CN115629673A

CN115629673A - Screen signal processing method, screen signal processing device and electronic equipment

Info

Publication number: CN115629673A
Application number: CN202211285330.0A
Authority: CN
Inventors: 刘康飞
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2023-01-20

Abstract

The application discloses a screen signal processing method, a screen signal processing device and electronic equipment, and belongs to the technical field of electronics. The screen signal processing method is used for an electronic device including a first screen and a second screen, and includes: under the condition that the first screen is in a bright screen state and the second screen is in a screen-off state, acquiring a first screen signal of the first screen and a second screen signal of the second screen; determining a target noise signal according to the second screen signal; and performing noise reduction processing on the first screen signal according to the target noise signal.

Description

Screen signal processing method, screen signal processing device and electronic equipment

Technical Field

The application belongs to the technical field of electronics, and particularly relates to a screen signal processing method, a screen signal processing device and electronic equipment.

Background

The capacitive touch screen is very easy to be interfered by various external screens such as charging, electromagnetism and unstable grounding, and the interference has the characteristics of instantaneous change, irregularity and the like, so that the touch flexibility of the touch screen is influenced.

At present, a time-sharing scanning method is generally used for detecting noise of a touch screen, that is, a noise signal at a time point of T + i is regarded as a noise signal at a time point of T. Therefore, the noise signals detected by time-sharing scanning are not real-time noise signals of the touch screen, so that the detection accuracy of the noise signals is low, and the noise signals in the screen signals cannot be effectively filtered.

Disclosure of Invention

An object of the embodiments of the present application is to provide a screen signal processing method, a screen signal processing apparatus, and an electronic device, which can effectively filter a noise signal in a screen signal, so as to reduce interference of the noise signal on the screen signal.

In a first aspect, an embodiment of the present application provides a screen signal processing method, where the method is used for an electronic device including a first screen and a second screen, and the screen signal processing method includes: under the condition that the first screen is in a bright screen state and the second screen is in a screen-off state, acquiring a first screen signal of the first screen and a second screen signal of the second screen; determining a target noise signal according to the second screen signal; and carrying out noise reduction processing on the first screen signal according to the target noise signal.

In a second aspect, an embodiment of the present application provides a screen signal processing apparatus for an electronic device including a first screen and a second screen, the screen signal processing apparatus including: the processing unit is used for acquiring a first screen signal of the first screen and a second screen signal of the second screen under the condition that the first screen is in a bright screen state and the second screen is in a dead screen state; the processing unit is further used for determining a target noise signal according to the second screen signal; and the processing unit is also used for carrying out noise reduction processing on the first screen signal according to the target noise signal.

In a third aspect, embodiments of the present application provide an electronic device, which includes a processor and a memory, where the memory stores a program or instructions executable on the processor, and the program or instructions, when executed by the processor, implement the steps of the screen signal processing method according to the first aspect.

In a fourth aspect, embodiments of the present application provide a readable storage medium, on which a program or instructions are stored, and the program or instructions, when executed by a processor, implement the steps of the screen signal processing method according to the first aspect.

In a fifth aspect, embodiments of the present application provide a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the steps of the screen signal processing method according to the first aspect.

In a sixth aspect, the present application provides a computer program product, which is stored in a storage medium and executed by at least one processor to implement the steps of the screen signal processing method according to the first aspect.

In the screen signal processing method provided by the embodiment of the application, under the condition that the first screen is in a bright screen state and the second screen is in an off screen state, a first screen signal of the first screen and a second screen signal of the second screen are obtained, a target noise signal is further determined according to the second screen signal, and noise reduction processing is performed on the first screen signal according to the target noise signal.

By the screen signal processing method, for the electronic equipment with the first screen and the second screen, under the condition that the first screen is on and the second screen is off, the screen signals of the two display screens are detected. On the basis, a target noise signal is determined through a screen signal of an off-screen, namely a second screen signal, and is used as a noise signal of a bright-screen, and the noise reduction processing is performed on the screen signal of the bright-screen, namely a first screen signal through the determined target noise signal, so that a first screen signal subjected to noise reduction is obtained. It is understood that the screen signal of the off-screen can be regarded as a noise signal of the off-screen, and the screen signal of the on-screen includes a valid screen signal and a noise signal. Therefore, the noise signal of the bright screen is determined through the screen signal of the off-screen, namely the noise signal of the off-screen, so that the accuracy and the real-time property of determining the noise signal of the bright screen are ensured, the noise signal of the bright screen can be effectively filtered, the interference of the noise signal on the bright screen is reduced, and the touch flexibility of the bright screen is improved.

Drawings

Fig. 1 is a schematic flowchart of a screen signal processing method according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a screen signal processing method according to an embodiment of the present disclosure;

FIG. 3 is a second schematic diagram of a screen signal processing method according to an embodiment of the present disclosure;

FIG. 4 is a third schematic diagram of a screen signal processing method according to an embodiment of the present disclosure;

fig. 5 is a block diagram of a screen signal processing apparatus according to an embodiment of the present application;

fig. 6 is a block diagram of a structure of an electronic device according to an embodiment of the present application;

fig. 7 is a schematic hardware structure diagram of an electronic device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

An embodiment of the first aspect of the present application provides a screen signal processing method, and an execution subject of the technical solution of the screen signal processing method provided in the embodiment of the present application may be a screen signal processing apparatus, and may specifically be determined according to an actual use requirement, and the embodiment of the present application is not limited. In order to more clearly describe the screen signal processing method provided by the embodiment of the present application, the following method embodiment exemplarily illustrates that the execution subject of the screen signal processing method is the screen signal processing apparatus.

The screen signal processing method provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

As shown in fig. 1, an embodiment of the present application provides a screen signal processing method, which may include the following S102 to S106:

s102: a first screen signal of a first screen and a second screen signal of a second screen are acquired.

The screen signal processing method provided by the embodiment of the application is applied to an electronic device including a first screen and a second screen, and the electronic device may be a folding screen mobile phone, a dual-screen mobile phone, a folding screen notebook, a folding screen tablet, and the like, which is not limited specifically herein.

The first screen is in a bright screen state, that is, the first screen is in a normal working state, and the first screen can receive a touch signal of a user. The second screen is in a screen-off state, and the second screen cannot receive the touch signal of the user.

On the basis, it can be understood that the second screen is in the screen-off state, so that the second screen is not interfered by display, and when no abnormal condition exists in the second screen, the second screen can be only considered to be affected by external interference signals such as charging, electromagnetism and unstable grounding. That is, the screen signal detected by the second screen in the screen-off state, i.e., the second screen signal, can be regarded as the noise signal of the second screen.

Furthermore, because the first screen is in a bright screen state, the first screen can receive the touch signal of the user while being influenced by the external interference signal. That is, the screen signal of the first screen, i.e. the first screen signal, includes both the effective screen signal, i.e. the touch signal of the user to the first screen, and the noise signal received by the first screen.

Specifically, in the screen signal processing method provided in the embodiment of the present application, for an electronic device having a first screen and a second screen, when the first screen is in a bright screen state and the second screen is in an off screen state, the first screen and the second screen are synchronously driven to synchronously detect a first screen signal of the first screen and a second screen signal of the second screen, so as to synchronously detect noise signals of the first screen and the second screen, so that the noise signal of the bright screen, that is, the first screen, is determined by the noise signal of the off screen, that is, the second screen.

S104: a target noise signal is determined from the second screen signal.

The second screen signal is a screen signal detected by the second screen in the screen off state, and because the second screen is in the screen off state, the second screen signal can be regarded as a noise signal of the second screen when no abnormal condition exists in the second screen.

Further, it can be understood that the first screen and the second screen are driven synchronously, and the first screen signal and the second screen signal are detected synchronously, so that there is a correlation between the noise signal of the first screen and the noise signal of the second screen detected at the same time. That is, the noise signal in the first screen signal has a correlation with the second screen signal, that is, the second screen in the off-screen state can be used as the noise signal detection device for the first screen in the on-screen state, and the detected noise signal of the second screen is used to determine the noise signal of the first screen in the on-screen state.

Specifically, in the screen signal processing method provided in the embodiment of the present application, after a first screen and a second screen are synchronously detected to obtain a first screen signal of the first screen and a second screen signal of the second screen, the second screen signal is regarded as a noise signal of the second screen, and the second screen signal is analyzed according to a correlation between the noise signals of the first screen and the second screen at the same time to obtain the target noise signal, which is the noise signal of the first screen, so that the noise reduction processing is subsequently performed on the first screen signal through the target noise signal.

S106: and carrying out noise reduction processing on the first screen signal according to the target noise signal.

The first screen signal includes an effective screen signal, i.e., a touch signal of a user to the first screen, and a noise signal received by the first screen because the first screen is in a bright screen state.

Further, the target noise signal is obtained by processing the detected second screen signal, which is the noise signal of the second screen, according to the correlation between the noise signals of the first screen and the second screen at the same time. Therefore, the target noise signal can be regarded as a noise signal of the first screen, and the first screen signal can be subjected to noise reduction processing through the target noise signal to obtain a noise-reduced first screen signal, so that the influence of the noise signal on the first screen in a working state is reduced, and the flexibility of touch work of the first screen is improved.

Specifically, in the screen signal processing method provided in the embodiment of the present application, after the target noise signal that is the noise signal of the first screen is determined according to the second screen signal that is the noise signal of the second screen, the target noise signal is regarded as the noise signal of the first screen, and the first screen signal and the target noise signal are subjected to difference processing to filter the noise signal in the first screen signal, so as to obtain the first screen signal after noise reduction.

According to the screen signal processing method provided by the embodiment of the application, for the electronic equipment with the first screen and the second screen, under the condition that the first screen is bright and the second screen is off, the screen signals of the two display screens, namely the first screen signal and the second screen signal, are detected. It is understood that the screen signal of the off screen may be regarded as a noise signal of the off screen, and the screen signal of the bright screen includes a valid screen signal and a noise signal. On the basis, a target noise signal is determined through a second screen signal which is a screen signal of a second screen which is turned off, the target noise signal is used as a noise signal of a first screen which is turned on, and noise reduction processing is carried out on a first screen signal which is a screen signal of the first screen through the determined target noise signal, so that a first screen signal subjected to noise reduction is obtained. Like this, the noise signal detection device of the first screen of the state of being bright is regarded as to the second screen of the state of turning off the screen, through the screen signal of the second screen of turning off the screen, also be through the noise signal of the second screen of turning off the screen, confirm the noise signal of the first screen of being bright, the accuracy and the real-time of confirming the noise signal of the first screen of being bright have been guaranteed, thereby can effectively filter the noise signal of the first screen of being bright, the interference of noise signal to first screen has been reduced, thereby the touch-control flexibility of first screen has been promoted.

In this embodiment, the S102 may specifically include the following S102a:

s102a: and acquiring a first screen signal of the first screen and acquiring a second screen signal of the second screen according to the target frequency and the target phase.

The target frequency is the signal frequency of the screen scanning signal of the first screen, and the target phase is the signal phase of the screen scanning signal of the first screen.

Specifically, in an actual application process, the first screen and the second screen both perform signal detection according to the target frequency and the target phase, so as to obtain a first screen signal of the first screen and a second screen signal of the second screen through detection.

In an actual application process, in the process of detecting screen signals of the first screen and the second screen, the first screen is on, the second screen is off, and at the moment, the target working frequency point, namely the target frequency, which can be selected by the first screen to work, is sent to the second screen. Meanwhile, the first screen sends a synchronous scanning signal, namely a target synchronous signal, to the second screen, so that the first screen and the second screen perform synchronous driving work according to the target synchronous signal. In this way, the second screen and the first screen can synchronously operate at the same operating frequency and the same operating phase, so that the first screen signal of the first screen and the second screen signal of the second screen are synchronously detected.

It can be understood that the first screen and the second screen perform signal detection according to the same frequency and phase, and the synchronism of the detected first screen signal and the detected second screen signal is ensured. On the basis, the second screen signal is analyzed and processed according to the correlation between the noise signals of the first screen and the second screen at the same moment, so that the obtained noise signal of the first screen, namely the target noise signal, is closer to the actual noise signal in the first screen signal. Therefore, when the first screen signal is subjected to noise reduction processing through the determined target noise signal, the noise signal in the first evaluation signal can be effectively filtered, so that the influence of the noise signal on the first screen signal is reduced, and the flexibility of touch control work on the first screen is improved.

In the foregoing embodiment provided by the present application, in the process of detecting the screen signals of the first screen and the second screen, the first screen signal of the first screen and the second screen signal of the second screen are synchronously obtained according to the signal frequency and the signal phase of the screen scanning signal of the first screen, that is, according to the target frequency and the target phase. Therefore, the first screen and the second screen perform signal detection according to the same frequency and phase synchronization, and the synchronism of the detected first screen signal and the second screen signal is ensured, so that the determined target noise signal is closer to the actual noise signal in the first screen signal. That is, the accuracy and the real-time of determining the noise signal of the first screen with the bright screen are ensured, so that the noise signal of the first screen with the bright screen can be effectively filtered, the interference of the noise signal on the first screen is reduced, and the touch flexibility of the first screen is improved.

In an embodiment of the present invention, the second screen includes a target scanning channel, and on this basis, the step of acquiring the second screen signal of the second screen may specifically include the following S108, and the S104 may specifically include the following S104a to S104c:

s108: and acquiring second channel signals of the target scanning channel in M scanning periods, and determining the second channel signals as second screen signals.

It is understood that the second screen includes a plurality of transverse scanning channels and a plurality of longitudinal scanning channels, and in the embodiment of the present application, the target scanning channel is any one of the plurality of longitudinal scanning channels of the second screen.

Further, M is a positive integer, and in an actual application process, M is associated with the number of longitudinal scanning channels in the first screen.

Specifically, in the process of detecting a second screen signal of the second screen, after receiving a target working frequency point sent by the first screen, the second screen selects one longitudinal scanning channel from a plurality of longitudinal scanning channels according to the target working frequency point as the target scanning channel, and uses the target scanning channel as a scanning channel for performing noise detection on the second screen. On the basis, the target scanning channel is continuously scanned according to the target frequency and the target phase, and channel signals of the target scanning channel in M scanning periods, namely the second channel signals, are obtained.

It can be understood that the second channel signal includes a periodic scanning signal obtained by scanning the target scanning channel in each scanning period, that is, the second channel signal includes M periodic scanning signals, and one periodic scanning signal corresponds to one scanning period. On the basis, the M periodic scanning signals, namely the second channel signals, are determined as second screen signals of a second screen, so that noise signals of the first screen signals, namely the target noise signals, are determined according to the second screen signals.

Illustratively, as shown in fig. 2, in the electronic device, the first screen 202 and the second screen 204 are connected by a synchronization signal line 206 to ensure that the scanning periods of the first screen 202 and the second screen 204 are synchronized. The first screen 202 includes 7 first scanning channels 208, which are respectively denoted as TX0, TX1, TX2, TX3, TX4, TX5, and TX6; the second screen 204 includes 5 second scanning channels 210, which are respectively denoted as TX7, TX8, TX9, TX10, TX11, the first screen 202 includes 9 horizontal scanning channels, namely RX0 to RX8, and the second screen 204 includes 6 horizontal scanning channels, namely RX0 'to RX5'. On this basis, in the process of performing noise detection on the second screen 204, the second screen 204 selects the scanning channel TX9 as the target scanning channel 212 according to the target working frequency point of the first screen 202. Further, the second screen 204 determines a target scanning signal according to the target frequency and the target phase, and performs a continuous scanning operation on the target scanning channel 212 through the target scanning signal. As shown in (b) of fig. 3, the second screen 204 obtains the second channel signal 304 of the target scanning channel 212 in 7 scanning periods, i.e., period 0, period 1, period 2, period 3, period 4, period 5, and period 6, by continuously scanning the scanning channel 212. The second channel signal 304 includes 7 periodic scan signals 306, and one periodic scan signal 306 corresponds to one scan period.

S104a: and performing first processing on the second channel signal in each scanning period to obtain M first target signals.

The M scanning periods correspond to the M first target signals one by one.

Specifically, in the screen signal processing method provided in the embodiment of the present application, in a process of determining a noise signal of a first screen, that is, the target noise signal, according to a second screen signal, for a second channel signal of a target scanning channel obtained by the scanning in M scanning periods, first processing is performed on the second channel signal in each scanning period, that is, on M periodic scanning signals in the second channel signal, so as to obtain M first target signals.

The M first target signals correspond to the M periodic scanning signals one by one, and one first target signal can reflect a noise signal of the second screen in one scanning period.

Further, in an actual application process, the first processing may specifically be mean processing, and M mean signals are obtained by performing mean processing on M periodic scanning signals in the second channel signal, respectively. Wherein one mean value signal represents an average noise signal of the second screen during one scanning period.

S104b: and performing second processing on the M first target signals according to the target mapping relation to obtain M second target signals.

The M first target signals and the M second target signals are in one-to-one correspondence.

Further, the target mapping relationship is an association relationship between the noise signal of the first screen and the noise signal of the second screen detected at the same time at the target working frequency point, and the noise signal of the first screen in each scanning period, that is, the second target signal, can be determined according to the target mapping relationship and the first target signal of the second screen in each scanning period.

It can be understood that due to the difference between the first screen and the second screen in terms of screen size, sensor size, impedance value, etc., the intensity of the noise signals received by the first screen and the second screen is not the same under the same interference condition. However, for each display screen, the impedance of the screen itself is determined, and the impedance of the peripheral circuits of the screen is also determined, and the same external disturbance condition affects the screen in relation to the impedance values of the screen itself and the peripheral circuits. Therefore, in practical applications, a person skilled in the art may determine the target mapping relationship between the noise signals of the first screen and the second screen through multiple experiments.

Specifically, in an actual application process, in a production test stage of a display screen, a person skilled in the art may determine a noise correspondence between the first screen and the second screen at each working frequency point by artificially introducing interference, calibrate the determined noise correspondence through multiple experiments to obtain a target mapping relationship between noise signals of the first screen and the second screen at each working frequency point, and store the target mapping relationship in a storage device of the electronic device, so that the subsequent electronic device directly calls the target mapping relationship.

On this basis, in the screen signal processing method provided in the embodiment of the present application, a target mapping relationship between the noise signal of the first screen and the noise signal of the second screen at the target working frequency point is obtained. On the basis, after M periodic scanning signals in the second channel signals are respectively subjected to first processing to obtain corresponding M first target signals, for each first target signal, the first target signal is subjected to second processing according to the target mapping relation to obtain corresponding second target signals, so that M second target signals are obtained.

S104c: and determining the M second target signals as target noise signals.

Wherein, the second target signal represents the noise signal of the first screen in each scanning period.

On the basis, after the noise signals of the first screen in M scanning periods are obtained, namely after the M second target signals are obtained, the M second target signals are determined as the target noise signals.

Illustratively, for a second screen including 6 transverse scanning channels, signal values of second screen signals detected by the second screen in the period 0 to the period 6 are as shown in table 1 below. Wherein each scanning period contains 6 signal values.

On the basis, 6 signal values in each scanning period are subjected to mean processing according to a rounding principle to obtain a mean signal of the 6 signal values, and thus 7 mean signals '4, 83, 25, 109, -35, 150, -50' corresponding to 7 scanning periods are obtained. Further, determining that the ratio of the second target signal to the mean signal is 1:1, 7 second target signals "4, 83, 25, 109, -35, 150, -50" are obtained, and the 7 second target signals are determined as the target noise signals.

Table 1: second screen signal value

Period 0	Period 1	Period 2	Period 3	Period 4	Period 5	Period 6
							-3	82	20	100	-35	132	-47
2	78	22	107	-33-	138	-45
							3	76	31	100	-28	141	-44
6	81	20	110	-42	159	-57
							2	90	28	119	-39	168	-54
11	88	31	119	-35	163	-52

In the foregoing embodiment provided by the present application, the second screen includes the target scanning channel, obtains the second channel signal of the target scanning channel in M scanning periods, and determines the second channel signal as the second screen signal. On the basis, the second channel signals in each scanning period are subjected to first processing to obtain M first target signals, the M first target signals are subjected to second processing according to a target mapping relation to determine M second target signals, and the M second target signals are determined to be target noise signals. Wherein, M is a positive integer, and M scanning periods, M first target signals and M second target signals are in one-to-one correspondence. Therefore, according to the target mapping relation of the noise signal of the first screen and the noise signal of the second screen under the target frequency, the noise signal of the first screen, namely the target noise signal, is determined, so that the determined target noise signal is closer to the actual noise signal in the first screen signal, the accuracy and the authenticity of the determination of the noise signal of the first screen are ensured, the noise reduction efficiency of the first screen is improved, and the interference of the noise signal on the first screen is reduced.

In an embodiment of the present application, the first screen includes M first scanning channels, and on this basis, the step of acquiring the first screen signal of the first screen may specifically include the following S110, and the S106 may specifically include the following S106a and S106b:

s110: acquiring M first channel signals of M first scanning channels in M scanning periods, and determining the M first channel signals as first screen signals.

It is understood that the first screen includes a plurality of transverse scanning channels and a plurality of longitudinal scanning channels, and in the embodiment of the present application, the first scanning channel is a longitudinal scanning channel of the first screen.

Specifically, in the process of detecting the first screen signal of the first screen, the first screen sequentially scans M first scanning channels according to the target frequency and the target phase, the scanning duration of each first scanning channel is one scanning period, so as to obtain M first channel signals of the M first scanning channels of the first screen in the M scanning periods, and determine the M first channel signals as the first screen signal.

The M scanning periods, the M first scanning channels and the M first channel signals are in one-to-one correspondence. That is, in one scanning period, the first screen performs scanning operation on only one first scanning channel, so as to obtain a first channel signal corresponding to the first scanning channel. That is, the first screen signal has only one first channel signal of the first scan channel in each scan period.

Illustratively, as shown in fig. 2, in the electronic device, the first screen 202 and the second screen 204 are connected by a synchronization signal line 206 to ensure that the scanning periods of the first screen 202 and the second screen 204 are synchronized. Wherein, the first screen 202 includes 7 first scanning channels 208, which are respectively denoted as TX0, TX1, TX2, TX3, TX4, TX5, and TX6; the second screen 204 includes 5 second scanning channels 210, which are denoted as TX7, TX8, TX9, TX10, and TX11, respectively. On this basis, in the process of detecting the signal of the first screen 202, the first screen 202 determines a target scanning signal according to the target frequency and the target phase, and sequentially scans 7 first scanning channels 208 by the target scanning signal, wherein the scanning duration of each first scanning channel 208 is one scanning period. In this way, as shown in (a) in fig. 3, the first screen 202 sequentially performs the scanning operation on the 7 first scanning channels 208, so as to obtain 7 first channel signals 302 of the 7 first scanning channels 208 in 7 scanning periods. One first channel signal 302 corresponds to one scanning period, and one first channel signal 302 corresponds to one first scanning channel 208.

S106a: and performing difference processing on each first channel signal in the first screen signal according to each second target signal in the target noise signals to obtain M third target signals.

The M first channel signals, the M second target signals and the M third target signals are in one-to-one correspondence.

Further, the target noise signal is a noise signal of the first screen in M scanning periods, and the target noise signal includes M second target signals. The M second target signals correspond to the M first scanning channels one to one, and each second target signal represents a noise signal of the first screen in each scanning period, that is, one second target signal represents a noise signal of one first scanning channel.

Furthermore, the first screen signals include M first channel signals, each first channel signal is a screen signal obtained by scanning the first screen in each scanning period, and one first channel signal is a channel signal of one first scanning channel.

On this basis, in the screen signal processing method provided in the embodiment of the present application, after obtaining the first screen signal of the first screen and the target noise signal, for each first channel signal in the first screen signal, performing difference processing on the first channel signal through a second target signal corresponding to the first channel signal in the target noise signal to remove the noise signal in the first channel signal, thereby obtaining a corresponding third target signal.

S106b: and determining the M third target signals as target screen signals.

The third target signal is a signal obtained by performing noise reduction processing on a corresponding first channel signal in the first screen signal.

On the basis, the M third target signals obtained by the noise reduction processing are determined as the first screen signals after noise reduction, namely the target screen signals. Wherein the noise intensity in the target noise signal is smaller than the signal intensity in the first screen signal.

Exemplarily, for a first screen including 9 transverse scanning channels and 7 longitudinal scanning channels, i.e., first scanning channels, signal values of a first screen signal detected by the first screen in the periods 0 to 6 are as shown in the following table 2, and a three-dimensional graph of the first screen signal is as shown in (a) in fig. 4. The first screen signal includes 7 first channel signals, one first channel signal corresponds to one scanning period, and each first channel signal includes 9 signal values.

On this basis, for 9 signal values in each first channel signal, the corresponding second target signal of the above-mentioned target noise signals "4, 83, 25, 109, -35, 150, -50" is subtracted, one first channel signal corresponding to one second target signal. That is, the second target signal value "4" is subtracted from 9 signal values in the first channel signal in the period 0, the second target signal value "83" is subtracted from 9 signal values in the first channel signal in the period 1, the second target signal value "25" is subtracted from 9 signal values in the first channel signal in the period 2, the second target signal value "109" is subtracted from 9 signal values in the first channel signal in the period 3, the second target signal value "-35" is subtracted from 9 signal values in the first channel signal in the period 4, the second target signal value "150" is subtracted from 9 signal values in the first channel signal in the period 5, and the second target signal value "-50" is subtracted from 9 signal values in the first channel signal in the period 6, so as to obtain the target screen signal.

The signal values of the target screen signal in the periods 0 to 6 are shown in table 3 below, and the three-dimensional graph of the target screen signal is shown in (b) of fig. 4. As can be seen from fig. 4, compared to the first screen signal, the signal amplitude of the target screen signal has smaller fluctuation, and the target screen signal changes more regularly. That is, compared to the first screen signal, the noise intensity in the target screen signal is smaller, and the target screen signal is less interfered by the noise signal.

Table 2: first screen signal value

Period 0	Period 1	Period 2	Period 3	Period 4	Period 5	Period 6
							-3	79	24	109	-33	146	-45
3	82	28	108	-33	157	-56
							11	100	67	139	-24	153	-58
10	134	330	440	18	182	-64
							7	169	292	649	157	199	-62
1	130	181	399	35	210	-65
							-2	115	56	179	-37	195	-68
8	123	34	152	-49	214	-62
							8	118	44	154	-51	221	-68

Table 3: target screen signal value

T0	T1	T2	T3	T4	T5	T6
							-7	-4	-1	0	2	-4	5
-1	-1	3	-1	2	7	-6
							7	17	42	30	11	3	-8
6	51	305	331	53	32	-14
							3	86	267	540	192	49	-12
-3	47	156	290	70	60	-15
							-6	32	31	70	-2	45	-18
4	40	9	43	-14	64	-12
							4	35	19	45	-16	71	-18

In the foregoing embodiment, the first screen includes M first scanning channels, M first channel signals of the M first scanning channels in M scanning periods are acquired, and the M first channel signals are determined as the first screen signals. On the basis, according to each second target signal in the target noise signals, difference processing is carried out on each first channel signal in the first screen signals to obtain M third target signals, and the M third target signals are determined as target screen signals. The first scanning channels are used for scanning the first target signals, and the second scanning channels are used for scanning the second target signals. Therefore, for each first channel signal in the first screen signals, noise reduction processing is performed on the first channel signal through a second target signal corresponding to the first channel signal in the target noise signals, noise signals in the first screen signals can be effectively filtered, noise reduction efficiency of the first screen is improved, interference of the noise signals on the first screen is reduced, and therefore touch flexibility of the first screen is improved.

In the embodiment of the present application, the S110 may specifically include the following S110a and S110b, and the S108 may specifically include the following S108a:

s110a: and determining a target scanning signal according to the target frequency and the target phase.

The target frequency and the target phase are determined according to the target working frequency point of the first screen and the target synchronous signal.

Specifically, in the embodiment of the present application, the corresponding target scanning signal is determined according to the target frequency and the target phase. On the basis, in the process of subsequently acquiring second channel signals of the target scanning channel in M scanning periods, continuously scanning the target scanning channel in the second screen through the target scanning signals to obtain the second channel signals of the target scanning channel in M scanning periods. Further, in the process of subsequently acquiring M first channel signals of the M first scanning channels in M scanning periods, the M first scanning channels in the first screen are sequentially scanned by the target scanning signal, so as to obtain M first channel signals of the M first scanning channels in the M scanning periods.

S110b: and sequentially scanning the M first scanning channels through the target scanning signals according to a preset sequence to obtain a first channel signal of each first scanning channel.

The scanning duration of each first scanning channel is a scanning period.

Specifically, in the process of acquiring M first channel signals of M first scanning channels in M scanning periods, the first screen sequentially scans its M first scanning channels through the target scanning signal according to a preset sequence, where a scanning duration of each first scanning channel is one scanning period, so as to obtain M first channel signals of the M first scanning channels of the first screen in the M scanning periods, and determine the M first channel signals as the first screen signals.

The M scanning periods, the M first scanning channels and the M first channel signals are in one-to-one correspondence. That is, in one scanning period, the first screen performs scanning operation on only one first scanning channel, so as to obtain a first channel signal corresponding to the first scanning channel. That is, the first screen signal has only one first channel signal of the first scanning channel in each scanning period

S108a: and circularly scanning the target scanning channel for M times through the target scanning signal according to the scanning period to obtain a second channel signal of the target scanning channel in each scanning period.

Specifically, in the process of acquiring the second channel signal of the target scanning channel in M scanning periods, the second screen performs continuous scanning operation on the target scanning channel through the target scanning signal according to the scanning period to cyclically scan the target scanning channel for M times, so as to obtain the second channel signal of the target scanning channel in M scanning periods.

It can be understood that the second channel signal includes a periodic scanning signal obtained by scanning the target scanning channel in each scanning period, that is, the second channel signal includes M periodic scanning signals, and one periodic scanning signal corresponds to one scanning period.

According to the embodiment provided by the application, the target scanning signal is determined according to the target frequency and the target phase, and then the M first scanning channels are sequentially scanned through the target scanning signal according to the preset sequence, and the scanning duration of each first scanning channel is the scanning period, so as to obtain the first channel signal of each first scanning channel. Meanwhile, according to the scanning period, circularly scanning the target scanning channel for M times through the target scanning signal to obtain a second channel signal of the target scanning channel in each scanning period. Therefore, the first screen and the second screen both carry out signal scanning work through the target scanning signal, and the synchronism of the detected first screen signal and the detected second screen signal is guaranteed, so that the accuracy and the real-time performance of determining the noise signal of the first screen, namely the target noise signal, are guaranteed, the follow-up efficiency of noise reduction processing on the first screen is improved, the interference of the noise signal on the first screen is reduced, and the touch flexibility of the first screen is improved.

In the embodiment of the present application, before the above S102, the above screen signal processing method may further include the following S100 and S101:

s100: and performing touch screen detection on the second screen.

Specifically, in the screen signal processing method provided in the embodiment of the present application, before a first screen signal of a first screen and a second screen signal of a second screen are obtained, touch screen detection is further performed on the second screen in a screen-off state, so as to determine an operating state of the second screen according to a touch screen detection result.

S101: and under the condition that the touch screen detection result meets the preset condition, controlling the second screen to perform screen scanning work, and under the condition that the touch screen detection result does not meet the preset condition, controlling the second screen to stop performing screen scanning work.

The preset condition is used for indicating that the second screen is in a normal working state.

Specifically, in the screen signal processing method provided in the embodiment of the present application, before a first screen signal of a first screen and a second screen signal of a second screen are obtained, touch screen detection is performed on the second screen in a screen-off state. On the basis, under the condition that the touch screen detection result of the second screen meets the preset condition, the fact that no abnormal condition exists in the second screen is indicated, at the moment, the second screen continues to perform screen scanning work, and the second screen signal which is the noise signal of the second screen is scanned and detected. Further, when the touch screen detection result of the second screen does not meet the preset condition, it is indicated that an abnormal condition exists inside the second screen, and at this time, the second screen stops performing screen scanning operation, that is, the second screen does not perform scanning detection on its own noise signal.

According to the embodiment provided by the application, before the first screen signal of the first screen and the second screen signal of the second screen are obtained, touch screen detection is performed on the second screen, the second screen is controlled to perform screen scanning work under the condition that the touch screen detection result shows that the second screen is in a normal working state, and the second screen is controlled to stop performing screen scanning work under the condition that the touch screen detection result shows that the second screen is in an abnormal working state. Therefore, under the condition that the second screen is in a normal working state, namely under the condition that no abnormal problem exists in the second screen, the second screen scans and detects the noise signal of the second screen, namely the second screen signal, the influence on the second screen signal caused by the internal problem interference of the second screen is avoided, the accuracy of the detection of the second screen signal is ensured, the accuracy of the follow-up noise reduction processing on the first screen signal is ensured, the interference of the noise signal on the first screen is reduced, and the touch flexibility of the first screen is improved.

In the screen signal processing method provided by the embodiment of the first aspect of the present application, the execution subject may be a screen signal processing apparatus. In the embodiment of the present application, the screen signal processing apparatus provided in the second aspect of the present application is described by taking the screen signal processing apparatus as an example to execute the screen signal processing method.

As shown in fig. 5, an embodiment of the present application provides a screen signal processing apparatus 500 for an electronic device including a first screen and a second screen, and the screen signal processing apparatus 500 may include a processing unit 502 described below.

The processing unit 502 is configured to obtain a first screen signal of the first screen and a second screen signal of the second screen when the first screen is in a bright screen state and the second screen is in a dead screen state;

a processing unit 502, further configured to determine a target noise signal according to the second screen signal;

the processing unit 502 is further configured to perform noise reduction processing on the first screen signal according to the target noise signal.

Through the screen signal processing device provided by the embodiment of the application, for the electronic equipment with the first screen and the second screen, under the condition that the first screen is bright and the second screen is off, the screen signals of the two display screens, namely the first screen signal and the second screen signal, are detected. It is understood that the screen signal of the off-screen can be regarded as a noise signal of the off-screen, and the screen signal of the on-screen includes a valid screen signal and a noise signal. On the basis, a target noise signal is determined through a second screen signal which is a screen signal of a second screen which is turned off, the target noise signal is used as a noise signal of a first screen which is turned on, and noise reduction processing is carried out on a first screen signal which is a screen signal of the first screen through the determined target noise signal, so that a first screen signal subjected to noise reduction is obtained. Like this, the noise signal detection device of the first screen of the state of being bright is regarded as to the second screen of the state of turning off the screen, through the screen signal of the second screen of turning off the screen, also be through the noise signal of the second screen of turning off the screen, confirm the noise signal of the first screen of being bright, the accuracy and the real-time of confirming the noise signal of the first screen of being bright have been guaranteed, thereby can effectively filter the noise signal of the first screen of being bright, the interference of noise signal to first screen has been reduced, thereby the touch-control flexibility of first screen has been promoted.

In this embodiment of the present application, the processing unit 502 is specifically configured to: acquiring a first screen signal of a first screen and a second screen signal of a second screen according to the target frequency and the target phase; the target frequency is a signal frequency of a screen scanning signal of the first screen, and the target phase is a signal phase of the screen scanning signal of the first screen.

In the above embodiment provided by the present application, in the process of detecting the screen signals of the first screen and the second screen, the first screen signal of the first screen and the second screen signal of the second screen are synchronously obtained according to the signal frequency and the signal phase of the screen scanning signal of the first screen, that is, according to the target frequency and the target phase. Therefore, the first screen and the second screen perform signal detection according to the same frequency and phase synchronization, and the synchronism of the detected first screen signal and the second screen signal is ensured, so that the determined target noise signal is closer to the actual noise signal in the first screen signal. That is, the accuracy and the real-time of determining the noise signal of the first screen with the bright screen are ensured, so that the noise signal of the first screen with the bright screen can be effectively filtered, the interference of the noise signal to the first screen is reduced, and the touch flexibility of the first screen is improved.

In this embodiment of the application, the second screen includes a target scanning channel, and the processing unit 502 is specifically configured to: acquiring second channel signals of the target scanning channel in M scanning periods, and determining the second channel signals as second screen signals; performing first processing on the second channel signal in each scanning period to obtain M first target signals; performing second processing on the M first target signals according to the target mapping relation to obtain M second target signals; determining the M second target signals as target noise signals; wherein, M is a positive integer, and M scanning periods, M first target signals and M second target signals are in one-to-one correspondence.

In the foregoing embodiment provided by the present application, the second screen includes the target scanning channel, obtains the second channel signal of the target scanning channel in M scanning periods, and determines the second channel signal as the second screen signal. On the basis, the second channel signals in each scanning period are subjected to first processing to obtain M first target signals, the M first target signals are subjected to second processing according to a target mapping relation to obtain M second target signals, and the M second target signals are determined to be target noise signals. Wherein, M is a positive integer, and M scanning periods, M first target signals and M second target signals are in one-to-one correspondence. Therefore, according to the target mapping relation of the noise signal of the first screen and the noise signal of the second screen under the target frequency, the noise signal of the first screen, namely the target noise signal, is determined, so that the determined target noise signal is closer to the actual noise signal in the first screen signal, the accuracy and the authenticity of the determination of the noise signal of the first screen are ensured, the noise reduction efficiency of the first screen is improved, and the interference of the noise signal on the first screen is reduced.

In this embodiment of the application, the first screen includes M first scanning channels, and the processing unit 502 is specifically configured to: acquiring M first channel signals of M first scanning channels in M scanning periods, and determining the M first channel signals as first screen signals; according to each second target signal in the target noise signals, performing difference processing on each first channel signal in the first screen signals to obtain M third target signals; determining the M third target signals as target screen signals; the first scanning channels are used for scanning the first target signals, and the second scanning channels are used for scanning the second target signals.

In this embodiment of the present application, the processing unit 502 is specifically configured to: determining a target scanning signal according to the target frequency and the target phase; sequentially scanning M first scanning channels through a target scanning signal according to a preset sequence to obtain a first channel signal of each first scanning channel, wherein the scanning duration of each first scanning channel is a scanning period; and circularly scanning the target scanning channel for M times through the target scanning signal according to the scanning period to obtain a second channel signal of the target scanning channel in each scanning period.

In this embodiment of the application, before acquiring the first screen signal of the first screen and the second screen signal of the second screen, the processing unit 502 is further configured to: touch screen detection is carried out on the second screen; controlling the second screen to perform screen scanning work under the condition that the touch screen detection result meets the preset condition, and controlling the second screen to stop performing the screen scanning work under the condition that the touch screen detection result does not meet the preset condition; the preset condition is used for indicating that the second screen is in a normal working state.

According to the embodiment of the application, before the first screen signal of the first screen and the second screen signal of the second screen are obtained, touch screen detection is performed on the second screen, the second screen is controlled to perform screen scanning work under the condition that the touch screen detection result shows that the second screen is in a normal working state, and the second screen is controlled to stop performing screen scanning work under the condition that the touch screen detection result shows that the second screen is in an abnormal working state. Therefore, under the condition that the second screen is in a normal working state, namely under the condition that no abnormal problem exists in the second screen, the second screen scans and detects the noise signal of the second screen, namely the second screen signal, the influence on the second screen signal caused by the internal problem interference of the second screen is avoided, the accuracy of detecting the second screen signal is ensured, the accuracy of subsequently performing noise reduction processing on the first screen signal is ensured, the interference of the noise signal on the first screen is reduced, and the touch control flexibility of the first screen is improved.

The screen signal processing apparatus 500 in the embodiment of the present application may be an electronic device, and may also be a component in the electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal, or may be a device other than a terminal. The electronic Device may be, for example, a Mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted electronic Device, a Mobile Internet Device (MID), an Augmented Reality (AR)/Virtual Reality (VR) Device, a robot, a wearable Device, an ultra-Mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and may also be a server, a Network Attached Storage (Network Attached Storage, NAS), a personal computer (NAS), a Television (TV), an assistant, a teller machine, a self-service machine, and the like, and the embodiments of the present application are not limited in particular.

The screen signal processing apparatus 500 in the embodiment of the present application may be an apparatus having an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which is not specifically limited in the embodiment of the present application.

The screen signal processing apparatus 500 provided in the second aspect of the present application can implement each process implemented in the method embodiment of fig. 1, and for avoiding repetition, details are not described here again.

Optionally, as shown in fig. 6, an electronic device 600 is further provided in an embodiment of the present application, and includes a processor 602 and a memory 604, where the memory 604 stores a program or an instruction that can be executed on the processor 602, and when the program or the instruction is executed by the processor 602, the steps of the embodiment of the screen signal processing method in the first aspect are implemented, and the same technical effects can be achieved, and are not repeated here to avoid repetition.

It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic device and the non-mobile electronic device described above.

Fig. 7 is a schematic diagram of a hardware structure of an electronic device implementing the embodiment of the present application.

The electronic device 700 includes, but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710.

Those skilled in the art will appreciate that the electronic device 700 may also include a power supply (e.g., a battery) for powering the various components, and the power supply may be logically coupled to the processor 710 via a power management system, such that the functions of managing charging, discharging, and power consumption may be performed via the power management system. The electronic device structure shown in fig. 7 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description is omitted here.

The electronic device 700 of the embodiment of the present application may be configured to implement the steps of the foregoing screen signal processing method of the first aspect.

The processor 710 is configured to obtain a first screen signal of the first screen and a second screen signal of the second screen when the first screen is in a bright screen state and the second screen is in a dead screen state.

The processor 710 is also configured to determine a target noise signal based on the second screen signal.

The processor 710 is further configured to perform a noise reduction process on the first screen signal according to the target noise signal.

In the embodiment of the application, for the electronic device with the first screen and the second screen, under the condition that the first screen is on and the second screen is off, the screen signals of the two display screens, namely the first screen signal and the second screen signal, are detected. It is understood that the screen signal of the off-screen can be regarded as a noise signal of the off-screen, and the screen signal of the on-screen includes a valid screen signal and a noise signal. On the basis, a target noise signal is determined through a second screen signal which is a screen signal of a second screen which is turned off, the target noise signal is used as a noise signal of a first screen which is turned on, and noise reduction processing is carried out on a first screen signal which is a screen signal of the first screen through the determined target noise signal, so that a first screen signal subjected to noise reduction is obtained. Like this, the noise signal detection device of the first screen of the state of being bright is regarded as to the second screen of the state of turning off the screen, through the screen signal of the second screen of turning off the screen, also be through the noise signal of the second screen of turning off the screen, confirm the noise signal of the first screen of being bright, the accuracy and the real-time of confirming the noise signal of the first screen of being bright have been guaranteed, thereby can effectively filter the noise signal of the first screen of being bright, the interference of noise signal to first screen has been reduced, thereby the touch-control flexibility of first screen has been promoted.

Optionally, the processor 710 is specifically configured to: acquiring a first screen signal of a first screen and a second screen signal of a second screen according to the target frequency and the target phase; the target frequency is the signal frequency of the screen scanning signal of the first screen, and the target phase is the signal phase of the screen scanning signal of the first screen.

In the foregoing embodiment provided by the present application, in the process of detecting the screen signals of the first screen and the second screen, the first screen signal of the first screen and the second screen signal of the second screen are synchronously obtained according to the signal frequency and the signal phase of the screen scanning signal of the first screen, that is, according to the target frequency and the target phase. Therefore, the first screen and the second screen perform signal detection according to the same frequency and phase synchronization, the synchronism of the detected first screen signal and the second screen signal is ensured, and the determined target noise signal is closer to the actual noise signal in the first screen signal. That is, the accuracy and the real-time of determining the noise signal of the first screen with the bright screen are ensured, so that the noise signal of the first screen with the bright screen can be effectively filtered, the interference of the noise signal to the first screen is reduced, and the touch flexibility of the first screen is improved.

Optionally, the second screen includes a target scanning channel, and the processor 710 is specifically configured to: acquiring second channel signals of a target scanning channel in M scanning periods, and determining the second channel signals as second screen signals; performing first processing on the second channel signal in each scanning period to obtain M first target signals; performing second processing on the M first target signals according to the target mapping relation, and determining M second target signals; determining the M second target signals as target noise signals; wherein, M is a positive integer, and M scanning periods, M first target signals and M second target signals are in one-to-one correspondence.

Optionally, the first screen includes M first scanning channels, and the processor 710 is specifically configured to: acquiring M first channel signals of M first scanning channels in M scanning periods, and determining the M first channel signals as first screen signals; according to each second target signal in the target noise signals, performing difference processing on each first channel signal in the first screen signals to obtain M third target signals; determining the M third target signals as target screen signals; the first scanning channels are used for scanning the first target signals, and the second scanning channels are used for scanning the second target signals.

In the above embodiment provided by the present application, the first screen includes M first scanning channels, M first channel signals of the M first scanning channels in M scanning periods are acquired, and the M first channel signals are determined as the first screen signals. On the basis, according to each second target signal in the target noise signals, difference processing is carried out on each first channel signal in the first screen signals to obtain M third target signals, and the M third target signals are determined as target screen signals. The first scanning channels are used for scanning the first target signals, and the second scanning channels are used for scanning the second target signals. Therefore, for each first channel signal in the first screen signals, noise reduction processing is performed on the first channel signal through a second target signal corresponding to the first channel signal in the target noise signals, noise signals in the first screen signals can be effectively filtered, noise reduction efficiency of the first screen is improved, interference of the noise signals on the first screen is reduced, and therefore touch flexibility of the first screen is improved.

Optionally, the processor 710 is specifically configured to: determining a target scanning signal according to the target frequency and the target phase; sequentially scanning M first scanning channels through a target scanning signal according to a preset sequence to obtain a first channel signal of each first scanning channel, wherein the scanning duration of each first scanning channel is a scanning period; and circularly scanning the target scanning channel for M times through the target scanning signal according to the scanning period to obtain a second channel signal of the target scanning channel in each scanning period.

According to the embodiment provided by the application, the target scanning signal is determined according to the target frequency and the target phase, and then the M first scanning channels are sequentially scanned through the target scanning signal according to the preset sequence, and the scanning duration of each first scanning channel is the scanning period, so as to obtain the first channel signal of each first scanning channel. Meanwhile, according to the scanning period, circularly scanning the target scanning channel for M times through the target scanning signal to obtain a second channel signal of the target scanning channel in each scanning period. Therefore, the first screen and the second screen both carry out signal scanning work through the target scanning signal, and the synchronism of the first screen signal and the second screen signal obtained through detection is guaranteed, so that the accuracy and the real-time performance of the noise signal of the first screen, namely the target noise signal determination are guaranteed, the follow-up efficiency of noise reduction processing on the first screen is improved, the interference of the noise signal on the first screen is reduced, and the touch control flexibility of the first screen is improved.

Optionally, before acquiring the first screen signal of the first screen and the second screen signal of the second screen, the processor 710 is further configured to: touch screen detection is carried out on the second screen; controlling the second screen to perform screen scanning work under the condition that the touch screen detection result meets the preset condition, and controlling the second screen to stop performing screen scanning work under the condition that the touch screen detection result does not meet the preset condition; the preset condition is used for indicating that the second screen is in a normal working state.

According to the embodiment of the application, before the first screen signal of the first screen and the second screen signal of the second screen are obtained, touch screen detection is performed on the second screen, the second screen is controlled to perform screen scanning work under the condition that the touch screen detection result shows that the second screen is in a normal working state, and the second screen is controlled to stop performing screen scanning work under the condition that the touch screen detection result shows that the second screen is in an abnormal working state. Therefore, under the condition that the second screen is in a normal working state, namely under the condition that no abnormal problem exists in the second screen, the second screen scans and detects the noise signal of the second screen, namely the second screen signal, the influence on the second screen signal caused by the internal problem interference of the second screen is avoided, the accuracy of the detection of the second screen signal is ensured, the accuracy of the follow-up noise reduction processing on the first screen signal is ensured, the interference of the noise signal on the first screen is reduced, and the touch flexibility of the first screen is improved.

It should be understood that in the embodiment of the present application, the input Unit 704 may include a Graphics Processing Unit (GPU) 7041 and a microphone 7042, and the Graphics Processing Unit 7041 processes image data of still pictures or videos obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also referred to as a touch screen. The touch panel 7071 may include two portions, a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

The memory 709 may be used to store software programs as well as various data. The memory 709 may mainly include a first storage area for storing a program or an instruction and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or an instruction (such as a sound playing function, an image playing function, and the like) required by at least one function, and the like. Further, the memory 709 may include volatile memory or nonvolatile memory, or the memory 709 may include both volatile and nonvolatile memory.

The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM), a Static Random Access Memory (Static RAM, SRAM), a Dynamic Random Access Memory (Dynamic RAM, DRAM), a Synchronous Dynamic Random Access Memory (Synchronous DRAM, SDRAM), a Double Data Rate Synchronous Dynamic Random Access Memory (Double Data Rate SDRAM, ddr SDRAM), an Enhanced Synchronous SDRAM (ESDRAM), a Synchronous Link DRAM (SLDRAM), and a Direct Memory bus RAM (DRRAM). The memory 709 in the embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

Processor 710 may include one or more processing units; optionally, the processor 710 integrates an application processor, which mainly handles operations related to the operating system, user interface, application programs, etc., and a modem processor, which mainly handles wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into processor 710.

An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the process of the embodiment of the screen signal processing method according to the first aspect is implemented, and the same technical effect can be achieved, and in order to avoid repetition, details are not repeated here.

The processor is the processor in the electronic device in the above embodiment. Readable storage media include computer readable storage media such as computer read only memory ROM, random access memory RAM, magnetic or optical disks, and the like.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction, to implement each process of the screen signal processing method embodiment of the first aspect, and achieve the same technical effect, and in order to avoid repetition, the description is omitted here.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.

Embodiments of the present application provide a computer program product, where the program product is stored in a storage medium, and the program product is executed by at least one processor to implement the processes of the foregoing first aspect of the embodiment of the screen signal processing method, and achieve the same technical effects, and in order to avoid repetition, details are not repeated here.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one of 8230, and" comprising 8230does not exclude the presence of additional like elements in a process, method, article, or apparatus comprising the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application or portions thereof that contribute to the prior art may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes several instructions for enabling a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) to execute the method of the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A screen signal processing method for an electronic device including a first screen and a second screen, the screen signal processing method comprising:

under the condition that the first screen is in a bright screen state and the second screen is in a dead screen state, acquiring a first screen signal of the first screen and a second screen signal of the second screen;

determining a target noise signal according to the second screen signal;

and carrying out noise reduction processing on the first screen signal according to the target noise signal.

2. The screen signal processing method according to claim 1, wherein said acquiring a first screen signal of the first screen and a second screen signal of the second screen comprises:

acquiring a first screen signal of the first screen and a second screen signal of the second screen according to the target frequency and the target phase;

the target frequency is a signal frequency of a screen scanning signal of the first screen, and the target phase is a signal phase of the screen scanning signal of the first screen.

3. The screen signal processing method of claim 2, wherein the second screen comprises a target scanning channel, and the acquiring the second screen signal of the second screen comprises:

acquiring second channel signals of the target scanning channel in M scanning periods, and determining the second channel signals as second screen signals;

the determining a target noise signal according to the second screen signal includes:

performing first processing on the second channel signal in each scanning period to obtain M first target signals;

performing second processing on the M first target signals according to a target mapping relation to obtain M second target signals;

determining the M second target signals as the target noise signals;

wherein, M is a positive integer, and the M scanning periods, the M first target signals and the M second target signals are in one-to-one correspondence.

4. The screen signal processing method according to claim 3, wherein the first screen includes M first scanning channels, and the acquiring the first screen signal of the first screen includes:

acquiring M first channel signals of the M first scanning channels in the M scanning periods, and determining the M first channel signals as the first screen signals;

the performing noise reduction processing on the first screen signal according to the target noise signal includes:

performing difference processing on each first channel signal in the first screen signals according to each second target signal in the target noise signals to obtain M third target signals;

determining the M third target signals as the target screen signals;

wherein, the M scan periods, the M first scan channels, the M first channel signals, the M second target signals, and the M third target signals are in one-to-one correspondence.

5. The screen signal processing method according to claim 3, wherein said acquiring M first channel signals of the M first scanning channels in the M scanning periods comprises:

determining a target scanning signal according to the target frequency and the target phase;

sequentially scanning the M first scanning channels through the target scanning signals according to a preset sequence to obtain a first channel signal of each first scanning channel, wherein the scanning duration of each first scanning channel is the scanning period;

the acquiring second channel signals of the target scanning channel in M scanning periods includes:

and circularly scanning the target scanning channel for M times through the target scanning signal according to the scanning period to obtain a second channel signal of the target scanning channel in each scanning period.

6. The screen signal processing method according to any one of claims 1 to 5, wherein before acquiring the first screen signal of the first screen and the second screen signal of the second screen, the screen signal processing method further comprises:

performing touch screen detection on the second screen;

controlling the second screen to perform screen scanning work under the condition that a touch screen detection result meets a preset condition, and controlling the second screen to stop performing the screen scanning work under the condition that the touch screen detection result does not meet the preset condition;

7. A screen signal processing apparatus for an electronic device including a first screen and a second screen, the screen signal processing apparatus comprising:

the processing unit is used for acquiring a first screen signal of the first screen and a second screen signal of the second screen under the condition that the first screen is in a bright screen state and the second screen is in a screen-off state;

the processing unit is further used for determining a target noise signal according to the second screen signal;

the processing unit is further configured to perform noise reduction processing on the first screen signal according to the target noise signal.

8. The screen signal processing apparatus of claim 7, wherein the processing unit is specifically configured to:

9. The screen signal processing apparatus of claim 8, wherein the second screen comprises a target scan channel, the processing unit being specifically configured to:

determining the M second target signals as the target noise signals;

10. The screen signal processing apparatus of claim 9, wherein the first screen includes M first scanning channels, and the processing unit is specifically configured to:

according to each second target signal in the target noise signals, performing difference processing on each first channel signal in the first screen signals to obtain M third target signals;

determining the M third target signals as the target screen signals;

11. The screen signal processing device of claim 9, wherein the processing unit is specifically configured to:

12. The screen signal processing apparatus according to any one of claims 7 to 11, wherein, before acquiring the first screen signal of the first screen and the second screen signal of the second screen, the processing unit is further configured to:

performing touch screen detection on the second screen;

13. An electronic device comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions when executed by the processor implementing the steps of the screen signal processing method of any one of claims 1 to 6.