Display panel, driving method and terminal device

Abstract

The application provides a display panel, a driving method and a terminal device. The display panel comprises a driving chip, a touch screen and a touch capacitor. The touch screen comprises M driving electrode lines and M sensing electrode lines. The touch capacitor is arranged at the intersection of the M driving electrode lines and the M sensing electrode lines. The driving chip provides N pulse signals to the M driving electrode lines and senses the output signal of the touch capacitor through the M sensing electrode lines. The N pulse signals are pulse signals provided in one driving period. N is a positive integer greater than M. The M driving electrode lines comprise X first driving electrode lines. Q pulse signals in the N pulse signals are transmitted through the X first driving electrode lines. Q is less than N, and X is less than or equal to one-half of Q. Through the above scheme, the touch report rate of part of the area in the screen of the display panel can be improved, thereby bringing a smoother and real-time control feeling for the user.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, and more particularly, to a display panel, a driving method and a terminal device. BACKGROUND

[0002] With the development of technology, the refresh rate of AMOLED screens gradually increases, making the picture display more smooth, especially in video playback, game application and high frame rate scenarios, bringing better visual experience. However, in the face of the demand for high-end game phones, the response speed of the screen and the accuracy of the touch feedback also put forward new requirements, not only requiring a high refresh rate, but also requiring a higher human-computer interaction frequency to ensure that users obtain sensitive touch feedback and fast response during the game process.

[0003] Although increasing the refresh frequency of the whole screen can meet the above-mentioned demand, increasing the refresh frequency of the whole screen will significantly increase the power consumption of the panel, which is not conducive to the endurance performance of the device. Therefore, how to improve the touch report rate in the screen area where the user interacts is a problem to be solved. SUMMARY

[0004] The present application provides a display panel, a driving method and a terminal device, which can improve the touch report rate of part of the screen of the display panel, ensure that every touch of the user can be quickly and accurately fed back to the game, thereby bringing the user a smoother and real-time control feeling.

[0005] In a first aspect, a display panel is provided, comprising: a driving chip, a touch screen and a touch capacitor, the touch screen comprising M driving electrode lines and M sensing electrode lines, the touch capacitor being arranged at the intersection of the M driving electrode lines and the M sensing electrode lines; the driving chip providing N pulse signals to the M driving electrode lines and sensing the output signal of the touch capacitor through the M sensing electrode lines, the N pulse signals being pulse signals provided in one driving period, N being a positive integer greater than M; wherein the M driving electrode lines comprise X first driving electrode lines, Q pulse signals in the N pulse signals being transmitted through the X first driving electrode lines, Q being less than N, and X being less than or equal to two-thirds of Q.

[0006] In the present application, since Q pulse signals in the N pulse signals are transmitted through the X first driving electrode lines, and X is less than or equal to two-thirds of Q, arranging the X first driving electrode lines in the first edge region of the touch screen can improve the touch report rate of the first edge region of the touch screen, ensure that every touch of the user can be quickly and accurately fed back to the game, thereby bringing the user a smoother and real-time control feeling.

[0007] With reference to the first aspect, in some implementations of the first aspect, the display panel further includes edge metal lines; each of the X first drive electrode lines is connected to the drive chip through at least two edge metal lines, and the edge metal lines are configured to transmit pulse signals to the first drive electrode lines.

[0008] In the embodiments of the present application, each edge metal line independently carries one pulse signal, thereby realizing the isolation and independent transmission of the pulse signals. Through such a design, the overlapping interference between the pulse signals can be effectively avoided, thereby improving the transmission quality of the pulse signals.

[0009] With reference to the first aspect, in some implementations of the first aspect, the touch screen includes a first edge region, and the X first drive electrode lines are located in the first edge region.

[0010] With reference to the first aspect, in some implementations of the first aspect, the touch screen includes a second edge region; the M drive electrode lines include Y second drive electrode lines, the Y second drive electrode lines are located in the second edge region, and each of the Y second drive electrode lines transmits one pulse signal.

[0011] In a possible implementation, the second edge region can also be referred to as a non-game operation region.

[0012] In the embodiments of the present application, in the second edge region, each second drive electrode line transmits only one pulse signal, which can reduce the power consumption of the display panel compared to the scheme of improving the refresh frequency of the whole screen, thereby improving the endurance of the display panel.

[0013] With reference to the first aspect, in some implementations of the first aspect, the X first drive electrode lines are drive electrode lines that are adjacently arranged in the M drive electrode lines.

[0014] In the embodiments of the present application, since the X first drive electrode lines are drive electrode lines that are adjacently arranged in the M drive electrode lines, the X first drive electrode lines are arranged in the first edge region of the touch screen, which can enhance the touch sensitivity of the first edge region, so that the game operation region can more quickly and accurately detect and respond to the touch action of the user.

[0015] In a second aspect, a display panel is provided, which includes a driving chip, a touch screen, self-capacitance electrodes and a touch capacitor. The touch screen includes a first edge region and a second edge region. The first edge region includes P edge metal lines, and the driving chip is connected with P self-capacitance electrodes through the P edge metal lines. The second edge region includes M driving electrode lines and M sensing electrode lines, and the touch capacitor is arranged at the intersection of the M driving electrode lines and the M sensing electrode lines. P and M are positive integers. The driving chip sends P pulse signals to the P edge metal lines and senses output signals of the P self-capacitance electrodes through the P edge metal lines. The driving chip sends M pulse signals to the M driving electrode lines and senses output signals of the touch capacitor through the M sensing electrode lines.

[0016] In the embodiments of the present application, the self-capacitance electrode scheme is adopted in the first edge region, and the mutual-capacitance electrode scheme is adopted in the second edge region, which can improve the touch report rate of the first edge region in the touch screen of the display panel, ensure that every touch of the user can be quickly and accurately fed back to the game, and thus bring the user a smoother and real-time control feeling. On the other hand, compared with the scheme for improving the screen refreshing frequency of the whole screen, the power consumption of the display panel can be reduced, and thus the endurance of the display panel is improved.

[0017] In a possible implementation, the first edge region is a game operation region, and the second touch operation region is a non-game operation region.

[0018] In a third aspect, a driving method is provided, which is applied to a driving chip. The driving chip is connected with M driving electrode lines through i edge metal lines, i is a positive integer greater than M, the M driving electrode lines include X first driving electrode lines, each of the X first driving electrode lines is connected with the driving chip through at least two edge metal lines, the i edge metal lines include a first edge metal line and a second edge metal line, the first edge metal line and the second edge metal line are connected with a third driving electrode line, the third driving electrode line is any one of the X first driving electrode lines, X is a positive integer less than M, and the method includes: sending a first pulse signal to the third driving electrode line through the first edge metal line at a first time, and sending a second pulse signal to the third driving electrode line through the second edge metal line at a second time. The first time and the second time are located in the same driving period, and the difference between the second time and the first time is greater than the duration of the first pulse signal.

[0019] In the embodiments of the present application, the difference between the second time at which the driving chip sends the second pulse signal and the first time at which the driving chip sends the first pulse signal is greater than the duration of the first pulse signal. In this way, the first pulse signal and the second pulse signal can be prevented from overlapping in the driving time, thereby effectively avoiding interference between the pulse signals.

[0020] In a fourth aspect, a driving chip is provided, which comprises a circuit configured to perform the driving method in the third aspect.

[0021] In a fifth aspect, a terminal device is provided, which comprises the display panel in any one of the implementation manners of the first aspect or the second aspect.

[0022] In combination with the fifth aspect, in some implementation manners of the fifth aspect, the terminal device comprises a mobile phone, a notebook computer, or a tablet computer. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic diagram of a mobile phone game interface provided by the embodiments of the present application;

[0024] Figure 2 is a schematic diagram of the distribution of a driving electrode line of a display panel provided by the embodiments of the present application;

[0025] Figure 3 is a schematic diagram of the transmission of a pulse signal by a driving electrode line of a display panel provided by the embodiments of the present application;

[0026] Figure 4 is a schematic diagram of the distribution of Tx signals and Rx signals of a display panel provided by the embodiments of the present application;

[0027] Figure 5 is a schematic diagram of the distribution of a touch unit of a display panel provided by the embodiments of the present application;

[0028] Figure 6 is another schematic diagram of the distribution of a touch unit of a display panel provided by the embodiments of the present application;

[0029] Figure 7 is a schematic diagram of the distribution of Tx signals and Rx signals of a mutual-capacitance electrode scheme of a display panel provided by the embodiments of the present application;

[0030] Figure 8 is a schematic diagram of the position of a high-frequency operation area in a display panel provided by the embodiments of the present application;

[0031] Figure 9 is a schematic diagram of the connection between an edge metal line and a self-capacitance electrode in a self-capacitance electrode scheme provided by the embodiments of the present application. DETAILED DESCRIPTION

[0032] In the description of the embodiments of the present application, unless otherwise specified, " / " means the meaning of or, for example, A / B can mean A or B; "and / or" herein only describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In the present application, "at least one" means one or more, and "multiple" means two or more. "At least one of the following" or the like means any combination of the items, including any combination of single item or multiple items. For example, at least one of a, b, or c can mean a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be single or multiple.

[0033] In the present application, the prefix words such as "first", "second" are only used to distinguish different description objects, and have no limiting effect on the position, order, priority, quantity or content of the described objects. The use of ordinal words such as prefixes in the embodiments of the present application does not constitute a limitation on the described objects, and the description of the described objects should be referred to the description of the context in the claims or embodiments, and should not constitute an unnecessary limitation because of the use of such prefix words.

[0034] In order to better understand the technical solutions in the present application, first, the terms involved in the present application are introduced.

[0035] (1) Drive electrode line (Tx): It is a wire in the panel specially used for transmitting electrical signals, usually used for row scanning of capacitive touch screens. An electric field is generated by sending a pulse signal to the drive electrode line, and the touch position is detected in cooperation with the sensing electrode line. Specifically, the Tx signal generates an electric field by sending a low-voltage electric pulse. When a finger touches the screen, it can cause a change in the electric field between Tx and Rx electrodes (because the finger is conductive), thereby causing a change in capacitance. The driving chip of the screen detects this change and analyzes it into the precise position and action of the touch through a corresponding algorithm.

[0036] (2) Sensing electrode line (Rx): It is a wire in the panel specially used for receiving electrical signals, usually used for column scanning of capacitive touch screens.

[0037] (3) Edge metal line (trace): It can refer to the wire on the printed circuit board for connecting various electronic components. In the touch panel, the trace line can be used to connect the driving chip and the Tx, Rx line and other components, so that the signal can be transmitted between the touch panel and the driving chip.

[0038] (4) Touch report rate: can refer to the number of times the screen detects touch position changes per second. It represents the number of touch points that the touch screen can sample in one second, usually measured in Hertz (Hz). For example, a touch report rate of 120 Hz means that the screen can detect 120 touch operations per second.

[0039] (5) Touch unit (pattern): is the basic sensing structure in the touch panel, used to detect the touch position. It is composed of a specific arrangement of Tx and Rx lines, and each intersection point forms a touch sensing area. By sensing the change in capacitance when touching, the touch unit can accurately detect the position and pressure of the touch point and other information.

[0040] (6) Self-capacitance electrode scheme: can refer to each electrode working independently, separately detecting capacitance changes, and each electrode generating an independent capacitance signal when touched by a finger.

[0041] (7) Mutual capacitance electrode scheme: the mutual capacitance scheme relies on the capacitive coupling between Tx and Rx electrodes. When touching, the finger approaches the electrode grid, changing the coupling capacitance between the Tx and Rx electrodes, thereby detecting the touch position.

[0042] The technical solutions in the present application will be described below with reference to the accompanying drawings.

[0043] In recent years, thanks to the excellent color performance, contrast and power consumption performance of AMOLED displays, the global AMOLED industry has developed rapidly. AMOLED display technology not only outperforms traditional LCD in terms of picture quality, but also provides the possibility of full-screen design and innovative appearance due to its flexible substrate characteristics. The plasticity of this flexible substrate makes the screen not only suitable for larger full-screen designs, but also supports various forms such as folding and curved screens, further promoting the innovation of terminal devices.

[0044] With the development of technology, the refresh rate of AMOLED screens has gradually increased, making the picture display more smooth, especially in video playback, gaming applications and high frame rate scenarios, bringing a better visual experience. However, in the face of the needs of high-end gaming phones, the response speed of the screen and the accuracy of touch feedback also pose new requirements, not only requiring a high refresh rate, but also requiring a higher human-computer interaction frequency to ensure that users receive sensitive touch feedback and fast response during the game.

[0045] Although increasing the refresh frequency of the entire screen can meet the above requirements, increasing the refresh frequency of the entire screen will significantly increase the power consumption of the panel, which is not conducive to the battery life of the device. Therefore, the industry has gradually shifted its focus to local refresh rate technology, which improves the report rate in the screen area where user interaction is concentrated, thereby optimizing the interaction experience without increasing overall power consumption.

[0046] For example, such as Figure 1 As shown, during mobile game gameplay, the second edge area 105 in the middle of the screen is the area where the game screen is normally displayed, typically showing the character's perspective and game scene content. Therefore, this area has lower requirements for touch response speed. The user's main operation areas are concentrated on the first edge areas 104 on the left and right sides of the screen. These areas are often touched by the user's two fingers and used for high-frequency operations such as character movement, shooting, and skill release. Therefore, improving the touch sampling rate of the first edge areas 104 on the left and right sides of the screen is particularly crucial for the gaming experience.

[0047] This application provides a display panel, a driving method, and a terminal device that can improve the touch reporting rate of a certain area in the display panel screen, ensuring that every touch by the user can be quickly and accurately fed back into the game, thereby bringing the user a smoother and more real-time control experience.

[0048] In one embodiment, a display panel is provided, comprising: a driver chip, a touch screen, and a touch capacitor. The touch screen includes M driving electrode lines and M sensing electrode lines, and the touch capacitor is disposed at the intersection of the M driving electrode lines and the M sensing electrode lines. The driver chip provides N pulse signals to the M driving electrode lines and senses the output signal of the touch capacitor through the M sensing electrode lines. The N pulse signals are pulse signals provided within one driving cycle, and N is a positive integer greater than M. The M driving electrode lines include X first driving electrode lines 101, and Q pulse signals out of the N pulse signals are transmitted through the X first driving electrode lines 101, where Q is less than N and X is less than or equal to half of Q.

[0049] Optionally, the touch capacitor can be a capacitive sensing node that generates an initial reference capacitance value. When a finger or conductive object touches the touchscreen, the capacitance value of the touch capacitor can be changed. The touch capacitor can output a signal based on this change, which can be detected and analyzed by the driver chip to determine the touch position and other relevant information.

[0050] In one possible implementation, the display panel includes edge metal lines 102. Each of the X first driving electrode lines 101 is connected to the driving chip via at least two edge metal lines 102. The edge metal lines 102 are used to transmit pulse signals to the first driving electrode lines 101. This design effectively avoids overlapping interference between pulse signals, thereby improving the transmission quality of the pulse signals.

[0051] Optionally, the touchscreen includes a first edge region 104, and X first drive electrode lines 101 are located in the first edge region 104.

[0052] Optionally, the touchscreen further includes a second edge region 105, and the M driving electrode lines include Y second driving electrode lines 103, which are located in the second edge region 105. Each of the Y second driving electrode lines 103 transmits a pulse signal. Further optionally, X + Y = M.

[0053] In one possible implementation, the X first drive electrode lines 101 are drive electrode lines arranged adjacently among the M drive electrode lines.

[0054] For example, such as Figure 2 As shown, the display panel includes 13 driving electrode lines, comprising 8 first driving electrode lines 101 and 5 second driving electrode lines 103. Each of the 8 first driving electrode lines 101 transmits 2 pulse signals (pulse signals sent at times T1 to T8 and T14 to T21, respectively), and each of the 5 second driving electrode lines 103 transmits 1 pulse signal (pulse signals sent at times T9 to T13, respectively). The driving chip can sequentially send 21 pulse signals in the time sequence from T1 to T21 within one driving cycle; Figure 2 In the example shown, M = 13, N = 21, X = 8, Y = 5, Q = 16.

[0055] like Figure 3 As shown, since the generation pulses of adjacent pulse signals may partially overlap, therefore, in Figure 2 In this configuration, each of the eight first driving electrode lines 101 can be connected to two edge metal lines 102, and each edge metal line 102 transmits a pulse signal. In this way, the driving chip transmits two Tx signals through the two edge metal lines 102, effectively avoiding overlapping interference between Tx signals while also meeting the requirement of increasing the reporting rate of the first driving electrode lines 101 in the first edge region 104.

[0056] In practical applications, the outgoing lines for Tx and Rx can be, for example, as follows: Figure 4 As shown, either a 2TR1 output method or a 2T2R output method can be used to reduce signal attenuation in the middle area of ​​the display panel.

[0057] In this embodiment, since Q of the N pulse signals are transmitted through X first driving electrode lines, and X is less than or equal to Q / 2, arranging X first driving electrode lines in the first edge area of ​​the touch screen can improve the touch reporting rate of the first edge area of ​​the touch screen in the display panel, ensuring that every touch of the user can be quickly and accurately fed back to the game, thereby bringing the user a smoother and more real-time control experience.

[0058] In one embodiment, a driving method is provided, which is applied to a driving chip connected with M driving electrode lines through i edge metal lines, i is a positive integer greater than M, the M driving electrode lines include X first driving electrode lines 101, each of the X first driving electrode lines is connected with the driving chip through at least two edge metal lines 102, the i edge metal lines include a first edge metal line and a second edge metal line, the first edge metal line and the second edge metal line are connected with a third driving electrode line, the third driving electrode line is any one of the X first driving electrode lines, X is a positive integer less than M, the driving method includes: sending a first pulse signal to the third driving electrode line through the first edge metal line at a first time, and sending a second pulse signal to the third driving electrode line through the second edge metal line at a second time, the first time and the second time are in the same driving period, and the difference between the second time and the first time is greater than the duration of the first pulse signal.

[0059] For example, as shown in FIG. 1, the driving chip is connected with 13 driving electrode lines through 21 edge metal lines, the 13 driving electrode lines include 8 first driving electrode lines 101 and 5 second driving electrode lines 103, and each of the 8 first driving electrode lines is connected with the driving chip through 2 edge metal lines. Figure 2 Therefore, in the driving method, the third driving electrode line can be the first first driving electrode line arranged from top to bottom in the display screen, the first time can be T1, the first pulse signal is the pulse signal sent at the time T1, the second time can be T5, the second pulse signal is the pulse signal sent at the time T5, and the difference between the second time and the first time can be greater than the duration of the pulse signal sent at the time T1 (i.e., the touch pulse) as shown in FIG. 1. Figure 3

[0060] It should be noted that the above example that the first time and the second time are T1 and T5 respectively is only an example, and the present application does not limit the first time and the second time, for example, the first time and the second time can also be T17 and T21 respectively, and the third driving electrode line can be the last first driving electrode line arranged from top to bottom in the display screen.

[0061] In the embodiment of the present application, the difference between the second time at which the driving chip sends the second pulse signal and the first time at which the driving chip sends the first pulse signal is greater than the duration of the first pulse signal, and in this way, the first pulse signal and the second pulse signal can be prevented from overlapping in the driving time, thereby effectively avoiding the interference between the pulse signals.

[0062] ​In one embodiment, a driver chip is provided, which includes circuitry for performing the driving method described above.

[0063] In one embodiment, a display panel is provided, the display panel including: a touch screen, the touch screen including a first edge region 104 and a second edge region 105, the first edge region 104 including a plurality of first touch units 106, the second edge region 105 including a plurality of second touch units 107, the area of ​​the second touch units 107 being N times the area of ​​the first touch units 106, where N is greater than or equal to 2.

[0064] Optionally, multiple first touch units 106 are arranged in an array, and multiple second touch units 107 are arranged in an array.

[0065] Optionally, the first edge region 104 can also be referred to as the game operation region, and the second edge region 105 can also be referred to as the non-game operation region.

[0066] Optionally, the first edge region 104 and the second edge region 105 can be any shape, such as a triangle, rectangle, square, or circle, etc.

[0067] For example, such as Figure 5 As shown, the green parts represent touch units, and the white and black parts represent non-touch units. Figure 5 In this process, the touch units in the corner area (corresponding to the first edge area 104) are modified, the Tx signal is divided into two independent signal channels, and the number of channels of the Rx signal is also doubled accordingly. Thus, multiple first touch units 106 can be formed in the corner area, while the display area (corresponding to the second edge area 105) remains unchanged. That is, the display area includes multiple second touch units 107, and the area of ​​the second touch unit 107 is twice the area of ​​the first touch unit 106.

[0068] For example, such as Figure 6 As shown, the green parts represent touch units, and the white parts represent non-touch units. Figure 6 In this process, the touch units on the left and right sides of the touch screen (corresponding to the first edge area 104) are modified. The Tx signal is divided into two independent signal channels, and the number of channels for the Rx signal is also doubled accordingly. As a result, multiple first touch units 106 can be arrayed in the left and right sides, while the middle area (corresponding to the second touch area, the second edge area 105) remains unchanged. That is, the display area includes multiple second touch units 107 arrayed in the middle, and the area of ​​the second touch unit 107 is twice the area of ​​the first touch unit 106.

[0069] In the embodiments of the present application, by setting the area proportion of the touch units in the first edge area and the second edge area, the touch report rate of the first edge area can be improved, and when a user operates a character in a game through the first edge area, it can be ensured that every touch of the user can be quickly and accurately fed back to the game, thereby bringing the user a smoother and real-time control feeling.

[0070] In one embodiment, a display panel is provided, which includes a driving chip, a touch screen, self-capacitance electrodes 108 and a touch capacitor. The touch screen includes a first edge area 104 and a second edge area 105. The first edge area 104 includes P edge metal lines 102, and the driving chip is connected with P self-capacitance electrodes 108 through the P edge metal lines 102. The second edge area 105 includes M driving electrode lines and M sensing electrode lines, and the touch capacitor is arranged at the intersection of the M driving electrode lines and the M sensing electrode lines. P and M are positive integers. The driving chip sends P pulse signals to the P edge metal lines 102 and senses the output signals of the P self-capacitance electrodes 108 through the P edge metal lines 102. The driving chip sends M pulse signals to the M driving electrode lines and senses the output signals of the touch capacitor through the M sensing electrode lines.

[0071] The wiring mode of the first edge area 104 can also be referred to as a self-capacitance electrode scheme, and the wiring mode of the second edge area 105 can also be referred to as a mutual-capacitance electrode scheme.

[0072] Optionally, the first edge area 104 can also be referred to as a game operation area, and the second edge area 105 can also be referred to as a non-game operation area.

[0073] Exemplarily, as shown in Figure 7 In the conventional wiring mode, the sensing electrode lines are less on one side in the length direction of the touch screen and more on the other side in the length direction of the touch screen (corresponding to Figure 7 In the conventional wiring mode, the sensing electrode lines are less on one side in the length direction of the touch screen and more on the other side in the length direction of the touch screen (corresponding to Figure 8 and Figure 9 In Figure 8 and Figure 9 , the high-frequency operation area can correspond to the first edge area 104. In the high-frequency operation area, the driving chip can be connected with P self-capacitance electrodes 108 through P edge metal lines 102, and the lengths of the edge metal lines 102 can be the same or different.

[0074] In the embodiments of the present application, the self-capacitive electrode scheme is adopted in the first edge region, and the mutual-capacitive electrode scheme is adopted in the second edge region, so that the touch report rate of the first edge region in the display panel touch screen can be improved, and each touch of the user can be quickly and accurately fed back to the game, thereby bringing the user a smoother and real-time control feeling. On the other hand, it is beneficial to reduce the power consumption of the panel, thereby improving the endurance of the display panel.

[0075] The present application also provides a terminal device, which comprises the display panel described in any of the above embodiments.

[0076] It should be noted that the terminal device in the embodiments of the present application can refer to a user equipment, an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user device. The terminal device can also be a cellular phone, a cordless phone, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network, a terminal device in a future 6G network, or a terminal device in a future evolved public land mobile network, etc. The embodiments of the present application are not limited thereto.

[0077] It should also be noted that in various embodiments of the present application, the terms and / or descriptions of various embodiments are consistent and can be mutually referred to if there is no special description and logical conflict. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0078] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A driving method characterized by comprising: The method is applied to a driving chip, the driving chip is connected with M driving electrode lines through i edge metal lines, i is a positive integer greater than M, the M driving electrode lines include X first driving electrode lines, each of the X first driving electrode lines is connected with the driving chip through at least two edge metal lines, the i edge metal lines include a first edge metal line and a second edge metal line, the first edge metal line and the second edge metal line are connected with a third driving electrode line, the third driving electrode line is any one of the X first driving electrode lines, X is a positive integer less than M, and the method comprises: sending a first pulse signal to the third driving electrode line through the first edge metal line at a first time, and sending a second pulse signal to the third driving electrode line through the second edge metal line at a second time, the first time and the second time are in the same driving period, and the difference between the second time and the first time is greater than the duration of the first pulse signal.

2. A display panel, characterized by, The display panel comprises a driving chip, a touch screen and a touch capacitor, the touch screen comprises M driving electrode lines and M sensing electrode lines, and the touch capacitor is arranged at the intersection of the M driving electrode lines and the M sensing electrode lines. The driving chip is configured to perform the driving method of claim 1.

3. The display panel of claim 2, wherein, The driving chip is further configured to provide N pulse signals to the M driving electrode lines and sense an output signal of the touch capacitor through the M sensing electrode lines, the N pulse signals are pulse signals provided in one driving period, and N is a positive integer greater than M. The M driving electrode lines include X first driving electrode lines, and Q pulse signals in the N pulse signals are transmitted through the X first driving electrode lines, Q is less than N, and X is less than or equal to one-half of Q.

4. The display panel of claim 3, wherein, The display panel further comprises an edge metal line. Each of the X first driving electrode lines is connected with the driving chip through at least two edge metal lines, and the edge metal line is used for transmitting a pulse signal to the first driving electrode line.

5. The display panel of any one of claims 2 to 4, wherein, The touch screen comprises a first edge region, and the X first driving electrode lines are located in the first edge region.

6. The display panel of any one of claims 2 to 4, wherein, The touch screen comprises a second edge region. The M driving electrode lines include Y second driving electrode lines, the Y second driving electrode lines are located in the second edge region, and each of the Y second driving electrode lines transmits a pulse signal.

7. The display panel of claim 6, wherein, The X first driving electrode lines are adjacent driving electrode lines in the M driving electrode lines.

8. A display panel, characterized by, The display panel comprises a driving chip, a touch screen, self-capacitance electrodes and a touch capacitor, the touch screen comprises a first edge region and a second edge region, the first edge region comprises P edge metal lines, the driving chip is connected with P self-capacitance electrodes through the P edge metal lines, the second edge region comprises M driving electrode lines and M sensing electrode lines, the touch capacitor is arranged at the intersection of the M driving electrode lines and the M sensing electrode lines, P and M are positive integers; The driving chip is configured to perform the driving method of claim 1.

9. The display panel of claim 8, wherein, The driving chip is further configured to: send P pulse signals to the P edge metal lines and sense output signals of the P self-capacitance electrodes through the P edge metal lines, and send M pulse signals to the M driving electrode lines and sense output signals of the touch capacitor through the M sensing electrode lines.

10. A driving chip, characterized in that, The driving chip comprises a circuit configured to perform the method of claim 1.

11. A terminal device, comprising: The terminal device comprises the display panel of any one of claims 2 to 9, or the driving chip of claim 10. The terminal device comprises the display panel of any one of claims 2 to 9, or the driving chip of claim 10.

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