Display panel, display apparatus, and refreshing method

Abstract

The present application relates to the technical field of display, and discloses a display panel, a display apparatus, and a refreshing method. The display panel comprises: a bending region, and a display region and a non-bending region located at two sides of the bending region. The display region comprises at least one column refresh signal line. The non-bending region comprises at least one column refresh input line and at least one column refresh circuit, the column refresh input line being coupled to the column refresh circuit in a one-to-one correspondence. During implementation, the column refresh circuit is configured to provide a refresh control signal to the column refresh input line in response to a signal of a refresh signal end, and one column refresh input line passes through the bending region to be coupled to the at least one column refresh signal line. In the described solution in which the at least one column refresh circuit is disposed in the non-bending region, the length of a lower frame formed between the display region and the bending region is shortened, so that a display effect is better.

Description

Display panel, display device and refresh method

[0001] Cross-reference to related applications

[0002] The present application claims priority to the Chinese patent application No. 202410666415.6, filed on May 27, 2024, and entitled "Display panel, display device and refresh method", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of display, and provides a display panel, a display device and a refresh method. BACKGROUND

[0004] In the field of display, in order to realize local refresh in a display panel, in addition to increasing a row refresh circuit, a column refresh circuit also needs to be added. In the related art, the added column refresh circuit is usually placed below the display area and above the bending area. In this way, the length of the lower frame formed between the lower edge of the display area and the bending line of the bending area will be increased accordingly, resulting in a longer length of the lower frame. SUMMARY

[0005] The present application provides a display panel, a display device and a refresh method, which shorten the length of the lower frame formed between the display area and the bending area by arranging the column refresh circuit in the non-bending area, thereby improving the display effect.

[0006] The specific technical solutions provided by the present application are as follows:

[0007] In a first aspect, the present application provides a display panel, comprising: a bending area and display areas and a non-bending area located on both sides of the bending area.

[0008] The display area comprises at least one column refresh signal line.

[0009] The non-bending area comprises at least one column refresh input line and at least one column refresh circuit, wherein the column refresh input line is one-to-one coupled with the column refresh circuit, and the column refresh circuit is configured to provide a refresh control signal to the column refresh input line in response to a signal of a refresh signal end.

[0010] One column refresh input line is coupled with at least one column refresh signal line through the bending area.

[0011] Optionally, a plurality of refresh groups are further included, each refresh group comprising at least two adjacent column refresh signal lines, and the column refresh signal lines in each refresh group are connected with the same column refresh fan-out line.

[0012] Optionally, the bending area comprises a plurality of column refresh switching lines.

[0013] The column refresh switching line is arranged between the column refresh input line and the column refresh signal line.

[0014] The column refresh input line, the column refresh switching line and the column refresh signal line are one-to-one coupled.

[0015] Optionally, the display area further comprises a fan-out area, the fan-out area being located between the display area and the bending area.

[0016] The fan-out area comprises a column refresh fan-out line.

[0017] The column refresh fan-out line is arranged between the column refresh switching line and the column refresh signal line.

[0018] The column refresh switching line, the column refresh fan-out line and the column refresh signal line are one-to-one coupled.

[0019] Optionally, the display area further comprises a data line.

[0020] Each refresh group is provided with a data line on each side.

[0021] Optionally, at least two data lines are arranged between the two refresh groups.

[0022] Optionally, the fan-out area further comprises a data fan-out line, and the bending area further comprises a plurality of data switching lines.

[0023] The data switching line, the data fan-out line and the data line are one-to-one coupled.

[0024] Optionally, the data switching line and the column refresh switching line are arranged alternately.

[0025] Optionally, the data fan-out line and the column refresh fan-out line are bent.

[0026] Optionally, the plurality of column refresh fan-out lines comprise a plurality of first-type column refresh fan-out lines and a plurality of second-type column refresh fan-out lines, and the plurality of data fan-out lines comprise a plurality of first-type data fan-out lines and a plurality of second-type data fan-out lines.

[0027] The display panel further comprises:

[0028] A first conductive layer is located on the substrate, and the first conductive layer comprises the first-type column refresh fan-out line and the first-type data fan-out line.

[0029] A first insulating layer is located on a side of the first conductive layer away from the substrate.

[0030] A second conductive layer is located on a side of the first insulating layer away from the substrate, and the second conductive layer comprises the second-type column refresh fan-out line and the second-type data fan-out line.

[0031] Optionally, the first type of column refresh fan-out lines and the second type of column refresh fan-out lines are arranged alternately in the projection of the substrate.

[0032] Optionally, the memory device further comprises:

[0033] a second insulating layer located on a side of the second conductive layer away from the substrate;

[0034] a third conductive layer located on a side of the second insulating layer away from the substrate, the third conductive layer comprising a plurality of column refresh input lines;

[0035] a third insulating layer located on a side of the third conductive layer away from the substrate;

[0036] a fourth conductive layer located on a side of the third insulating layer away from the substrate, the fourth conductive layer comprising a plurality of column refresh switching lines;

[0037] a first end of the column refresh switching line is connected to the column refresh fan-out line, and a second end of the column refresh switching line is connected to the column refresh input line.

[0038] Optionally, the third conductive layer further comprises a first switching portion and a second switching portion;

[0039] a first end of a part of the column refresh switching line is connected to the first switching portion through a first via hole penetrating through the third insulating layer, and the first switching portion is connected to a first end of the first type of column refresh fan-out line through a second via hole penetrating through the first insulating layer;

[0040] a first end of a part of the column refresh switching line is connected to the second switching portion through a third via hole penetrating through the third insulating layer, and the second switching portion is connected to a first end of the second type of column refresh fan-out line through a fourth via hole penetrating through the second insulating layer.

[0041] Optionally, the memory device further comprises:

[0042] a fourth insulating layer located on a side of the fourth conductive layer away from the substrate;

[0043] a fifth conductive layer located on a side of the fourth insulating layer away from the substrate, the fifth conductive layer comprising a column refresh signal line;

[0044] the third conductive layer further comprises a third switching portion and a fourth switching portion, and the fourth conductive layer further comprises a fifth switching portion and a sixth switching portion;

[0045] a second end of the first type of column refresh fan-out line is connected to the third switching portion through a fifth via hole penetrating through the first insulating layer, the third switching portion is connected to the fifth switching portion through a sixth via hole penetrating through the third insulating layer, and the fifth switching portion is connected to the corresponding column refresh signal line through a seventh via hole penetrating through the fourth insulating layer;

[0046] The second end of the second type of column refresh fan-out line is connected with the fourth adapter through the eighth via hole penetrating through the second insulating layer, the fourth adapter is connected with the sixth adapter through the ninth via hole penetrating through the third insulating layer, and the sixth adapter is connected with the corresponding column refresh signal line through the tenth via hole penetrating through the fourth insulating layer.

[0047] In a second aspect, the embodiments of the present application further provide a display device, comprising the display panel of any one of the above.

[0048] Optionally, the display device further comprises a source driving circuit.

[0049] The source driving circuit is coupled with the column refresh circuit and configured to provide a refresh signal to the column refresh circuit.

[0050] In a third aspect, the embodiments of the present application further provide a refresh method of the display panel of any one of the above, comprising:

[0051] In response to the signal of the refresh signal end, the refresh control signal is provided to the column refresh input line.

[0052] The present application has the following beneficial effects:

[0053] In summary, the display panel, the display device and the refresh method provided in the embodiments of the present application have the following advantages: the display panel comprises a bending area and display areas and non-bending areas located on both sides of the bending area, the display areas comprise at least one column refresh signal line, the non-bending areas comprise at least one column refresh input line and at least one column refresh circuit, the column refresh input line is coupled with the column refresh circuit one by one, in the implementation process, the column refresh circuit is configured to provide a refresh control signal to the column refresh input line in response to the signal of the refresh signal end, and one column refresh input line is coupled with at least one column refresh signal line through the bending area, under the scheme that the at least one column refresh circuit is arranged in the non-bending area, the length of the lower frame formed between the display areas and the bending area is shortened, so that the display effect is better.

[0054] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the following description, or can be learned by practice of the present application. The objects and other advantages of the present application can be realized and achieved by the structure particularly pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0055] The accompanying drawings, which are included to provide a further understanding of the present application, constitute a part of the present application and illustrate the illustrative embodiments of the present application and its description serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0056] FIG. 1 is a schematic diagram of the column refresh circuit arranged below the bending area in the embodiments of the present application;

[0057] Fig. 2 is a connection diagram of a column refresh circuit providing signals for data lines and column refresh signal lines in the embodiment of the present application;

[0058] Fig. 3 is a diagram of a fan-out region in the embodiment of the present application;

[0059] Fig. 4 is a diagram of wires above the bending region in the embodiment of the present application;

[0060] Fig. 5 is a diagram of wires below the bending region in the embodiment of the present application;

[0061] Fig. 6 is a first cross-sectional view of the diagrams of the wires shown in Fig. 4 and Fig. 5;

[0062] Fig. 7 is a second cross-sectional view of the diagrams of the wires shown in Fig. 4 and Fig. 5;

[0063] Fig. 8 is a connection diagram of a source driving circuit and a column refresh circuit in a display device in the embodiment of the present application. DETAILED DESCRIPTION

[0064] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be described below in connection with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments described in the present application, all other embodiments obtained by those of ordinary skill in the art without any creative work fall within the scope of protection of the present application.

[0065] The terms "first", "second", and the like in the specification of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0066] In the related art, in order to realize local refresh in a display panel, a column refresh circuit needs to be added in addition to a row refresh circuit. The added column refresh circuit is usually placed below the display region and above the bending region. Thus, the length of the lower frame formed between the lower edge of the display region and the bending line of the bending region is increased accordingly, resulting in a longer lower frame.

[0067] The preferred embodiments of the present application will be described in detail below in connection with the drawings.

[0068] Referring to Fig. 1, Fig. 2, and Fig. 3, a display panel proposed in the embodiments of the present application includes a bending region and display regions and non-bending regions located on both sides of the bending region.

[0069] The display area includes at least one column refresh signal line.

[0070] The non-bending region includes: at least one column refresh input line and at least one column refresh circuit, wherein the column refresh input line and the column refresh circuit are coupled one-to-one, and the column refresh circuit is configured to provide a refresh control signal to the column refresh input line in response to a signal at the refresh signal terminal.

[0071] A column refresh input line is coupled to at least one column refresh signal line through a bend.

[0072] In this embodiment, the display panel is divided into a display area, a bending area, and a non-bending area from top to bottom. Typically, the bending area is made of a flexible material, and it can be bent around the bending line (e.g., the horizontal central axis). This creates a bottom border between the lower edge of the display area and the bending line.

[0073] In this embodiment of the application, in order to shorten the length of the lower border, the multiple column refresh input lines coupled to the multiple column refresh signal lines and the multiple column refresh circuits that provide refresh control signals for the column refresh input lines are placed in the non-bending area. In this way, the position of the bending line in the bending area can be moved up accordingly, and the distance between the lower edge of the display area and the bending line will be shortened accordingly, thereby shortening the length of the lower border.

[0074] To achieve column refresh functionality, the aforementioned display area includes multiple column refresh signal lines. Typically, these lines are matched with the data lines in the display area. Referring to Figure 1, the column refresh signal lines and data lines are arranged alternately in the display area. The update of the data voltage signal in the data line requires a matching column refresh signal line for control. For example, in Figure 1, the updates of data voltage signal 1 in data line 1 and data voltage signal 2 in data line 2 are both controlled by the column refresh signal line located between data line 1 and data line 2. In this embodiment, after receiving a valid refresh control signal, the column refresh signal line updates the data voltage signal in the coupled data line, thereby updating the brightness of the corresponding display screen. The refresh control signal is generated by the column refresh circuit. During implementation, the column refresh circuit is configured to provide the refresh control signal to the column refresh input line in response to the signal at the refresh signal terminal. Referring to Figure 1, when the refresh signal at the refresh signal terminal is valid, the switching transistors T1 and T2 in the column refresh circuit are turned on. The control unit Level Shift in the column refresh circuit generates a refresh control signal under the action of the aforementioned data voltage signal 1 and data voltage signal 2, and provides the refresh control signal to the aforementioned column refresh input line. Since the display panel includes pixels, and each pixel includes a pixel driving circuit, the pixel driving circuit can update the data voltage signal under the action of the aforementioned refresh control signal.

[0075] According to the signal flow of the refresh control signal, a column refresh input line is coupled to at least one column refresh signal line through a bend area. In other words, the refresh control signal in the column refresh input line is provided to the column refresh signal line of the display area after passing through the bend area, so that the data line of the display area can perform column refresh.

[0076] This application embodiment also includes multiple refresh groups, each refresh group includes at least two adjacent column refresh signal lines, and the column refresh signal lines in each refresh group are connected to the same column refresh fan-out line.

[0077] To achieve fast refresh, the multiple column refresh signal lines in this embodiment are divided into multiple refresh groups. Each refresh group includes at least two adjacent column refresh signal lines. For example, a refresh group may include two, four, eight, or so on. It should be noted that all the column refresh signal lines belonging to the same refresh group are connected to the same column refresh input line; that is, the refresh control signal in all column refresh signal lines of the same refresh group is the same signal.

[0078] To better connect the column refresh signal line and the column refresh input line, as shown in Figure 2, the aforementioned bend area includes multiple column refresh adapter lines.

[0079] The column refresh adapter cable is located between the column refresh input line and the column refresh signal line.

[0080] The column refresh input line, column refresh adapter line, and column refresh signal line are coupled one-to-one.

[0081] In this embodiment of the application, in order to effectively shorten the length of the lower border, as shown in Figure 2, the above-mentioned bending area includes multiple column refresh adapter lines. The column refresh adapter lines are set between the column refresh input line and the column refresh signal line. In order to realize the transmission of refresh control signal, the above-mentioned column refresh input line, column refresh adapter line and column refresh signal line are coupled one-to-one.

[0082] For example, referring to Figure 2, the column refresh input line 1 in the non-bending area is coupled to the column refresh signal line 1 in the display area via the column refresh adapter 1 in the bending area; the column refresh input line 2 in the non-bending area is coupled to the column refresh signal line 2 in the display area via the column refresh adapter 2 in the bending area; the column refresh input line 3 in the non-bending area is coupled to the column refresh signal line 3 in the display area via the column refresh adapter 3 in the bending area; the column refresh input line 4 in the non-bending area is coupled to the column refresh signal line 4 in the display area via the column refresh adapter 4 in the bending area; the column refresh input line 5 in the non-bending area is coupled to the column refresh signal line 5 in the display area via the column refresh adapter 5 in the bending area; and the column refresh input line 6 in the non-bending area is coupled to the column refresh signal line 6 in the display area via the column refresh adapter 6 in the bending area. It should be further explained that the column refresh input line 1 is coupled to the column refresh circuit 1, and the column refresh input line 1 can be electrically connected to a refresh group in the display area, which can include at least two column refresh signal lines; the column refresh input line 2 is coupled to the column refresh circuit 2, and the column refresh input line 2 can be electrically connected to a refresh group in the display area, which can include at least two column refresh signal lines; the column refresh input line 3 is coupled to the column refresh circuit 3, and the column refresh input line 3 can be electrically connected to a refresh group in the display area, which can include at least two column refresh signal lines.

[0083] According to the signal flow of the refresh control signal, the refresh control signal in the column refresh input line is transmitted through the column refresh adapter cable in the bend area and then provided to the column refresh signal line in the display area so that the data lines in the display area can perform column refresh.

[0084] In one feasible approach, to make the bottom bezel shorter, as shown in Figure 3, the aforementioned display panel also includes a fan-out area located between the display area and the bending area.

[0085] The fan-out area includes the column refresh fan-out lines.

[0086] The column refresh fanout line is located between the column refresh adapter line and the column refresh signal line.

[0087] The column refresh adapter cable, column refresh fan-out cable, and column refresh signal cable are coupled one-to-one.

[0088] In this embodiment, the number of column refresh fan-out lines in the fan-out area is the same as the number of column refresh signal lines in the display area. For example, a column refresh fan-out line is provided between the column refresh adapter line and the column refresh signal line. To achieve the transmission of the refresh control signal, the column refresh adapter line, column refresh fan-out line, and column refresh signal line are coupled one-to-one. That is, after the refresh control signal is transmitted through the column refresh input line, it sequentially enters the column refresh adapter line and the column refresh fan-out line, and is finally provided to the column refresh signal line of the display area for column refresh of the display area's data lines.

[0089] After introducing the transmission lines related to column refresh, the following section describes the transmission process of data voltage signals in the data line-related transmission lines.

[0090] Referring to Figures 2 and 3, the above display area also includes data cables.

[0091] Each refresh group has a data cable on both sides.

[0092] In this embodiment, the display area also includes multiple data lines. During the display process, the data voltage signals in the data lines are updated to refresh the display of different screens. To facilitate signal transmission, data lines are provided on both sides of each refresh group in the display area, as shown in Figure 2. The refresh control signal in one refresh group is used to provide a data line on one side of the refresh group (e.g., the data line on the left or right side of the refresh group), and correspondingly, the refresh control signal in the next refresh group is used to provide a data line on one side of the next refresh group.

[0093] There are at least two data lines between the two refresh groups mentioned above, as shown in Figure 3. A refresh group includes four data lines.

[0094] Considering that each refresh group includes at least two adjacent column refresh signal lines, for example, a refresh group may include two, four, eight, etc., at least two data lines are provided between the two refresh groups of the display area in this embodiment. When a refresh group includes two column refresh signal lines, two data lines are provided between the two refresh groups; when a refresh group includes four column refresh signal lines, four data lines are provided between the two refresh groups; when a refresh group includes eight column refresh signal lines, eight data lines are provided between the two refresh groups.

[0095] Referring to Figure 2, the aforementioned fan-out area also includes data fan-out lines, and the bend area also includes multiple data adapter lines;

[0096] Data adapter cables, data fan-out cables, and data cables are coupled one-to-one.

[0097] In this embodiment of the application, in order to provide data voltage signals to the data lines of the display area, the aforementioned fan-out area also includes data fan-out lines, and the bending area also includes multiple data adapter lines, with the data adapter lines, data fan-out lines and data lines being coupled one-to-one.

[0098] For example, the number of data fan-out lines in the fan-out area is the same as the number of data lines in the display area. For example, a data fan-out line is provided between the data adapter cable and the data line. In order to realize the transmission of data voltage signal, the data adapter cable, the data fan-out line and the data line are coupled one-to-one, that is, the data voltage signal enters the data adapter cable and the data fan-out line in sequence, and is finally provided to the data line of the display area for column refresh.

[0099] Referring to Figure 2, the data adapter cable 1 in the bend area is coupled to the data line 1 in the display area. As shown in Figure 3, the data adapter cable 1 in the bend area is coupled to the data line 1 in the display area via the data fan-out line 1 in the fan-out area. Correspondingly, the data adapter cable 2 in the bend area is coupled to the data line 2 in the display area via the data fan-out line 2 in the fan-out area, the data adapter cable 3 in the bend area is coupled to the data line 3 in the display area via the data fan-out line 3 in the fan-out area, the data adapter cable 4 in the bend area is coupled to the data line 4 in the display area via the data fan-out line 4 in the fan-out area, the data adapter cable 5 in the bend area is coupled to the data line 5 in the display area via the data fan-out line 5 in the fan-out area, and the data adapter cable 6 in the bend area is coupled to the data line 6 in the display area via the data fan-out line 6 in the fan-out area.

[0100] To facilitate wiring in the bend area, as shown in Figure 2, the above data transfer lines and column refresh transfer lines are arranged alternately.

[0101] During implementation, the addition of multiple column refresh adapters leads to a corresponding increase in the routing of the bending area. In order not to increase the width of the bending pitch, in this embodiment, the bending pitch of the bending area is reduced to a rectangular strip of 13µm.

[0102] As shown in Figure 3, the data fan-out lines and column refresh fan-out lines are curved.

[0103] To shorten the length of the bottom border and facilitate routing, in this embodiment, the data fan-out lines and column refresh fan-out lines are routed in a bent manner. Referring to Figure 3, the data fan-out lines and column refresh fan-out lines are usually arranged alternately in the fan-out area, for example, data fan-out line 1, column refresh fan-out line 1, ... data fan-out line X, column refresh fan-out line X, ... data fan-out line n, column refresh fan-out line n.

[0104] In one embodiment, each of the aforementioned data fan-out lines includes a first data fan-out sub-line and a second data fan-out sub-line. A first included angle exists between the first and second data fan-out sub-lines. Typically, the first included angle is an acute angle or a right angle, and its range is not specifically limited here. For example, referring to Figure 3, the data voltage signal can first pass through the horizontally arranged first data fan-out sub-line, and then through the vertically arranged second data fan-out sub-line. For example, referring to Figure 3, the horizontally arranged first data fan-out sub-line X1 and the vertically arranged second data fan-out sub-line X2 are provided to the data lines of the display area.

[0105] In one embodiment, each of the above-mentioned column refresh fan-out lines includes a first column refresh fan-out sub-line and a second column refresh fan-out sub-line. A second included angle exists between the first column refresh fan-out sub-line and the second column refresh fan-out sub-line. Typically, this second included angle is an acute angle or a right angle, and its range is not specifically limited here. For example, referring to Figure 3, the refresh control signal can first pass through the horizontally arranged first column refresh fan-out sub-line, and then through the vertically arranged second column refresh fan-out sub-line. For example, referring to Figure 3, the horizontally arranged first column refresh fan-out sub-line X1 and the vertically arranged second column refresh fan-out sub-line X2 are then provided to the column refresh signal line of the display area.

[0106] After introducing the transmission lines related to column refresh and data voltage, we will now use the film layer diagram to explain the connection relationship of the transmission lines in the various film layers of the display panel.

[0107] Referring to Figures 4 and 5, the above-mentioned display panel also includes five film layers, specifically including:

[0108] A first conductive layer is located on a substrate, and the first conductive layer includes a first type of column refresh fan-out line and a first type of data fan-out line.

[0109] First, it should be noted that, based on the connection relationship between the column refresh fan-out lines and the data fan-out lines in different film layers, the aforementioned multiple column refresh fan-out lines include multiple first-type column refresh fan-out lines and multiple second-type column refresh fan-out lines, and the multiple data fan-out lines include multiple first-type data fan-out lines and multiple second-type data fan-out lines.

[0110] For example, a first conductive layer is disposed on a substrate, and the first type of column refresh fan-out line and the first type of data fan-out line are described above.

[0111] The first insulating layer is located on the side of the first conductive layer that is away from the substrate.

[0112] In this embodiment, a first insulating layer is provided on the side of the first conductive layer that is away from the substrate, thereby insulating it from the first conductive layer.

[0113] The second conductive layer is located on the side of the first insulating layer away from the substrate. The second conductive layer includes a second type of column refresh fan-out line and a second type of data fan-out line.

[0114] In this embodiment, a second conductive layer is provided on the side of the first insulating layer away from the substrate, and the second type of column refresh fan-out line and the second type of data fan-out line are both disposed in the second conductive layer.

[0115] For example, the first type of column refresh fan-out lines and the second type of column refresh fan-out lines are alternately arranged in the orthographic projection of the substrate.

[0116] In this embodiment of the application, in order to facilitate wiring, the first type of column refresh fan-out line and the second type of column refresh fan-out line are alternately arranged. Correspondingly, the first type of column refresh fan-out line and the second type of column refresh fan-out line are alternately arranged in the orthographic projection of the substrate.

[0117] In addition, the aforementioned display panel also includes:

[0118] The second insulating layer is located on the side of the second conductive layer that faces away from the substrate.

[0119] In this embodiment, a second insulating layer is provided on the side of the second conductive layer that faces away from the substrate, thereby insulating it from the second conductive layer.

[0120] The third conductive layer is located on the side of the second insulating layer away from the substrate, and the third conductive layer includes multiple column refresh input lines.

[0121] In this embodiment, a third conductive layer is provided on the side of the second insulating layer away from the substrate, and multiple column refresh input lines are provided in the third conductive layer.

[0122] The third insulating layer is located on the side of the third conductive layer that faces away from the substrate.

[0123] In this embodiment, a third insulating layer is provided on the side of the third conductive layer that faces away from the substrate, thereby insulating it from the aforementioned third conductive layer.

[0124] The fourth conductive layer is located on the side of the third insulating layer away from the substrate; the fourth conductive layer includes multiple column refresh lines.

[0125] The first end of the column refresh adapter cable is connected to the column refresh fan-out line, and the second end of the column refresh adapter cable is connected to the column refresh input line.

[0126] In this embodiment, a fourth conductive layer is provided on the side of the third insulating layer away from the substrate, and multiple column refresh lines are provided in the fourth conductive layer.

[0127] To enable electrical connection between the column refresh adapter cable and the column refresh input line, a first via is provided between the fourth conductive layer and the first conductive layer (or the second conductive layer), thereby connecting the first end of the column refresh adapter cable to the column refresh fan-out line. Additionally, a second via is provided between the fourth conductive layer and the third conductive layer, thereby connecting the second end of the column refresh adapter cable to the column refresh input line.

[0128] For example, referring to Figures 6 and 7, the third conductive layer further includes a first transition portion and a second transition portion.

[0129] Referring to Figure 6, the first end of the partial column refresh adapter cable is connected to the first adapter part through a first through hole penetrating the third insulating layer, and the first adapter part is connected to the first end of the first type of column refresh fan-out cable through a second through hole penetrating the first insulating layer.

[0130] In this embodiment, the third conductive layer further includes a first transition portion and a second transition portion. In order to be electrically connected to the first type of column refresh fan-out line disposed on the first conductive layer, a first via penetrating the third insulating layer is also disposed between the fourth conductive layer and the third conductive layer, and a second via penetrating the first insulating layer is also disposed between the third conductive layer and the first conductive layer.

[0131] The first end of the partial column refresh adapter cable in the bending area is connected to the first adapter part through the first via. The first adapter part is further connected to the first end of the first type of column refresh fan-out line through the second via, thereby realizing the electrical connection between the partial column refresh adapter cable and the first type of column refresh fan-out line.

[0132] Referring to Figure 7, the first end of the partial column refresh adapter cable is connected to the second adapter part through the third via penetrating the third insulating layer, and the second adapter part is connected to the first end of the second type of column refresh fan-out cable through the fourth via penetrating the second insulating layer.

[0133] In this embodiment of the application, in order to electrically connect with the second type of column refresh fan-out line disposed on the second conductive layer, a third via penetrating the third insulating layer is also disposed between the fourth conductive layer and the third conductive layer, and a fourth via penetrating the second insulating layer is also disposed between the third conductive layer and the second conductive layer.

[0134] The first end of the partial column refresh adapter cable in the bending area is connected to the second adapter part through the third via. The second adapter part is further connected to the first end of the second type of column refresh fan-out line through the fourth via, thereby realizing the electrical connection between the partial column refresh adapter cable and the second type of column refresh fan-out line.

[0135] In addition, the aforementioned display panel also includes:

[0136] The fourth insulating layer is located on the side of the fourth conductive layer that faces away from the substrate.

[0137] In this embodiment, a fourth insulating layer is provided on the side of the fourth conductive layer that faces away from the substrate, thereby insulating it from the aforementioned fourth conductive layer.

[0138] The fifth conductive layer is located on the side of the fourth insulating layer that faces away from the substrate; the fifth conductive layer includes column refresh signal lines.

[0139] In this embodiment, a fifth conductive layer is provided on the side of the fourth insulating layer that is away from the substrate, and a column refresh signal line is provided in the fifth conductive layer.

[0140] Referring to Figures 6 and 7, the third conductive layer further includes a third transition portion and a fourth transition portion, and the fourth conductive layer further includes a fifth transition portion and a sixth transition portion.

[0141] In this embodiment, the third conductive layer further includes a third adapter and a fourth adapter, thereby enabling the first type of column refresh fan-out line disposed on the first conductive layer to be electrically connected to the column refresh signal line through the third adapter and the fifth adapter, and enabling the second type of column refresh fan-out line disposed on the second conductive layer to be electrically connected to the column refresh signal line through the fourth adapter and the sixth adapter.

[0142] For example, referring to Figure 6, the second end of the first type of column refresh fan-out line is connected to the third adapter through a fifth via penetrating the first insulating layer, the third adapter is connected to the fifth adapter through a sixth via penetrating the third insulating layer, and the fifth adapter is connected to the corresponding column refresh signal line through a seventh via penetrating the fourth insulating layer.

[0143] In this embodiment of the application, in order to electrically connect the first type of column refresh fan-out line with the column refresh signal line, a fifth via penetrating the first insulating layer is provided between the first conductive layer and the third conductive layer, a sixth via penetrating the third insulating layer is provided between the third conductive layer and the fourth conductive layer, and a seventh via penetrating the fourth insulating layer is provided between the fourth conductive layer and the column refresh signal line.

[0144] The second end of the first type of column refresh fan-out line located in the first conductive layer is connected to the third adapter through the fifth via. The third adapter is then connected to the fifth adapter through the sixth via. The fifth adapter is then connected to the corresponding column refresh signal line through the seventh via, thereby realizing the electrical connection between the first type of column refresh fan-out line and the column refresh signal line.

[0145] For example, referring to Figure 7, the second end of the second type of column refresh fan-out line is connected to the fourth adapter through the eighth via penetrating the second insulating layer, the fourth adapter is connected to the sixth adapter through the ninth via penetrating the third insulating layer, and the sixth adapter is connected to the corresponding column refresh signal line through the tenth via penetrating the fourth insulating layer.

[0146] In this embodiment of the application, in order to electrically connect the second type of column refresh fan-out line with the column refresh signal line, an eighth via penetrating the second insulating layer is provided between the second conductive layer and the third conductive layer, a ninth via penetrating the third insulating layer is provided between the third conductive layer and the fourth conductive layer, and a tenth via penetrating the fourth insulating layer is provided between the fourth conductive layer and the column refresh signal line.

[0147] The second end of the second type of column refresh fan-out line located on the second conductive layer is connected to the fourth adapter through the eighth via. The fourth adapter is then connected to the sixth adapter through the ninth via. The sixth adapter is then connected to the corresponding column refresh signal line through the tenth via, thereby realizing the electrical connection between the second type of column refresh fan-out line and the column refresh signal line.

[0148] Based on the same inventive concept, this application provides a display device including the display panel of any of the above.

[0149] In this embodiment of the invention, the display device can be any product or component with a display function, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator. Other essential components of the display device are understood by those skilled in the art and will not be described in detail here, nor should they be construed as limiting the invention.

[0150] In addition, it should be noted that, as shown in Figure 8, the above-mentioned display device also includes a source drive circuit.

[0151] The source drive circuit is coupled to the column refresh circuit and is configured to provide refresh signals to the column refresh circuit.

[0152] In this embodiment of the application, the source drive circuit is electrically connected to the column refresh circuit. For example, the source drive circuit is electrically connected to the column refresh circuit through the refresh signal terminal. The source drive circuit provides a signal to the column refresh circuit through the refresh signal terminal, that is, a refresh signal, so that the column refresh circuit generates a refresh control signal under the action of the refresh signal.

[0153] Based on the same inventive concept, this application provides a method for refreshing a display panel, including:

[0154] In response to the signal at the refresh signal terminal, the refresh control signal is provided to the column refresh input line.

[0155] During implementation, the column refresh circuit in the display panel generates a refresh control signal when it receives a signal from the refresh signal terminal, and provides the refresh control signal to the column refresh input line. The column refresh input line further provides the refresh control signal to the column refresh signal line located in the display area, thereby updating the data voltage signal of the data line electrically connected to the column refresh signal line.

[0156] In summary, the present application provides a display panel, display device, and refresh method. The display panel includes a bent area and display areas and non-bent areas located on both sides of the bent area. The display area includes at least one column refresh signal line, and the non-bent area includes at least one column refresh input line and at least one column refresh circuit. The column refresh input line and the column refresh circuit are coupled one-to-one. In practice, the column refresh circuit is configured to provide a refresh control signal to the column refresh input line in response to a signal at the refresh signal terminal. One column refresh input line is coupled to at least one column refresh signal line through the bent area. In the above-mentioned scheme of placing at least one column refresh circuit in the non-bent area, the length of the lower border formed between the display area and the bent area is shortened, thereby improving the display effect.

[0157] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program product systems. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product system implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0158] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program product systems according to this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in one or more blocks of the flowchart illustrations and / or one or more blocks of the block diagrams.

[0159] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means that implement the functions specified in one or more flowcharts and / or one or more block diagrams.

[0160] These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable apparatus, provide steps for implementing the functions specified in one or more flowcharts and / or one or more block diagrams.

[0161] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A display panel, wherein, include: The bending area and the display area and non-bending area located on both sides of the bending area; The display area includes: at least one column refresh signal line; The non-bending area includes: at least one column refresh input line and at least one column refresh circuit, wherein the column refresh input line and the column refresh circuit are coupled one-to-one, and the column refresh circuit is configured to provide a refresh control signal to the column refresh input line in response to a signal at the refresh signal terminal; One of the column refresh input lines is coupled to at least one of the column refresh signal lines through the bend region.

2. The display panel as claimed in claim 1, wherein, It also includes multiple refresh groups, each refresh group including at least two adjacent column refresh signal lines, and each column refresh signal line in each refresh group is connected to the same column refresh fan-out line.

3. The display panel as described in claim 2, wherein, The bending area includes multiple column refresh adapter lines; The column refresh adapter cable is disposed between the column refresh input line and the column refresh signal line; The column refresh input line, the column refresh adapter line, and the column refresh signal line are coupled one-to-one.

4. The display panel as claimed in claim 3, wherein, It also includes a fan-out area, which is located between the display area and the bending area; The fan-out area includes column refresh fan-out lines; The column refresh fanout line is positioned between the column refresh adapter line and the column refresh signal line; The column refresh adapter cable, the column refresh fan-out cable, and the column refresh signal line are coupled one-to-one.

5. The display panel as claimed in claim 3, wherein, The display area also includes a data cable; Each of the refresh groups has a data cable on both sides.

6. The display panel as claimed in claim 5, wherein, At least two data lines are provided between the two refresh groups.

7. The display panel according to any one of claims 4 to 6, wherein, The fan-out area also includes data fan-out lines, and the bending area also includes multiple data adapter lines; The data adapter cable, the data fan-out cable, and the data line are coupled one-to-one.

8. The display panel as claimed in claim 7, wherein, The data transfer cable and the column refresh transfer cable are arranged alternately.

9. The display panel as claimed in claim 7, wherein, The data fan-out line and the column refresh fan-out line are curved.

10. The display panel according to any one of claims 4 to 9, wherein, The multiple column refresh fan-out lines include multiple first-type column refresh fan-out lines and multiple second-type column refresh fan-out lines; the multiple data fan-out lines include multiple first-type data fan-out lines and multiple second-type data fan-out lines. The display panel also includes: A first conductive layer is located on a substrate, and the first conductive layer includes the first type of column refresh fan-out line and the first type of data fan-out line; The first insulating layer is located on the side of the first conductive layer that is away from the substrate. The second conductive layer is located on the side of the first insulating layer away from the substrate. The second conductive layer includes the second type of column refresh fan-out lines and the second type of data fan-out lines.

11. The display panel as claimed in claim 10, wherein, The first type of column refresh fan-out lines and the second type of column refresh fan-out lines are alternately arranged in the orthographic projection of the substrate.

12. The display panel as claimed in claim 10, wherein, Also includes: The second insulating layer is located on the side of the second conductive layer that is away from the substrate. The third conductive layer is located on the side of the second insulating layer away from the substrate, and the third conductive layer includes the plurality of column refresh input lines; The third insulating layer is located on the side of the third conductive layer that is away from the substrate. A fourth conductive layer is located on the side of the third insulating layer that faces away from the substrate; the fourth conductive layer includes multiple column refresh lines; The first end of the column refresh adapter cable is connected to the column refresh fan-out line, and the second end of the column refresh adapter cable is connected to the column refresh input line.

13. The display panel as claimed in claim 12, wherein, The third conductive layer also includes a first transition portion and a second transition portion; The first end of the column refresh adapter cable is connected to the first adapter part through a first through-hole penetrating the third insulating layer, and the first adapter part is connected to the first end of the first type of column refresh fan-out cable through a second through-hole penetrating the first insulating layer. The first end of the column refresh adapter cable is connected to the second adapter part through a third via penetrating the third insulating layer, and the second adapter part is connected to the first end of the second type of column refresh fan-out cable through a fourth via penetrating the second insulating layer.

14. The display panel as claimed in claim 13, wherein, Also includes: The fourth insulating layer is located on the side of the fourth conductive layer that faces away from the substrate. The fifth conductive layer is located on the side of the fourth insulating layer that faces away from the substrate; the fifth conductive layer includes column refresh signal lines; The third conductive layer further includes a third transition portion and a fourth transition portion, and the fourth conductive layer further includes a fifth transition portion and a sixth transition portion; The second end of the first type of column refresh fan-out line is connected to the third adapter through a fifth via penetrating the first insulating layer. The third adapter is connected to the fifth adapter through a sixth via penetrating the third insulating layer. The fifth adapter is connected to the corresponding column refresh signal line through a seventh via penetrating the fourth insulating layer. The second end of the second type of column refresh fan-out line is connected to the fourth adapter through the eighth via penetrating the second insulating layer. The fourth adapter is connected to the sixth adapter through the ninth via penetrating the third insulating layer. The sixth adapter is connected to the corresponding column refresh signal line through the tenth via penetrating the fourth insulating layer.

15. A display device, wherein, include: The display panel as described in any one of claims 1 to 14.

16. The display device as claimed in claim 15, wherein, It also includes: source drive circuit; The source drive circuit is coupled to the column refresh circuit and is configured to provide the refresh signal to the column refresh circuit.

17. A refresh method applied to a display panel according to any one of claims 1 to 14, wherein, include: In response to the signal at the refresh signal terminal, the refresh control signal is provided to the column refresh input line.

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