Flexible display panel, driving method of flexible display panel and display device

Abstract

The invention provides a flexible display panel, a driving method of the flexible display panel and a display device, relates to the technical field of display, and can restrain the problem of signal mutual interference in the curling process of the flexible display panel. The flexible display panel comprises a curled area and a non-curled area. The flexible display panel comprises a substrate; a plurality of touch driving lines; the touch sensing lines are insulated from the touch driving lines, and the extension directions of the touch driving lines and the driving sensing lines which are located in the same area intersect with each other; wherein under the condition that the flexible display panel in the curling area is in a curling state, at least one touch driving line located in the curling area is in a closed state, and under the condition that the flexible display panel in the curling area is in an unfolded state, the same touch driving line located in the curling area is in an open state; the touch driving lines are used for transmitting analog signals in an open state, and the touch driving lines are used for stopping transmitting the analog signals in a closed state.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of display technologies, and in particular, to a flexible display panel, a driving method for a flexible display panel, and a display device. Background Art

[0002] With the progress and development of display technologies, the requirements for the display effect and power consumption of flexible display panels are gradually increasing. For a flexible display panel with a touch function, the touch electrodes in the flexible display panel are usually located on one side of the cathode layer of the flexible display panel. Therefore, when scanning touch signals, mutual interference will occur between the cathode layer and the touch electrodes, affecting the touch effect of the flexible display panel and causing display defects such as display streaks. Further, for a flexible display panel, during the curling process, the coupling area between the touch electrodes and the cathode layer may be further increased, exacerbating the mutual interference problem and affecting the display effect of the display screen. Summary of the Invention

[0003] Based on this, embodiments of the present application provide a flexible display panel, a driving method for a flexible display panel, and a display device, which can suppress the signal mutual interference problem during the curling process of the flexible display panel, improve the touch quality of the flexible display panel, improve the stability of the display screen, and improve the display effect of the display screen.

[0004] In a first aspect of embodiments of the present application, a flexible display panel is provided. The flexible display panel includes a curling area and a non-curling area, and the flexible display panel includes:

[0005] A substrate;

[0006] A plurality of touch driving lines located on one side of the substrate;

[0007] A plurality of touch sensing lines. The touch sensing lines are located on the same side of the substrate as the touch driving lines, and the touch sensing lines are insulated from the touch driving lines. The extending directions of the touch driving lines and the driving sensing lines located in the same area intersect;

[0008] Wherein, when the flexible display panel in the curling area is in a curled state, at least one of the touch driving lines in the curling area is in a closed state, and when the flexible display panel in the curling area is in an unfolded state, the same touch driving line in the curling area is in an open state. The touch driving line is used to transmit an analog signal in the open state, and the touch driving line is used to stop transmitting an analog signal in the closed state.

[0009] In some embodiments, the plurality of touch driving lines are arranged along a first direction and extend along a second direction;

[0010] A plurality of the touch sensing lines are arranged along the second direction and extend along the first direction;

[0011] Wherein, the first direction intersects the second direction, and the first direction is parallel to the curling direction of the flexible display panel, and the curling direction is the direction from the curling area to the non-curling area.

[0012] In some embodiments, a plurality of the touch driving lines are arranged along the second direction and extend along the first direction, wherein the touch driving lines located in the curling area are disconnected from the touch driving lines located in the non-curling area;

[0013] A plurality of the touch sensing lines are arranged along the first direction and extend along the second direction;

[0014] Wherein, the first direction intersects the second direction, and the first direction is parallel to the curling direction of the flexible display panel, and the curling direction is the direction from the curling area to the non-curling area.

[0015] In some embodiments, when the curling area is completely curled, the touch driving lines in the curling area are in a closed state;

[0016] When the curling area is at least partially unfolded, the touch driving lines in the curling area are in an open state.

[0017] In some embodiments, the flexible display panel includes a plurality of the curling areas;

[0018] Wherein, at least two of the curling areas are spaced apart, and there is the non-curling area between the two spaced-apart curling areas; and / or,

[0019] At least two of the curling areas are connected, and the touch driving lines in the two connected curling areas are disconnected from each other.

[0020] In some embodiments, some of the touch driving lines located in the curling area are arranged along the first direction and extend along the second direction, and some of the touch driving lines located in the non-curling area are arranged along the second direction and extend along the first direction;

[0021] Some of the touch sensing lines located in the curling area are arranged along the second direction and extend along the first direction, and some of the touch driving lines located in the non-curling area are arranged along the first direction and extend along the second direction;

[0022] Wherein, the first direction intersects with the second direction, and the first direction is parallel to the curling direction of the flexible display panel, and the curling direction is the direction from the curling area to the non-curling area.

[0023] In some embodiments, the number of the touch driving lines is equal to the number of the touch sensing lines.

[0024] In some embodiments, when the flexible display panel in the curling area is in a curled state, all the touch driving lines located in the curling area are in a closed state, and when the flexible display panel in the curling area is in an unfolded state, all the touch driving lines located in the curling area are in an open state.

[0025] In some embodiments, the flexible display panel further includes:

[0026] A touch driving chip, which is electrically connected to the touch driving lines, and is configured to control the on / off state of at least one of the touch driving lines in the curling area according to the curling state of the flexible display panel.

[0027] A second aspect of the embodiments of the present application provides a driving method for a flexible display panel, which is used to drive the flexible display panel according to any one of the first aspects above, and includes:

[0028] Obtaining the curling state of the flexible display panel;

[0029] According to the curling state of the flexible display panel, controlling the on / off state of at least one of the touch driving lines in the curling area, wherein when the flexible display panel in the curling area is in a curled state, controlling at least one of the touch driving lines located in the curling area to be in a closed state, and when the flexible display panel in the curling area is in an unfolded state, controlling the same touch driving line located in the curling area to be in an open state, and the touch driving line is used to transmit an analog signal in an open state and stop transmitting an analog signal in a closed state.

[0030] In some embodiments, when the touch driving lines in the curling area are disconnected from the touch driving lines in the non-curling area, the controlling the on / off state of at least one of the touch driving lines in the curling area according to the curling state of the flexible display panel includes:

[0031] When the curling area is completely curled, controlling the touch driving lines in the curling area to be in a closed state;

[0032] When the curling area is at least partially unfolded, control the touch driving lines in the curling area to be in an on state.

[0033] A third aspect of the embodiments of the present application provides a display device, including:

[0034] The flexible display panel as described in any one of the above first aspects.

[0035] The embodiments of the present application provide a flexible display panel, a driving method of the flexible display panel, and a display device. By dividing the flexible display panel into a curling area and a non-curling area, according to the curling state of the flexible display panel in the curling area, control the on / off of the touch driving lines in the curling area, so that when the flexible display panel in the curling area is in a curled state, at least one touch driving line located in the curling area is in an off state, and when the flexible display panel in the curling area is in an unfolded state, the same touch driving line located in the curling area is in an on state. Since the touch function of the flexible display panel in the curling area is usually redundant and prone to accidental touch, when the flexible display panel in the curling area is in a curled state, stopping transmitting analog signals to at least one touch driving line in the curling area can save the energy consumption of the flexible display panel, reduce the risk of accidental touch, and at the same time can reduce the coupling area between the touch driving line and the cathode layer in the flexible display panel, further improving the mutual interference problem between the touch driving line and the cathode layer, improving the touch quality of the flexible display panel, improving the stability and accuracy of the display picture, and improving the display effect of the display picture. Description of the Drawings

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following will briefly introduce the drawings required to be used in the description of the embodiments of the present application or related technologies. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0037] Figure 1 It is a schematic structural diagram of a flexible display panel provided by an embodiment of the present application;

[0038] Figure 2 It is a curling schematic diagram of a flexible display panel provided by an embodiment of the present application;

[0039] Figure 3 It is a schematic structural diagram of another flexible display panel provided by an embodiment of the present application;

[0040] Figure 4 It is a curling schematic diagram of another flexible display panel provided by an embodiment of the present application;

[0041] Figure 5 A schematic structural diagram of another flexible display panel provided by an embodiment of the present application;

[0042] Figure 6 A schematic structural diagram of yet another flexible display panel provided by an embodiment of the present application;

[0043] Figure 7 A schematic structural diagram of a flexible display panel provided by an embodiment of the present application;

[0044] Figure 8 A schematic diagram of the curling of another flexible display panel provided by an embodiment of the present application;

[0045] Figure 9 A schematic flowchart of a driving method for a flexible display panel provided by an embodiment of the present application;

[0046] Figure 10 A schematic structural diagram of a display device provided by an embodiment of the present application.

[0047] Explanation of reference numerals:

[0048] 100, substrate; 200, touch driving line; 300, touch sensing line; 1000, flexible display panel. Detailed implementation manners

[0049] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings. Embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs. The terms used in the specification of the present application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0051] It should be understood that when an element or layer is referred to as being "on", "adjacent to", "connected to", or "coupled to" another element or layer, it can be directly on, adjacent to, connected or coupled to the other element or layer, or there may be intervening elements or layers. In contrast, when an element is referred to as being "directly on", "directly adjacent to", "directly connected to", or "directly coupled to" another element or layer, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc. may be used to describe various elements, components, regions, layers, doping types, and / or portions, these elements, components, regions, layers, doping types, and / or portions should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer, doping type, or portion from another element, component, region, layer, doping type, or portion. Thus, without departing from the teachings of the present invention, the first element, component, region, layer, doping type, or portion discussed below may be referred to as a second element, component, region, layer, or portion; for example, the first doping type may be referred to as the second doping type, and similarly, the second doping type may be referred to as the first doping type; the first doping type and the second doping type are different doping types. For example, the first doping type may be P-type and the second doping type may be N-type, or the first doping type may be N-type and the second doping type may be P-type.

[0052] Spatial relationship terms such as "below", "beneath", "under", "underneath", "above", "over", etc. may be used herein to describe the relationship of one element or feature shown in the figures to other elements or features. It should be understood that, in addition to the orientation shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the figures is flipped, an element or feature described as "below" or "beneath" or "under" another element or feature will be oriented "above" the other element or feature. Thus, the exemplary terms "below" and "beneath" can include both an upper and a lower orientation. In addition, the device may also include additional orientations (such as rotating 90 degrees or other orientations), and the spatial descriptors used herein are to be interpreted accordingly.

[0053] As used herein, the singular forms "a", "an", and "the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprises / comprising" or "has / including" etc. specify the presence of the stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. At the same time, in this specification, the term "and / or" includes any and all combinations of the related listed items.

[0054] It should be noted that when the flexible display panel is curled, as the flexible display panel is curled, there will usually be a part of the curled flexible display panel that cannot be in direct contact with the user's skin, resulting in redundant touch functions for this part of the flexible display panel.

[0055] For a flexible display panel with touch function, the touch electrodes in the flexible display panel are usually located on one side of the cathode layer in the flexible display panel, resulting in the touch signal lines and the cathode layer overlapping in the thickness direction. Therefore, when the voltage on the cathode layer changes, the potential change of the cathode layer will interfere with the signal transmission of the touch signal lines through electric field coupling, thus affecting the transmission of touch signals. At the same time, it will affect the accuracy and stability of the voltage on the cathode layer, resulting in a decrease in the touch quality of the flexible display panel, affecting the accuracy and stability of the display screen, and causing display defects such as display streaks. However, for a flexible display panel, during the curling process, the coupling area between the touch electrodes and the cathode layer may further increase, exacerbating the mutual interference problem and affecting the display effect of the display screen.

[0056] In view of this, providing a flexible display panel that can reduce the signal mutual interference problem during the curling process is an urgent technical problem to be solved at present.

[0057] As Figure 1 shown, in the first aspect of the embodiment of the present application, a flexible display panel is provided. The flexible display panel includes a curling area A1 and a non-curling area A2. The flexible display panel includes: a substrate 100, a plurality of touch driving lines 200, and a plurality of touch sensing lines 300. The plurality of touch driving lines 200 are located on one side of the substrate 100; a plurality of touch sensing lines 300, the touch sensing lines 300 and the touch driving lines 200 are located on the same side of the substrate 100, and the touch sensing lines 300 are insulated from the touch driving lines 200. The extending directions of the touch driving lines 200 and the driving sensing lines 300 in the same area intersect; wherein, when the flexible display panel in the curling area A1 is in a curled state, at least one touch driving line 200 in the curling area A1 is in a closed state, and when the flexible display panel in the curling area A1 is in an unfolded state, the same touch driving line 200 in the curling area A1 is in an open state. The touch driving line 200 is used to transmit an analog signal in the open state, and the touch driving line 200 is used to stop transmitting an analog signal in the closed state.

[0058] It should be noted that the curling region A1 and the non - curling region A2 provided in the embodiments of the present application are only used to represent the positions where the flexible display panel curls. The position where the flexible display panel curls is defined as the curling region A1, and the unfolded position where the flexible display panel does not curl is defined as the non - curling region A2. The curling region A1 and the non - curling region A2 can be converted into each other, rather than a single fixed display region.

[0059] It should be noted that the curling region A1 and the non - curling region A2 provided in the embodiments of the present application can change with the curling degree of the flexible display panel, that is, the curling region A1 and the non - curling region A2 can be divided according to the curling position and curling area of the flexible display panel in the curling state. For example, relevant instruction information can be sent from the host to the touch panel integrated circuit to identify the area and location of the curling region. In addition, the curling region A1 and the non - curling region A2 provided in the embodiments of the present application can also be preset, that is, the distribution of the curling region A1 and the non - curling region A2 is fixed.

[0060] Exemplarily, all the touch driving lines 200 in the curling region A1 are synchronously in the on state or the off state. Relevant instruction information can be sent from the host to the touch panel integrated circuit to make a non - coding setting for the touch driving lines 200 in the off state, so that the touch driving lines 200 stop transmitting analog signals.

[0061] The flexible display panel provided in the embodiments of the present application divides the flexible display panel into a curling region A1 and a non - curling region A2, and controls the on - off of the touch driving lines 200 in the curling region A1 according to the curling state of the flexible display panel in the curling region A1. When the flexible display panel in the curling region A1 is in the curling state, at least one touch driving line 200 in the curling region A1 is in the off state, and when the flexible display panel in the curling region A1 is in the unfolded state, the same touch driving line 200 in the curling region A1 is in the on state. Since the touch function of the flexible display panel in the curling region A1 is usually redundant and prone to accidental touch, when the flexible display panel in the curling region A1 is in the curling state, stopping the transmission of analog signals to at least one touch driving line 200 in the curling region A1 can save the energy consumption of the flexible display panel, reduce the risk of accidental touch, and at the same time can reduce the coupling area between the touch driving lines 200 and the cathode layer in the flexible display panel, further improving the mutual interference problem between the touch driving lines 200 and the cathode layer, improving the touch quality of the flexible display panel, improving the stability and accuracy of the display picture, and improving the display effect of the display picture.

[0062] Such as Figure 1As shown, in some feasible embodiments, multiple touch driving lines 200 are arranged along the first direction X and extend along the second direction Y; multiple touch sensing lines 300 are arranged along the second direction Y and extend along the first direction X; wherein, the first direction X intersects with the second direction Y, and the first direction X is parallel to the curling direction of the flexible display panel, and the curling direction is the direction from the curling area A1 to the non-curling area A2. Among them, as Figure 1 shown in the flexible display panel, the curling area A1 includes multiple touch driving lines 200 from Tx(a + 1) to Tx(b), and the non-curling area A2 includes multiple touch driving lines 200 from Tx(1) to Tx(a), and multiple touch sensing lines 300 from Rx(1) to Rx(c) penetrate through the curling area A1 and the non-curling area A2.

[0063] Exemplarily, as Figure 2 shown, when the flexible display panel shown in Figure 1 is curled, the user cannot touch the flexible display panel within the curling area A1. Among them, the touch driving lines 200 located within the curling area A1 can switch the on / off state one by one along the curling direction.

[0064] For the flexible display panel provided by the embodiments of the present application, by arranging multiple touch driving lines 200 along the first direction X and extending along the second direction Y, when the flexible display panel is curled along the first direction X, the division of the curling area A1 and the non-curling area A2 can be synchronously adjusted with the change of the curling area and the curling position, so that the on / off state of the touch driving lines 200 within the curling area A1 can be adjusted in time, and further, the sensitivity of the touch function of the flexible display panel can be improved. The touch power consumption of the flexible display panel can be further reduced, the mutual interference problem between the touch driving lines 200 and the cathode layer can be improved, the touch quality of the flexible display panel can be improved, the stability and accuracy of the display screen can be improved, and the display effect of the display screen can be improved.

[0065] As Figure 3 shown, in some feasible embodiments, multiple touch driving lines 200 are arranged along the second direction Y and extend along the first direction X, wherein the touch driving lines 200 located in the curling area A1 are disconnected from the touch driving lines 200 located in the non-curling area A2; multiple touch sensing lines 300 are arranged along the first direction X and extend along the second direction Y; wherein, the first direction X intersects with the second direction Y, and the first direction X is parallel to the curling direction of the flexible display panel, and the curling direction is the direction from the curling area A1 to the non-curling area A2. Among them, as Figure 3The flexible display panel shown has a curling area A1 that includes multiple touch driving lines 200 from Tx(c + 1) to Tx(2c), and multiple touch sensing lines 300 from Rx(1) to Rx(a). The non - curling area A2 includes multiple touch driving lines 200 from Tx(1) to Tx(c), and multiple touch sensing lines 300 from Rx(1) to Rx(a).

[0066] Exemplarily, as Figure 4 shown, when the flexible display panel shown Figure 3 is curled, the user cannot touch the flexible display panel within the curling area A1.

[0067] Exemplarily, the areas of the curling area A1 and the non - curling area A2 can be set by setting the number of touch sensing lines 300 within the curling area A1 and the non - curling area A2. All the touch driving lines 200 within the same curling area A1 can be in the on state or the off state simultaneously.

[0068] For the flexible display panel provided by the embodiments of the present application, by disconnecting the touch driving lines 200 located in the curling area A1 from the touch driving lines 200 located in the non - curling area A2, and making the arrangement direction of the touch driving lines 200 different from the first direction X, the flexible display panel can be divided into at least two independently - driven touch partitions. Thus, when the flexible display panel within a single touch partition is completely curled, that is, when the curling area A1 of the flexible display panel completely covers one of the touch partitions, the touch driving lines 200 within this touch partition can be controlled to be in the off state, which can reduce the driving difficulty of the touch driving lines 200, and at the same time can shorten the length of the touch driving lines 200, further reducing the resistance - capacitance load of each touch driving line 200, so as to reduce the delay and attenuation during the transmission of analog signals, thereby improving the touch quality of the flexible display panel, enhancing the stability and accuracy of the display screen, and improving the display effect of the display screen.

[0069] In some feasible embodiments, when the curling area A1 is completely curled, the touch driving lines 200 within the curling area A1 are in the off state; when the curling area A1 is at least partially unfolded, the touch driving lines 200 within the curling area A1 are in the on state.

[0070] For the flexible display panel provided by the embodiments of the present application, by dividing the flexible display panel into at least two independently - driven touch partitions, such that the switch states of the touch driving lines 200 within the same partition are the same, the driving difficulty of the touch driving lines 200 can be further reduced, the touch energy consumption of the flexible display panel can be reduced, and the display performance of the flexible display panel can be improved.

[0071] As Figure 5As shown, in some feasible embodiments, the flexible display panel includes a plurality of curling regions A1; wherein, at least two curling regions A1 are arranged at intervals, and there is a non-curling region A2 between the two curling regions A1 arranged at intervals. Among them, the flexible display panel includes a first curling sub-region A11 and a second curling sub-region A12, and the first curling sub-region A11 and the second curling sub-region A12 are respectively located on both sides of the non-curling region A2 in the first direction X.

[0072] For the flexible display panel provided by the embodiments of the present application, by setting a plurality of curling regions A1, the area of each touch control partition can be reduced, and the control ability of the touch control driving line 200 can be further enhanced. When the flexible display panel curls in a small area, the curling region A1 can cover the touch control partition, so that a plurality of touch control driving lines 200 in the curling region A1 can be driven to be in a closed state, the touch control quality of the flexible display panel can be improved, the touch control power consumption of the flexible display panel can be further reduced, the mutual interference problem between the touch control driving line 200 and the cathode layer can be improved, the touch control quality of the flexible display panel can be improved, the stability and accuracy of the display picture can be improved, and the display effect of the display picture can be improved. At the same time, by setting a non-curling region A2 between two curling regions A1 arranged at intervals, when the flexible display panel curls from both sides of the non-curling region A2 in the first direction X respectively, the switching of the on / off state of the touch control driving line 200 can be realized, and further the touch control quality of the flexible display panel can be improved.

[0073] As Figure 6 As shown, in some feasible embodiments, at least two curling regions A1 are connected, and the touch control driving lines 200 in the two connected curling regions A1 are disconnected. Among them, the flexible display panel includes a first curling sub-region A11 and a second curling sub-region A12, and the first curling sub-region A11 is located between the second curling sub-region A12 and the non-curling region A2.

[0074] It should be noted that during the curling process of the flexible display panel in the same direction, if the area of the curling region A1 is too large, it will cause the touch control driving lines 200 in the curling region A1 to still be in an on state in the early stage of the curling process, resulting in an increased risk of malfunction such as accidental touch and poor display during the curling process.

[0075] The flexible display panel provided by the embodiment of the present application can reduce the area of each touch control partition by setting a plurality of curling regions A1, further enhancing the control ability of the touch control driving line 200. When the flexible display panel curls in a small area, the curling region A1 can cover the touch control partition, so that a plurality of touch control driving lines 200 in the curling region A1 can be driven to be in a closed state, improving the touch control quality of the flexible display panel, further reducing the touch control power consumption of the flexible display panel, improving the mutual interference problem between the touch control driving line 200 and the cathode layer, improving the touch control quality of the flexible display panel, improving the stability and accuracy of the display screen, and improving the display effect of the display screen. At the same time, by setting at least two curling regions A1 to be connected, the touch control driving during the curling process of the flexible display panel in the same direction can be segmentedly controlled. During the curling process, as the curling action occurs, the touch control driving lines 200 in different curling regions A1 are gradually closed, which can extend the on-time of the touch control driving lines 200 in different curling regions A1, increase the touch control range of the flexible display panel, reduce the risk of accidental touch during the curling process of the flexible display panel, and improve the touch control quality of the flexible display panel.

[0076] As Figure 7 shown, in some feasible embodiments, a part of the touch control driving lines 200 located in the curling region A1 are arranged along the first direction X and extend along the second direction Y, and a part of the touch control driving lines 200 located in the non-curling region A2 are arranged along the second direction Y and extend along the first direction X; a part of the touch sensing lines 300 located in the curling region A1 are arranged along the second direction Y and extend along the first direction X, and a part of the touch control driving lines 200 located in the non-curling region A2 are arranged along the first direction X and extend along the second direction Y; wherein, the first direction X intersects with the second direction Y, and the first direction X is parallel to the curling direction of the flexible display panel, and the curling direction is the direction from the curling region A1 to the non-curling region A2. Among them, as Figure 7 shown, the curling region A1 of the flexible display panel includes a plurality of touch control driving lines 200 from Tx(a + 1) to Tx(b), and a plurality of touch sensing lines 300 from Rx(c + 1) to Rx(2c), and the non-curling region A2 includes a plurality of touch control driving lines 200 from Tx(1) to Tx(c), and a plurality of touch sensing lines 300 from Rx(1) to Rx(a).

[0077] Exemplarily, as Figure 8 shown, in the case where the flexible display panel shown in Figure 7 curles, the user cannot touch the flexible display panel in the curling region A1.

[0078] It should be noted that, since the arrangement directions of the touch driving lines 200 in the curling region A1 and the non-curling region A2 are different, and the arrangement directions of the touch sensing lines 300 in the curling region A1 and the non-curling region A2 are different, when the flexible display panel is curled along the first direction X, it is possible to control all the touch driving lines 200 in the non-curling region A2 to be in the on or off state simultaneously, and it is also possible to control the touch driving lines 200 in the curling region A1 to switch the on / off state one by one along the curling direction.

[0079] Exemplarily, a region with a low curling frequency in the flexible display panel can be configured as the non-curling region A2, and a region with a high curling frequency in the flexible display panel can be configured as the curling region A1.

[0080] For the flexible display panel provided by the embodiments of the present application, by setting different arrangement directions of the touch driving lines 200 in different regions and different arrangement directions of the touch sensing lines 300 in different regions, it is convenient to divide the curling region A1 and the non-curling region A2 according to the curling requirements of the flexible display panel, so as to further enhance the control ability of the touch driving lines 200, improve the touch quality of the flexible display panel, improve the mutual interference problem between the touch driving lines 200 and the cathode layer, improve the touch quality of the flexible display panel, improve the stability and accuracy of the display screen, and improve the display effect of the display screen.

[0081] In some feasible embodiments, the number of the touch driving lines 200 is equal to the number of the touch sensing lines 300.

[0082] For the flexible display panel provided by the embodiments of the present application, by setting the number of the touch driving lines 200 to be equal to the number of the touch sensing lines 300, it is possible to prevent the load characteristics of the touch driving lines 200 and the touch sensing lines 300 from being unbalanced, balance the load configuration, and at the same time make the activation and acquisition time distribution of the touch driving lines 200 and the touch sensing lines 300 in the scanning period more balanced, avoid load concentration, improve the scanning effect of the touch signal, and at the same time prevent the lengths of the touch driving lines 200 and the touch sensing lines 300 from being too long resulting in excessive load, so as to further reduce the power consumption of the flexible display panel and improve the display performance of the flexible display panel.

[0083] In some feasible embodiments, when the flexible display panel in the curling region A1 is in the curled state, all the touch driving lines 200 in the curling region A1 are in the off state, and when the flexible display panel in the curling region A1 is in the unfolded state, all the touch driving lines 200 in the curling region A1 are in the on state.

[0084] The flexible display panel provided by the embodiment of the present application can further reduce the risk of accidental touch of the flexible display panel when the flexible display panel in the curling area A1 curls by setting multiple touch driving lines 200 in the curling area A1 to be synchronously in the on state or the off state. Further reduce the coupling area between the touch driving line 200 and the cathode layer in the flexible display panel, improve the mutual interference problem between the touch driving line 200 and the cathode layer, improve the touch quality of the flexible display panel, improve the stability and accuracy of the display picture, and improve the display effect of the display picture.

[0085] In some feasible embodiments, the flexible display panel further includes: a touch driving chip, which is electrically connected to the touch driving line 200, and the touch driving chip is used to control the on-off state of at least one touch driving line 200 in the curling area A1 according to the curling state of the flexible display panel.

[0086] The flexible display panel provided by the embodiment of the present application can control the switching of the on-off state of the touch driving line 200 in the curling area A1 by setting the touch driving chip to be electrically connected to the touch driving line 200, further enhance the control ability of the touch driving line 200, and improve the touch quality of the flexible display panel.

[0087] As Figure 9 shown, in the second aspect of the embodiment of the present application, a driving method for a flexible display panel is provided, which is used to drive the flexible display panel in any one of the above first aspects, including:

[0088] Step S110, obtaining the curling state of the flexible display panel.

[0089] Step S120, controlling the on-off state of at least one touch driving line 200 in the curling area A1 according to the curling state of the flexible display panel, wherein when the flexible display panel in the curling area A1 is in the curling state, controlling at least one touch driving line 200 located in the curling area A1 to be in the off state, and when the flexible display panel in the curling area A1 is in the unfolded state, controlling the same touch driving line 200 located in the curling area A1 to be in the on state. The touch driving line 200 is used to transmit analog signals in the on state, and the touch driving line 200 is used to stop transmitting analog signals in the off state.

[0090] The driving method of the flexible display panel provided by the embodiment of the present application divides the flexible display panel into a curling area A1 and a non-curling area A2. According to the curling state of the flexible display panel in the curling area A1, the switch of the touch driving line 200 in the curling area A1 is controlled, so that when the flexible display panel in the curling area A1 is in the curling state, at least one touch driving line 200 in the curling area A1 is in the off state, and when the flexible display panel in the curling area is in the unfolded state, the same touch driving line 200 in the curling area A1 is in the on state. Since the touch function of the flexible display panel in the curling area A1 is usually redundant and prone to accidental touch, when the flexible display panel in the curling area A1 is in the curling state, stopping the transmission of analog signals to at least one touch driving line 200 in the curling area A1 can save the energy consumption of the flexible display panel, reduce the risk of accidental touch, and at the same time can reduce the coupling area between the touch driving line 200 and the cathode layer in the flexible display panel, further improving the mutual interference problem between the touch driving line 200 and the cathode layer, improving the touch quality of the flexible display panel, improving the stability and accuracy of the display screen, and improving the display effect of the display screen.

[0091] In some feasible embodiments, when the touch driving line 200 in the curling area A1 is disconnected from the touch driving line 200 in the non-curling area A2, according to the curling state of the flexible display panel, controlling the switch state of at least one touch driving line 200 in the curling area A1 includes: when the curling area A1 is completely curled, controlling the touch driving line 200 in the curling area A1 to be in the off state; when the curling area A1 is at least partially unfolded, controlling the touch driving line 200 in the curling area A1 to be in the on state.

[0092] The driving method of the flexible display panel provided by the embodiment of the present application can further reduce the risk of accidental touch of the flexible display panel, further reduce the coupling area between the touch driving line 200 and the cathode layer in the flexible display panel, improve the mutual interference problem between the touch driving line 200 and the cathode layer, improve the touch quality of the flexible display panel, improve the stability and accuracy of the display screen, and improve the display effect of the display screen by setting multiple touch driving lines 200 in the curling area A1 to be in the on state or off state synchronously when the flexible display panel in the curling area A1 curls.

[0093] As Figure 10 shown, in the third aspect of the embodiment of the present application, a display device is provided, including: a flexible display panel 1000 as described in any one of the first aspects above.

[0094] The display device provided by the embodiment of the present application divides the flexible display panel into a curling area A1 and a non-curling area A2, and controls the switch of the touch driving line 200 in the curling area A1 according to the curling state of the flexible display panel in the curling area A1, so that when the flexible display panel in the curling area A1 is in a curling state, at least one touch driving line 200 in the curling area A1 is in an off state, and when the flexible display panel in the curling area is in an unfolded state, the same touch driving line 200 in the curling area A1 is in an on state. Since the touch function of the flexible display panel in the curling area A1 is usually redundant and prone to accidental touch, when the flexible display panel in the curling area A1 is in a curling state, stopping the transmission of analog signals to at least one touch driving line 200 in the curling area A1 can save the energy consumption of the flexible display panel, reduce the risk of accidental touch, and at the same time can reduce the coupling area between the touch driving line 200 and the cathode layer in the flexible display panel, further improving the mutual interference problem between the touch driving line 200 and the cathode layer, improving the touch quality of the flexible display panel 1000, improving the stability and accuracy of the display screen, and improving the display effect of the display screen.

[0095] In the description of this specification, the descriptions referring to the terms "some embodiments", "other embodiments", "ideal embodiments", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0096] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features of the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0097] The above-described embodiments only represent several implementation manners of the present application. The descriptions are relatively specific and detailed, but should not be construed as limiting the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A flexible display panel, characterized in that: The flexible display panel includes a curling area and a non-curling area, and the flexible display panel includes: substrate; A plurality of touch driving lines are located on one side of the substrate; A plurality of touch sensing lines, wherein the touch sensing lines and the touch driving lines are located on the same side of the substrate, the touch sensing lines are insulated from the touch driving lines, and the extension directions of the touch driving lines and the driving sensing lines located in the same area intersect; Among them, when the flexible display panel in the curling area is in a curled state, at least one touch drive line located in the curling area is in a closed state, and when the flexible display panel in the curling area is in an unfolded state, the same touch drive line located in the curling area is in an open state, the touch drive line is used to transmit analog signals in the open state, and the touch drive line is used to stop transmitting analog signals in the closed state.

2. The flexible display panel according to claim 1, characterized in that: The plurality of touch driving lines are arranged along a first direction and extend along a second direction; A plurality of touch sensing lines are arranged along the second direction and extend along the first direction; The first direction intersects with the second direction, and the first direction is parallel to a curling direction of the flexible display panel, and the curling direction is a direction from the curling area to the non-curling area.

3. The flexible display panel according to claim 1, characterized in that: The plurality of touch driving lines are arranged along the second direction and extend along the first direction, wherein the touch driving lines located in the curling area are disconnected from the touch driving lines located in the non-curling area; A plurality of touch sensing lines are arranged along the first direction and extend along the second direction; The first direction intersects with the second direction, and the first direction is parallel to a curling direction of the flexible display panel, and the curling direction is a direction from the curling area to the non-curling area.

4. The flexible display panel according to claim 3, characterized in that: When the curling area is completely curled, the touch driving line in the curling area is in a closed state; When the curled area is at least partially unfolded, the touch drive line in the curled area is in an open state.

5. The flexible display panel according to claim 3, characterized in that: The flexible display panel comprises a plurality of the curling regions; Wherein, at least two of the curling regions are arranged at intervals, and the non-curling region is between the two curling regions arranged at intervals; and / or, At least two of the curling regions are connected, and the touch driving lines in the two connected curling regions are disconnected.

6. The flexible display panel according to claim 1, characterized in that: The touch control driving lines located in the curling area are arranged along the first direction and extend along the second direction, and the touch control driving lines located in the non-curling area are arranged along the second direction and extend along the first direction; The touch sensing lines located in the curling area are arranged along the second direction and extend along the first direction, and the touch driving lines located in the non-curling area are arranged along the first direction and extend along the second direction; The first direction intersects with the second direction, and the first direction is parallel to a curling direction of the flexible display panel, and the curling direction is a direction from the curling area to the non-curling area.

7. The flexible display panel according to claim 6, characterized in that: The number of the touch driving lines is equal to the number of the touch sensing lines.

8. The flexible display panel according to any one of claims 1 to 7, characterized in that: When the flexible display panel in the curling area is in a curled state, most of the touch drive lines located in the curling area are in a closed state, and when the flexible display panel in the curling area is in an unfolded state, all of the touch drive lines located in the curling area are in an open state.

9. The flexible display panel according to any one of claims 1 to 8, characterized in that: Also includes: A touch driving chip is electrically connected to the touch driving line, and the touch driving chip is used to control the switching state of at least one touch driving line in the curling area according to the curling state of the flexible display panel.

10. A method for driving a flexible display panel, for driving the flexible display panel according to any one of claims 1 to 9, characterized in that: include: Acquiring a curling state of the flexible display panel; According to the curling state of the flexible display panel, the switching state of at least one touch drive line in the curling area is controlled, wherein when the flexible display panel in the curling area is in the curling state, at least one touch drive line located in the curling area is controlled to be in a closed state, and when the flexible display panel in the curling area is in an unfolded state, the same touch drive line located in the curling area is controlled to be in an open state, the touch drive line is used to transmit an analog signal in the open state, and the touch drive line is used to stop transmitting the analog signal in the closed state.

11. The driving method of the flexible display panel according to claim 10, characterized in that: In a case where the touch drive line located in the curling area is disconnected from the touch drive line located in the non-curling area, controlling the switch state of at least one touch drive line in the curling area according to the curling state of the flexible display panel includes: When the curling area is completely curled, controlling the touch driving line in the curling area to be in a closed state; When the curling area is at least partially unfolded, the touch driving lines in the curling area are controlled to be in an on state.

12. A display device, characterized in that: include: The flexible display panel according to any one of claims 1 to 9.

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