DISPLAY PANEL AND DISPLAY DEVICE

A display panel and a display device. The display panel includes a display layer and a touch layer. A touch electrode in the touch layer includes metal frames. An orthographic projection of the metal frame on the display panel is located at a periphery of an orthographic projection of a pixel opening on the display panel. The metal frame includes a first metal frame. Light-emitting elements are configured to emit light with a first color. The first metal frame includes a first bar and a second bar in a first direction. A fracture is located between adjacent touch electrodes and includes a first fracture. One first fracture is located in the first bar of a first metal frame, and another first fracture is located in the first bar or the second bar of another first metal frame. The first direction is parallel to the display panel.

This application claims priority to Chinese Patent Application No. 202311350934.3, titled “DISPLAY PANEL AND DISPLAY DEVICE”, filed on Oct. 18, 2023 with the China National Intellectual Property Administration, which is incorporated herein by reference in its entirety.

FIELD

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

BACKGROUND

As an input medium, the touch screen is currently the most simple, convenient and apparent human-computer interaction means. With the development of the display technology, increasing display panels are integrated with a touch function.

Touch screen technology refers to a technology in which when a finger, a pen, and the like touches a touch screen installed in the front of a display device, a touched position (in a form of coordinates) is detected and transmitted to a CPU, so as to determine inputted information. At present, the touch screens are widely applied in various products including mobile terminals and touch-screen mobile phones and laptops, human-computer display interfaces for industrial automation, and the like.

In order to achieve the touch function of the display device, a touch electrode is usually introduced into the display device. In a case that the touch electrode is implemented as a metal frame, there is a common problem of horizontal lines at a large viewing angle, which affects a display effect at a large viewing angle.

SUMMARY

In view of the above, a display panel and a display device are provided according to the present disclosure. The problem of horizontal lines at a large viewing angle can be solved, to improve the display effect.

One embodiment provides a display panel according to the present disclosure. The display panel comprises a display layer, and a touch layer arranged on a side of the display layer, where the display layer comprises multiple pixel openings and light-emitting elements corresponding to the multiple pixel openings, the multiple pixel openings comprises multiple first pixel openings, and light-emitting elements corresponding to the multiple first pixel openings are configured to emit light with a first color; the touch layer comprises multiple touch electrodes that are insulated from each other, the multiple touch electrodes comprises multiple metal frames that are electrically connected to form a grid and an orthographic projection of each metal frame of the multiple metal frames on a plane where the display panel is located is located at a periphery of an orthographic projection of each pixel opening of the multiple pixel openings on the plane where the display panel is located; the multiple metal frames comprises first metal frames, an orthographic projection of each first metal frame of the first metal frames on the plane where the display panel is located is located at the periphery of an orthographic projection of a respective first pixel opening of the multiple first pixel openings on the plane where the display panel is located, and each first metal frame comprises a first bar and a second bar that are opposite to each other in a first direction; and one or more fractures are located between at least a pair of adjacent touch electrodes among the multiple touch electrodes, the one or more fractures comprise first fractures, at least one of the first fractures is located in the first bar of a first metal frame of the first metal frames, and another at least one of the first fractures is located in the first bar or the second bar of another first metal frame of the first metal frames, where the first direction is parallel to the plane where the display panel is located.

Some embodiments provide a display device according to the present disclosure. The display device comprises the display panel. The display panel comprises a display layer, and a touch layer arranged on a side of the display layer, where the display layer comprises multiple pixel openings and light-emitting elements corresponding to the multiple pixel openings, the multiple pixel openings comprises multiple first pixel openings, and light-emitting elements corresponding to the multiple first pixel openings are configured to emit light with a first color; the touch layer comprises multiple touch electrodes that are insulated from each other, the multiple touch electrodes comprises multiple metal frames that are electrically connected to form a grid and an orthographic projection of each metal frame of the multiple metal frames on a plane where the display panel is located is located at a periphery of an orthographic projection of each pixel opening of the multiple pixel openings on the plane where the display panel is located; the multiple metal frames comprises first metal frames, an orthographic projection of each first metal frame of the first metal frames on the plane where the display panel is located is located at the periphery of an orthographic projection of a respective first pixel opening of the multiple first pixel openings on the plane where the display panel is located, and each first metal frame comprises a first bar and a second bar that are opposite to each other in a first direction; and one or more fractures are located between at least a pair of adjacent touch electrodes among the multiple touch electrodes, the one or more fractures comprise first fractures, at least one of the first fractures is located in the first bar of a first metal frame of the first metal frames, and another at least one of the first fractures is located in the first bar or the second bar of another first metal frame of the first metal frames, where the first direction is parallel to the plane where the display panel is located.

Embodiments of the present disclosure become apparent from the detailed description of the exemplary embodiments of the present disclosure with reference to the drawings.

DETAILED DESCRIPTION OF EMBODIMENTS

Hereinafter, exemplary embodiments of the present disclosure are described in detail with reference to the drawings. It should be noted that the relative arrangement of the components and steps, numerical expressions and numerical values set forth in the embodiments are not intended to limit the scope of the present disclosure unless otherwise specially stated.

The description of at least one of the exemplary embodiments is only illustrative rather than a limitation to the present disclosure and application or usage thereof.

Techniques, methods and apparatus known may not be discussed in detail, but where appropriate, the techniques, methods and apparatus should be considered as a part of the specification.

In all of the examples shown and discussed herein, any specific values are to be construed as illustrative only and not as a limitation. Thus, different values may be applied in other examples of the exemplary embodiments.

Various modifications and variations to the present disclosure without departing from the embodiments of the present disclosure. Therefore, the present disclosure is intended to cover modifications and variations of the present disclosure, which fall within the scope of the claims (the claimed embodiments) and their equivalents. It should be noted that the implementations provided in the embodiments of the present disclosure may be combined with each other as long as there is no conflict.

It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in a Figure, it is not required to be further discussed in the subsequent Figures.

FIG.1is a top view of a display panel according to an embodiment of the present disclosure.FIG.2is a cross section view ofFIG.1in a direction indicated by AA.FIG.3is a schematic diagram showing an arrangement of touch electrodes21in a touch layer20.FIG.4is a schematic diagram showing a planar structure of a touch electrode according to an embodiment of the present disclosure.FIG.5is a schematic diagram showing a relative position relationship between pixel openings and metal frames of the touch electrodes21according to an embodiment of the present disclosure.FIG.6is a schematic diagram showing that adjacent regions of adjacent first touch electrode and second touch electrode are insulated from each other by fractures.FIG.7is a schematic diagram showing an enlarged view of the pixel openings and the metal frames of the touch electrodes21. Referring toFIG.1toFIG.7, the display panel according to the embodiments of the present disclosure comprises a display layer10, and a touch layer20arranged on a side of the display layer10.

The display layer10comprises multiple pixel openings K and light-emitting elements30corresponding to the pixel openings K. The pixel openings K comprise multiple first pixel openings K1, and light-emitting colors of light-emitting elements30corresponding to the first pixel openings K1are all a first color.

The touch layer20comprises multiple touch electrodes21that are insulated from each other. The touch electrodes21comprise multiple metal frames that are electrically connected. An orthographic projection of the metal frame on a plane where the display panel is located is at a periphery of an orthographic projection of the pixel opening on the display panel.

The metal frame comprises a first metal frame WG1. An orthographic projection of the first metal frame WG1on the display panel corresponds to an orthographic projection of the first pixel opening on the display panel. The first metal frame WG1comprises a first bar B1and a second bar B2that are opposite to each other in a first direction.

A fracture DK is provided between at least some of adjacent touch electrodes21. The fracture DK comprises first fractures DK1. At least one first fracture DK1is located on the first bar B1of a first metal frame WG1, and at least one first fracture DK1is located on the first bar B1or the second bar B2of another first metal frame WG1. The first direction is parallel to the display panel.

In an embodiment, the display panel herein may be a display panel using an organic light-emitting diode display technology, that is, an organic light-emitting diode (OLED) display panel. The light-emitting element30of the OLED display panel comprises an anode301, a light-emitting material layer302and a cathode303. When a power supply supplies an appropriate voltage, holes in the anode301and electrons in the cathode303combine in the light-emitting material layer to generate a bright light. Compared with a film field effect transistor liquid crystal display, an OLED display device has characteristics of high visibility and high brightness, and is more power-saving, lighter and thinner. Apparently, in some other embodiments, the display panel may also be a display panel using an inorganic light-emitting diode display technology, for example, a Micro LED display panel, a Mini LED display panel, or the like.

FIG.2only takes the OLED display panel as an example for explanation. In one embodiment, the display layer10comprises a pixel definition layer19in which multiple pixel openings K are defined. In a direction perpendicular to the display panel, the display layer10further comprises an anode301and a cathode303that are respectively arranged on both sides of the pixel definition layer19, and a light-emitting material layer302arranged between the anode301and the cathode303. The light-emitting material layer302is arranged at least in the pixel openings K. The first pixel opening K1mentioned in the embodiments of the present disclosure is filled with a light-emitting material of a first color. In an embodiment, an encapsulation layer50is further arranged on a side of the cathode303away from the anode301. The display panel further comprises a substrate00and a driving layer40arranged between the substrate00and the display layer10. The driving layer40is provided with a driving circuit configured to supply a driving voltage to the display layer10, to drive the display layer10to emit light. In an embodiment, the driving layer40comprises a first metal layer m1, a capacitive metal layer mc, and a second metal layer m2that are arranged on the substrate00. The first metal layer m1, for example, may be a gate metal layer. Agate of a transistor in the display panel may be arranged in the first metal layer m1. The capacitive metal layer me is configured to form a capacitive structure together with the first metal layer m1or the second metal layer m2. A source electrode s and a drain electrode d of a transistor T in the display panel may be arranged in the second metal layer m2. A semiconductor layer poly comprises a source region and a drain region. The source region and the drain region are formed by doping N-type impurity ions or P-type impurity ions. The source electrode s of the transistor is electrically connected to the source region of the semiconductor layer poly through a contact hole, and the drain electrode d of the transistor is electrically connected to the drain region of the semiconductor layer poly through a contact hole. In an embodiment, the encapsulation layer50is a film encapsulation layer, comprising a first inorganic layer51, an organic layer52and a second inorganic layer53, and is configured to isolate water and oxygen to avoid the influence of the external water and oxygen on the light-emitting material layer.

FIG.1,FIG.5,FIG.6andFIG.7illustrate feasible arrangement of pixels in the display panel, but do not limit an actual arrangement of pixels in the display panel. In some other embodiments, the pixels in the display panel may be arranged in other ways. It should be noted that the dashed lines inFIG.6are not actual lines in the display panel, but are configured to illustrate arrangement of fractures through when two touch electrodes are insulated from each other. The dashed lines reflect a contour of a junction of two adjacent touch electrodes. For example, the contour corresponds to a serrated contour inFIG.4.

FIG.3andFIG.4only illustrate that the touch electrode21is a mutual capacitance touch electrode21. In some other embodiments, the touch electrode21may be a self-capacitance structure, which is not limited in the present disclosure. Taking the mutual capacitance touch electrode21as an example, the touch electrode21comprises multiple first touch electrodes211and multiple second touch electrodes212. The first touch electrodes211and the second touch electrodes212are insulated from each other. For example, the first touch electrode211may be an excitation electrode, and the second touch electrode212may be an induction electrode. In one embodiment, the first touch electrode211is an induction electrode, and the second touch electrode212is an excitation electrode. Each of the first touch electrodes211comprises multiple first sub-touch electrodes2111that are connected to each other, and each of the second touch electrodes212comprises multiple second sub-touch electrodes2121that are connected to each other. In the display panel, the first sub-touch electrode2111and the second sub-touch electrode2121each may be a block structure, a graphical structure as shown inFIG.4, or other feasible graphical structure. In an embodiment, a virtual electrode219may further be provided between adjacent first sub-touch electrode2111and second sub-touch electrode2121.

In an embodiment, the first sub-touch electrode2111and the second sub-touch electrode2121each comprise the metal frame WG as shown inFIG.5. In an embodiment, an orthographic projection of the first sub-touch electrode2111and the second sub-touch electrode2121on the display panel corresponds to multiple pixel openings.

Adjacent first touch electrode211and second touch electrode212in the display panel are insulated from each other (that is, adjacent first sub-touch electrode2111and second sub-touch electrode2121are insulated from each other). During actual manufacturing, the metal frames WG are broken at corresponding positions to form the fractures DK, so as to achieve the insulation. Reference is made toFIG.6, which shows a way in which the metal frames corresponding to the adjacent first touch electrode and second touch electrode are broken to form fractures. In related technologies, due to the presence of the fractures DK, at a large viewing angle, when viewing a displayed screen at a same angle, the arrangement of fractures on the metal frames corresponding to sub-pixels with the same color is usually irregular. Positions with the fractures are in a bright state due to light leakage from the fractures. However, positions without the fractures are in a relatively dark state when being viewed at the same angle, because there is no light leakage in these positions. Therefore, there is prone to alternate diagonal horizontal lines of brightness and darkness, that is, the problem of horizontal lines at a large viewing angle, which affects the display effect. In view of this, the positions of the fractures DK on the metal frames are improved in the embodiments of the present disclosure.

In some embodiments shown inFIG.5toFIG.7, the orthographic projection of the first metal frame WG1on the display panel corresponds to the orthographic projection of the first pixel opening K1on the display panel, which means that the orthographic projection of the first metal frame WG1on the display panel surrounds the orthographic projection of the first pixel opening K1on the display panel. Taking the embodiment shown inFIG.7as an example, the first metal frame WG1is regarded as a frame having a rectangular annular structure surrounding the first pixel opening K1. The first metal frame WG1comprises the first bar B1and the second bar B2that are opposite to each other in the first direction D1.FIG.5toFIG.7illustrate that the first metal frame WG1has a rectangular structure and the first pixel opening K1has a rectangular structure. The first bar B1and the second bar B2, which are opposite to each other in the first direction D1, of the first metal frame WG1refer to two parallel sides of the first metal frame WG1. The first fracture DK1refers to the fracture DK formed on the first metal frame WG1. In an embodiment, in a case that the first fracture DK1is formed on the first metal frame WG1corresponding to the first pixel opening K1, at least one first fracture DK1is located on the first bar B1of a first metal frame WG1, and at least one first fracture DK1is located on the first bar B1or the second bar B2of another first metal frame WG1(FIG.7illustrates that the first fracture DK1is located on the second bar B2). In this way, at a large viewing angle, when viewing the display panel from a same angle, referring toFIG.6, for example, when viewing the display panel at a position A, the fractures, formed on the first metal frames WG1corresponding to the first pixel openings K1, are all located on opposite sides in the first direction D1. When the first pixel openings provided with fractures are viewed at the position A, the first pixel openings are the same in brightness even if there is light leakage at the fractures. Similarly, when viewing the display panel at a position B, the fractures, formed on the first metal frames WG1corresponding to the first pixel openings K1, are all located on the opposite sides in the first direction D1, and light leakage at the fractures cannot be detected at the position B, and thus the brightness of these first pixel openings observed by human eyes remains consistent. Therefore, in the embodiment, sides, on which the first fractures DK1are arranged, of different first metal frames WG1are parallel, which is conducive to reducing a difference in visual brightness when viewing the display panel from a same angle at a large viewing angle, so as to reduce the display horizontal lines caused by the irregular arrangement of the fractures, to improve the overall display effect of the display panel.

The fractures mentioned in the above embodiments are configured to insulate the adjacent first touch electrode211and second touch electrode212from each other. Other metal frames inside the first touch electrode211may be provided with no fracture, and other metal frames inside the second touch electrode212may be provided with no fracture. In some other embodiments, in order to improve the consistency of visual brightness at an angle at a large viewing angle, other metal frames inside the first touch electrode211and other metal frames inside the second touch electrode212may also be provided with fractures. For example, for the first metal frames inside the first touch electrode211and the second touch electrode212, fractures may be arranged on sides that are opposite to each other in the first direction D1(i.e. sides extending in the second direction D2) (but it is required to ensure the electrical connection between the metal frames inside the first touch electrode or the second touch electrode), and when the first pixel openings are viewed at an angle at a large viewing angle, light leakages corresponding to various first pixel openings are the same at positions on the interior and the edge of a same touch electrode, to facilitate improving the consistency of visual brightness at a same angle at a large viewing angle.

The embodiment shown inFIG.7shows a solution in which the first fractures are arranged on the sides, opposite to each other in the first direction, of the first metal frames in a case that the first metal frames corresponding to the first pixel openings K1are provided with the first fractures. In addition, in some other embodiments, in a case that the first metal frames are provided with the first fractures, the first fractures may also be arranged on the sides, opposite to each other in the second direction, of the first metal frames. The embodiment shown inFIG.7only shows a solution in which some of the first metal frames each are provided with only one fracture. In some other embodiments, each first metal frame may be provided with two fractures. For example, referring toFIG.6, for each first metal frame provided with a fracture, the first metal frame corresponding to each first pixel opening K1may be provided with two first fractures that are respectively formed on two sides, opposite to each other in the first direction, of the first metal frame. Apparently, in some other embodiments, the two first fractures of the first metal frame may also be formed on two sides, which are opposite in the second direction, of the first metal frame, which is not limited in the present disclosure.

It should be noted thatFIG.6andFIG.7only show the arrangement of fractures of the first metal frames corresponding to a part of first pixel openings. In a case that the first metal frames corresponding to other first pixel openings are provided with fractures, the fractures may be arranged with reference to the arrangement shown inFIG.6orFIG.7.

Assuming that the metal frame is composed of four sides that are connected from end to end, in a case that the metal frame is provided with the fracture DK, the fracture DK may be located at a middle of a side among the four sides. Apparently, in some other embodiments, the fracture DK may be located at other position of a side among the four sides, which is not limited in the present disclosure.

In the embodiment, the light-emitting elements corresponding to the first pixel openings K1have a same color. For example, the light-emitting elements are all red light-emitting elements, all green light-emitting elements, or all blue light-emitting elements. In one embodiment, the first pixel openings correspond to the red light-emitting elements, the fractures DK of the first metal frames WG1adopt the above design, which is conducive to reducing the horizontal lines of a red screen at a large viewing angle. In the embodiments, different pixel openings are filled with different fillers only for distinguishing different pixel openings rather than limiting structures of the pixel openings.

FIG.8is a diagram showing another relative position relationship between the pixel openings and the metal frames of the touch electrode21according to an embodiment of the present disclosure. Referring toFIG.8, in one embodiment, the pixel opening comprises multiple second pixel openings K2. Light-emitting elements corresponding to the second pixel openings K2all have a same light-emitting color, and the light-emitting color is a second color different from the first color.

The metal frame comprises a second metal frame WG2. An orthographic projection of the second metal frame WG2on the display panel corresponds to an orthographic projection of the second pixel opening K2on the display panel, and the second metal frame WG2comprises a third bar B3and a fourth bar B4that are opposite to each other in the first direction D1. The fracture DK comprises a second fracture DK2. At least one second fracture DK2is located on the third bar B3of a second metal frame WG2, and at least one second fracture DK2is located on the third bar B3or the fourth bar B4of another second metal frame WG2(the embodiment shown inFIG.8illustrates that the at least one second fracture is located on the fourth bar B4).

In a case that the display panel is further provided with the second pixel openings K2, the light-emitting color of the light-emitting elements corresponding to the second pixel openings K2is the second color different from the first color. For example, in a case that the first color is red, the second color may be green, blue, or the like. The orthographic projection of the second metal frame WG2on the display panel is located on a periphery of the orthographic projection of the second pixel opening K2on the display panel and is located surrounding the second pixel opening K2. In a case that the touch electrodes are insulated from each other through the fractures DK, the fractures DK may be formed on the first metal frames WG1or the second metal frames WG2. In the embodiments, the first fractures DK1are regarded as fractures formed on the first metal frames WG1, and the second fractures DK2are regarded as fractures formed on the second metal frames WG2.

The second metal frame WG2comprises the third bar B3and the fourth bar B4that are opposite to each other in the first direction D1. At least one second fracture DK2is located on the third bar B3of a second metal frame WG2, and at least one second fracture DK2is located on the third bar B3or the fourth bar B4of another second metal frame WG2. In this way, the sides, on which the second fractures DK2are located, of the second metal frames WG2are parallel. Therefore, when viewing the displayed screen from a same angle at a large viewing angle, lights with the second color emitted by the light-emitting elements in the second pixel openings K2have the same or similar amount of light leakage at positions corresponding to the second pixel openings K2provided with the second fractures DK2, which is conducive to reducing the difference in visual brightness when viewing the display panel from a same angle at a large viewing angle, and thus is conducive to reducing the display horizontal lines caused by the irregular arrangement of fractures, to facilitate improving the overall display effect of the display panel.

In a case that the first fracture DK1is located on the first bar B1or the second bar B2of the first metal frame WG1where the first bar B1and the second bar B2are opposite to each other in the first direction D1, the second fracture DK2is located on the third bar B3or the fourth bar B4of the second metal frame WG2where the third bar B3and the fourth bar B4are opposite to each other in the first direction D1, sides, on which the first fracture DK1and the second fracture DK2are located, in the first metal frame WG1and the second metal frame WG2are parallel, which is conducive to reducing the horizontal lines of the display panel at a large viewing angle and simplifying a manufacturing process of forming the first fractures DK1and the second fractures DK2on the touch layer20, to improve the efficiency of producing the display panel.

It should be noted that in order to further improve the consistency of visual brightness at a large viewing angle, the second fractures DK2may be provided on the second metal frames inside the touch electrodes, and are formed on sides, extending in a same direction, of the second metal frames WG2.

The embodiment shown inFIG.8only shows a solution that a part of the second metal frames each are provided with only one fracture. In some other embodiments, each second metal frame may also be provided with two fractures, which is not limited in the present disclosure.

In a case that the first metal frame WG1and the second metal frame WG2each are provided with the fractures DK, the embodiment shown inFIG.8shows the solution that the first fractures DK1and the second fractures DK2are both arranged on sides that are opposite to each other in the first direction D1. That is, the sides where the first fractures DK1and the second fractures DK2are arranged have a same extension direction. In some other embodiments, a side, provided with the second fracture DK2, in the second metal frame WG2and a side, provided with the second fractures DK2, in the first metal frame WG1may be different in extension direction. Reference is made toFIG.9, which shows another relative position relationship between the pixel openings and the metal frames of the touch electrode21according to an embodiment of the present disclosure.

Reference is made toFIG.6andFIG.9, in an embodiment, the pixel opening comprises multiple second pixel openings K2. The light-emitting color of the light-emitting elements corresponding to the second pixel openings K2is the second color different from the first color.

The metal frame comprises the second metal frame WG2. The orthographic projection of the second metal frame WG2on the display panel corresponds to the orthographic projection of the second pixel opening K2on the display panel. The second metal frame WG2comprises a fifth bar B5and a sixth bar B6that are opposite to each other in the second direction D2. The fracture DK comprises a third fracture DK3. At least one third fracture DK3is located on the fifth bar B5of a second metal frame WG2, and at least one third fracture DK3is located on the fifth bar B5or the sixth bar B6of another second metal frame WG2(the embodiment shown inFIG.9illustrates that the at least one third fracture DK3is located on the sixth bar B6). The second direction D2is parallel to the display panel, and the second direction D2intersects with the first direction D1.

This embodiment shows a solution in which in a case that the second fractures DK2are formed on the second metal frames WG2, a part of the second fractures DK2are located on the fifth bars B5of a second metal frames WG2and another part of the second fractures DK2are located on the sixth bars B6of another second metal frames WG2. The fifth bar B5and the sixth bar B6are opposite to each other in the second direction D2. An extension direction of the fifth bar B5and the sixth bar B6intersects with the extension direction of the first bar B1and the second bar B2in the first metal frame WG1. It should be noted that in a case that the metal frames corresponding to the pixel openings, which correspond to the light-emitting elements with different colors, are provided with the fractures DK, for example, in a case that a part of the first metal frames WG1are provided with fractures and a part of the second metal frames WG2are provided with fractures, as long as the sides, on which the fractures DK are located, in the first metal frames WG1are opposite to each other in a direction and the sides, on which the fractures DK are located, in the second metal frames WG2are opposite to each other in another direction, the horizontal lines at a large viewing angle can be reduced whether the two directions are the same or different.

The embodiment shown inFIG.9only shows a solution in which a part of the second metal frames each are provided with only one fracture. In some other embodiments, one second metal frame may be provided with two fractures. Referring toFIG.6, for the second metal frames provided with fractures, the second metal frame corresponding to each second pixel opening K2may be provided with two second fractures that are respectively located on two sides, which are opposite to each other in the second direction, in the second metal frame. Apparently, in some other embodiments, the two second fractures on the second metal frame may also be respectively located on two sides, opposite to each other in the first direction, in the second metal frame, which is not limited in the present disclosure.

It should also be noted that the dashed line in the embodiment shown inFIG.6is a contour line connecting the fractures, and a contour of edges of the two touch electrodes can be seen through the dashed line. For a first sub-touch electrode2111or a second sub-touch electrode2121, sides, on which fractures are located, in the first metal frame corresponding to the first pixel opening are parallel, and sides, on which fractures are located, in the second metal frame corresponding to the second pixel opening are parallel. Accordingly, for a touch electrode, sides, on which fractures are located, in the first metal frame corresponding to the first pixel opening are parallel, and sides, on which fractures are located, in the second metal frame corresponding to the second pixel opening are parallel. The embodiment shown inFIG.6illustrates that sides, on which fractures are located, in the first metal frame extend in the second direction D2, and sides, on which fractures are located, in the second metal frame extend in the first direction D1. In an embodiment, the first pixel opening corresponds to one of the red light-emitting element and the blue light-emitting element, and the second pixel opening corresponds to the other of the red light-emitting element and the blue light-emitting element.

FIG.10is a cross section view ofFIG.8in a direction indicated by BB. This embodiment shows a solution in which the display panel further comprises a light blocking part60.

Referring toFIG.10, in one embodiment, the display panel further comprises a light blocking part60. The light blocking part60at least partially overlaps with the fracture DK in a direction perpendicular to the display panel.

In a case that the display panel comprises the light blocking part60, the light blocking part60is arranged in the light-emitting direction of the light-emitting element, that is, on a side of the light-emitting element towards the touch layer20. An orthographic projection of the light blocking part60on the display panel at least partially overlaps with an orthographic projection of the fracture DK on the display panel. In a case that the light blocking part60is not introduced into the display panel, at least a part of lights emitted by the light-emitting element may exit from the position where the fracture DK is located. In a case that the light blocking part60is introduced into the display panel, the light blocking part60overlaps with the fracture DK in the direction perpendicular to the display panel, and at least a part of the lights emitted by the light-emitting element are blocked by the light blocking part60rather than emitting from the position where the fracture DK is located, which is conducive to reducing the amount of light emitting from the fracture DK. In a case that the amount of light emitting from the fracture DK is reduced, when the display panel is viewed from an angle at a large viewing angle, even if light leakage from the fractures is viewed, the amount of the light leakage that can be viewed is reduced. In addition, in a case that the light leakage from the fractures is reduced, the amount of the light leakage in a region where the metal frame with the fracture is located tends to be the same with the amount of the light leakage in a region where the metal frame without the fracture is located, which is also conducive to improving the consistency in visual brightness when viewing the display panel from a same angle, to reduce the horizontal lines of the display panel at a large viewing angle and improving the display effect of the display panel.

FIG.11is a cross section view of the touch layer inFIG.4in a direction indicated by CC. Reference is made toFIG.10andFIG.11, in one embodiment, the touch layer20comprises an electrode layer201and a bridge layer202. The bridge layer202is arranged between the electrode layer201and the display layer10. The metal frames are arranged in the electrode layer201. The bridge layer202comprises multiple bridges210. At least some of the metal frames WG are electrically connected through the bridges210. Referring toFIG.10andFIG.11, the light blocking part60is arranged in the bridge layer202, and the light blocking part60is insulated from the bridges210.

Referring toFIG.4,FIG.10andFIG.11, in the display panel herein, the touch layer20comprises two conductive layers, namely, the electrode layer201and the bridge layer202. The electrode layer201is configured to arrange touch electrodes21. In a case that the touch electrode21is the mutual capacitance touch electrode21, the first touch electrode211and the second touch electrode212are insulated from each other. The first touch electrode211and the second touch electrode212each comprise multiple electrode blocks. In a case that the electrode blocks in the first touch electrode211are electrically connected through a conductive structure in the electrode layer201, the electrode blocks in the second touch electrode212are electrically connected through the bridge210in the bridge layer202in order to avoid a short circuit between the first touch electrode211and the second touch electrode212. In a case that the light blocking part60is introduced into the display panel to block the light exiting from the fracture DK and set in the bridge layer202in this embodiment, the bridge layer202is reused as the light blocking part60rather than introducing a separate film into the display panel as the light blocking part60, which is conducive to simplifying a film structure of the display panel. In practical manufacture, the light blocking part60and the bridge210in the bridge layer202may be manufactured in a same procedure and a separate procedure for manufacturing the light blocking part60is unnecessary, which is conducive to simplifying an overall procedure for manufacturing the display panel after introducing the light blocking part60, to improve the efficiency of producing the display panel.

In an embodiment, referring toFIG.10, in the display panel according to the embodiments of the present disclosure, the electrode layer201in the touch layer20is arranged on a side of the bridge layer202away from the display layer10. That is, the electrode layer201is closer to a light emitting surface of the display panel, which is conducive to reducing a distance between the touch electrode21and a body touching the display panel, to improve the touch sensitivity of the display panel.

In a case that the bridge layer202is arranged on a side of the electrode layer201towards the display layer10, and the light blocking part60is set in the bridge layer202, the light blocking part60is arranged on a side of the fracture DK towards the display layer10. In some other embodiments, the light blocking part60may be arranged at other position. For example, reference is made toFIG.12, which is another cross section view ofFIG.8in the direction indicated by BB, and this embodiment shows another solution in which the display panel is provided with the light blocking part60.

Referring toFIG.12, in one embodiment, the light blocking part60is arranged on a side of the touch layer20away from the display layer10.

In a case that the light blocking part60is arranged on the side of the touch layer20away from the display layer10, since the fracture DK is located on the metal frame corresponding to the touch electrode21in the touch layer20, it is equivalent to arranging the light blocking part60on the side of the fracture DK away from the display layer10. When a light from the display layer10is incident on the fracture DK and further emits from the position where the fracture is located, it is equivalent to setting the light blocking part60in a direction in which the light emits from the fracture DK. Therefore, the light exiting from the fracture DK to the light emitting surface of the display panel may be blocked well by the light blocking part60rather than emitting in a direction at a large viewing angle. Therefore, the light being blocked is conducive to reducing the horizontal lines of the display panel caused by light leakage at a large viewing angle.

Referring toFIG.12, in one embodiment, in the direction perpendicular to the display panel, the light blocking part60and the fracture DK are isolated by an insulating layer JY.

In a case that the light blocking part60is arranged on the side of the touch layer20away from the display layer, the insulating layer JY is provided on a side of the touch layer20away from the display layer10, and the light blocking part60is arranged on a side of the insulating layer JY away from the touch layer20. In this case, the light blocking part60may be made of a light blocking metal material. The light blocking metal material has a better light blocking effect, which is conducive to reducing the light leakage at the fracture.

In a case that the light blocking part60is arranged on a side of the touch layer20facing the display layer, the light blocking part60and the fracture DK may also be isolated by the insulating layer JY Reference is made toFIG.13andFIG.14.FIG.13is another cross section view ofFIG.8in the direction indicated by BB andFIG.14is another cross section view ofFIG.8in the direction indicated by BB. Reference is made toFIG.13, in a case that the encapsulation layer50comprises multiple stacked films, for example, the first inorganic layer51, the organic layer52and the second inorganic layer53that are stacked, the first inorganic layer51is arranged on a side of the organic layer52facing the touch layer20, and the second inorganic layer53is arranged on a side of the organic layer52facing the display layer10. The light blocking part60may be arranged between the first inorganic layer51and the organic layer52. In addition, the first inorganic layer51may be regarded as the insulating layer JY between the light blocking part60and the fracture DK. Therefore, it is unnecessary to provide an additional insulating layer in the display panel, to simplify the film structure of the display panel. In some other embodiments, reference is made toFIG.14, the light blocking part60may also be arranged between the organic layer52and the second inorganic layer53. In this case, the organic layer52and the first inorganic layer51may be regarded as the insulating layers JY between the light blocking part60and the fracture DK, and therefore it is unnecessary to provide an additional insulating layer in the display panel, to simplify the film structure of the display panel.

The above embodiments show the solution in which the light blocking part60is located on the side of the fracture DK facing the display layer10or the side of the fracture DK away from the display layer10. In some other embodiments, the light blocking part60may also be located in the fracture DK. Reference is made toFIG.15andFIG.16,FIG.15is a schematic diagram showing a relative position relationship between pixel openings and metal frames of the touch electrodes21according to an embodiment of the present disclosure, andFIG.16is a cross section view ofFIG.15in a direction indicated by DD.

Reference is made toFIG.15andFIG.16, in one embodiment, the light blocking part60is made of an insulating material, and the light blocking part60is at least filled in the fracture DK.

This embodiment shows a solution in which the light blocking part60is at least partially filled in the fracture DK. During practical manufacturing, after the fractures DK are formed in the metal frames of the touch electrodes21, light blocking parts60are filled at positions where the fractures DK are located, and then other films are manufactured. The light blocking parts60filled in the fractures DK serve as an insulating layer having a light blocking effect. In a case that the light blocking parts60are filled in the fractures DK, the light blocking parts60effectively fill gaps at the positions where the fractures DK are located, and light blocking effect of various positions in the metal frames is consistent, which effectively reduces the light leakage at the fractures DK at a large viewing angle, and thus is conducive to reducing the display horizontal lines of the display panel caused by the light leakage at the fractures DK. In an embodiment, in a case that the light blocking part60is filled in the fracture DK, a width of the light blocking part60is the same as a width of the fracture DK on the metal frame.

In one embodiment, in the direction perpendicular to the display panel, a width H of a gap between the light blocking part60and the fracture DK is greater than or equal to 0 and less than or equal to 3 μm.

In a case that the light blocking part60is introduced in the display panel, reference is made toFIG.15andFIG.16, the light blocking part60is filled in the fracture DK, thus the width of the gap between the light blocking part60and the fracture DK may be regarded as 0. In addition, in a case that the light blocking part60is arranged on the side of the fracture DK facing or away from the display layer10, reference is made toFIG.12, a small width of the gap between the light blocking part60and the fracture DK is conducive to avoiding the light leakage at the fracture DK, and a large width of the gap between the light blocking part60and the fracture DK, for example, greater than 3 μm, is not conducive to blocking the light at a large viewing angle. Therefore, in an embodiment, the width of the gap between the light blocking part60and the fracture DK is set to be less than or equal to 3 μm, which is conducive to ensuring a shielding effect of the light blocking part60on the light leakage at the fracture DK and reducing the horizontal lines at a large viewing angle caused by the light leakage at the fracture DK.

FIG.17is a diagram showing a relative position relationship between the fracture DK and the light blocking part60. Reference is made toFIG.17, in one embodiment, in the corresponding fracture DK and the light blocking part60, an orthographic projection of the fracture DK on the display panel is a first projection Y1, and an orthographic projection of the light blocking part60on the display panel is a second projection Y2. The first projection Y1is located within the second projection Y2, and a minimum distance S between a contour of the first projection Y1and a contour of the second projection Y2is greater than or equal to 1 μm.

Reference is made toFIG.12toFIG.14, andFIG.17, in a case that the light blocking part60is arranged on the side of the fracture DK facing or away from the display layer10, an area of the contour of the second projection Y2corresponding to the light blocking part60may be larger than an area of the contour of the first projection Y1corresponding to the fracture DK, and the first projection Y1is within the second projection Y2. A gap is formed between the contour of the second projection Y2and the contour of the first projection Y1. The minimum distance S between the contour of the first projection Y1and the contour of the second projection Y2is a minimum width of the gap. The minimum width is set to be greater than or equal to 1 μm, which is conducive to increasing a light blocking area of the light blocking part60. For example, when the light from the display layer10is incident on the fracture DK and further exits from the fracture DK, the light may diffuse to the periphery of the fracture DK. In a case that the contour of the light blocking part60is outward at least 1 μm relative to the contour of the fracture DK, the light diffusing to the periphery of the fracture DK can be blocked, which is conducive to improving the light blocking effect of the light blocking part60, to reduce the display horizontal lines of the display panel caused by the light leakage at the fracture DK.

FIG.18is another schematic structural diagram of the fracture DK on the metal frame. Reference is made toFIG.7andFIG.18. In one embodiment, among adjacent touch electrodes21, a touch electrode21comprises a first segment XD1, and the another touch electrode21comprises a second segment XD2. A surface of the first segment XD1facing the second segment XD2is a first side surface, and a surface of the second segment XD2facing the first segment XD1is a second side surface. The fracture DK is arranged between the first side surface and the second side surface. An orthographic projection of the first side surface on the display panel is a first straight segment ZX1, an orthographic projection of the second side surface on the display panel is a second straight segment ZX2, and the first straight segment ZX1is parallel to the second straight segment ZX2.

In an embodiment, the fracture DK is introduced in the metal frame to ensure the insulation between adjacent touch electrodes. It is assumed that among two adjacent touch electrodes, a touch electrode comprises the first segment XD1and another touch electrode comprises the second segment XD2. In a case that the fracture DK is not formed, the first segment XD1and the second segment XD2are connected. The fracture DK may be regarded as an opening formed after cutting a complete segment. The complete segment is divided into the first segment XD1and the second segment XD2by the fracture DK. An interval between the opposite side surfaces of the first segment XD1and the second segment XD2is the position where the fracture DK is located. The orthographic projection of the first side surface corresponding to the first segment XD1on the display panel is the first straight segment ZX1, and the orthographic projection of the second side surface corresponding to the second segment XD2on the display panel is the second straight segment ZX2. The first straight segment ZX1is parallel to the second straight segment ZX2. That is, the side surfaces on both sides of the fracture DK are parallel. The fracture DK is formed with parallel side surfaces, which is conducive to simplifying an entire process of manufacturing the display panel.

Reference is made toFIG.7, in one embodiment, in at least a part of the fractures DK, an extension direction of the first straight segment ZX1is perpendicular to an extension direction of the first segment XD1.

In a case that the extension direction of the first straight segment ZX1and the second straight segment ZX2is perpendicular to the extension direction of the first segment XD1, the fracture DK is a flat fracture DK. In practical manufacturing, the flat fracture DK may be formed by cutting the metal frame in a flat cutting manner, which is conducive to simplifying the process of manufacturing the display panel.

Reference is made toFIG.18, in one embodiment, in at least a part of the fractures DK, the extension direction of the first straight segment ZX1is not parallel to and not perpendicular to the extension direction of the first segment XD1.

In a case that the extension direction of the first straight segment ZX1and the second straight segment ZX2is not parallel to and not perpendicular to the extension direction of the first segment XD1, the fracture DK is an oblique fracture DK. In practical manufacturing, the oblique fracture DK may be formed by cutting the metal frame in an oblique cutting manner, which is also conducive to simplifying the process of manufacturing the display panel.

Reference is made toFIG.7andFIG.18, in one embodiment, a minimum distance D0between the first straight segment ZX1and the second straight segment ZX2corresponding to a same fracture DK is less than or equal to 2.5 μm.

In an embodiment, the minimum distance between the first straight segment ZX1and the second straight segment ZX2is the minimum width of fracture DK. On a premise that the width of the fracture DK is greater than 0, a small width of fracture DK is conducive to reducing the light leakage. Considering a limitation of the process, in an embodiment, the width of fracture DK is set to be less than or equal to 2.5 μm. For example, D0is set to be equal to 2 μm, which not only ensures the insulation between the adjacent touch electrodes21, but also is conducive to reducing the light leakage at the fracture DK.

FIG.19andFIG.20are schematic structural diagrams of the fracture on the metal frame, respectively. This embodiment shows a solution in which the fracture DK is in other shape.

Reference is made toFIG.19andFIG.20, in one embodiment, among the adjacent touch electrodes, one touch electrode comprises a first segment XD1, and another touch electrode comprises a second segment XD2. A surface of the first segment XD1facing the second segment XD2is a first side surface, and a surface of the second segment XD2facing the first segment XD1is a second side surface. The fracture DK is arranged between the first side surface and the second side surface. An orthographic projection of the first side surface on the display panel comprises a first convex curve70, and an orthographic projection of the second side surface on the display panel comprises a first concave curve71. A shape of the first convex curve70fits with a shape of the first concave curve71.

This embodiment shows a solution in which the fracture DK on the metal frame is in an irregular shape. The embodiments shown inFIG.19andFIG.20show solutions in which the first side surface of the first segment XD1comprises the first convex curve70, and the second side surface of the second segment XD2comprises the first concave curve71. The shape of the fracture DK in the embodiment shown inFIG.19is a triangle, and the shape of the fracture DK in the embodiment shown inFIG.20is a polygonal line. For the fracture DK having a triangular structure, the fracture DK forms two light outlet channels that are connected. When the light emitted by the light-emitting element of the display layer exits through the fracture DK having a triangular structure, the light passes through the two light outlet channels, which is equivalent to increasing a transmission path of the light. The light is attenuated in transmission. Therefore, when the light emitted by the light-emitting element passes through the light outlet channels in the fracture DK having a triangular structure, the reserve of the light is reduced. That is, the light leakage of the fracture DK is reduced, which is conducive to reducing the display horizontal lines caused by the light leakage at the fractures DK.

Similarly, for the fracture DK having a polygonal line structure, the fracture DK forms three light outlet channels that are connected. When the light emitted by the light-emitting element exits through the fracture DK having a polygonal line structure, the light passes through the three channels, which further extend the transmission path of the light. Therefore, the light is attenuated more in transmission, which is more conducive to reducing the light leakage at the fracture DK, and reducing the display horizontal lines caused by the light leakage at the fractures DK.

Reference is made toFIG.19andFIG.20, in one embodiment, the maximum width D1of the gap between the first side surface and the second side surface is less than or equal to 2.5 μm. On a premise of ensuring the insulation between the first side surface and the second side surface, a smaller width of the gap between the first side surface and the second side surface is conducive to reducing the light leakage at the fracture DK. Furthermore, considering the process difficulty, in the embodiment, a maximum width of the gap between the first side surface and the second side surface is less than or equal to 2.5 μm. For example, D1may be equal to 2 μm, which is not only conducive to reducing the light leakage at the fracture DK, but also conducive to ensuring the insulation between the touch electrodes on both sides of the fracture DK.

FIG.21is another schematic structural diagram of the fracture on the metal frame. Reference is made toFIG.6andFIG.21, in one embodiment, the pixel opening K further comprises multiple third pixel openings K3. Light-emitting elements corresponding to the third pixel openings K3are configured to emit light with a third color, and the third color is different from the first color. The metal frame comprises a third metal frame WG3. An orthographic projection of the third metal frame WG3on the display panel corresponds to an orthographic projection of the third pixel opening K3on the display panel. The third metal frame WG3comprises a seventh bar B7and the eighth bar B8that are opposite to each other in the first direction D1, and a ninth bar B9and a tenth bar B10that are opposite to each other in the second direction D2. The fracture comprises a fourth fracture DK4and a fifth fracture DK5. At least one fourth fracture DK4is located on the seventh bar B7of a third metal frame WG3, and a fifth fracture DK5is located on the ninth bar B9or the tenth bar B10of the third metal frame WG3. At least one fourth fracture DK4is located on the seventh bar B7or the eighth bar B8of another third metal frame, and a fifth fracture DK5is located on the ninth bar B9or the tenth bar B10of the third metal frame WG3. The second direction D2is parallel to the display panel and not parallel to the first direction D1.

Reference is made toFIG.21, this embodiment shows a solution in which the display panel comprises the third pixel opening K3and the corresponding third metal frame WG3. In an embodiment, the light-emitting element corresponding to the third pixel opening K3is the green light-emitting element, the light-emitting element corresponding to the first pixel opening K1is the blue light-emitting element, and the light-emitting element corresponding to the second pixel opening K2is the red light-emitting element.

Reference is made toFIG.6andFIG.21, a third metal frame WG3is provided with two fractures, namely the fifth fracture DK5and the fourth fracture DK4. The fifth fracture DK5is located on the ninth bar B9of the third metal frame WG3, and the fourth fracture DK4is located on the seventh bar B7. Another third metal frame WG3is also provided with two fractures, namely the fifth fracture DK5and the fourth fracture DK4. The fifth fracture DK5is located on the tenth bar B10of the third metal frame WG3, and the fourth fracture is located on the eighth bar B8. In a same third metal frame WG3, the seventh bar B7and the eighth bar B8are opposite to each other in the first direction D1, and the ninth bar B9and the tenth bar B10are opposite to each other in the second direction D2. Thus, in a case that a part of the third metal frames WG3is provided with two fractures, fifth fractures DK5on two third metal frames WG3are in pairs. For a pair of fifth fractures DK5, the fifth fractures DK5are respectively located on the ninth bars B9or the tenth bars B10of the two third metal frames WG3. In addition, fourth fractures DK4are also in pairs. For a pair of fourth fractures DK4, the fourth fractures DK4are respectively located on the seventh bars B7or the eighth bars B8of the two third metal frames WG3. Such arrangement of the fourth fractures DK4and the fifth fractures DK5on the third metal frames WG3is conducive to reducing the display horizontal lines of the display panel at a large viewing angle.

Based on a same concept, a display device is further provided according to the present disclosure.FIG.22is a top view of the display panel according to an embodiment of the present disclosure. Reference is made toFIG.22, the display device200comprises the display panel100according to the above embodiments of the present disclosure.

The display device herein may be a display device with a display function and a touch function, and a mobile phone, a tablet, a computer, a television, and a vehicle display device, which is not limited in the present disclosure. The display device according to the embodiments of the present disclosure has the beneficial effects of the display panel according to the embodiment of the present disclosure. The beneficial effects may refer to the description of the display panel in the above embodiments, which are not repeated.

The display panel and the display device according to the present disclosure have at least the following beneficial effects.

In the display panel and the display device herein, the touch layer is arranged on a side of the display layer, and the touch layer comprises multiple touch electrodes that are insulated from each other to realize the touch function of the display panel. The multiple touch electrodes comprise multiple metal frames that are electrically connected, and a fracture is provided between the adjacent touch electrodes to realize the insulation between the adjacent touch electrodes through the fracture. The display layer comprises multiple pixel openings and light-emitting elements corresponding to the pixel openings. The pixel opening herein comprises the first pixel opening. The light-emitting elements corresponding to the first pixel openings are configured to emit light with the same first color. The first metal frame corresponds to the first pixel opening. That is, the orthographic projection of the first metal frame on the display panel is located at the periphery of the orthographic projection of the first pixel opening on the display panel and surrounds the first pixel opening. The fracture formed on the first metal frame is the first fracture. The first metal frame comprises the first bar and the second bar that are opposite to each other in the first direction. At least one first fracture is located on the first bar of a first metal frame, and at least another first fracture is located on the first bar or the second bar of another first metal frame. With such setting, the first fracture on the first metal frame is located on the first bar or the second bar which are opposite to each other in the first direction, which is conducive to reducing the display horizontal lines at a large viewing angle, to improve the display effect of the display panel.

Although some embodiments of the present disclosure are described in detail through some examples, the above examples are only for illustration and not intended to limit the scope of the present disclosure. The above embodiments may be modified without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the claims.