. 1.

As shown in fig. 1, the display panel 10 provided by the present application includes a display device layer 200, an encapsulation layer 300, a first insulating layer 410, and a touch metal portion 500, where the first insulating layer 410 is located on a side of the encapsulation layer 300 away from the display device layer 200, that is, the encapsulation layer 300 is located between the display device layer 200 and the first insulating layer 410. The touch metal portion 500 is located on a side of the first insulating layer 410 away from the package layer 300, wherein a hollow portion 411 is disposed on the first insulating layer 410, and an orthographic projection of the hollow portion 411 and an orthographic projection of at least a portion of the touch metal portion 500 are disposed in a staggered manner along a thickness direction of the display panel 10.

Optionally, the display device layer 200 includes a flexible substrate and a light emitting device on a side of the flexible substrate facing the encapsulation layer 300. When the display panel 10 is in the thickness direction, the orthographic projection of the hollow portion 411 and the orthographic projection of at least a part of the touch metal portion 500 are arranged in a staggered manner, that is, the orthographic projection of the hollow portion 411 on the flexible substrate and the orthographic projection of at least a part of the touch metal portion 500 on the flexible substrate are arranged in a staggered manner.

Optionally, the hollow portion 411 is formed by patterning the first insulating layer 410 when preparing the first insulating layer 410. For example, when preparing the first insulating layer 410, an insulating material may be coated on the display device layer 200 to form a complete insulating material layer, and then the insulating material layer is subjected to a patterning process to form a hollow portion 411 on the insulating material layer, so as to form the first insulating layer 410, such that the encapsulation layer 300 can be exposed from the hollow portion 411. Then, the touch metal part 500 is continuously formed on the first insulating layer 410. Fig. 2 only illustrates one position of the hollow portion 411, which is not limited to the setting position illustrated in fig. 2, as long as the orthographic projection of the hollow portion 411 and the orthographic projection of at least a part of the touch metal portion 500 are arranged in a staggered manner along the thickness direction.

Optionally, the touch metal part 500 may be a touch electrode or a touch trace.

In the display panel 10 provided in the embodiment of the present application, the display panel 10 includes a display device layer 200, an encapsulation layer 300, a first insulating layer 410, and a touch metal portion 500, which are sequentially stacked. The display device layer 200 is used for emitting light to realize display of the display panel 10, and the encapsulation layer 300 is used for ensuring the sealing performance of the display device layer 200 and improving the service life of the display panel 10. The first insulating layer 410 disposed between the package layer 300 and the touch metal portion 500 can increase the distance between the touch metal portion 500 and the metal in the display device layer 200, thereby improving the parasitic capacitance, improving the accuracy of touch signal transmission, and improving the touch insensitivity problem. The first insulating layer 410 is provided with the hollow portions 411, and the hollow portions 411 and the touch metal portion 500 are arranged in a staggered manner, so that the effect that the distance between the touch metal portion 500 and the display device layer 200 is increased by the first insulating layer 410 is not affected by the arrangement of the hollow portions 411, the flexibility of the first insulating layer 410 can be improved by arranging the hollow portions 411, stress applied to the touch metal portion 500 is improved, the service life of the touch metal portion 500 is further prolonged, and touch sensitivity is guaranteed.

In addition, when the display panel 10 is a foldable display panel 10 or a foldable display panel 10, the hollow portion 411 is disposed on the first insulating layer 410 to improve the bending performance of the first insulating layer 410, improve the stress applied to the touch metal portion 500 when the display panel 10 is bent, further improve the service life of the touch metal portion 500, and ensure the touch sensitivity.

Optionally, the display panel 10 further includes a support plate 100, and the support plate 100 is located on a side of the display device layer 200 facing away from the encapsulation layer 300.

The support plate 100 may be disposed in various ways, and optionally, the support plate 100 includes a support film, a buffer layer, and an optical adhesive layer.

The display device layer 200 may be disposed in various ways, and optionally, the display device layer 200 further includes an array layer disposed on the flexible substrate and used for controlling the operation of the light emitting device, where the array layer includes a thin film transistor, a metal wire, and the like. The light emitting device includes sub-pixels to emit different colors; the display device layer 200 further includes a pixel electrode facing the array layer, a pixel definition layer located on a side of the pixel electrode facing away from the array layer, and a common electrode located on the pixel definition layer facing away from the array layer. The pixel definition layer comprises a pixel opening, and corresponding sub-pixels are arranged in the pixel opening.

The common electrode is usually a full-surface electrode, which causes the touch metal layer of the touch metal part 500 to inevitably overlap with the common electrode, resulting in a parasitic capacitance between the touch metal part 500 and the common electrode. In the display panel 10 provided in the present application, by additionally providing the first insulating layer 410, the first insulating layer 410 can increase the distance between the common electrode and the touch metal portion 500, so as to reduce the parasitic capacitance, improve the accuracy of touch signal transmission, and improve the touch insensitivity.

The encapsulation layer 300 may be disposed in various ways, for example, the encapsulation layer 300 may be a thin film encapsulation, and the encapsulation layer 300 includes organic layers and inorganic layers alternately disposed. For example, the encapsulation layer 300 includes a first inorganic layer, a first organic layer on a side of the first inorganic layer facing away from the display device layer 200, and a second inorganic layer on a side of the first organic layer facing away from the display device layer 200. The first inorganic layer and the second inorganic layer can be formed by deposition in a chemical vapor deposition mode, and the first organic layer can be prepared and molded in an ink-jet printing mode.

The first insulating layer 410 may be disposed in various ways, and optionally, the dielectric constant of the first insulating layer 410 is smaller than the dielectric constant of the package layer 300. Optionally, when the encapsulation layer 300 includes a plurality of organic layers and inorganic layers alternately stacked, the first insulating layer 410 is smaller than a dielectric constant of any one of the organic layers and/or the inorganic layers in the encapsulation layer 300.

In these optional embodiments, the dielectric constant of the first insulating layer 410 is smaller, so that the parasitic capacitance between the touch metal portion 500 and the common electrode can be further reduced, and the touch sensitivity can be improved. Optionally, the power saving constant of the first insulating layer 410 may be 1.9 to 3.5.

Optionally, the light transmittance of the first insulating layer 410 is greater than or equal to 90% to improve the light emitting effect of the light emitting unit and improve the display effect of the display panel 10.

Optionally, the thickness of the first insulating layer 400 is 1 μm to 50 μm. When the thickness of the first insulating layer 400 is within the above range, it is possible to avoid that the touch sensitivity is affected by an excessively large parasitic capacitance due to an excessively small thickness of the first insulating layer 400; the overall thickness of the display panel 10 can be prevented from being too large due to the too large thickness of the first insulating layer 400, and the light extraction effect of the display device layer 200 can be prevented from being affected by the too large thickness of the first insulating layer 400.

The material of the first insulating layer 410 is selected from a plurality of materials, and optionally, the material of the first insulating layer 410 may be formed by stacking one or more of a polyimide film, a polyester film, an organic-inorganic laminated film, and the like. For example, the first insulating layer 410 is a polyimide film, so that the first insulating layer 410 has a low dielectric constant and a low young's modulus, and is easily patterned to form the hollow portion 411. In addition, the polyimide film has stable chemical bonds, and can improve the problem of metal residue during patterning of the metal layer.

In some optional embodiments, please continue to refer to fig. 1 and 2, the display panel 10 has a display area AA, a bonding area BA, and a bending area WZ located between the display area AA and the bonding area BA, the touch metal portion 500 and the first insulating layer 410 are at least located in the display area AA and the bending area WZ, and the hollow portion 411 is disposed in the display area AA and/or the bending area WZ.

In these alternative embodiments, the first insulating layer 410 located in the bending region WZ can provide support for the touch metal part 500 located in the bending region WZ. When the hollow portion 411 is disposed on the first insulating layer 410 in the bending area WZ, the structural strength of the first insulating layer 410 in the bending area WZ can be improved, so that the first insulating layer 410 in the bending area WZ has good flexibility.

Optionally, the touch metal part 500 and the first insulating layer 410 may also be located in the bonding area BA, and the hollow part 411 may be disposed in the bonding area BA.

Referring to fig. 1 to 5, fig. 3 is a schematic structural diagram of a first touch metal layer 510 of a touch metal portion 500 of a display panel 10 according to an embodiment of the present disclosure, fig. 4 is a schematic structural diagram of a second touch metal layer 520 of the touch metal portion 500 of the display panel 10 according to the embodiment of the present disclosure, and fig. 5 is a schematic relative position diagram of the first touch metal layer 510 and the second touch metal layer 520 of the touch metal portion 500 of the display panel 10 according to the embodiment of the present disclosure.

In some optional embodiments, as shown in fig. 1 to 5, the touch metal part 500 includes a first touch metal layer 510 and a second touch metal layer 520; the display panel 10 further includes a second insulating layer 420 disposed between the first touch metal layer 510 and the second touch metal layer 520. Specifically, the touch metal part 500 includes a first touch electrode 511 and a first touch trace 512 formed on the first touch metal layer 510, and a second touch electrode 521 and a second touch trace 522 formed on the second touch metal layer 520, that is, the first touch metal layer 510 includes the first touch electrode 511 and the first touch trace 512, and the second touch metal layer 520 includes the second touch electrode 521 and the second touch trace 522.

Optionally, the first touch electrode 511 is located in the display area AA, and the first touch trace 512 is connected to the first touch electrode 511 and extends from the bending area WZ to the binding area BA. Optionally, the second touch electrode 521 is located in the display area AA, and the second touch trace 522 is connected to the second touch electrode 521 and extends from the bending area WZ to the binding area BA.

In these optional embodiments, by disposing the first touch metal layer 510, the second touch metal layer 520, and the second insulating layer 420 located between the first touch metal layer 510 and the second touch metal layer 520, the second insulating layer 420 may not have a via hole in the display area AA, so as to improve the problem that the first touch electrode 511 and the second touch electrode 521 are connected by the via hole and are prone to wire breakage.

Optionally, the young modulus of the first insulating layer 410 is smaller than the young modulus of the touch metal part 500. Optionally, when the touch metal part 500 includes the first touch metal layer 510 and the second touch metal layer 520, the young's modulus of the first insulating layer 410 is smaller than the young's modulus of the first touch metal layer 510 and/or the second touch metal layer 520. The first insulating layer 410 has good bending performance, so that the service life of the touch metal part 500 is further prolonged, and the touch sensitivity is ensured. Optionally, when the first insulating layer 410 is provided with the hollow portion 411, and the orthographic projection of the hollow portion 411 and the orthographic projection of at least a portion of the touch metal portion 500 are arranged in a staggered manner along the thickness direction, the orthographic projection of the hollow portion 411 may be arranged in a staggered manner with the orthographic projection of at least one of the first touch electrode 511, the first touch trace 512, the second touch electrode 521 and the second touch trace 522. As shown in fig. 5, a dotted line in fig. 5 indicates a setting position of the hollow portion 411, and an orthographic projection of the hollow portion 411 is disposed in a staggered manner with the first touch electrode 511, the first touch trace 512, the second touch electrode 521, and the second touch trace 522, so as to better improve a bending performance of the first insulating layer 410 and stress on the first touch electrode 511, the first touch trace 512, the second touch electrode 521, and the second touch trace 522.

Optionally, as shown in fig. 3, the first touch electrodes 511 extend along the first direction Y, and the plurality of first touch electrodes 511 are arranged side by side at intervals along the second direction X. Optionally, the first touch traces 512 may be connected to one end of the first touch electrode 511 in the first direction Y, or two first touch traces 512 are respectively connected to two ends of the first touch electrode 511 in the first direction Y. When the two ends of the first touch electrode 511 in the first direction Y are both connected with the first touch trace 512, the resistance of the first touch trace 512 and the first touch electrode 511 when electrically connected can be reduced, and the timeliness of signal transmission can be improved.

Optionally, as shown in fig. 4, the second touch electrode 521 is formed to extend along the second direction X, and the plurality of second touch electrodes 521 are arranged side by side along the first direction Y. Optionally, the second touch trace 522 may be connected to one end of the second touch electrode 521 in the second direction X, or two second touch traces 522 are respectively connected to two ends of the second touch electrode 521 in the second direction X. When the two ends of the second touch electrode 521 in the second direction X are both connected with the second touch trace 522, the resistance of the second touch trace 522 when electrically connected with the second touch electrode 521 can be reduced, and the timeliness of signal transmission can be improved.

The second insulating layer 420 may be disposed in various ways, and optionally, the thickness of the second insulating layer 420 is 1.5 μm to 15 μm. The thickness of the second insulating layer 420 is relatively thick, so that the parasitic capacitance between the first touch electrode 511 and the second touch electrode 521 can be improved, and the touch sensitivity can be further improved. The material of the second insulating layer 420 is, for example, an organic insulating material, so that the second insulating layer 420 has good bending performance.

Optionally, in the manufacturing process of the display panel 10, after the first insulating layer 410 with the hollow portion 411 is manufactured, the first touch metal layer 510 may be continuously manufactured, and patterning processing is performed on the first touch metal layer 510 to form the first touch electrode 511 and the first touch trace 512, at this time, no filling material is still present in the hollow portion 411, and then, when the second insulating layer 420 is continuously manufactured, the material of the second insulating layer 420 may fall between the hollow portion 411 and the adjacent first touch electrode 511, that is, the hollow portion 411 is filled with the material of the second insulating layer 420.

In other optional embodiments, after the first insulating layer 410 with the hollow portion 411 is prepared, the first touch metal layer 510 may be continuously prepared, the first touch metal layer 510 is patterned to form the first touch electrode 511 and the first touch trace 512, at this time, the metal material used for preparing the first touch metal layer 510 is filled in the hollow portion 411, and the metal material in the hollow portion 411 and the first touch metal layer 510 are arranged in an insulated manner, and then the second insulating layer 420 and the second touch metal layer 520 are continuously prepared.

In some optional embodiments, the second touch metal layer 520 is located on a side of the first touch metal layer 510 away from the first insulating layer 410, the first touch trace 512 includes a first connection end 512a located in the bonding area BA, and the second touch trace 522 includes a second connection end 522a located in the bonding area BA. The first touch trace 512 is electrically connected to the outside through the first connection end 512a, and the second touch trace 522 is electrically connected to the outside through the second connection end 522 a.

The inventor finds that, after the first touch trace 512 is prepared, the second insulating layer 420 and the second touch metal layer 520 are further prepared on the first touch trace 512, and patterning processing needs to be performed on the second insulating layer 420 and the second touch metal layer 520 to expose the first connection end 512a, so that when patterning processing is performed on the second insulating layer 420 and the second touch metal layer 520, the first connection end 512a may be etched, and the first connection end 512a is over-etched, which affects stability of electrical connection between the first connection end 512a and the outside.

Referring to fig. 5 and 6 together, fig. 6 is a cross-sectional view taken at K-K of fig. 5.

In some optional embodiments, as shown in fig. 5 and fig. 6, the second touch metal layer 520 further includes a connection block 523 located in the bonding area BA, the connection block 523 is insulated from the second touch electrode 521 and the second touch trace 522, the second insulating layer 420 is provided with a first opening, and the connection block 523 is connected to the first connection end 512a through the first opening.

In these optional embodiments, the connection block 523 is disposed on the second touch metal layer 520, the connection block 523 can supplement a part of the first connection end 512a that is etched by mistake, and the first connection end 512a is electrically connected to the outside through the connection block 523, so that stability of electrical connection between the first connection end 512a and the outside can be ensured. The connecting block 523, the second touch trace 522 and the second touch electrode 521 are disposed on the same layer, and in the manufacturing process of the display panel 10, the connecting block 523, the second touch trace 522 and the second touch electrode 521 can be manufactured and molded in the same process step, so that the manufacturing process of the display panel 10 can be simplified, and the manufacturing efficiency of the display panel 10 can be improved. The connection block 523 is insulated from the second touch trace 522 and the second touch trace 522, and can also prevent the first touch trace 512 and the second touch trace 522 from being connected in a short circuit.

In some alternative embodiments, with continuing reference to fig. 1 and 2, the display panel 10 further includes: the protection layer 600 is located on a side of the touch metal part 500 away from the first insulating layer 410, the protection layer 600 is located in the display area AA, the bending area WZ and the binding area BA, and the protection layer 600 includes a plurality of second openings located in the binding area BA, so that each connection block 523 or each second connection end 522a is exposed from each second opening.

In these alternative embodiments, the protection layer 600 can provide protection for the touch metal part 500. The protection layer 600 is located in the display area AA, the bending area WZ, and the binding area BA, so that the protection layer 600 can provide protection to the second touch metal layer 520 in the display area AA, the bending area WZ, and the binding area BA. The protection layer 600 is provided with a second opening, so that the protection layer 600 does not affect the electrical connection between the second touch metal layer 520, the first touch metal layer 510 and the outside.

Optionally, the material of the protection layer 600 is an organic material, so that the protection layer 600 has good flexibility. The stress of the second touch metal layer 520 in the bending area WZ can be reduced.

Optionally, the display panel 10 further includes a polarizer 800, an optical adhesive layer 810 and a cover plate 900 sequentially disposed on one side of the protection layer 600 away from the touch metal part 500.

In some alternative embodiments, with continuing reference to fig. 1 and 2, the display panel 10 further includes: a plurality of binding blocks 700 located in the binding area BA, wherein each binding block 700 is connected to each connection block 523 or the second connection end 522a in the binding area BA; and a circuit board 710 connected to the bonding block 700 and bent to the non-display side of the display panel 10.

In these optional embodiments, the second touch trace 522 is connected to the bonding block 700 at the bonding area BA through the second connection end 522a, and the first connection end 512a of the first touch trace 512 is connected to the bonding block 700 at the bonding area BA through the connection block 523. So that the second touch trace 522 and the first touch trace 512 can be electrically connected with the circuit board 710 through the bonding block 700. The circuit board 710 is bent to the non-display side of the display panel 10, so that the size of the non-display area AA of the display panel 10 can be reduced, and the display effect of the display panel 10 can be improved.

Optionally, a chip is further connected to an end of the circuit board 710 facing away from the binding block 700, so that the chip can transmit signals with the touch metal part 500 through the circuit board 710.

Embodiments of the second aspect of the present invention further provide a display device, including the display panel of any one of the embodiments of the first aspect. Since the display device provided in the embodiment of the second aspect of the present invention includes the display panel 10 in any embodiment of the first aspect, the display device provided in the embodiment of the second aspect of the present invention has the beneficial effects of the display panel 10 in any embodiment of the first aspect, and details are not repeated herein.

The display device in the embodiment of the present invention includes, but is not limited to, a mobile phone, a Personal Digital Assistant (PDA), a tablet computer, an electronic book, a television, a door lock, a smart phone, a console, and other devices having a display function.

While the application has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the application. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims (12)

1. A display panel, comprising:

a display device layer;

a packaging layer;

the first insulating layer is positioned on one side, away from the display device layer, of the packaging layer;

the touch metal part is arranged on one side, away from the packaging layer, of the first insulating layer, a hollow part is arranged on the first insulating layer, and the orthographic projection of the hollow part and at least part of the orthographic projection of the touch metal part are arranged in a staggered mode along the thickness direction of the display panel.

2. The display panel according to claim 1, wherein the display panel has a display area, a binding area and a bending area between the display area and the binding area, and the hollow portion is disposed in the display area and/or the bending area.

3. The display panel according to claim 2, wherein the touch metal portion comprises a first touch metal layer and a second touch metal layer, the display panel comprises a second insulating layer disposed between the first touch metal layer and the second touch metal layer,

the first touch metal layer comprises a first touch electrode and a first touch wire, the second touch metal layer comprises a second touch electrode and a second touch wire, the first touch wire is connected to the corresponding first touch electrode and extends to the binding area through the bending area, and the second touch wire is connected to the corresponding second touch electrode and extends to the binding area through the bending area.

4. The display panel according to claim 3, wherein the second touch metal layer is located on a side of the first touch metal layer facing away from the first insulating layer, the first touch trace includes a first connection end located in the bonding area, and the second touch trace includes a second connection end located in the bonding area;

the second touch metal layer further comprises a connecting block located in the binding area, the connecting block and the second touch wiring are insulated from each other, a first opening is formed in the second insulating layer, and the connecting block is connected with the first connecting end through the first opening.

5. The display panel according to claim 4, further comprising: the protective layer is located on one side, away from the first insulating layer, of the touch metal portion, the protective layer is located in the display area, the bending area and the binding area, the protective layer is provided with a plurality of second openings located in the binding area, and the second openings are respectively arranged corresponding to the connecting blocks and the second connecting ends, so that the connecting blocks and the second connecting ends are exposed outwards through the corresponding second openings.

6. The display panel according to claim 4, further comprising:

the binding blocks are positioned in the binding areas, the number of the binding blocks is multiple, and each binding block is respectively connected with each connecting block or the second connecting end in the binding areas;

a circuit board connected to the binding block.

7. The display panel according to claim 3, wherein the second insulating layer has a thickness of 1.5 to 15 μm.

8. The display panel according to claim 3, wherein the Young's modulus of the first insulating layer is smaller than the Young's modulus of the touch metal portion.

9. The display panel according to claim 8, wherein the young's modulus of the first insulating layer is smaller than the young's modulus of the first touch metal layer and/or the second touch metal layer.

10. The display panel according to claim 1,

the dielectric constant of the first insulating layer is smaller than that of the packaging layer.

11. The display panel according to claim 10, wherein the encapsulation layer comprises organic layers and inorganic layers alternately arranged, and the first insulating layer has a dielectric constant smaller than that of any one of the organic layers and/or the inorganic layers.

12. A display device characterized by comprising the display panel according to any one of claims 1 to 11.

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