Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel comprises a display area and a frame area, the frame area comprises a first sub-frame area and a second sub-frame area, the first sub-frame area is located on the side, in the first direction, of the display area, and the second sub-frame area is located on the side, in the second direction, of the display area; the display panel comprises a substrate, a first shifting register, a first signal line and a first connecting line, the first shifting register, the first signal line and the first connecting line are located on one side of the substrate, the first shifting register is located in the first sub-frame area, the first signal line is electrically connected with the output end of the first shifting register, and the first connecting line extends to the display area from the first sub-frame area. And extending from the display area to the second sub-frame area. Therefore, according to the display panel and the display device provided by the invention, the narrow frame design of the display panel can be realized.

Description

Display panel and display device Technical Field

[0001] This application relates to the field of display technology, and in particular to a display panel and display device. Background Technology

[0002] OLED (Organic Light Emitting Diode) display panels have many advantages, such as being all-solid-state, actively emitting light, having a fast response time, high contrast, no viewing angle limitations, and being able to achieve flexible displays. They are a new type of display technology that was developed in the mid-20th century and are widely used in people's daily production and life.

[0003] In related technologies, a display panel includes a display area and a bezel area. The bezel area is located on the outer periphery of the display area, and a shift register and metal traces are disposed within the bezel area. One end of the metal traces is electrically connected to the shift register, and the other end is connected to a pad located in the bonding area. However, the aforementioned metal traces are not conducive to achieving a narrow bezel design for the display panel. Summary of the Invention

[0004] Therefore, it is necessary to provide a display panel and display device that facilitates the implementation of a narrow bezel design for the display panel.

[0005] In a first aspect, embodiments of this application provide a display panel, including a display area and a border area. The border area is located on the outer periphery of the display area and includes a first sub-border area and a second sub-border area. The first sub-border area is located on one side of the display area along a first direction, and the second sub-border area is located on one side of the display area along a second direction. The display panel includes a substrate, and a first shift register, a first signal line, and a first connection line located on one side of the substrate. The first shift register is located in the first sub-border area, the first signal line is electrically connected to the output terminal of the first shift register, and the first connection line includes a first sub-connection line and a second sub-connection line. The first sub-connection line extends at least partially along the first direction, and the second sub-connection line extends at least partially along the second direction. One end of the first sub-connection line is located in the first sub-border area and is electrically connected to the input terminal of the first shift register. The other end of the first sub-connection line is connected to one end of the second sub-connection line and is located in the display area. A portion of the second sub-connection line is located in the second sub-border area. Any two of the first direction, the second direction, and the thickness direction of the substrate intersect.

[0006] Secondly, embodiments of this application also provide a display device, including the display panel of the first aspect.

[0007] The display panel provided in this application extends the first connecting line to the display area via a first sub-connecting line, and then extends the first connecting line to the second sub-bezel area and the bonding area via a second sub-connecting line. That is, the first connecting line is connected to the connecting pad and the first shift register electrically without passing through the first arc area by means of jumper in the display area. Since the first connecting line is not set in the first arc area, it is beneficial to reduce the wiring space in the first arc area and to achieve a narrow bezel of the display panel. Attached Figure Description

[0008] Figure 1 is a top view of the display panel provided in the embodiment of this application when it is in a four-curved state.

[0009] Figure 2 is a top view of the display panel in the unfolded state provided in the embodiment of this application.

[0010] Figure 3 is a partial top view of the display panel in the unfolded state provided in the embodiment of this application.

[0011] Figure 4 is another partial top view of the display panel in the unfolded state provided in the embodiment of this application.

[0012] Figure 5 is another partial top view of the display panel in the unfolded state provided in the embodiment of this application.

[0013] Figure 6 is a cross-sectional view of the substrate along the BB direction in Figure 2.

[0014] Figure 7 is a cross-sectional view of the substrate along direction AA in Figure 1.

[0015] Figure 8 is an enlarged structural schematic diagram of the display panel in the sub-bending area of ​​Figure 6.

[0016] Figure 9 is a schematic diagram of the structure of the display device provided in the embodiment of this application.

[0017] Explanation of reference numerals in the attached figures:

[0018] 10. Display device; 100. Display panel; 100a. Display area; 101a. First sub-display area; 102a. Second sub-display area; 103a. Third sub-display area; 100b. Border area; 101b. First sub-border area; 102b. Second sub-border area; 103b. Third sub-border area; 104b. Fourth sub-border area; 100c. Sub-bending area; 100d. Sub-edge area; 101e. First curved area; 102e. Second curved area; 103a. e. Third arc-shaped area; 104e. Fourth arc-shaped area; 100f. Bending area; 100g. Binding area; 108. Signal line; 109. Shift register; 110. First signal line; 111. First sub-signal line; 112. Second sub-signal line; 113. Third sub-signal line; 114. Fourth sub-signal line; 115. Fifth sub-signal line; 120. Second signal line; 126. Sixth sub-signal line; 127. Seventh sub-signal line; 128. Eighth sub-signal line; 12 9. Ninth sub-signal line; 1210. Tenth sub-signal line; 130. Third signal line; 141. First connecting line; 1411. First sub-connecting line; 1412. Second sub-connecting line; 1413. Third sub-connecting line; 142. Second connecting line; 1424. Fourth sub-connecting line; 1425. Fifth sub-connecting line; 1426. Sixth sub-connecting line; 150. Array substrate; 151. Substrate; 152. Conductive layer; 1531. First planarization layer; 1532. ... Two planarization layers; 154, opening; 170, inorganic packaging layer; 181, driver chip; 182, connection pad; 191, first shift register; 192, second shift register; 193, third shift register; 194, fourth shift register; 195, fifth shift register; 196, sixth shift register; Q1, first tangent; Q2, second tangent; D1, first surface; D2, second surface; X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0019] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] When describing positional relationships, unless otherwise specified, when an element, such as a layer, film, or substrate, is referred to as being "on" another element, it may be directly on the other element or there may be intermediate elements present. Furthermore, when a layer is referred to as being "below" another layer, it may be directly below it or there may be one or more intermediate elements present. It is also understood that when a layer is referred to as being "between" two layers, it may be the only layer between the two layers, or there may be one or more intermediate elements present.

[0022] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0023] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this application, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0024] It should also be understood that, in interpreting an element, although not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of a particular value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0025] Furthermore, in the instruction manual, the phrase "planar distribution diagram" refers to the diagram when the target part is viewed from above, and the phrase "cross-sectional diagram" refers to the diagram when the target part is viewed from the side as a cross-section taken by vertically cutting the target part.

[0026] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0027] As described in the background section, in related technologies, a display panel includes a display area and a bezel area, with the bezel area located on the outer periphery of the display area. The bezel area is used to house shift registers, dams, package areas, and metal traces. The shift registers, dams, and at least a portion of the package area are arranged along the direction from the display area to the bezel area. The shift registers are connected to pads in the bonding area via metal traces, and signals are input to the shift registers via the pads. Some of the metal traces are located in the bezel area and extend to the bonding area through the left and right corners of the lower bezel. Since the shift registers, dams, and package areas all occupy a certain amount of design space, the required width of the bezel area is relatively large. Therefore, the four sides of the bezel area can be bent to reduce the size of the bezel area along the direction from the display area to the bezel area, i.e., to reduce the width of the bezel.

[0028] However, if the bezel area of ​​the display panel is bent to reduce the bezel width, the wiring space in the arc areas at the four corners of the display panel will be reduced. There is no design space in the arc areas at the four corners to set up the metal wiring. Therefore, the wiring of the metal wiring needs to be redesigned to meet the requirements of the narrow bezel.

[0029] Based on the above-mentioned technical problems, the inventors discovered that by using a jumper method in the display area, the first connecting line can electrically connect the connecting pad and the first shift register without passing through the first arc area. That is, the first connecting line is not set in the first arc area, which helps to reduce the wiring space in the first arc area and facilitates the realization of a narrow bezel on the display panel.

[0030] The above is the core idea of ​​this application. The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0031] The display panel and display device provided in the embodiments of this application will be described below with reference to Figures 1-9.

[0032] Referring to Figures 1 and 2, this embodiment of the application provides a display panel 100, which includes a display area 100a and a border area 100b, with the border area 100b located on the outer periphery of the display area 100a. The border area 100b includes a first sub-border area 101b and a second sub-border area 102b, where the first sub-border area 101b is located on one side of the display area 100a along a first direction X, and the second sub-border area 102b is located on one side of the display area 100a along a second direction Y.

[0033] Referring to Figure 1, in some embodiments, the border area 100b includes a third sub-border area 103b, which is located on the side of the display area 100a opposite to the first sub-border area 101b.

[0034] Referring to Figure 1, in some embodiments, the border area 100b includes a fourth sub-border area 104b, which is located on the side of the display area 100a opposite to the second sub-border area 102b.

[0035] Referring to Figure 2, the display panel 100 includes a substrate 151 (Figure 8), a first shift register 191, a first signal line 110, and a first connecting line 141. The substrate 151 provides support for the remaining film layers that are subsequently applied. The first shift register 191 is located on one side of the substrate 151 and is located in the first sub-bezel area 101b. The first signal line 110 is located on one side of the substrate 151 and is electrically connected to the output terminal of the first shift register 191. The first connecting line 141 is located on one side of the substrate 151. The connecting pad 182 inputs a signal to the first shift register 191 through the first connecting line 141, and the first shift register 191 inputs a signal to the light-emitting device through the first signal line 110.

[0036] Referring to Figure 2, the first connecting line 141 includes a first sub-connecting line 1411 and a second sub-connecting line 1412. The first sub-connecting line 1411 extends at least partially along a first direction X, and the second sub-connecting line 1412 extends at least partially along a second direction Y. One end of the first sub-connecting line 1411 is located in the first sub-border area 101b and is electrically connected to the input terminal of the first shift register 191. The other end of the first sub-connecting line 1411 is connected to one end of the second sub-connecting line 1412, and the other end of the first sub-connecting line 1411 is located in the display area 100a. A portion of the second sub-connecting line 1412 is located in the second sub-border area. 102b, Thus, the first connecting line 141 is extended to the display area 100a via the first sub-connecting line 1411, and then extended to the second sub-border area 102b and the binding area 100g via the second sub-connecting line 1412. That is, the first connecting line 141 is connected to the connecting pad 182 and the first shift register 191 via the display area jumper method, so that the first connecting line 141 does not need to pass through the first arc area 101e. Since the first connecting line 141 is not set in the first arc area 101e, it is beneficial to reduce the wiring space of the first arc area 101e, which is beneficial to realize the narrow border of the display panel 100.

[0037] Referring to Figure 1, the display panel 100 may have a first direction X, a second direction Y, and a third direction Z, all of which are different. The first direction X and the second direction Y can be any two different directions parallel to the display panel 100 of the display area, and the third direction Z can be any direction intersecting the plane of the display panel 100 parallel to the display area. For example, the first direction X, the second direction Y, and the third direction Z can be mutually perpendicular. Exemplarily, the first direction X can be the width direction of the display panel 100, the second direction Y can be the length direction of the display panel 100, and the third direction Z can be the thickness direction of the display panel 100. The length, width, and thickness in the embodiments of this application are merely for descriptive convenience and do not imply any limitation on the dimensions. For example, the width can be greater than, equal to, or less than the length. The orientation of the display panel 100 can be consistent with the orientation of the substrate 151.

[0038] Referring to Figure 2, in some embodiments, the first sub-connection line 1411 is located on the side of the first shift register 191 facing the display area 100a. In this way, the first sub-connection line 1411 will not occupy the space on the side of the first shift register 191 facing the second sub-border area 102b. This makes the total size of the first sub-border area 101b occupied by the first sub-connection line 1411 and the first shift register 191 along the second direction Y smaller, which is beneficial for setting more shift registers 109 in the first sub-border area 101b.

[0039] Referring to Figure 3, in some embodiments, the first connecting line 141 includes a third sub-connecting line 1413. The third sub-connecting line 1413 extends along the second direction Y and is located on the side of the first shift register 191 facing the second sub-border area 102b along the second direction Y. One end of the third sub-connecting line 1413 is electrically connected to the input terminal of the first shift register 191, and the other end of the third sub-connecting line 1413 is connected to the end of the first sub-connecting line 1411 away from the second sub-connecting line 1412. In this way, by setting the third sub-connecting line 1413, the first connecting line 141 is led out from the side of the first shift register 191 facing the second sub-border area 102b. When the first signal line 110 is led out from the side of the first shift register 191 facing the display area 100a, the first connecting line 141 and the first signal line 110 are led out from different sides of the first shift register 191, which can reduce the mutual interference between the first connecting line 141 and the first signal line 110.

[0040] For example, the number of first connection lines 141 connected to the first shift register 191 can be at least one. When the number of first connection lines 141 connected to the first shift register 191 is multiple, in any one of the first connection lines 141, the first connection line 141 may not have a third sub-connection line 1413, or the first connection line 141 may have a third sub-connection line 1413.

[0041] Referring to Figure 2, in some embodiments, the border area 100b includes a first arc-shaped area 101e, which is located between the first sub-border area 101b and the second sub-border area 102b. The first arc-shaped area 101e protrudes along the direction from the display area 100a to the border area 100b. In this way, the first sub-border area 101b and the second sub-border area 102b are connected by the first arc-shaped area 101e, making the transition between the first sub-border area 101b and the second sub-border area 102b more natural and gentle. The transition between the first sub-border area 101b and the second sub-border area 102b through the arc-shaped structure can better disperse the stress of the border area 100b compared to the transition through the right angle structure.

[0042] Referring to Figure 2, in some embodiments, the border area 100b includes a second arc-shaped area 102e, which is located on the side of the first sub-border area 101b away from the first arc-shaped area 101e. The second arc-shaped area 102e protrudes along the direction from the display area 100a to the border area 100b. In this way, the first sub-border area 101b and the fourth sub-border area 104b are connected by the second arc-shaped area 102e, making the transition between the first sub-border area 101b and the fourth sub-border area 104b more natural and gentle. The transition between the first sub-border area 101b and the fourth sub-border area 104b through the arc-shaped structure can better disperse the stress of the border area 100b compared to the transition through the right angle structure.

[0043] Referring to Figure 2, in some embodiments, the border area 100b includes a third arc-shaped area 103e, which is located between the fourth sub-border area 104b and the third sub-border area 103b. The third arc-shaped area 103e protrudes along the direction from the display area 100a to the border area 100b. In this way, the fourth sub-border area 104b and the third sub-border area 103b are connected by the third arc-shaped area 103e, making the transition between the fourth sub-border area 104b and the third sub-border area 103b more natural and gentle. Compared with the transition through a right angle structure, the arc-shaped structure of the fourth sub-border area 104b and the third sub-border area 103b can better disperse the stress of the border area 100b.

[0044] Referring to Figure 2, in some embodiments, the border area 100b includes a fourth arc-shaped area 104e, which is located between the second sub-border area 102b and the third sub-border area 103b. The fourth arc-shaped area 104e protrudes along the direction from the display area 100a to the border area 100b. In this way, the second sub-border area 102b and the third sub-border area 103b are connected by the fourth arc-shaped area 104e, making the transition between the second sub-border area 102b and the third sub-border area 103b more natural and gentle. Compared with the transition through a right angle structure, the arc-shaped structure of the second sub-border area 102b and the third sub-border area 103b can better disperse the stress of the border area 100b.

[0045] Referring to Figure 2, in some embodiments, the display area 100a includes a first sub-display area 101a and a second sub-display area 102a connected together. The second sub-display area 102a is located on the side of the first sub-display area 101a opposite to the second sub-border area 102b. At least a portion of the first sub-display area 101a and the first arc-shaped area 101e are arranged adjacent to each other along a first direction X. The first sub-border area 101b and the second sub-display area 102a are arranged adjacent to each other along the first direction X. The shift register 109 may be disposed in at least one of the first sub-border area 101b and the third sub-border area 103b.

[0046] Referring to Figure 2, in some embodiments, the display area 100a includes a third sub-display area 103a, which is located on the side of the second sub-display area 102a away from the first sub-display area 101a. At least a portion of the third sub-display area 103a and the second arcuate area 102e are arranged adjacent to each other along the first direction X.

[0047] In some embodiments, the display panel 100 may include light-emitting devices, which may be located on one side of the array substrate 150 (FIG. 8). The light-emitting devices may be located in display area 100a. The light-emitting devices may be located in a first sub-display area 101a, a second sub-display area 102a, and a third sub-display area 103a. There may be multiple light-emitting devices. For example, multiple light-emitting devices may be arranged in an array. The multiple light-emitting devices may include a first light-emitting device, a second light-emitting device, and a third light-emitting device that emit different colors. The multiple light-emitting devices include, but are not limited to, red light-emitting devices, green light-emitting devices, and blue light-emitting devices. In other examples, the multiple light-emitting devices may also include white light-emitting devices.

[0048] For example, multiple light-emitting devices are arranged in multiple rows along a second direction Y, and a single row of light-emitting devices includes multiple light-emitting devices arranged along a first direction X. Signal lines 108 can be electrically connected to the light-emitting devices. A row of light-emitting devices can be correspondingly configured with at least one signal line 108. For example, a row of light-emitting devices can be correspondingly configured with multiple signal lines 108, and each row of light-emitting devices can be electrically connected to all corresponding signal lines 108. In the corresponding row of light-emitting devices and multiple signal lines 108, the multiple signal lines 108 can include a first scan line signal line (Scan1), a second scan line signal line (Scan2), and a light emission control signal line (Emit). A row of light-emitting devices can be electrically connected to a corresponding shift register 109 via the corresponding signal line 108.

[0049] Referring to Figures 2 and 4, in some embodiments, the first shift register 191 is located at one end of the first sub-border area 101b along the second direction Y, close to the second sub-border area 102b. This makes the first shift register 191 closer to the connecting pad 182, which helps to shorten the first connecting line 141. The first signal line 110 includes a first sub-signal line 111, a second sub-signal line 112, and a third sub-signal line 113 connected end to end in sequence. The first sub-signal line 111 and the third sub-signal line 113 extend along the first direction X, and the second sub-signal line 112 extends along the second direction Y. The first sub-signal line 111 is located in the second sub-display area 102a and the first sub-border area 101b, and the first sub-signal line 111 is electrically connected to the output terminal of the first shift register 191. The third sub-signal line 113 is located in the first sub-display area 101a. The third sub-signal line 113 located in the first sub-display area 101a can be electrically connected to the light-emitting device located in the first sub-display area 101a. The second sub-signal line 112 is located in the first sub-display area 101a and the second sub-display area 102a. Thus, the third sub-signal line 113 located in the first sub-display area 101a and the first sub-signal line 111 located in the second sub-display area 102a can be connected through the second sub-signal line 112, so as to electrically connect the first shift register 191 located in the first sub-border area 101b and the light-emitting device in the first sub-display area 101a.

[0050] Referring to Figures 2 and 4, in some embodiments, the first signal line 110 further includes a fourth sub-signal line 114 and a fifth sub-signal line 115. The fourth sub-signal line 114 extends along a second direction Y, and the fifth sub-signal line 115 extends at least partially along a first direction X. The fifth sub-signal line 115 is located in the second sub-display area 102a and the third sub-border area 103b. The two ends of the fourth sub-signal line 114 are respectively connected to one end of the third sub-signal line 113 away from the second sub-signal line 112 and one end of the fifth sub-signal line 115. The fourth sub-signal line 114 is located in the first sub-display area 101a and the second sub-display area 102a. Thus, the third sub-signal line 113 located in the first sub-display area 101a and the fifth sub-signal line 115 located in the second sub-display area 102a can be connected through the fourth sub-signal line 114 to electrically connect the fourth shift register 194 located in the third sub-border area 103b and the light-emitting device located in the first sub-display area 101a.

[0051] Referring to Figures 2 and 5, in some embodiments, the display panel 100 includes a second shift register 192 located in a first sub-bezel area 101b. The second shift register 192 is located at one end of the first sub-bezel area 101b away from the second sub-bezel area 102b along a second direction Y. The display panel 100 includes a second signal line 120, which is electrically connected to the output of the second shift register 192. The second signal line 120 includes a sixth sub-signal line 126, a seventh sub-signal line 127, and an eighth sub-signal line 128 connected end to end in sequence. The sixth sub-signal line 126 and the eighth sub-signal line 128 extend at least partially along a first direction X. The seventh sub-signal line 127 extends along a second direction Y. The sixth sub-signal line 126 is located in the second sub-display area 102a and the first sub-bezel area 101b, and is electrically connected to the output of the second shift register 192. The eighth sub-signal line 128 is located in the third sub-display area 103a. The eighth sub-signal line 128 located in the third sub-display area 103a can be electrically connected to the light-emitting device located in the third sub-display area 103a. The seventh sub-signal line 127 is located in the third sub-display area 103a and the second sub-display area 102a. Thus, the eighth sub-signal line 128 located in the third sub-display area 103a and the sixth sub-signal line 126 located in the second sub-display area 102a can be connected through the seventh sub-signal line 127 to facilitate the electrical connection between the second shift register 192 located in the first sub-border area 101b and the light-emitting device located in the third sub-display area 103a.

[0052] Referring to Figures 2 and 5, in some embodiments, the second signal line 120 further includes a ninth sub-signal line 129 and a tenth sub-signal line 1210. The ninth sub-signal line 129 extends along a second direction Y, and the tenth sub-signal line 1210 extends at least partially along a first direction X. The tenth sub-signal line 1210 is located in the second sub-display area 102a and the third sub-border area 103b. The two ends of the ninth sub-signal line 129 are respectively connected to one end of the eighth sub-signal line 128 away from the seventh sub-signal line 127 and one end of the tenth sub-signal line 1210. The ninth sub-signal line 129 is located in the third sub-display area 103a and the second sub-display area 102a. Thus, the eighth sub-signal line 128 located in the third sub-display area 103a and the tenth sub-signal line 1210 located in the second sub-display area 102a can be connected through the ninth sub-signal line 129, so as to electrically connect the fifth shift register 195 located in the third sub-border area 103b and the light-emitting device located in the third sub-display area 103a.

[0053] For example, the light-emitting devices located in the first sub-display area 101a can be at least one row. When there are multiple rows of light-emitting devices in the first sub-display area 101a, the multiple rows of light-emitting devices in the first sub-display area 101a can correspond to multiple first shift registers 191, and the first shift register 191 closest to the second sub-border area 102b can be connected to the first connecting line 141. In addition, the multiple rows of light-emitting devices in the first sub-display area 101a can correspond to multiple fourth shift registers 194, and the fourth shift register 194 closest to the second sub-border area 102b can be connected to the second connecting line 142.

[0054] In some embodiments, a plurality of shift registers 109 are provided in the first sub-border area 101b. In the first sub-border area 101b, the plurality of shift registers 109 are arranged along the second direction Y. Two adjacent shift registers 109 can be electrically connected. In this way, by simply connecting the first connecting line 141 to the shift register 109 closest to the second sub-border area 102b, signals can be input to all shift registers 109 located in the first sub-border area 101b through the first connecting line 141.

[0055] In some embodiments, a plurality of shift registers 109 are provided in the third sub-border area 103b. In the third sub-border area 103b, the plurality of shift registers 109 are arranged along the second direction Y. Two adjacent shift registers 109 can be electrically connected. In this way, by simply connecting the second connecting line 142 to the shift register 109 closest to the second sub-border area 102b, signals can be input to all shift registers 109 located in the third sub-border area 103b through the second connecting line 142.

[0056] Among them, any one of the first shift register 191, the second shift register 192, the third shift register 193, the fourth shift register 194, the fifth shift register 195 and the sixth shift register 196 is shift register 109.

[0057] Referring to Figure 2, in some embodiments, the display panel 100 includes a plurality of third shift registers 193 located in the first sub-bezel area 101b. The plurality of third shift registers 193 are arranged along the second direction Y, with at least a portion of the third shift registers 193 located in the middle of the first sub-bezel area 101b along the second direction Y. The display panel 100 includes a plurality of third signal lines 130, which are correspondingly arranged with the plurality of third shift registers 193. The third signal lines 130 are electrically connected to the output terminals of the corresponding third shift registers 193, and at least a portion of the third signal lines 130 extend along the first direction X. Thus, by extending at least a portion of the third signal lines 130 along the first direction X, the shape of the third signal lines 130 is relatively simple, reducing the fabrication difficulty of the third signal lines 130. The third signal lines 130 can be electrically connected to the light-emitting devices located in the second sub-display area 102a.

[0058] Among them, the signal line 108 connected to the light-emitting device located in the first sub-display area 101a is the first signal line 110, the signal line 108 connected to the light-emitting device located in the third sub-display area 103a is the second signal line 120, and the signal line 108 connected to the light-emitting device located in the second sub-display area 102a is the third signal line 130.

[0059] Referring to Figure 2, in some embodiments, the display panel 100 includes a fourth shift register 194 and a second connection line 142. The second connection line 142 includes a fourth sub-connection line 1424 and a fifth sub-connection line 1425. The fourth sub-connection line 1424 extends at least partially along a first direction X, and the fifth sub-connection line 1425 extends at least partially along a second direction Y. One end of the fourth sub-connection line 1424 is located in a third sub-bezel area 103b, and one end of the fourth sub-connection line 1424 is electrically connected to the input terminal of the fourth shift register 194. The other end of the fourth sub-connection line 1424 is connected to one end of the fifth sub-connection line 1425, and the other end of the fourth sub-connection line 1424 is located in the display area 100a. Part of the fifth sub-connection line 1425 is located in the second sub-bezel area 102b. Thus, the second connecting line 142 is extended to the display area 100a via the fourth sub-connecting line 1424, and the first connecting line 141 is extended to the second sub-bezel area 102b and the bonding area 100g via the fifth sub-connecting line 1425. That is, the second connecting line 142 is connected to the connecting pad 182 and the fourth shift register 194 via the display area jumper method, so that the second connecting line 142 does not need to pass through the fourth arc area 104e. Since the second connecting line 142 is not set in the fourth arc area 104e, it is beneficial to reduce the wiring space of the second arc area 102e, which is beneficial to achieving a narrow bezel of the display panel 100.

[0060] Referring to Figure 3, in some embodiments, the second connection line 142 includes a sixth sub-connection line 1426. The sixth sub-connection line 1426 extends along the second direction Y and is located on the side of the fourth shift register 194 facing the second sub-border area 102b along the second direction Y. One end of the sixth sub-connection line 1426 is electrically connected to the input terminal of the fourth shift register 194, and the other end of the sixth sub-connection line 1426 is connected to the end of the fourth sub-connection line 1424 away from the fifth sub-connection line 1425. In this way, by setting the sixth sub-connection line 1426, the second connection line 142 is led out from the side of the fourth shift register 194 facing the second sub-border area 102b. When the first signal line 110 is led out from the side of the fourth shift register 194 facing the display area 100a, the second connection line 142 and the first signal line 110 are led out from different sides of the fourth shift register 194, which can reduce the mutual interference between the second connection line 142 and the first signal line 110.

[0061] Referring to Figure 2, in the embodiment where the display panel 100 includes a first shift register 191, a fourth shift register 194, and a first signal line 110, the two ends of the first signal line 110 are electrically connected to the output terminals of the corresponding first shift register 191 and the corresponding fourth shift register 194, respectively. This allows the first shift register 191 and the fourth shift register 194 to input signals from both ends of the first signal line 110, so as to input signals from both sides to a row of light-emitting devices located in the first sub-display area 101a. This can improve the uniformity of signal transmission and avoid signal delay or attenuation problems caused by single-sided input.

[0062] Referring to Figure 2, in the embodiment where the display panel 100 includes a second shift register 192, a fifth shift register 195, and a second signal line 120, the fifth shift register 195 is located at one end of the third sub-bezel area 103b along the second direction Y away from the second sub-bezel area 102b. The two ends of the second signal line 120 are electrically connected to the output terminals of the corresponding second shift register 192 and the corresponding fifth shift register 195, respectively. In this way, the second shift register 192 and the fifth shift register 195 can input signals from both ends of the second signal line 120, so as to input signals from both sides to a row of light-emitting devices located in the third sub-display area 103a, which can improve the uniformity of signal transmission and avoid signal delay or attenuation problems caused by single-sided input.

[0063] Referring to Figure 2, in an embodiment where the display panel 100 includes multiple third shift registers 193, multiple sixth shift registers 196, and multiple third signal lines 130, any two of the third shift registers 193, sixth shift registers 196, and third signal lines 130 are correspondingly arranged. At least a portion of the sixth shift registers 196 are located in the middle of the third sub-border area 103b along the second direction Y. The two ends of the third signal line 130 are electrically connected to the output terminals of the corresponding third shift register 193 and the corresponding sixth shift register 196, respectively. In this way, the third shift registers 193 and sixth shift registers 196 can input signals from both ends of the third signal line 130, so as to input signals from both sides to a row of light-emitting devices located in the second sub-display area 102a, which can improve the uniformity of signal transmission and avoid signal delay or attenuation problems caused by single-sided input.

[0064] Referring to Figures 2, 6, and 7, in some embodiments, the substrate 151 includes a first surface D1 and a second surface D2 disposed opposite to each other, and a first connecting line 141 is located on the side of the first surface D1 away from the second surface D2. For example, the first connecting line 141 may be located in the second conductive layer M2. The first sub-bezel area 101b includes a sub-bending area 100c and a sub-edge area 100d. The sub-bending area 100c is located between the sub-edge area 100d and the display area 100a. The display panel 100 of the sub-bending area 100c protrudes along the direction from the second surface D2 to the first surface D1, and the shift register 109 is located in the sub-edge area 100d. In this way, the sub-bending area 100c can be bent, which can reduce the width of the first sub-bezel area 101b, thereby facilitating the realization of a narrow bezel design. The bending shape of the display panel and the bending shape of the substrate may be consistent.

[0065] For example, the sub-bending region 100c may be an arc shape that protrudes along the direction from the second surface D2 to the first surface D1.

[0066] For example, the sub-edge region 100d can be an arc shape protruding along the direction from the second surface D2 to the first surface D1, or the sub-edge region 100d can be a straight line. When the sub-edge region 100d is arc-shaped, the curvature of the sub-edge region 100d is less than the curvature of the sub-bending region 100c, that is, the degree of bending of the sub-edge region 100d is less than the degree of bending of the sub-bending region 100c.

[0067] In some embodiments, the shift register 109 located in the first sub-border area 101b can be disposed in the sub-edge area 100d, that is, the shift register 109 is disposed in the sub-edge area 100d with a smaller degree of curvature, which helps to reduce the bending stress on the shift register 109.

[0068] In some embodiments, the dam, encapsulation area, etc., can all be located in the sub-edge area 100d. The dam can be used to prevent the organic encapsulation layer from overflowing from the display area to the border area.

[0069] Referring to Figure 7, in some embodiments, along a cross section perpendicular to the thickness direction of the substrate 151 (i.e., the third direction Z), the cross section of the first surface D1 of the sub-bending region 100c is an arc. The endpoint of the arc near the display area 100a has a first tangent Q1, and the endpoint of the arc away from the display area 100a has a second tangent Q2. The angle β between the first tangent Q1 and the second tangent Q2 is greater than or equal to 90°, that is, the bending angle of the sub-bending region 100c is less than or equal to 90°. Thus, the bending angle of the sub-bending region 100c is limited to a small angle by the angle between the first tangent Q1 and the second tangent Q2, making the transition of the sub-bending region 100c smoother, reducing the bending stress on each film layer of the sub-bending region 100c, and avoiding the phenomenon of film layer cracking and peeling caused by excessive bending of the sub-bending region 100c. This is beneficial to ensuring the structural stability of the display panel 100 after bending. The bending angle of the sub-bending area 100c is the angle at which the sub-bending area is bent relative to the display area.

[0070] In some embodiments, the third sub-border area 103b may include a sub-bending area 100c and a sub-edge area 100d. In the third sub-border area 103b, the sub-bending area 100c is located between the sub-edge area 100d and the display area 100a. The display panel 100 of the sub-bending area 100c protrudes along the direction from the second surface D2 to the first surface D1. The shift register 109 located in the third sub-border area 103b is disposed in the sub-edge area 100d of the third sub-border area 103b. Thus, disposing of the shift register 109 in the sub-edge area 100d, where the degree of bending is smaller, helps to reduce the bending stress on the shift register 109. The principle has been explained and will not be repeated here.

[0071] In some embodiments, the fourth sub-border area 104b may include a sub-bending area 100c and a sub-edge area 100d. In the fourth sub-border area 104b, the sub-bending area 100c is located between the sub-edge area 100d and the display area 100a, and the display panel 100 of the sub-bending area 100c protrudes along the direction from the second surface D2 to the first surface D1.

[0072] It should be noted that any one of the first arc region 101e, the second arc region 102e, the third arc region 103e, and the fourth arc region 104e may also be provided with a sub-bending region 100c and a sub-edge region 100d.

[0073] Referring to Figure 2, in some embodiments, the display panel 100 includes a bending area 100f and a bonding area 100g. The bending area 100f is located on the side of the second sub-bezel area 102b opposite to the display area 100a. The bending area 100f can be bent. By bending the bending area 100f, the bonding area 100g can be positioned on the backlight side of the display panel 100 of the display area 100a, thereby achieving a narrow bezel design. The bonding area 100g may be provided with a driver chip 181 and a connecting pad 182. The connecting pad 182 is located on the side of the driver chip 181 opposite to the bending area 100f.

[0074] It should be noted that the first sub-bezel area 101b, the third sub-bezel area 103b, and the fourth sub-bezel area 104b are all bent through the sub-bending area 100c. Furthermore, by setting the bending area 100f, a narrow bezel design on all four sides of the display panel can be achieved. In the quad-curved display panel, the dimensions (i.e., widths) of any two of the first sub-bezel areas 101b, the second sub-bezel area 102b, the third sub-bezel area 103b, and the fourth sub-bezel area 104b along the direction from the display area to the bezel area can be the same or different.

[0075] Referring to Figures 2 and 8, in some embodiments, the display panel 100 includes a conductive layer 152 located in the border area 100b and the display area 100a. A first connecting line 141 is located in the conductive layer 152. At least one inorganic encapsulation layer 170 is provided on the side of the conductive layer 152 located in the sub-bending area 100c that is away from the substrate 151. The inorganic encapsulation layer 170 can isolate moisture, oxygen, etc. By covering the side of the conductive layer 152 located in the sub-bending area 100c that is away from the substrate 151 with the inorganic encapsulation layer 170, the conductive layer 152 located in the sub-bending area 100c can be prevented from being corroded by water and oxygen, thereby improving the electrical reliability of the conductive layer 152. Furthermore, since the angle between the first tangent Q1 and the second tangent Q2 (Figure 7) is greater than or equal to 90°, the curvature of the sub-bending region 100c is smaller. The inorganic encapsulation layer 170, which has weak resistance to bending deformation, is placed in the sub-bending region 100c. When the sub-bending region 100c is bent, the deformation of the inorganic encapsulation layer 170 is smaller and it is not easy to crack or peel off. This allows the inorganic encapsulation layer 170 to adhere stably and play a protective role. Therefore, the reduced bending degree of the sub-bending region 100c provides a feasible basis for the placement of the inorganic encapsulation layer 170.

[0076] For example, the number of inorganic encapsulation layers 170 on the side of the conductive layer 152 located in the sub-bending region 100c away from the substrate 151 can be any number of 1, 2 or more layers.

[0077] In some embodiments, the number of inorganic encapsulation layers 170 is at least two, and the at least two inorganic encapsulation layers 170 include a first inorganic encapsulation layer and a second inorganic encapsulation layer.

[0078] For example, the inorganic encapsulation layer 170 is made of inorganic materials. Inorganic materials have a good barrier effect against water vapor and oxygen, thus achieving a good encapsulation effect. For example, it can be prepared using deposition processes, such as atomic layer deposition (ALD), physical vapor deposition (PVD), or chemical vapor deposition (CVD).

[0079] In some embodiments, the display panel 100 includes an organic encapsulation layer, which may be located between a first inorganic encapsulation layer 170 and a second inorganic encapsulation layer 170. The organic encapsulation layer uses organic materials, which helps to alleviate stress in the film layer, and may be prepared by, for example, coating, inkjet printing or other methods.

[0080] The array substrate 150 provided in the embodiments of this application will be described below.

[0081] Referring to Figure 8, the array substrate 150 may include a semiconductor layer and a multilayer conductive layer 152 stacked along a direction away from the substrate 151. The multilayer conductive layer 152 may include a first conductive layer, a second conductive layer M2, a third conductive layer, and a fourth conductive layer stacked along a direction away from the substrate 151. An insulating layer may be disposed between each adjacent pair of the semiconductor layer, the first conductive layer, the second conductive layer M2, the third conductive layer, and the fourth conductive layer. The materials of any two insulating layers may be the same or different.

[0082] For example, the multilayer insulating layer in the array substrate 150 may include a first planarization layer 1531 and a second planarization layer 1532. The first planarization layer 1531 is located on the side of the second planarization layer 1532 facing the substrate 151, and the second conductive layer M2 is located between the first planarization layer 1531 and the second planarization layer 1532. The inorganic encapsulation layer 170 is located on the side of the second planarization layer 1532 facing away from the substrate 151. The materials of the first planarization layer 1531 and the second planarization layer 1532 may include organic materials. A multilayer insulating layer made of inorganic material may also be disposed between the substrate 151 and the second conductive layer M2. At least a portion of the insulating layer made of inorganic material located in the sub-bending region 100c can be removed to form an opening 154, in which the first planarization layer 1531 can be disposed. Thus, the insulating layer formed by at least a portion of the inorganic material located in the sub-bending region 100c is removed and filled with a first planarization layer 1531 made of organic material. The first planarization layer 1531 made of organic material can buffer the bending stress of the sub-bending region 100c during bending, which helps to alleviate the bending stress on the film layer of the sub-bending region 100c and prevent phenomena such as film layer cracking and peeling in the sub-bending region 100c.

[0083] For example, the semiconductor layer may include the active layer of a transistor.

[0084] For example, the first conductive layer may include at least one of a first scan signal line, a second scan signal line, a first electrode of a capacitor structure, a light emission control signal line, and the gates of a plurality of transistors. The second conductive layer may include a reference line and a second electrode of a capacitor structure. The third conductive layer may include at least one of the source and drain electrodes of a transistor and a power supply line. The fourth conductive layer may include at least one of a data line and a power supply line.

[0085] For example, at least one of the first connection line 141 and the second connection line 142 may be located in a different conductive layer from the signal line 108 (including the first scan signal line, the second scan signal line and the light emission control signal line).

[0086] For example, either the first connecting line 141 or the second connecting line 142 may be formed by at least one conductive layer 152. For instance, either the first connecting line 141 or the second connecting line 142 may be located in the second conductive layer M2.

[0087] For example, the display panel 100 may include an organic light-emitting diode (OLED) display panel, a quantum dot light-emitting diode (QLED) display panel, a mini light-emitting diode (Mini LED) display, or a micro light-emitting diode (MicroLED) display, etc. This application embodiment uses an OLED display panel as an example for illustration.

[0088] The display device 10 provided in the embodiments of this application will be described below.

[0089] Referring to Figure 9, an embodiment of this application provides a display device 10, which includes the display panel 100 in any of the above embodiments. Therefore, the display device 10 also has the beneficial effects of the display panel 100 in the above embodiments. The similarities can be understood by referring to the explanation of the display panel 100 above, and will not be repeated here.

[0090] For example, the display device 10 can be a mobile phone or any electronic product with display function, including but not limited to the following categories: television, laptop, desktop monitor, tablet computer, digital camera, smart bracelet, smart glasses, vehicle display, industrial control equipment, medical display screen, touch interactive terminal, etc. This application embodiment does not make any special limitation in this regard.

[0091] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0092] The embodiments described above are merely examples of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application.

Claims

1. A display panel, characterized in that, include: The display panel includes a display area and a border area. The border area is located on the outer periphery of the display area. The border area includes a first sub-border area and a second sub-border area. The first sub-border area is located on one side of the display area along a first direction, and the second sub-border area is located on one side of the display area along a second direction. The display panel includes: a substrate; a first shift register located on one side of the substrate and in the first sub-border area; a first signal line located on one side of the substrate and electrically connected to the output terminal of the first shift register; and a first connecting line located on one side of the substrate. The first connecting line includes a first sub-connecting line and a second sub-connecting line. The first sub-connecting line extends at least partially along the first direction, and the second sub-connecting line extends at least partially along the second direction. One end of the first sub-connecting line is located in the first sub-border area and electrically connected to the input terminal of the first shift register. The other end of the first sub-connecting line is connected to one end of the second sub-connecting line and is located in the display area. A portion of the second sub-connecting line is located in the second sub-border area. Any two of the first direction, the second direction, and the thickness direction of the substrate intersect.

2. The display panel according to claim 1, characterized in that, The first sub-connection line is located on the side of the first shift register facing the display area; or, the first connection line includes a third sub-connection line, the third sub-connection line extends along the second direction and is located on the side of the first shift register facing the second sub-border area along the second direction, one end of the third sub-connection line is electrically connected to the input terminal of the first shift register, and the other end of the third sub-connection line is connected to the end of the first sub-connection line opposite to the second sub-connection line.

3. The display panel according to claim 1, characterized in that, The border area includes a first arc-shaped area, which is located between the first sub-border area and the second sub-border area. The first arc-shaped area protrudes along the direction from the display area to the border area. The display area includes a first sub-display area and a second sub-display area connected together. The second sub-display area is located on the side of the first sub-display area away from the second sub-border area. The first sub-display area and the first arc-shaped area are arranged adjacent to each other along the first direction. The first sub-border area and the second sub-display area are arranged adjacent to each other along the first direction.

4. The display panel according to claim 3, characterized in that, The first shift register is located at one end of the first sub-border area along the second direction, close to the second sub-border area; the first signal line includes a first sub-signal line, a second sub-signal line, and a third sub-signal line connected end to end in sequence, the first sub-signal line and the third sub-signal line extend at least partially along the first direction, the second sub-signal line extends along the second direction, the first sub-signal line is located in the second sub-display area and the first sub-border area, and is electrically connected to the output terminal of the first shift register, and the third sub-signal line is located in the first sub-display area.

5. The display panel according to claim 4, characterized in that, The border area includes a third sub-border area, which is located on the side of the display area opposite to the first sub-border area; the first signal line also includes a fourth sub-signal line and a fifth sub-signal line, the fourth sub-signal line extending along the second direction, and the fifth sub-signal line extending at least partially along the first direction and located in the second sub-display area and the third sub-border area; the two ends of the fourth sub-signal line are respectively connected to the end of the third sub-signal line opposite to the second sub-signal line and the end of the fifth sub-signal line.

6. The display panel according to any one of claims 3-5, characterized in that, The border area includes a second arc-shaped area, which is located on the side of the first sub-border area away from the first arc-shaped area, and the second arc-shaped area protrudes along the direction from the display area to the border area; the display area includes a third sub-display area, which is located on the side of the second sub-display area away from the first sub-display area, and the third sub-display area and the second arc-shaped area are arranged adjacent to each other along the first direction.

7. The display panel according to claim 6, characterized in that, The display panel includes a second shift register located in the first sub-bezel area, the second shift register being located at one end of the first sub-bezel area away from the second sub-bezel area along the second direction; the display panel includes a second signal line electrically connected to the output terminal of the second shift register, the second signal line including a sixth sub-signal line, a seventh sub-signal line, and an eighth sub-signal line connected end to end in sequence, the sixth sub-signal line extending at least partially along the first direction and the eighth sub-signal line extending along the second direction, the seventh sub-signal line extending along the second direction, the sixth sub-signal line being located in the second sub-display area and the first sub-bezel area and electrically connected to the output terminal of the second shift register, and the eighth sub-signal line being located in the third sub-display area.

8. The display panel according to claim 7, characterized in that, The border area includes a third sub-border area, which is located on the side of the display area opposite to the first sub-border area; the second signal line also includes a ninth sub-signal line and a tenth sub-signal line, the ninth sub-signal line extending along the second direction, and the tenth sub-signal line extending at least partially along the first direction and located in the second sub-display area and the third sub-border area; the two ends of the ninth sub-signal line are respectively connected to the end of the eighth sub-signal line opposite to the seventh sub-signal line and the end of the tenth sub-signal line.

9. The display panel according to any one of claims 1-5, characterized in that, The display panel includes a plurality of third shift registers located in the first sub-bezel area, the plurality of third shift registers being arranged along the second direction, and at least a portion of the third shift registers being located in the middle of the first sub-bezel area along the second direction; the display panel includes a plurality of third signal lines, the plurality of third signal lines being correspondingly arranged with the plurality of third shift registers, the third signal lines being electrically connected to the output terminals of the corresponding third shift registers, and at least a portion of the third signal lines extending along the first direction.

10. The display panel according to any one of claims 1-5, characterized in that, The border area includes a third sub-border area, which is located on the side of the display area opposite to the first sub-border area. The display panel includes a fourth shift register and a second connection line. The second connection line includes a fourth sub-connection line and a fifth sub-connection line. The fourth sub-connection line extends at least partially along a first direction, and the fifth sub-connection line extends at least partially along a second direction. One end of the fourth sub-connection line is located in the third sub-border area and is electrically connected to the input terminal of the fourth shift register. The other end of the fourth sub-connection line is connected to one end of the fifth sub-connection line and is located in the display area. Part of the fifth sub-connection line is located in the second sub-border area.

11. The display panel according to claim 10, characterized in that, The two ends of the first signal line are electrically connected to the output terminals of the first shift register and the fourth shift register, respectively; and / or, the display panel includes a second shift register, a fifth shift register, and a second signal line, wherein the fifth shift register is located at one end of the third sub-border area away from the second sub-border area along the second direction, and the two ends of the second signal line are electrically connected to the output terminals of the second shift register and the fifth shift register, respectively; and / or, the display panel includes a plurality of third shift registers, a plurality of sixth shift registers, and a plurality of third signal lines, wherein any two of the third shift registers, the sixth shift registers, and the third signal lines are correspondingly arranged, at least a portion of the sixth shift registers are located in the middle of the third sub-border area along the second direction, and the two ends of the third signal line are electrically connected to the output terminals of the corresponding third shift register and the corresponding sixth shift register, respectively.

12. The display panel according to any one of claims 1-5, characterized in that, The substrate includes a first surface and a second surface disposed opposite to each other, the first connecting line is located on the side of the first surface away from the second surface; the first sub-frame area includes a sub-bending area and a sub-edge area, the sub-bending area is located between the sub-edge area and the display area, the display panel of the sub-bending area protrudes along the direction from the second surface to the first surface, and the first shift register is located in the sub-edge area.

13. The display panel according to claim 12, characterized in that, A cross-section perpendicular to the thickness direction of the substrate, the cross-section of the first surface located in the sub-bending area is an arc, the endpoint of the arc near the display area has a first tangent, the endpoint of the arc away from the display area has a second tangent, and the angle between the first tangent and the second tangent is greater than or equal to 90°.

14. The display panel according to claim 12, characterized in that, The display panel includes a conductive layer located in the frame area and the display area. The first connecting line is located in the conductive layer. At least one inorganic encapsulation layer is provided on the side of the conductive layer located in the sub-bending area away from the substrate.

15. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 14.

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