CN112987906A - Method and device for reducing display power consumption - Google Patents
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- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/325—Power saving in peripheral device
- G06F1/3265—Power saving in display device
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
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Abstract
The method for reducing display power consumption is applied to a touch terminal, and comprises the following steps: responding to touch operation of a target image currently displayed by the touch terminal, and determining position information of a touch area corresponding to the touch operation on a display screen according to original touch data corresponding to the touch operation; determining an update image for updating the target image based on the location information; the resolution of the updated image is equal to the physical resolution of the display screen, and the pixel value of each pixel point in a first area corresponding to the touch area in the updated image is 0; and updating the target image by using the updated image so that a display panel of the touch terminal closes a pixel light-emitting unit corresponding to the first area when the updated image is displayed. The method and the device for reducing the display power consumption can reduce the display power consumption under the condition of not influencing the user experience.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a method and an apparatus for reducing display power consumption.
Background
In recent years, with the development of terminal technology, the physical resolution of the display screen of the touch terminal is higher and larger. Meanwhile, the display power consumption of the touch terminal is also getting larger and larger, and how to reduce the display power consumption becomes a problem to be solved urgently at present.
Disclosure of Invention
The present disclosure provides a method and apparatus for reducing display power consumption to solve the disadvantages of the related art.
According to a first aspect of the embodiments of the present disclosure, there is provided a method for reducing display power consumption, the method being applied to a touch terminal, the method including:
responding to touch operation of a target image currently displayed by the touch terminal of the equipment, and determining position information of a touch area corresponding to the touch operation on a display screen according to original touch data corresponding to the touch operation;
determining an update image for updating the target image based on the location information update; the resolution of the updated image is equal to the physical resolution of the display screen, and the pixel value of each pixel point in a first area corresponding to the touch area in the updated image is 0;
and updating the target image by using the updated image so as to close the pixel light-emitting unit corresponding to the first area when the display panel of the touch terminal of the equipment displays the updated image.
According to a second aspect of the embodiments of the present disclosure, there is provided an apparatus for reducing display power consumption, the apparatus being applied to a touch terminal, the apparatus including a determining module, an updating module, and a processing module; wherein the content of the first and second substances,
the determining module is used for responding to touch operation of a target image currently displayed by the touch terminal and determining position information of a touch area corresponding to the touch operation on a display screen according to original touch data corresponding to the touch operation;
the updating module is used for determining an updating image used for updating the target image based on the position information; the resolution of the updated image is equal to the physical resolution of the display screen, and the pixel value of each pixel point in a first area corresponding to the touch area in the updated image is 0;
and the processing module is used for updating the target image by using the updated image so as to close the pixel light-emitting unit corresponding to the first area when the display panel of the touch terminal displays the updated image.
According to a third aspect of the embodiments of the present disclosure, there is provided a touch terminal including
A central processing unit CPU;
a memory for storing CPU executable instructions;
wherein the CPU is configured to implement the method of any one of the methods provided by the first aspect of the present disclosure according to a fourth aspect of embodiments of the present disclosure, there is provided a touch terminal comprising:
a display driver;
a memory for storing processor-executable instructions;
wherein the display driver is configured to implement any of the methods provided by the first aspect of the disclosure
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
as can be seen from the foregoing embodiments, the method and apparatus for reducing display power consumption provided by the present disclosure, in response to a touch operation on a target image currently displayed by a touch terminal, determine, according to original touch data corresponding to the touch operation, location information of a touch area corresponding to the touch operation on a display screen, and determine, based on the location information, an update image for updating the target image; and then, updating the target image by using the updated image so as to close the pixel light-emitting unit corresponding to the first area when the display panel of the touch terminal displays the updated image. Therefore, the pixel light-emitting unit corresponding to the touch area can be closed, and the purpose of reducing power consumption is achieved. In addition, since the turned-off pixel light-emitting units are pixel light-emitting units corresponding to the touch area, that is, the partial image that is not displayed is a partial image that is blocked by the user, the user experience is not affected at this time.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a flow chart illustrating a method of reducing display power consumption according to an exemplary embodiment of the present disclosure;
FIG. 2 is a flow chart illustrating a method of reducing display power consumption according to an exemplary embodiment of the present disclosure;
FIG. 3 is a schematic diagram illustrating touch operations according to an exemplary embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a touch image corresponding to the embodiment shown in FIG. 3;
FIG. 5 is an implementation schematic diagram of a composite updated image shown in accordance with an exemplary embodiment of the present disclosure;
FIG. 6 is a flow chart illustrating a method of reducing display power consumption according to an exemplary embodiment of the present disclosure;
FIG. 7 is a schematic diagram illustrating an apparatus for reducing display power consumption according to an exemplary embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of a touch terminal shown in accordance with an exemplary embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
FIG. 1 is a flow chart illustrating a method of reducing display power consumption according to an exemplary embodiment of the present disclosure. Referring to fig. 1, the method provided in this embodiment is applied to a touch terminal, and the method may include:
s101, responding to a touch operation of a target image currently displayed by the touch terminal, and determining position information of a touch area corresponding to the touch operation on a display screen according to original touch data corresponding to the touch operation.
Specifically, the method provided by this embodiment may be executed by a central processing unit CPU in the touch terminal, or may be executed by a display driver in the touch terminal. In the present embodiment, the number of components is not limited. In addition, when the method is executed by the display driver, the data transmission between the CPU and the display driver can be reduced, the expense of the CPU is saved, and the burden of the CPU is reduced.
It should be noted that, when the touch sensor in the touch terminal detects a touch operation, a touch event is reported to the CPU. Further, when the method is executed by a CPU, the CPU may execute the method when a touch event reported by the touch sensor is detected. In addition, when the method is executed by a display driver, the display driver may execute the method when receiving a notification message issued by a CPU, and the notification message may be a notification message sent to the display driver when the CPU detects a touch event reported by a touch sensor.
In addition, the raw touch data corresponding to the touch operation may be raw data reported by the touch sensor. Further, the position information of the touch area corresponding to the touch operation on the display screen may be pixel coordinates of each touch point in the touch area corresponding to the touch operation on the display screen or pixel coordinates of a boundary touch point of the touch area corresponding to the touch operation on the display screen. In the present embodiment, this is not limited.
In particular, the touch area may be determined based on the raw touch data (see the description of the related art for the relevant process), and further, the touch coordinates of each touch point in the touch area corresponding to the touch operation on the touch screen can be mapped onto the display screen (for a specific implementation principle of the mapping, see the description in the related art), the pixel coordinates of each touch point in the touch area corresponding to the touch operation on the display screen are obtained, and finally, determining the pixel coordinates of each touch point in the touch area corresponding to the touch operation on the display screen as the position information of the touch area corresponding to the touch operation on the display screen, or determining the pixel coordinates of the boundary touch point in the touch area corresponding to the touch operation on the display screen as the position information of the touch area of the touch operation on the display screen.
S102, determining an updating image for updating the target image based on the position information; and the resolution of the updated image is equal to the physical resolution of the display screen, and the pixel value of each pixel point in the first area corresponding to the touch area in the updated image is 0.
In a specific implementation, the target image may be scaled first, so that the resolution of the scaled target image is equal to the physical resolution of the display screen. Further, the pixel value of each pixel point in the first region corresponding to the touch region in the zoomed target image is updated to 0, and an updated image is obtained.
The first area corresponding to the touch area in the target image refers to an area of which the position information matches the position information of the touch area corresponding to the touch operation on the display screen. For example, when the position information of the touch area corresponding to the touch operation on the display screen is the pixel coordinates of each touch point in the touch area corresponding to the touch operation on the display screen, at this time, the first area may be an area formed by pixel points in the target image, the pixel coordinates of which are equal to the first pixel coordinates (the pixel coordinates of each touch point in the touch area corresponding to the touch operation on the display screen). For another example, when the position information of the touch area corresponding to the touch operation on the display screen is the pixel coordinates of the boundary touch point in the touch area corresponding to the touch operation on the display screen, at this time, the first area may be an area surrounded by pixel points in the target image whose pixel coordinates are equal to the second pixel coordinates (the pixel coordinates of the boundary touch point in the touch area corresponding to the touch operation on the display screen).
And S103, updating the target image by using the updated image so that the pixel light-emitting unit corresponding to the target area is closed when the display panel of the touch terminal displays the updated image.
It should be noted that, when the method is executed by the CPU, a specific implementation process of this step may be to issue an update image to the display driver, so as to instruct the display driver to send the update image to the display panel for display.
When the method is executed by a display driver, the step may be implemented by sending the updated image to the display panel for display.
It should be noted that the display panel includes pixel light-emitting units arranged in an array, and when the display panel displays the updated image, for the first region, since the pixel value of each pixel point in the first region is 0, when the display panel actually displays the updated image, the pixel light-emitting unit corresponding to the first region (the pixel light-emitting unit whose position matches the position of the first region) is turned off, and the pixel light-emitting unit is not allowed to emit light.
In response to a touch operation on a target image currently displayed by the touch terminal of the device, the method provided by this embodiment determines, according to original touch data corresponding to the touch operation, position information of a touch area corresponding to the touch operation on a display screen, and determines, based on the position information, an update image for updating the target image; wherein, the obtained resolution of the updated image is equal to the physical resolution of the display screen, and the updated image is obtained; and the pixel value of each pixel point in a first area corresponding to the touch area in the updated image is 0, and the target image updated by using the updated image is updated to the updated image, so that the pixel light-emitting unit corresponding to the first area is closed when the updated image is displayed on the display panel of the touch terminal of the device. Therefore, the pixel light-emitting unit corresponding to the touch area can be closed, and the purpose of reducing power consumption is achieved. In addition, since the turned-off pixel light-emitting units are pixel light-emitting units corresponding to the touch area, that is, the partial image that is not displayed is a partial image that is blocked by the user, the user experience is not affected at this time.
FIG. 2 is a flow chart illustrating a method of reducing display power consumption according to an exemplary embodiment of the present disclosure. Referring to fig. 2, on the basis of the above embodiment, determining an update image for updating the target image based on the position information includes:
s201, generating a touch image for displaying the touch area according to the position information and the physical resolution of the display screen; and the resolution of the touch image is equal to the physical resolution, and the pixel value of each pixel point in the second area matched with the position information in the touch image is equal to a first preset value.
Specifically, when the position information of the touch area corresponding to the touch operation on the display screen is the pixel coordinates of each touch point in the touch area corresponding to the touch operation on the display screen, at this time, the second area may be an area formed by pixel points in the touch image, the pixel coordinates of which are equal to the first pixel coordinates (the pixel coordinates of each touch point in the touch area corresponding to the touch operation on the display screen). When the position information of the touch area corresponding to the touch operation on the display screen is the pixel coordinates of the boundary touch point in the touch area corresponding to the touch operation on the display screen, at this time, the second area may touch an area surrounded by pixel points of which the pixel coordinates in the image are equal to the second pixel coordinates (the pixel coordinates of the boundary touch point in the touch area corresponding to the touch operation on the display screen).
In addition, the first preset value is set according to actual needs. In this embodiment, the specific value of the first preset value is not limited. For example, in one embodiment, the first preset value may be 0.
Further, in an embodiment, a pixel value of any pixel point in the touch image except the second area may be equal to a second preset value. Wherein the second preset value is different from the first preset value. For example, in one embodiment, the second preset value may be 255.
For example, fig. 3 is a schematic diagram illustrating touch operations according to an exemplary embodiment of the present disclosure. FIG. 4 is a schematic diagram of a touch image corresponding to the embodiment shown in FIG. 3. Referring to fig. 3 and 4, the touch image is used to show the touch area.
S202, synthesizing the updated image based on the touch image and the target image.
FIG. 5 is an implementation schematic diagram of a composite updated image shown in accordance with an exemplary embodiment of the present disclosure. Referring to fig. 5, in a specific implementation, the process of synthesizing the updated image may include:
(1) determining the pixel value of any update pixel point in a target area corresponding to the second area in the update image as 0;
(2) and aiming at any updating pixel point except the target area in the updating image, determining the pixel value of the target pixel point corresponding to the updating pixel point in the target image as the pixel value of the updating pixel point.
Specifically, the target pixel point corresponding to the updated pixel point in the target image refers to a pixel point whose pixel coordinate is equal to the pixel coordinate of the updated pixel point.
The method provided by this embodiment provides an implementation method for determining an updated image based on the position information, and by this method, an updated image with a shielding region (the aforementioned first region) can be generated, and further, the target image can be updated by using the updated image, so that when the display panel of the touch terminal displays the updated image, the pixel light-emitting units corresponding to the shielding region are turned off, and the purpose of reducing display power consumption is achieved.
A more specific example is given below to illustrate the technical solution of the present disclosure in detail:
FIG. 6 is a flow chart illustrating a method of reducing display power consumption according to an exemplary embodiment of the present disclosure. Referring to fig. 6, the method provided in this embodiment is applied to a touch terminal, and is executed by a display driver on the touch terminal, where the method includes:
s601, responding to a touch operation of a target image currently displayed by the touch terminal, acquiring original touch data corresponding to the touch operation from a touch driver, and determining position information of a touch area corresponding to the touch operation on a display screen according to the original touch data corresponding to the touch operation.
S602, generating a touch image for displaying the touch area according to the position information and the physical resolution; and the resolution of the touch image is equal to the physical resolution, and the pixel value of each pixel point in the second area corresponding to the position information in the touch image is equal to a first preset value.
S603, synthesizing the updated image based on the touch image and the target image; and the pixel value of each pixel point in the first area corresponding to the touch area in the updated image is 0.
S604, sending the updated image to a display panel for displaying so that the pixel light-emitting unit corresponding to the first area is closed when the display panel of the touch terminal displays the updated image.
For the specific implementation process and implementation principle of steps S601 to S604, reference may be made to the description in the foregoing embodiments, and details are not described here.
The method provided by the embodiment executes the method for reducing the display power consumption through the display driver, so that the burden of the central processing unit can be reduced, and the expense of the central processing unit is saved.
Alternatively, when the method provided by the present disclosure is performed by a display driver, the display driver may be integrated in the same chip as the touch driver. For example, the display driver and the touch driver are integrated in a TTDI chip. Therefore, when the display driver and the touch driver are integrated in the same chip, the display driver and the touch driver share the storage space, the display driver and the touch driver are in direct communication, the display driver can directly read original touch data, the original touch data do not need to be acquired from the touch driver through a central processing unit, the data transmission process can be avoided, the transmission burden is reduced, and the power consumption of the touch terminal can be further saved.
Corresponding to the embodiment of the method for reducing the display power consumption, the disclosure also provides an embodiment of a device for reducing the display power consumption.
Fig. 7 is a schematic structural diagram illustrating an apparatus for reducing display power consumption according to an exemplary embodiment of the present disclosure. Referring to fig. 7, the apparatus provided in this embodiment may include a determining module 710, an updating module 720, and a processing module 730; wherein the content of the first and second substances,
the determining module 710 is configured to, in response to a touch operation on a target image currently displayed by the touch terminal, determine, according to original touch data corresponding to the touch operation, position information of a touch area corresponding to the touch operation on a display screen;
the updating module 720 is configured to determine an updated image for updating the target image based on the location information; the resolution of the updated image is equal to the physical resolution of the display screen, and the pixel value of each pixel point in a first area corresponding to the touch area in the updated image is 0;
the processing module 730 is configured to update the target image with the updated image, so that when the display panel of the touch terminal displays the updated image, the pixel light-emitting unit corresponding to the first area is turned off.
The apparatus of this embodiment may be used to implement the technical solution of the method embodiment shown in fig. 1, and the implementation principle and technical effect of the apparatus may refer to the description in the foregoing embodiments, which are not described herein again.
Further, the updating module 720 is specifically configured to generate a touch image for displaying the touch area according to the position information and the physical resolution of the display screen, and synthesize the updated image based on the touch image and the target image; and the resolution of the touch image is equal to the physical resolution, and the pixel value of each pixel point in the second area matched with the position information in the touch image is equal to a first preset value.
Further, said synthesizing the updated image based on the touch image and the target image comprises:
determining the pixel value of any update pixel point in a target area corresponding to the second area in the update image as 0;
and aiming at any updating pixel point except the target area in the updating image, determining the pixel value of the target pixel point corresponding to the updating pixel point in the target image as the pixel value of the updating pixel point.
With regard to the apparatus in the above embodiments, the specific manner in which each module performs operations has been described in detail in the embodiments of the related method, and will not be described in detail here.
For the device embodiments, since they substantially correspond to the method embodiments, reference may be made to the partial description of the method embodiments for relevant points. The above-described embodiments of the apparatus are merely illustrative, wherein the modules described as separate parts may or may not be physically separate, and the parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the disclosed solution. One of ordinary skill in the art can understand and implement it without inventive effort.
An embodiment of the present disclosure further provides a touch terminal, including:
a central processing unit CPU;
a memory for storing CPU executable instructions;
wherein the CPU is configured to implement the method of any of the above embodiments.
An embodiment of the present disclosure also provides a touch terminal, including:
a display driver;
a memory for storing processor-executable instructions;
wherein the display driver is configured to implement the method of any of the above embodiments.
Further, the display driver and the touch driver of the touch terminal are integrated in the same chip.
Fig. 8 is a schematic structural diagram of a touch terminal shown in accordance with an exemplary embodiment of the present disclosure. For example, the touch terminal may be a mobile phone, a tablet device, or the like.
Referring to fig. 8, the touch terminal 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.
The processing component 802 generally controls overall operation of the touch terminal 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.
The memory 804 is configured to store various types of data to support operations in the touch terminal 800. Examples of such data include instructions for any application or method operating on touch terminal 800, contact data, phonebook data, messages, pictures, videos, and the like. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The power components 806 provide power to the various components of the touch terminal 800. The power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the touch terminal 800.
The multimedia component 808 includes a screen providing an output interface between the touch terminal 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. When the touch terminal 800 is in an operation mode, such as a photographing mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive an external audio signal when the touch terminal 800 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.
The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The communication component 816 is configured to facilitate wired or wireless communication between the touch terminal 800 and other devices. The touch terminal 800 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, 4G LTE, 5G NR, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the touch terminal 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the methods described in any of the above embodiments.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 820 of the touch terminal 800 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (11)
1. A method for reducing display power consumption is applied to a touch terminal, and comprises the following steps:
responding to touch operation of a target image currently displayed by the touch terminal, and determining position information of a touch area corresponding to the touch operation on a display screen according to original touch data corresponding to the touch operation;
determining an update image for updating the target image based on the location information; the resolution of the updated image is equal to the physical resolution of the display screen, and the pixel value of each pixel point in a first area corresponding to the touch area in the updated image is 0;
and updating the target image by using the updated image so that a display panel of the touch terminal closes a pixel light-emitting unit corresponding to the first area when the updated image is displayed.
2. The method of claim 1, wherein determining an updated image for updating the target image based on the location information comprises:
generating a touch image for displaying the touch area according to the position information and the physical resolution of the display screen; the resolution of the touch image is equal to the physical resolution, and the pixel value of each pixel point in a second area, matched with the position information, in the touch image is equal to a first preset value;
synthesizing the update image based on the touch image and the target image.
3. The method of claim 2, wherein synthesizing an updated image based on the touch image and the target image comprises:
determining the pixel value of any update pixel point in a target area corresponding to the second area in the update image as 0;
and aiming at any updating pixel point except the target area in the updating image, determining the pixel value of the target pixel point corresponding to the updating pixel point in the target image as the pixel value of the updating pixel point.
4. The method of claim 1, wherein the touch terminal comprises a Central Processing Unit (CPU), a display driver and a touch driver;
the determining, according to the original touch data corresponding to the touch operation, position information of a touch area corresponding to the touch operation on a display screen, and determining, based on the position information, an update image for updating the target image, includes:
the CPU determines position information of a touch area corresponding to the touch operation on a display screen based on the original touch data acquired from the touch driver, and determines an update image for updating the target image based on the position information;
the updating the target image with the update image includes:
and the CPU sends the updated image to the display driver so as to instruct the display driver to send the updated image to the display panel for displaying.
5. The method of claim 1, wherein the touch terminal comprises a display driver and a touch driver;
the determining, according to the original touch data corresponding to the touch operation, position information of a touch area corresponding to the touch operation on a display screen, and determining an update image for updating the target image based on the position information, includes:
the display driver determines position information of a touch area corresponding to the touch operation on a display screen based on the original touch data acquired from the touch driver, and determines an update image for updating the target image based on the position information;
the updating the target image with the update image includes:
and the display driver sends the updated image to the display panel for displaying.
6. The method of claim 5, wherein the display driver and the touch driver are integrated in the same chip.
7. The device for reducing the display power consumption is applied to a touch terminal and comprises a determining module, an updating module and a processing module; wherein the content of the first and second substances,
the determining module is used for responding to touch operation of a target image currently displayed by the touch terminal and determining position information of a touch area corresponding to the touch operation on a display screen according to original touch data corresponding to the touch operation;
the updating module is used for determining an updating image used for updating the target image based on the position information; the resolution of the updated image is equal to the physical resolution of the display screen, and the pixel value of each pixel point in a first area corresponding to the touch area in the updated image is 0;
and the processing module is used for updating the target image by using the updated image so as to close the pixel light-emitting unit corresponding to the first area when the display panel of the touch terminal displays the updated image.
8. The apparatus according to claim 7, wherein the update module is specifically configured to generate a touch image for displaying the touch area according to the position information and a physical resolution of the display screen, and synthesize the update image based on the touch image and the target image; and the resolution of the touch image is equal to the physical resolution, and the pixel value of each pixel point in the second area matched with the position information in the touch image is equal to a first preset value.
9. A touch terminal is characterized by comprising
A central processing unit CPU;
a memory for storing CPU executable instructions;
wherein the CPU is configured to implement the method of any of claims 1 to 3.
10. A touch terminal, comprising:
a display driver;
a memory for storing processor-executable instructions;
wherein the display driver is configured to implement the method of any of claims 1 to 3.
11. The touch terminal of claim 10, wherein the display driver is integrated in the same chip as a touch driver of the touch terminal.
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