Display chip, touch display chip, display screen and electronic equipment

Abstract

The invention provides a display chip, a touch display chip, a display screen and electronic equipment. The display chip comprises a driving unit and a compensation unit, the driving unit is electrically connected with a plurality of display pixels in the electronic equipment, and the compensation unit is electrically connected with the driving unit; the compensation unit is used for sending an interference compensation signal to the driving unit, and the interference compensation signal is used for simulating signal interference generated on display when touch driving signals received by a plurality of electrodes in the electronic equipment are coupled to a negative plate in the electronic equipment; and the driving unit is used for acquiring display data and sending a display signal to the display pixel according to the interference compensation signal and the display data, so that the display pixel emits light. The display unit in the embodiment of the invention can counteract the signal interference generated by the touch driving signal when the display pixel is driven to emit light, and the display effect when the display pixel displays the corresponding image can be improved.

Description

Technical Field

[0001] Embodiments of the present application relate to the technical field of display chips, and in particular, to a display chip, a touch display chip, a display screen, and an electronic device. Background Art

[0002] Touch technology is a human-computer interaction method. Users interact with an electronic device by touching or making gesture operations on the touch area of the electronic device. With the development of intelligent devices, touch technology has become the mainstream operation method of electronic devices such as mobile phones. Electronic devices such as mobile phones receive touch commands input by users on the display screen and identify corresponding touch operations according to the touch commands.

[0003] Currently, the display screen in an electronic device includes a display pixel layer and an electrode layer. The display pixel layer and the electrode layer are respectively disposed on both sides of the cathode plate of the display screen. The touch chip in the electronic device sends a touch driving signal to the electrode and performs touch detection according to the induction signal generated by the electrode. The display chip sends a display signal to the display pixel to drive the display pixel to display an image.

[0004] However, when the touch chip of the electronic device sends a touch driving signal to the electrode, the touch driving signal transmitted in the electrode will be coupled to the cathode plate to form an interference signal. The interference signal on the cathode plate is coupled to the driving line between the display chip and the display pixel, causing signal interference to the display signal transmitted in the driving line and resulting in a poor display effect. Summary of the Invention

[0005] In view of this, embodiments of the present application provide a display chip, a touch display chip, a display screen, and an electronic device to at least partially solve the above problems.

[0006] According to a first aspect of the embodiments of the present application, a display chip is provided, which is applied to an electronic device and includes: a driving unit and a compensation unit; the driving unit is electrically connected to a plurality of display pixels in the electronic device, and the compensation unit is electrically connected to the driving unit; the compensation unit is configured to send an interference compensation signal to the driving unit, where the interference compensation signal is used to simulate the signal interference caused by the touch driving signal received by a plurality of electrodes in the electronic device being coupled to the cathode plate in the electronic device to the display; the driving unit is configured to obtain display data, and according to the interference compensation signal and the display data, send a display signal to the display pixel to make the display pixel emit light.

[0007] In a possible implementation, the driving unit includes: an acquisition subunit and a plurality of driving subunits; the acquisition subunit is electrically connected to the plurality of driving subunits, and the plurality of driving subunits are electrically connected to the plurality of display pixels; the acquisition subunit is configured to acquire the display data; the driving subunit is configured to send the display signal to the display pixel corresponding to the driving subunit according to the display data and the interference compensation signal.

[0008] In a possible implementation, the compensation unit includes: a signal generation unit, a first resistor, a second resistor, a third resistor, a first capacitor, a second capacitor, a third capacitor, and a switch; an output end of the signal generation unit is connected to a first end of the first resistor, a second end of the first resistor is connected to a first end of the first capacitor, a second end of the first capacitor is respectively connected to a first end of the second capacitor and a second end of the second resistor, a first end of the second resistor is grounded, a second end of the second capacitor is respectively connected to a second end of the switch and a second end of the third resistor, a first end of the switch is connected to a second end of the third capacitor, and a first end of the third capacitor is connected to a first end of the third resistor and then grounded; the signal generation unit is configured to generate a reference signal, and the reference signal is related to the touch driving signal.

[0009] In a possible implementation, the reference signal generated by the signal generation unit has a linear relationship with an average value of the touch driving signals received by the plurality of electrodes.

[0010] In a possible implementation, a second end of the third resistor is respectively connected to output ends of the plurality of driving subunits, and the second end of the third resistor outputs the interference compensation signal; the driving subunit is configured to generate a display sub-signal according to the display data, and the display sub-signal is superimposed with the interference compensation signal corresponding to the driving subunit to generate the display signal.

[0011] In a possible implementation, the compensation unit further includes: an analog-to-digital conversion unit; an input end of the analog-to-digital conversion unit is connected to the second end of the third resistor, an output end of the analog-to-digital conversion unit is connected to an output end of the acquisition subunit and is also connected to input ends of the plurality of driving subunits; the analog-to-digital conversion unit is configured to convert an electrical signal output from the second end of the third resistor into the interference compensation signal; the driving subunit is configured to send the display signal to the display pixel corresponding to the driving subunit according to the display data and the interference compensation signal.

[0012] In a possible implementation, the compensation unit includes: a receiving subunit and a compensation subunit; the receiving subunit is electrically connected to the compensation subunit, and the output end of the compensation subunit is respectively connected to the output end of the obtaining subunit and the input end of the driving subunit; the receiving subunit is configured to receive a synchronization signal, wherein the start time of the driving period of the synchronization signal differs from the start time of the driving period of the touch driving signal by a first duration; the compensation subunit is configured to determine an interference compensation signal corresponding to each driving subunit according to the synchronization signal; the driving subunit is configured to send the display signal to the display pixel corresponding to the driving subunit according to the display data and the interference compensation signal corresponding to the driving subunit.

[0013] In a possible implementation, the compensation subunit is configured to determine the interference compensation signal corresponding to the driving subunit according to a preset relationship table and the synchronization signal, or determine the interference compensation signal corresponding to the driving subunit according to a transfer function and the synchronization signal, or determine the interference compensation signal corresponding to a first driving subunit according to the relationship table and the synchronization signal, and determine the interference compensation signal corresponding to a second driving subunit according to the transfer function and the interference compensation signal corresponding to the first driving subunit.

[0014] In a possible implementation, the projection of the driving line between the first driving subunit and the corresponding display pixel on the electrode and the projection of the driving line between the second driving subunit and the corresponding display pixel on the electrode are located within the edge of the electrode.

[0015] In a possible implementation, the interference compensation signals corresponding to at least some of the driving subunits are different.

[0016] According to a second aspect of the embodiments of the present application, there is provided a touch display chip, which is applied to an electronic device and includes a touch chip and a display chip as described in the first aspect; the touch chip is respectively electrically connected to a plurality of electrodes in the electronic device; the touch chip is configured to send a touch driving signal to the electrodes and perform touch detection according to the induction signals generated by the electrodes.

[0017] According to a third aspect of the embodiments of the present application, there is provided a display screen, which includes the display chip as described in the first aspect, or includes the touch display chip as described in the second aspect.

[0018] According to a fourth aspect of the embodiments of the present application, there is provided an electronic device, which includes the display screen as described in the third aspect.

[0019] According to the display chip provided by the embodiments of the present application, the display chip includes a driving unit and a compensation unit. The driving unit is electrically connected to a plurality of display pixels in an electronic device, and the compensation unit is electrically connected to the driving unit. The compensation unit can send an interference compensation signal to the driving unit. The driving unit can obtain display data and send a display signal to the plurality of display pixels according to the display data and the interference compensation signal, so that the display pixels emit light to display a corresponding image through the plurality of display pixels. Since the driving unit refers to the interference compensation signal when sending the display signal to the plurality of display pixels, and the interference compensation signal can simulate the signal interference generated by the touch driving signal transmitted in the electrode when the touch control chip sends the touch driving signal to the electrode, the signal interference generated by the touch driving signal can be offset when the display chip drives the display pixels to emit light, and the display effect when the display pixels display the corresponding image can be improved. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the embodiments of the present application, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0021] Figure 1 It is a schematic diagram of a display screen stack provided by the embodiments of the present application; Figure 2 It is a schematic diagram of a display chip provided by the embodiments of the present application; Figure 3 It is a schematic diagram of a driving unit provided by the embodiments of the present application; Figure 4 It is a schematic diagram of a compensation unit provided by the embodiments of the present application; Figure 5 It is a schematic diagram of the principle of signal interference provided by the embodiments of the present application; Figure 6 It is a schematic diagram of the connection mode between a compensation unit and a driving subunit provided by the embodiments of the present application; Figure 7 It is a schematic diagram of another connection mode between a compensation unit and a driving subunit provided by the embodiments of the present application; Figure 8 It is a schematic diagram of another compensation unit provided by the embodiments of the present application; Figure 9 It is a schematic diagram of a synchronization signal provided by the embodiments of the present application; Figure 10 It is a schematic diagram of a display screen provided by the embodiments of the present application. Detailed Embodiments

[0022] To enable those skilled in the art to better understand the technical solutions in the embodiments of the present application, the following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art shall fall within the scope protected by the embodiments of the present application.

[0023] The terms used in the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The singular forms "a", "the" and "said" used in the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0024] It should be understood that although the terms first, second, third, etc. may be used in the present application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to determining".

[0025] As mentioned above, touch technology is a way of human-computer interaction. Users interact with electronic devices by touching or making gesture operations on the touch area of the electronic devices. With the development of intelligent devices, touch technology has become the mainstream operation method of electronic devices such as mobile phones. Electronic devices such as mobile phones receive touch commands input by users on the display screen and identify the corresponding touch operations according to the touch commands. Currently, the display screen in an electronic device includes a display pixel layer and an electrode layer. The display pixel layer and the electrode layer are respectively arranged on both sides of the cathode plate of the display screen. In one example, Figure 1 is a schematic diagram of a display screen stack provided by an embodiment of the present application, as Figure 1As shown in the figure, the stack of the display screen from top to bottom is a flexible cover plate 101, a polarizer 102, a touch electrode layer 103, an organic encapsulation layer 104, a metal cathode 105, an organic light-emitting semiconductor (Organic Electroluminescence Display, OLED) layer 106, a thin film transistor (Thin Film Transistor, TFT) layer 107, and a PI substrate 108. The metal cathode 105 is the cathode plate, and the OLED layer 106 is the display pixel layer. In the electronic device, the touch chip sends a touch driving signal to the electrode and performs touch detection according to the induction signal generated by the electrode. The display chip sends a display signal to the display pixel to drive the display pixel to display an image. However, when the touch chip of the electronic device sends a touch driving signal to the electrode, the touch driving signal transmitted in the electrode will be coupled to the cathode plate to form an interference signal. The interference signal on the cathode plate is coupled to the driving line between the display chip and the display pixel, causing signal interference to the display signal transmitted in the driving line and resulting in a poor display effect. Specifically, the cathode plate is a Mg-Ag alloy (magnesium-silver alloy), which can be equivalent to a large number of distributed resistors connected in series and parallel. When the electrode receives the touch driving signal, part of the touch driving signal is coupled to the cathode plate to form an interference signal, and the interference signal on the cathode plate is coupled to the driving line of the display pixel, resulting in external signal interference in the display signal transmitted in the driving line and causing a low display effect of the display screen.

[0026] The present application provides a display chip, which includes a driving unit and a compensation unit. The driving unit is electrically connected to a plurality of display pixels in an electronic device, and the compensation unit is electrically connected to the driving unit. The compensation unit can send an interference compensation signal to the driving unit. The driving unit can obtain display data and send a display signal to the plurality of display pixels according to the display data and the interference compensation signal to make the display pixels emit light, so as to display a corresponding image through the plurality of display pixels. Since the driving unit sends the display signal to the plurality of display pixels with reference to the interference compensation signal, and the interference compensation signal can simulate the signal interference caused by the touch driving signal transmitted in the electrode to the display when the touch chip sends the touch driving signal to the electrode, the signal interference generated by the touch driving signal can be offset when the display chip drives the display pixels to emit light, and the display effect when the display pixels display the corresponding image can be improved.

[0027] The display chip provided by the present application will be described below with reference to the accompanying drawings.

[0028] Figure 2 is a schematic diagram of a display chip provided by an embodiment of the present application. The display chip 200 is applied to an electronic device, such as Figure 2As shown, the display chip 200 includes: a driving unit 202 and a compensation unit 201. The driving unit 202 is electrically connected to a plurality of display pixels 401 in the electronic device, and the compensation unit 201 is electrically connected to the driving unit 202.

[0029] The compensation unit 201 can send an interference compensation signal to the driving unit 202. Among them, the interference compensation signal is used to simulate the signal interference generated by the touch driving signal received by a plurality of electrodes in the electronic device being coupled to the cathode plate in the electronic device and affecting the display. The driving unit 202 can obtain display data, and according to the interference compensation signal and the display data, send a display signal to the display pixel 401 to make the display pixel 401 emit light.

[0030] The display chip 200 includes a compensation unit 201 and a driving unit 202. The compensation unit 201 can send an interference compensation signal. In one example, the compensation unit 201 can generate an interference compensation signal according to the touch driving signal output by the touch chip to each electrode. It should be understood that when the touch chip outputs a touch driving signal to the electrode, the electrode receives the touch driving signal. Since there is a cathode plate between the electrode and the display pixel 401, part of the touch driving signal transmitted in the electrode is coupled to the cathode plate to generate an interference signal. The interference signal on the cathode plate is coupled to the driving line between the display chip 200 and the display pixel 401, causing signal interference to the display signal transmitted in the driving line. The interference compensation signal sent by the compensation unit 201 can simulate the signal interference generated by the above touch driving signal on the display signal.

[0031] The driving unit 202 in the display chip 200 is electrically connected to multiple display pixels 401 in the electronic device through driving lines. The driving unit 202 can obtain display data and send display signals to the multiple display pixels 401 through the driving lines according to the display data and the interference compensation signal. The display signals can drive at least some of the multiple display pixels 401 to emit light. For example, it can separately control the R pixels, G pixels, and B pixels in the multiple display pixels 401 to emit light, so that the display screen of the electronic device displays the corresponding image. Optionally, the driving unit 202 can obtain the display sub-data sent by the processor of the electronic device and obtain the display data after processing the display sub-data. In one example, the processor in the electronic device can be a unit with processing functions such as a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), or an Application Specific Integrated Circuit (ASIC). Since the driving unit 202 refers to the interference compensation signal when driving the display pixels 401 to emit light, and the interference compensation signal can simulate the signal interference caused by the touch driving signal received by multiple electrodes in the electronic device being coupled to the cathode plate in the electronic device to the display, the signal interference caused by the touch driving signal to the display can be cancelled when driving the display pixels 401 to emit light, and the display effect can be improved.

[0032] In the embodiment of the present application, the display chip 200 includes a driving unit 202 and a compensation unit 201. The driving unit 202 is electrically connected to multiple display pixels 401 in the electronic device, and the compensation unit 201 is electrically connected to the driving unit 202. The compensation unit 201 can send an interference compensation signal to the driving unit 202. The driving unit 202 can obtain display data and send display signals to the multiple display pixels 401 according to the display data and the interference compensation signal, so that the display pixels 401 emit light to display the corresponding image through the multiple display pixels. Since the driving unit 202 refers to the interference compensation signal when sending display signals to the multiple display pixels 401, and the interference compensation signal can simulate the signal interference caused by the touch driving signal transmitted in the electrodes to the display when the touch control chip sends a touch driving signal to the electrodes, the signal interference generated by the touch driving signal can be cancelled when the display chip 200 drives the display pixels 401 to emit light, and the display effect when the display pixels 401 display the corresponding image can be improved.

[0033] Figure 3 is a schematic diagram of a driving unit provided by an embodiment of the present application, as Figure 3As shown, the driving unit 202 includes: an acquisition subunit 2021 and a plurality of driving subunits 2022. The acquisition subunit 2021 is electrically connected to the plurality of driving subunits 2022, and the plurality of driving subunits 2022 are electrically connected to a plurality of display pixels 401. The acquisition subunit 2021 can acquire display data, and the driving subunit 2022 can send a display signal to the display pixel 401 corresponding to the driving subunit 2022 according to the display data and the interference compensation signal.

[0034] The driving unit 202 includes an acquisition subunit 2021. The acquisition subunit 2021 can acquire display data, and the display data can be a digital signal. The acquisition subunit 2021 is electrically connected to a plurality of driving subunits 2022, and the plurality of driving subunits 2022 are electrically connected to the corresponding display pixels 401 through driving lines. The driving subunit 2022 can send a display signal to the display pixel 401 corresponding to the driving subunit 2022 according to the display data and the interference compensation signal. In one example, the driving subunit 2022 can be a digital-to-analog conversion (DAC). Through the DAC, the display data (digital signal) acquired by the acquisition subunit 2021 can be converted into an analog signal, and a display signal can be generated at least according to the analog signal converted from the display data. The display pixel 401 corresponding to the driving subunit 2022 is driven by the display signal.

[0035] In the embodiment of the present application, the driving unit 202 includes an acquisition subunit 2021 and a plurality of driving subunits 2022. The acquisition subunit 2021 can acquire display data, and the plurality of driving subunits 2022 can drive the corresponding display pixels 401 to emit light according to the display data and the interference compensation signal, realizing the driving of a plurality of display pixels 401 to display an image by the display chip 200. Since the plurality of driving subunits 2022 drive the corresponding display pixels 401 to emit light according to the display data and the interference compensation signal, and the interference compensation signal can simulate the signal interference generated by the touch driving signal transmitted in the electrode on the display, the signal interference generated by the touch driving signal in the display signal can be offset by the interference compensation signal, and the display effect can be improved.

[0036] Figure 4 is a schematic diagram of a compensation unit provided by an embodiment of the present application. As Figure 4As shown, the compensation unit 201 includes a signal generation unit 2011, a first resistor R1, a second resistor R2, a third resistor R3, a first capacitor C1, a second capacitor C2, a third capacitor C3, and a switch K. The output terminal of the signal generation unit 2011 is connected to the first end of the first resistor R1. The second end of the first resistor R1 is connected to the first end of the first capacitor C1. The second end of the first capacitor C1 is respectively connected to the first end of the second capacitor C2 and the second end of the second resistor R2. The first end of the second resistor R2 is grounded. The second end of the second capacitor C2 is respectively connected to the second end of the switch K and the second end of the third resistor R3. The first end of the switch K is connected to the second end of the third capacitor C3. The first end of the third capacitor C3 is connected to the first end of the third resistor R3 and then grounded. The signal generation unit 2011 can generate a reference signal, and the reference signal is related to the touch driving signal.

[0037] The specific principle is described below. After the signal generation unit 2011 generates a reference signal related to the touch driving signal, the reference signal is transmitted through the first resistor R1, the second resistor R2, the third resistor R3, the first capacitor C1, the second capacitor C2, the third capacitor C3, and the switch K, and is output from the second end of the third resistor R3. During the transmission process, the first resistor R1 can simulate the equivalent resistance between the electrode and the cathode plate, the first capacitor C1 can simulate the equivalent capacitance between the electrode and the cathode plate, and the second resistor R2 can simulate the resistance of the cathode plate. Thus, the reference signal passing through the first resistor R1, the first capacitor C1, and the second resistor R2 can simulate the process of the touch driving signal coupling to the cathode plate. The second capacitor C2 and the third capacitor C3 can simulate the capacitance between the driving line and the display pixel 401, the third resistor R3 can simulate the parasitic resistance of the driving line, and the switch K can simulate the switching transistor between the driving line and the display pixel 401. It should be understood that when driving the display pixel 401 to emit light, the display chip 200 needs to send a display signal, and at the same time, the display pixel 401 needs to receive a scan signal, and the scan signal can control the on / off of the switching transistor in the driving line. In one example, for Figure 4 the shown circuit structure, when the driving line receives a scan signal, the switch K in the compensation unit 201 closes, connecting the third capacitor C3 to the circuit of the compensation unit 201. When the driving signal does not receive a scan signal, the switch K in the compensation unit 201 opens, disconnecting the third capacitor C3 from the circuit of the compensation unit 201. The process of the signal coupling from the cathode plate to the driving line of the display pixel 401 can be simulated by the second capacitor C2, the third capacitor C3, the switch K, and the third resistor R3. Thus, after the signal generation unit 2011 generates a reference signal, the reference signal is transmitted through the first resistor R1, the second resistor R2, the third resistor R3, the first capacitor C1, the second capacitor C2, the third capacitor C3, and the switch K, and can generate an analog signal interference on the display caused by the touch driving signal received by multiple electrodes in the electronic device coupling to the cathode plate in the electronic device.

[0038] It should be noted that in the embodiments of the present application, the second end of the third resistor R3 serves as the output end of the compensation unit 201 and can output an interference compensation signal. In some other embodiments of the present application, the compensation unit 201 can also output an interference compensation signal in the form of a digital signal. The specific process will be described in detail in the subsequent embodiments.

[0039] In the embodiments of the present application, the compensation unit 201 includes a signal generation unit 2011, a first resistor R1, a second resistor R2, a third resistor R3, a first capacitor C1, a second capacitor C2, a third capacitor C3, and a switch K. The signal generation unit 2011 can generate a reference signal related to the touch driving signal. The reference signal is transmitted through the first resistor R1, the second resistor R2, the third resistor R3, the first capacitor C1, the second capacitor C2, the third capacitor C3, and the switch K to form an interference compensation signal. The above circuit can simulate the signal interference caused by the touch driving signal coupled to the cathode plate, and then the interference signal on the cathode plate is coupled to the driving line of the display pixel 401 to cause signal interference to the display, realizing the generation of the interference compensation signal. The signal interference caused by the touch driving signal to the display can be offset by the interference compensation signal, and the display effect can be improved.

[0040] In a possible implementation manner, the reference signal generated by the signal generation unit 2011 has a linear relationship with the average value of the touch driving signals received by multiple electrodes.

[0041] The following takes the touch chip sending a touch driving signal to the TX electrode as an example to specifically illustrate the principle. Figure 5 is a schematic diagram of the principle of signal interference provided by the embodiments of the present application. As Figure 5 shown, when driving S TX electrodes simultaneously, the touch driving signals received by each TX electrode all generate signal interference on the cathode plate. When the touch chip only sends a touch driving signal to 1 TX electrode among the S TX electrodes, the signal interference of the touch driving signal received by this TX electrode coupled to the cathode plate is:

[0042] used to represent the signal interference of the touch driving signal received by the first TX electrode coupled to the cathode plate, used to represent the cathode plate resistance, used to represent the resistance of the TX electrode, used to represent the equivalent capacitance between the TX electrode and the cathode plate impedance, used to represent the touch driving signal received by the first TX electrode. It should be understood that Figure 5 in respectively represent the resistance of the first TX electrode, the resistance of the second TX electrode, to the resistance of the S-th TX electrode, Figure 5 in respectively represent the equivalent capacitance between the first TX electrode and the cathode plate, the equivalent capacitance between the second TX electrode and the cathode plate, to the equivalent capacitance between the S-th TX electrode and the cathode plate, Figure 5 in respectively represent the received touch driving signals of the first TX electrode, the received touch driving signals of the second TX electrode, to the received touch driving signals of the S-th TX electrode.

[0043] It should be understood that the resistance of each TX electrode is approximately equal, and the equivalent capacitance between each TX electrode and the cathode plate is approximately equal, and the impedance of the equivalent capacitance between each TX electrode and the cathode plate is also approximately equal. Therefore, when driving S TX electrodes simultaneously, the signal interferences coupled to the cathode plate by the S TX electrodes are superimposed, resulting in the total signal interference , and the total signal interference is:

[0044] And multiplying this signal interference formula by S and then dividing by S can be converted to:

[0045] Since , therefore

[0046] is the average value of the touch driving signals received by the S TX electrodes. Therefore, the reference signal generated by the signal generation unit 2011 has a linear relationship with the average value of the touch driving signals received by the multiple electrodes and can generate an analog signal related to the touch driving signal.

[0047] Optionally, for Figure 4 the compensation unit 201 circuit shown, , the resistance value of the first resistor R1 can be set to , the capacitance value of the first capacitor C1 can be set to , and the resistance value of the second resistor R2 can be set to To realize simulating the transmission and coupling process of the display signal by setting the capacitance and resistance, it should be understood that the derivation principles of the third resistor R3, the second capacitor C2, and the third capacitor C3 are similar to the above and will not be elaborated here.

[0048] Optionally, when driving S electrodes simultaneously for touch detection, the capacitance value of the equivalent capacitance between the S electrodes and the cathode plate is relatively large. At this time, the capacitance value of the capacitance can be reduced in proportion. The following is a specific description: Multiplying both the numerator and denominator in the foregoing formula by the coefficient Gain, we can obtain: , It can be seen from the above formula that the resistance value of the first resistor R1 can be set to , The capacitance value of the second capacitor C2 is set to , The resistance value of the second resistor R2 is set to The capacitance value can be reduced without affecting the generation of the interference compensation signal. It should be understood that the derivation principles of the third resistor R3, the second capacitor C2, and the third capacitor C3 are similar to the above, and will not be elaborated here.

[0049] In the embodiment of the present application, the reference signal generated by the signal generation unit 2011 has a linear relationship with the average value of the touch drive signals received by multiple electrodes. Therefore, the signal generation unit 2011 can generate a reference signal related to the touch drive signal, so that the interference compensation signal generated according to the transmitted reference signal can simulate the signal interference generated by the touch drive signal transmitted in the electrodes on the display when the touch chip sends the touch drive signal to the electrodes. Thus, the signal interference generated by the touch drive signal in the display signal can be cancelled according to the interference compensation signal, improving the display effect.

[0050] Figure 6 is a schematic diagram of a connection manner between a compensation unit and a driving subunit provided by an embodiment of the present application. As Figure 6 shown, the second end of the third resistor R3 is respectively connected to the output ends of multiple driving subunits 2022. The second end of the third resistor R3 outputs an interference compensation signal. The driving subunit 2022 can generate a display sub-signal according to the display data. The display sub-signal and the interference compensation signal corresponding to the driving subunit 2022 are superimposed to generate a display signal.

[0051] The driving subunit 2022 generates display sub-signals according to display data. In one example, the driving subunit 2022 can be a DAC, which converts the display data (digital signal) into display sub-signals (analog signals). The third resistor R3 in the compensation unit 201 is connected to the output end of the compensation unit 201 and the output end of the driving subunit 2022. The display sub-signal (analog signal) output by the driving subunit 2022 is superimposed on the interference compensation signal (analog signal) output from the second end of the third resistor R3 to form the display signal of the display pixel 401 corresponding to the driving subunit 2022. It should be noted that different driving subunits 2022 can correspond to different display data, and the driving subunit 2022 generates display sub-signals corresponding to the display pixel 401 connected to the driving subunit 2022 according to the display data corresponding to the driving subunit 2022.

[0052] In the embodiment of the present application, the output end of the compensation unit 201 is respectively connected to the output ends of multiple driving subunits 2022. The driving subunit 2022 can generate display sub-signals according to display data. The display sub-signals are superimposed on the interference compensation signals corresponding to the driving subunit 2022 to generate display signals, realizing interference compensation for the display sub-signals output by each driving subunit 2022 in the analog domain, obtaining display signals, so that the display signals can cancel the signal interference caused by the touch driving signals transmitted in the electrodes to the display, and improving the display effect.

[0053] Figure 7 is a schematic diagram of another connection method between the compensation unit and the driving subunit provided by the embodiment of the present application, as Figure 7 shown, the compensation unit 201 further includes: an analog-to-digital conversion unit 2012. The input end of the analog-to-digital conversion unit 2012 is connected to the second end of the third resistor R3. The output end of the analog-to-digital conversion unit 2012 is connected to the output end of the acquisition subunit 2021 and the input ends of multiple driving subunits 2022. The analog-to-digital conversion unit 2012 can convert the electrical signal output from the second end of the third resistor R3 into an interference compensation signal, and the driving subunit 2022 can send a display signal to the display pixel 401 corresponding to the driving subunit 2022 according to the display data and the interference compensation signal.

[0054] The compensation unit 201 may further include an analog-to-digital conversion unit 2012. The analog-to-digital conversion unit 2012 can convert an analog signal into a digital signal. The input end of the analog-to-digital conversion unit 2012 is respectively connected to the second end of the third resistor R3, the second end of the second capacitor C2, and the first end of the switch K. After the signal generation unit 2011 generates a reference signal, an electrical signal is output to the analog-to-digital conversion unit 2012 through the second end of the third resistor R3. The analog-to-digital conversion unit 2012 converts the electrical signal into an interference compensation signal (digital signal) and then sends it to the driving subunit 2022. Since the input end of the driving subunit 2022 is respectively connected to the output end of the analog-to-digital conversion unit 2012 and the output end of the acquisition subunit 2021, the driving subunit 2022 receives both the display data (digital signal) and the interference compensation signal (digital signal) at the same time, and generates a display signal corresponding to the display pixel 401 connected to the driving subunit 2022 according to the superimposed signal of the display data and the interference compensation signal.

[0055] In the embodiment of the present application, the compensation unit 201 further includes an analog-to-digital conversion unit 2012. The analog-to-digital conversion unit 2012 can convert the electrical signal output from the second end of the third resistor R3 into an interference compensation signal. The driving subunit 2022 can send a display signal to the display pixel 401 corresponding to the driving subunit 2022 according to the display data and the interference compensation signal, which can realize interference compensation for the display data in the digital domain. The driving subunit 2022 can obtain a display signal according to the compensated display data, so that the display signal can cancel the signal interference caused by the touch driving signal transmitted in the electrode to the display, and improve the display effect.

[0056] Figure 8 is a schematic diagram of another compensation unit provided by the embodiment of the present application, as Figure 8 shown, the compensation unit 201 includes a receiving subunit 2013 and a compensating subunit 2014. The receiving subunit 2013 is electrically connected to the compensating subunit 2014. The output end of the compensating subunit 2014 is respectively connected to the output end of the acquisition subunit 2021 and the input end of the driving subunit 2022.

[0057] The receiving subunit 2013 can receive a synchronization signal. Among them, the starting time of the driving cycle of the synchronization signal differs from the starting time of the driving cycle of the touch driving signal by a first duration. The compensating subunit 2014 can determine the interference compensation signal corresponding to each driving subunit 2022 according to the synchronization signal. The driving subunit 2022 can send a display signal to the display pixel 401 corresponding to the driving subunit 2022 according to the display data and the interference compensation signal corresponding to the driving subunit 2022.

[0058] The compensation unit 201 may include a receiving subunit 2013. The receiving subunit 2013 receives a synchronization signal. In one example, the synchronization signal may be sent by a touch chip. After the duration of sending a touch driving signal to the electrode by the touch chip reaches a first duration, the touch chip sends the synchronization signal to the display chip 200. Alternatively, after the duration of sending the synchronization signal to the display chip 200 by the touch chip reaches the first duration, the touch chip sends the touch driving signal to the electrode. In another example, the synchronization signal may be sent by a processor in the electronic device. After the duration of sending the synchronization signal to the display chip 200 by the processor reaches the first duration, the touch chip sends the touch driving signal to the electrode. Alternatively, after the duration of sending the touch driving signal to the electrode by the touch chip reaches the first duration, the processor sends the synchronization signal to the display chip 200. In one example, the synchronization signal may be an Hsync synchronization signal.

[0059] After the receiving subunit 2013 receives the synchronization signal, the compensation subunit 2014 may determine an interference compensation signal corresponding to each driving subunit 2022 according to the synchronization signal. The interference compensation signal in the embodiments of the present application is a digital signal and can compensate for display data. After the compensation subunit 2014 determines the interference compensation signal corresponding to the driving subunit 2022, it sends the interference compensation signal to the driving subunit 2022. The driving subunit 2022 simultaneously receives the display data (digital signal) sent by the obtaining subunit 2021 and the interference compensation signal (digital signal) sent by the compensation subunit 2014. The driving subunit 2022 generates a display signal according to the superimposed signal of the display data and the interference compensation signal, and sends the display signal to the display pixel 401 corresponding to the driving subunit 2022.

[0060] The following is an illustration with a specific example. Figure 9 is a schematic diagram of a synchronization signal provided by an embodiment of the present application. As Figure 9 shown, the start time of the driving period of the synchronization signal differs from the start time of the driving period of the touch driving signal by a first duration . The interference compensation signal is determined according to the synchronization signal. It should be noted that if the start time of the driving period of the synchronization signal has nothing to do with the start time of the driving period of the touch driving signal, when determining the interference compensation signal according to the synchronization signal, there may be a situation where the determined interference compensation signal does not correspond to the touch driving signal, resulting in the interference compensation signal being unable to cancel the signal interference of the touch driving signal on the display. Therefore, the start time of the driving period of the synchronization signal needs to differ from the start time of the driving period of the touch driving signal by a first duration, that is, the synchronization signal and the touch driving signal are synchronized, so that the interference compensation signal determined according to the synchronization signal corresponds to the touch driving signal.

[0061] In an embodiment of the present application, the compensation unit 201 includes a receiving subunit 2013 and a compensation subunit 2014. The receiving subunit 2013 can receive a synchronization signal, and the compensation subunit 2014 can determine an interference compensation signal corresponding to each driving subunit 2022 according to the synchronization signal. The driving subunit 2022 can send a display signal to the display pixel 401 corresponding to the driving subunit 2022 according to the display data and the interference compensation signal corresponding to the driving subunit 2022, which can realize compensating the display data in the digital domain, so that the driving subunit 2022 can obtain a display signal according to the compensated display data. Thus, the display signal can cancel the signal interference caused by the touch driving signal to the display, which can improve the display effect. Compared with the circuit compensation scheme in the foregoing solution, since the compensation subunit 2014 can determine the interference compensation signal corresponding to each driving subunit 2022 according to the synchronization signal, it is not necessary to perform signal simulation in real time through a circuit, which can reduce the power consumption of the display chip 200.

[0062] In a possible implementation manner, the compensation subunit 2014 can determine the interference compensation signal corresponding to the driving subunit 2022 according to a preset relationship table and the synchronization signal, or determine the interference compensation signal corresponding to the driving subunit 2022 according to a transfer function and the synchronization signal, or determine the interference compensation signal corresponding to the first driving subunit according to a preset relationship table and the synchronization signal, and determine the interference compensation signal corresponding to the second driving subunit according to the transfer function and the interference compensation signal corresponding to the first driving subunit.

[0063] The compensation subunit 2014 can determine the interference compensation signal corresponding to the driving subunit 2022 according to a preset relationship table and the synchronization signal. In an example, the preset relationship table can be the corresponding relationship between the duration of receiving the synchronization signal and the interference compensation signal. Optionally, the preset relationship table can be obtained through circuit structure simulation of the compensation unit 201 as shown in Figure 4 or can be obtained through theoretical calculation and other means. The calculation principle is described below: For example Figure 5 the principle is described by taking the TX electrode in

[0064]

[0065]

[0066] is used to represent the cathode plate resistance, is used to represent the signal interference generated by the touch driving signal received by the s-th TX electrode, is used to represent the touch driving signal received by the S-th TX electrode, For characterizing the resistance of the TX electrode, The impedance for characterizing the equivalent capacitance of the TX electrode, due to the cathode plate resistance being equal, and the corresponding to each TX electrode being approximately equal, so when the coefficient is taken as , assuming the interference at the center position of the cathode plate is , then , thus the signal interference corresponding to each TX electrode can be determined according to the at the center position of the cathode plate. Then, since there are many driving lines connecting the driving sub-units 2022 and the display pixels 401 under each TX electrode, the voltage signal corresponding to the position of the cathode plate for each driving line can be obtained by linear interpolation or other interpolation methods, that is, the interference compensation signal corresponding to each driving sub-unit 2022. In one example, assuming there are m driving lines under each TX electrode, for the driving line that is x lines deviated from the (s - 1)-th TX electrode, its corresponding interference compensation signal is , from which the interference compensation signal corresponding to each driving sub-unit 2022 can be obtained. Optionally, a lookup table (Look-Up Table, LUT) can be formed according to the corresponding relationship between the interference compensation signal and the synchronization signal, and thus the interference compensation signal corresponding to the current touch driving signal can be determined according to the synchronization signal and the preset relationship table.

[0067] The compensation unit 201 can also calculate the interference compensation signal corresponding to each driving sub-unit 2022 in real time according to the synchronization signal and the transfer function. Specifically, the transfer function between the interference compensation signal and the synchronization signal can be obtained by simulating the circuit structure as shown in Figure 4 . After receiving the synchronization signal, the interference compensation signal corresponding to each driving sub-unit 2022 is determined according to the transfer function.

[0068] The compensation unit 201 can also determine the interference compensation signal corresponding to the first driving sub-unit according to the relationship table and the synchronization signal. For example: after receiving the synchronization signal, the interference compensation signal corresponding to the first driving sub-unit is determined by querying the preset LUT. After determining the interference compensation signal corresponding to the first driving sub-unit, the interference compensation signal corresponding to the second driving sub-unit is determined according to the interference compensation signal corresponding to the first driving sub-unit and the transfer function. The determination methods of the relationship table and the transfer function are similar to those in the foregoing solutions and will not be elaborated here.

[0069] Optionally, in order to reduce the space occupied by the LUT, the interference compensation signals corresponding to some driving sub-units 2022 may be the same. In one example, since there are approximately 128 driving lines arranged under each TX electrode, it is possible to set the interference compensation signals corresponding to the driving sub-units 2022 connected to some driving lines to be the same. For example, the interference compensation signals corresponding to the driving sub-units 2022 connected to 5 or 10 driving lines are set to be the same.

[0070] In the embodiment of the present application, the compensation sub-unit 2014 may determine the interference compensation signal corresponding to the driving sub-unit 2022 according to a preset relationship table and a synchronization signal. Thus, after receiving the synchronization signal, the interference compensation signal can be determined according to the relationship table, and there is no need to perform signal simulation in real time through a circuit, which can reduce the power consumption of the display chip 200. Alternatively, the interference compensation signal corresponding to the driving sub-unit 2022 is determined according to a transfer function and a synchronization signal. Thus, it is possible to determine the interference compensation signal according to the synchronization signal, which can be applied to the display chip 200 that cannot store the relationship table and has high applicability. Alternatively, the interference compensation signal corresponding to the first driving sub-unit is determined according to a preset relationship table and a synchronization signal, and the interference compensation signal corresponding to the second driving sub-unit is determined according to the transfer function and the interference compensation signal corresponding to the first driving sub-unit. Thus, after determining the interference compensation signals corresponding to some driving sub-units 2022 according to the relationship table, the interference compensation signals corresponding to the remaining driving sub-units 2022 can be calculated according to the transfer function, so that only the corresponding relationship of some interference compensation signals needs to be stored in the relationship table, which can reduce the space occupied by the relationship table and is applicable to the display chip 200 with a small storage space and has high applicability.

[0071] In a possible implementation manner, the projection of the driving line between the first driving sub-unit and the corresponding display pixel 401 on the electrode and the projection of the driving line between the second driving sub-unit and the corresponding display pixel 401 on the electrode are located within the edge of the electrode.

[0072] When the compensation unit 201 adopts a scheme of determining the interference compensation signal corresponding to the first driving subunit according to a preset relationship table and a synchronization signal, and determining the interference compensation signal corresponding to the second driving subunit according to the interference compensation signal corresponding to the first driving subunit and a transfer function, the driving line between the first driving subunit and the corresponding display pixel 401 and the driving line between the second driving subunit and the corresponding display pixel 401 are under the same electrode. Optionally, the projection of the driving line between the first driving subunit and the corresponding display pixel 401 on the electrode may be located at the edge position of the electrode or at the center position of the electrode. Thus, most of the signal interference in the driving lines corresponding to the first driving subunit and the second driving subunit comes from the touch driving signal transmitted in the same electrode, and the interference compensation signal corresponding to the second driving subunit can be determined according to the transfer function and the interference compensation signal corresponding to the first driving subunit.

[0073] In the embodiment of the present application, the projection of the driving line between the first driving subunit and the corresponding display pixel 401 on the electrode and the projection of the driving line between the second driving subunit and the corresponding display pixel 401 on the electrode are within the edge of the electrode. Since the driving line connected to the first driving subunit and the driving line connected to the second driving subunit are under the same electrode, the interference compensation signal corresponding to the second driving subunit can be determined through the interference compensation signal corresponding to the first driving subunit and the transfer function, so that only the corresponding relationships of some interference compensation signals need to be stored in the relationship table, which can reduce the space occupancy of the relationship table and is applicable to the display chip 200 with a small storage space, and has high applicability.

[0074] In a possible implementation manner, the interference compensation signals corresponding to at least some of the driving subunits 2022 are different.

[0075] It should be understood that in the foregoing scheme, it is assumed that there are m driving lines under each TX electrode, and for the driving line that is x driving lines away from the (s - 1)-th TX electrode, the corresponding interference compensation signal is It can be seen that different driving lines can correspond to different interference compensation signals. Optionally, in order to reduce the space occupancy of the LUT, the interference compensation signals corresponding to some of the driving subunits 2022 can be the same. In an example, since there are approximately 128 driving lines under each TX electrode, it can be set that the interference compensation signals corresponding to the driving subunits 2022 connected by 5 or 10 driving lines are the same.

[0076] In the embodiments of the present application, the interference compensation signals corresponding to at least some of the driving sub-units 2022 are different. Thus, according to the signal differences between different electrodes, or according to the signal differences between different positions of the same electrode, the interference compensation signals corresponding to different driving sub-units 2022 can be determined, improving the interference cancellation effect of the interference compensation signals on the display signals and enhancing the display effect.

[0077] Figure 10 FIG. 4 is a schematic diagram of a touch display chip 300 provided by an embodiment of the present application. The touch display chip 300 is applied to an electronic device, such as Figure 10 As shown, the touch display chip 300 includes a touch chip 400 and a display chip 200 as described in any of the foregoing embodiments. The touch chip 400 is electrically connected to a plurality of electrodes in the electronic device respectively. The touch chip 400 can send touch driving signals to the electrodes and perform touch detection according to the induction signals generated by the electrodes.

[0078] The touch chip 400 can output touch driving signals to the electrodes. In one example, the touch driving signals can be signals with a square wave waveform, a sine wave waveform, a trapezoidal wave waveform, etc. The electrodes receive the touch driving signals. When a finger touches, the electrodes detect the touch position of the finger through self-capacitance or mutual capacitance, generating induction signals. The touch chip 400 can perform touch recognition according to the induction signals.

[0079] It should be noted that the display chip 200 in the touch display chip 300 can be the display chip 200 in any of the foregoing embodiments. The specific structure and interaction logic can refer to the descriptions in the foregoing embodiments and will not be elaborated herein.

[0080] In another possible implementation, the touch chip 400 and the display chip 200 can be separately disposed in the electronic device instead of being encapsulated in the touch display chip 300. The specific interaction logic is similar to that in the foregoing embodiments and will not be elaborated herein.

[0081] In an embodiment of the present application, the touch display chip 300 includes a touch chip 400 and a display chip 200. The touch chip 400 can send a touch driving signal to an electrode and perform touch detection based on the induction signal generated by the electrode, thereby realizing the touch detection function. The compensation unit in the display chip 200 can send an interference compensation signal to the driving unit. The driving unit can send a display signal to a plurality of display pixels according to the display data sent by the electronic device and the interference compensation signal, causing the display pixels to emit light to display the corresponding display image. Since the driving unit refers to the interference compensation signal when sending the display signal to the plurality of display pixels, and the interference compensation signal can simulate the signal interference on the display caused by the touch driving signal transmitted in the electrode when the touch chip 400 sends the touch driving signal to the electrode, the signal interference generated by the touch driving signal can be canceled when the display chip 200 drives the display pixels to emit light, and the display effect when the display pixels display the corresponding image can be improved.

[0082] An embodiment of the present application further provides a display screen, which includes the display chip 200 in any of the foregoing embodiments, or the touch display chip 300 in the foregoing embodiments.

[0083] Optionally, the display screen may further include an electrode and display pixels.

[0084] An embodiment of the present application further provides an electronic device, including the display screen in the foregoing embodiment.

[0085] It should be noted that according to the needs of implementation, each component / step described in the embodiments of the present application can be split into more components / steps, or two or more components / steps or partial operations of the components / steps can be combined into new components / steps to achieve the purpose of the embodiments of the present application.

[0086] Those of ordinary skill in the art can realize that the units and method steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the embodiments of the present application.

[0087] The above embodiments are only used to illustrate the embodiments of the present application, rather than to limit the embodiments of the present application. Those of ordinary skill in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the embodiments of the present application. Therefore, all equivalent technical solutions also belong to the scope of the embodiments of the present application. The patent protection scope of the embodiments of the present application shall be defined by the claims.

Claims

1. A display chip, applied to electronic equipment, characterized in that: include: Drive unit and compensation unit; The driving unit is electrically connected to a plurality of display pixels in the electronic device, and the compensation unit is electrically connected to the driving unit; The compensation unit is used to send an interference compensation signal to the driving unit, wherein the interference compensation signal is used to simulate the signal interference caused by the touch driving signals received by the multiple electrodes in the electronic device being coupled to the cathode plate in the electronic device and generated on the display; The driving unit is used to obtain display data, and send a display signal to the display pixel according to the interference compensation signal and the display data, so that the display pixel emits light.

2. The display chip according to claim 1, characterized in that: The driving unit comprises: an acquisition subunit and a plurality of driving subunits; The acquisition subunit is electrically connected to the plurality of driving subunits, and the plurality of driving subunits are electrically connected to the plurality of display pixels; The acquisition subunit is used to acquire the display data; The driving subunit is used to send the display signal to the display pixel corresponding to the driving subunit according to the display data and the interference compensation signal.

3. The display chip according to claim 2, characterized in that: The compensation unit includes: a signal generating unit, a first resistor, a second resistor, a third resistor, a first capacitor, a second capacitor, a third capacitor and a switch; The output end of the signal generating unit is connected to the first end of the first resistor, the second end of the first resistor is connected to the first end of the first capacitor, the second end of the first capacitor is respectively connected to the first end of the second capacitor and the second end of the second resistor, the first end of the second resistor is grounded, the second end of the second capacitor is respectively connected to the second end of the switch and the second end of the third resistor, the first end of the switch is connected to the second end of the third capacitor, and the first end of the third capacitor is connected to the first end of the third resistor and then grounded; The signal generating unit is used to generate a reference signal, where the reference signal is related to the touch driving signal.

4. The display chip according to claim 3, characterized in that: The reference signal generated by the signal generating unit is in a linear relationship with an average value of the touch driving signals received by the plurality of electrodes.

5. The display chip according to claim 3, characterized in that: The second end of the third resistor is connected to the output ends of the plurality of driving sub-units respectively, and the second end of the third resistor outputs the interference compensation signal; The driving sub-unit is used to generate a display sub-signal according to the display data, and the display sub-signal is superimposed with the interference compensation signal corresponding to the driving sub-unit to generate the display signal.

6. The display chip according to claim 3, characterized in that: The compensation unit further includes: an analog-to-digital conversion unit; The input end of the analog-to-digital conversion unit is connected to the second end of the third resistor, and the output end of the analog-to-digital conversion unit is connected to the output end of the acquisition subunit and to the input ends of the plurality of driving subunits; The analog-to-digital conversion unit is used to convert the electrical signal output from the second end of the third resistor into the interference compensation signal; The driving subunit is used to send the display signal to the display pixel corresponding to the driving subunit according to the display data and the interference compensation signal.

7. The display chip according to claim 2, characterized in that: The compensation unit comprises: a receiving subunit and a compensation subunit; The receiving subunit is electrically connected to the compensating subunit, and the output end of the compensating subunit is respectively connected to the output end of the acquiring subunit and the input end of the driving subunit; The receiving subunit is used to receive a synchronization signal, wherein a start time of a driving cycle of the synchronization signal differs from a start time of a driving cycle of the touch driving signal by a first time length; The compensation subunit is used to determine the interference compensation signal corresponding to each of the driving subunits according to the synchronization signal; The driving subunit is used to send the display signal to the display pixel corresponding to the driving subunit according to the display data and the interference compensation signal corresponding to the driving subunit.

8. The display chip according to claim 7, characterized in that: The compensation subunit is used to determine the interference compensation signal corresponding to the driving subunit according to a preset relationship table and the synchronization signal, or to determine the interference compensation signal corresponding to the driving subunit according to a transfer function and the synchronization signal, or to determine the interference compensation signal corresponding to the first driving subunit according to the relationship table and the synchronization signal, and to determine the interference compensation signal corresponding to the second driving subunit according to the transfer function and the interference compensation signal corresponding to the first driving subunit.

9. The display chip according to claim 8, characterized in that: A projection of a driving line between the first driving subunit and a corresponding display pixel on the electrode and a projection of a driving line between the second driving subunit and a corresponding display pixel on the electrode are located within an edge of the electrode.

10. The display chip according to any one of claims 2 to 9, characterized in that: The interference compensation signals corresponding to at least some of the driving sub-units are different.

11. A touch display chip, applied to electronic equipment, characterized in that: Comprising a touch chip and a display chip as claimed in any one of claims 1 to 10; The touch control chip is electrically connected to a plurality of electrodes in the electronic device respectively; The touch chip is used to send a touch drive signal to the electrode and perform touch detection according to the sensing signal generated by the electrode.

12. A display screen, characterized in that: It comprises the display chip as described in any one of claims 1 to 10, or comprises the touch display chip as described in claim 11.

13. An electronic device, characterized in that: Comprising the display screen as claimed in claim 12.

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