CN113571027A - Control method and device for display screen of electronic equipment, electronic equipment and storage medium - Google Patents
Control method and device for display screen of electronic equipment, electronic equipment and storage medium Download PDFInfo
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- CN113571027A CN113571027A CN202010357325.0A CN202010357325A CN113571027A CN 113571027 A CN113571027 A CN 113571027A CN 202010357325 A CN202010357325 A CN 202010357325A CN 113571027 A CN113571027 A CN 113571027A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
- G09G2320/064—Adjustment of display parameters for control of overall brightness by time modulation of the brightness of the illumination source
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The disclosure relates to a control method and device for a display screen of electronic equipment, the electronic equipment and a storage medium. The method comprises the following steps that a light sensor is arranged below the display screen: determining the pulse duration of the driving pulse according to the detection time required by single ambient light detection of the light sensor; the driving pulse is used for driving the display screen pixel to emit light; the light sensor is used for detecting the brightness of the environment light in a time period when the display screen has no driving pulse; determining pulse voltage according to display brightness and pulse duration required by a display screen; and driving the display screen according to the determined pulse voltage and pulse duration. According to the technical scheme of the embodiment of the disclosure, the light sensation sensor has enough time to perform ambient light detection by adjusting the pulse voltage and the pulse duration of the driving pulse, and meanwhile, the display screen can also achieve enough display brightness.
Description
Technical Field
The present disclosure relates to the field of electronic technologies, and in particular, to a method and an apparatus for controlling a display screen of an electronic device, and a storage medium.
Background
With the development of electronic technology, a full-screen has been increasingly applied to electronic products such as mobile phones. In order to adapt to the application of a full-face screen, a light sensor, an image acquisition device and the like are arranged inside a display screen, and the functions of signal acquisition and the like are realized at the gap of display pixels. However, in the development trend of a display screen with high refresh rate and high resolution, how to keep the detection accuracy of the under-screen optical sensor under a good display screen without being affected by the display screen becomes one of the technical problems to be solved urgently.
Disclosure of Invention
The disclosure provides a control method and device for a display screen of an electronic device, the electronic device and a storage medium.
According to a first aspect of the embodiments of the present disclosure, there is provided a method for controlling a display screen of an electronic device, the display screen having a light sensor thereunder, the method including:
determining the pulse duration of the driving pulse according to the detection duration required by single ambient light detection of the light sensor; the driving pulse is used for driving the display screen pixel to emit light; the light sensor is used for detecting the ambient light brightness in a time period when the display screen does not have the action of the driving pulse;
determining pulse voltage according to the display brightness required by the display screen and the pulse duration;
and driving the display screen according to the determined pulse voltage and the determined pulse duration.
In some embodiments, one refresh period of said display screen corresponds to one said drive pulse;
the determining of the pulse duration of the driving pulse according to the detection duration required by the single ambient light detection of the light sensor comprises the following steps:
determining the pulse duration according to the detection time required by single ambient light detection of the light sensor and the time difference between the refreshing cycles; wherein the pulse duration is less than or equal to the time difference.
In some embodiments, the determining the pulse voltage according to the display brightness required by the display screen and the pulse duration includes:
determining the pulse voltage required by the display screen to reach the display brightness according to the pulse duration; wherein an integral value of the pulse voltage within the pulse duration is positively correlated with the display luminance.
In some embodiments, the detection time required for a single ambient light detection of the light-sensitive sensor comprises: the light sensor detects an ambient light signal and obtains the time required by the ambient light brightness according to the integral value of the ambient light signal.
In some embodiments, the method further comprises:
determining the state of the light sensor;
the determining of the pulse duration of the driving pulse according to the detection duration required by the single ambient light detection of the light sensor comprises the following steps:
and if the light sensation sensor is in an open state, determining the pulse duration of the driving pulse according to the detection time required by single ambient light detection of the light sensation sensor.
In some embodiments, the method further comprises:
and if the light sensor is in a closed state, determining the pulse duration of the driving pulse according to the display brightness required by the display screen and a preset pulse voltage value.
According to a second aspect of the embodiments of the present disclosure, there is provided a control device of a display screen having a light-sensing sensor thereunder, the device including:
according to a second aspect of the embodiments of the present disclosure, there is provided a control device for a display screen of an electronic device, the display screen having a light sensor thereunder, the device comprising:
the first determining module is used for determining the pulse duration of the driving pulse according to the detection time required by single ambient light detection of the light sensor; the driving pulse is used for driving the display screen pixel to emit light; the light sensor is used for detecting the ambient light brightness in a time period when the display screen does not have the action of the driving pulse;
the second determining module is used for determining pulse voltage according to the display brightness required by the display screen and the pulse duration;
and the driving module is used for driving the display screen according to the determined pulse voltage and the determined pulse duration.
In some embodiments, one refresh period of said display screen corresponds to one said drive pulse;
the first determining module is specifically configured to:
determining the pulse duration according to the detection time required by single ambient light detection of the light sensor and the time difference between the refreshing cycles; wherein the pulse duration is less than or equal to the time difference.
In some embodiments, the second determining module is specifically configured to:
determining the pulse voltage required by the display screen to reach the display brightness according to the pulse duration; wherein an integral value of the pulse voltage within the pulse duration is positively correlated with the display luminance.
In some embodiments, the detection time required for a single ambient light detection of the light-sensitive sensor comprises: the light sensor detects an ambient light signal and obtains the time required by the ambient light brightness according to the integral value of the ambient light signal.
In some embodiments, the apparatus further comprises:
the third determining module is used for determining the state of the light sensor;
the first determining module is specifically configured to:
and if the light sensation sensor is in an open state, determining the pulse duration of the driving pulse according to the detection time required by single ambient light detection of the light sensation sensor.
In some embodiments, the apparatus further comprises:
and the fourth determining module is used for determining the pulse duration of the driving pulse according to the display brightness required by the display screen and a preset pulse voltage value if the light sensor is in a closed state.
According to a third aspect of embodiments of the present disclosure, there is provided an electronic apparatus including at least: a processor and a memory for storing executable instructions operable on the processor, wherein:
and when the processor is used for executing the executable instructions, the executable instructions execute the steps in the control method of the display screen of the electronic equipment.
According to a fourth aspect of the embodiments of the present disclosure, there is provided a non-transitory computer-readable storage medium having stored therein computer-executable instructions, which when executed by a processor, implement the steps in the method for controlling a display screen of an electronic device according to any one of the above.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: according to the technical scheme of the embodiment of the disclosure, the pulse voltage and the pulse duration of the driving pulse for driving the display screen are determined together according to the detection time of the light sensor and the display brightness required by the display screen. The light sensor detects in the time period without pulse driving, so that the light sensor can have enough time to detect the ambient light once by the method, thereby reducing the interference of the display brightness on the light sensor; meanwhile, the display screen is driven by the pulse voltage which is determined according to the pulse duration and can meet the brightness required by display, and the display screen can have enough display brightness. Therefore, through the scheme of the embodiment of the disclosure, the display of the display screen and the detection accuracy of the light sensor can both have a good effect.
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 invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a first flowchart illustrating a method of controlling a display screen in accordance with an exemplary embodiment;
FIG. 2 is a first waveform schematic of a drive pulse in accordance with an exemplary embodiment;
FIG. 3 is a flowchart II illustrating a method of controlling a display screen in accordance with an exemplary embodiment;
FIG. 4 is a flowchart illustrating a method of controlling a display screen in accordance with an exemplary embodiment;
FIG. 5 is a second waveform schematic of a drive pulse in accordance with an exemplary embodiment;
FIG. 6 is a block diagram illustrating the structure of a control device for a display screen in accordance with an exemplary embodiment;
FIG. 7 is a block diagram illustrating a physical structure of an electronic device in accordance with an exemplary embodiment.
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 embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Fig. 1 is a flowchart illustrating a control method of a display screen according to an exemplary embodiment, which is applied to an electronic device having a display screen and a light-sensing sensor located below the display screen, and as shown in fig. 1, the method includes the following steps:
step S101, determining the pulse duration of a driving pulse according to the detection duration required by single ambient light detection of the light sensor; the driving pulse is used for driving the display screen pixel to emit light; the light sensor is used for detecting the ambient light brightness in a time period when the display screen does not have the action of the driving pulse;
step S102, determining pulse voltage according to the display brightness required by the display screen and the pulse duration;
and S103, driving the display screen according to the determined pulse voltage and the determined pulse duration.
In the embodiment of the disclosure, the light sensor is located below the display screen of the electronic device, and the ambient light signal is collected through the display surface of the display screen in the gap between the display pixels. Since the light emitted by the display pixels of the display screen is also within the field angle range of the light-sensitive sensor, the light-sensitive sensor in the embodiment of the disclosure detects in the time period when the display pixels do not emit light.
The drive pulses may be voltage signals occurring at intervals, the pulse voltage representing the amplitude of the drive pulse, and the pulse duration being the pulse width of the drive pulse. The display pixels of the display screen can be driven by a fast-refresh drive pulse, each display pixel of the display screen emitting light under the action of the drive pulse and stopping emitting light without the action of the drive pulse. Due to the characteristic of persistence of vision of human eyes, even if the pixels stop emitting light during the display process, the human eyes do not feel flickering but see a continuously bright display picture due to the high refreshing frequency. When the driving pulse acts on the display pixel, the display pixel can emit light and achieve certain display brightness under the action of the driving voltage lasting for a period of time. Therefore, the required display brightness can be provided for the display screen under the action of the driving voltage with a certain pulse duration.
It will be appreciated that since a display pixel is essentially a transistor made of light-emitting material, variations in the drive voltage and pulse duration can affect the drive of the display pixel, i.e. at a fixed pulse duration, the greater the drive voltage, the brighter the display pixel; and at a fixed drive voltage, the longer the drive duration (within a certain range), the brighter the display pixel. Therefore, different driving voltages and pulse durations can correspond to different display brightness.
In the embodiments of the present disclosure, the light sensor is located in the display screen, for example, in the gap between the display pixels or under the display screen, and the ambient light passing through the cover glass of the screen from the top of the screen to the light sensor is collected through the gap between the display pixels.
In one embodiment, the display surface of the screen faces the exterior of the device. Therefore, in the embodiment of the present disclosure, the adjustment of the driving Pulse combines PAM (Pulse Amplitude Modulation) and PWM (Pulse Width Modulation). The pulse voltage and the pulse duration of the driving voltage are determined according to the display brightness required by the display screen and the detection duration required by the light sensor, so that the display screen achieves the required display brightness, and meanwhile, the light sensor has enough detection time.
Furthermore, in other embodiments, since the performance of the light-sensitive sensor is constant, a fixed pulse duration may also be set according to the light-sensitive sensor. When the display screen pixel is driven to emit light with the required brightness, the pulse voltage is adjusted according to the required display brightness. I.e. the drive pulses are adjusted in a PAM only manner.
In some embodiments, as shown in fig. 2, one refresh period T of the display screen corresponds to one of the driving pulses P;
as shown in fig. 3, in the step S101, the determining the pulse duration of the driving pulse according to the detection time required by the single ambient light detection of the photo sensor includes:
step S301, determining the pulse duration according to the detection time required by single ambient light detection of the light sensor and the time difference between the refreshing periods; wherein the pulse duration is less than or equal to the time difference.
The driving pulse may be a high level in a driving signal having periodicity, and the driving pulse of the high level appears in the driving signal when the pixel is driven to display; at other times, the driving signal is low or the voltage value is 0, and the display pixel is turned off. A drive pulse corresponding to one or a row of pixels occurs once per refresh period, driving the corresponding pixel to charge and emit light. Therefore, the period of the driving pulse is determined by the refresh period of the display panel, which may be a fixed period during the display of the picture.
Therefore, the duration of the no-drive pulse action is determined according to the detection duration required by the single ambient light detection of the light sensor, and the duration of the no-drive pulse action cannot be smaller than the detection duration. And then the corresponding pulse duration can be determined according to the refresh period. Of course, the pulse duration can be adjusted according to other factors, but the detection duration must not be exceeded, so as to ensure that the light sensor has enough detection duration.
In some embodiments, in step S102, the determining the pulse voltage according to the display brightness required by the display screen and the pulse duration includes:
step S302, determining the pulse voltage required by the display screen to reach the display brightness according to the pulse duration; wherein an integral value of the pulse voltage within the pulse duration is positively correlated with the display luminance.
Since the display screen needs to display a certain brightness, the duration of the driving pulse is limited by the detection duration. Therefore, the pulse voltage can be adjusted here according to the display brightness required by the display screen. Because the display signal of the display pixel is a pulse voltage lasting for a period of time, the brightness of the display pixel is positively correlated with the integral value of the display signal in the pulse duration, namely, in a fixed pulse duration, the larger the pulse voltage is, the higher the display brightness is; at a fixed pulse voltage, the longer the pulse duration, the higher the display brightness. Therefore, in the case of determining the duration of the pulse, the driving voltage can be proportionally adjusted according to the required display brightness, so that the display screen presents the required display brightness.
In some embodiments, the detection time required for a single ambient light detection of the light-sensitive sensor comprises: the light sensor detects an ambient light signal and obtains the time required by the ambient light brightness according to the integral value of the ambient light signal.
In the embodiment of the disclosure, the light sensor collects ambient light signals through the light sensing element, and through integration processing for a certain time, detection data corresponding to brightness can be obtained, and through conversion of an algorithm, the detection data is processed to obtain ambient light brightness data with a brightness unit. That is to say, the light sensor needs to collect the ambient light signal for the first time and perform integration processing, and the instantaneous detection cannot obtain accurate ambient light data. Therefore, the detection time required for the single ambient light detection is the time required for the light sensor to perform the integration processing once to obtain the ambient light brightness.
In some embodiments, as shown in fig. 4, the method further comprises:
step S401, determining the state of the light sensor;
in the step S101, determining the pulse duration of the driving pulse according to the detection time required by the single ambient light detection of the light sensor includes:
step S402, if the light sensor is in an open state, determining the pulse duration of the driving pulse according to the detection duration required by single ambient light detection of the light sensor.
Since the light sensor does not always need to be turned on and used, the state of the light sensor may be determined first when the driving signal is adjusted, and if the light sensor is in the on state, the steps in the above embodiment are adopted to determine the pulse voltage and the pulse duration of the driving pulse according to the detection duration required by the light sensor and the display brightness required by the display screen.
When the light sensor detects ambient light, the pulse duration of a single refresh period needs to be limited to a short time to provide sufficient detection duration for the light sensor. Therefore, if the photo sensor is turned on during the display process and starts to detect the ambient light, the pulse duration (i.e., pulse width) is correspondingly shortened, and in order to maintain the brightness of the display screen, the driving voltage needs to be correspondingly increased, and the display pixels are driven by the increased driving voltage, so as to achieve the required display brightness.
In some embodiments, the method further comprises:
step S403, if the light sensor is in the off state, determining the pulse duration of the driving pulse according to the display brightness and the predetermined pulse voltage value required by the display screen.
If the light sensor is in the off state, the detection time of the light sensor does not need to be considered when the driving pulse is adjusted. Thus, a fixed pulse voltage value can be predetermined, while the pulse duration is adjusted according to the display brightness desired for the display screen. That is, the driving pulse is adjusted in a PWM manner, so as to drive the display panel to achieve the required display brightness. Therefore, the display screen can have higher display brightness without higher driving voltage, and partial driving power is saved. In addition, because a higher driving voltage is not needed at this time, the display pixels have enough charging time, so that the required display brightness can be achieved under the action of the driving pulse, and the driving voltage can be always maintained in a certain voltage range or a fixed voltage value at this time, and the driving voltage does not need to be increased, so that the difficulty of driving the display pixels is reduced.
In addition, in the display screen, in the area without the light sensor, the driving pulse can be adjusted by adopting the PWM mode without considering the detection time of the light sensor. That is, the display screen can adopt different modulation modes to adjust the driving pulse in different regions.
Of course, in the area where the light sensor is in the off state or there is no light sensor, the driving pulse may be adjusted by using PAM or PAM in combination with PWM only according to the display brightness required by the display screen. The modulation method adopted by these situations can be set according to actual requirements, and is not limited here.
Embodiments of the present disclosure also provide the following examples:
as the display screen gradually tends to the design requirements of high resolution and high refresh rate, the light sensor under the screen carries out ambient light detection in the period of time when the pixels are extinguished in the process of refreshing the display screen. Therefore, the light sensor has difficulty in obtaining a sufficiently long detection time period, and the detection accuracy is easily lowered. The high refresh rate results in a reduction in the integration time of the photosensor and an increase in the pixel density results in a reduction in the area that is transparent. For example, at a resolution of 120Hz (hertz) and 2K, the detection accuracy of the full-screen light-sensing sensor under the screen is greatly reduced.
Therefore, in the embodiment of the present disclosure, a PAM and PWM combination manner is adopted for the driving pulse of the display screen, so that the driving voltage of the driving pulse of the display pixel of the display screen is increased, and meanwhile, the pulse width, that is, the duration of the pulse, can be reduced, so that the pixel has a longer off time period, thus the light sensor obtains a longer detection time, and the interference of the detected data on the display screen is reduced, thereby improving the detection accuracy.
In the related art, there are two types of display panels, PWM and DC (direct current) dimming. DC dimming displays different brightness by switching the intensity of a driving voltage or a driving current for driving a pixel at different refresh periods, and the pixel may emit light for a long time in a bright screen. Therefore, data detected by the light sensor in this mechanism is interfered by the display pixels, and when ambient light detection is performed, ambient light brightness data in the detected data needs to be extracted through a complex algorithm in combination with display brightness.
The light emitting mechanism of the PWM display panel is that the pixels have a period of time on and a period of time off during each refresh period. The change of the visual brightness of the display screen is adjusted by changing the length of the bright time. Switching between on and off is achieved by controlling the TFT (Thin Film Transistor) switches in series with the OLED (Organic Light-Emitting Diode) pixels. The light sensor may detect during a period of time when the pixel is off.
However, PWM dimming differs in the duration, i.e., pulse width, of the drive pulse of a pixel at different display brightness. Therefore, if a bright picture is required to be displayed, the time for the pixels to be turned off may be short enough that the light sensor detects accurate ambient light brightness.
Therefore, in the embodiments of the present disclosure, the adjustment of a part of the pulse width is replaced by adjusting the driving voltage of the driving pulse, i.e., the amplitude of the driving pulse. That is, for a high-luminance picture, a higher driving voltage can be provided without excessively increasing the pulse duration, thereby providing a longer detection time for the photosensor.
As shown in fig. 5, the refresh period of the display panel is T, the driving voltage V1 required by the PWM method is low under the requirement of a certain display brightness, and the pulse duration T1 is long. Thus, the light-sensitive sensor can perform a single detection for a period of time T1 — T1. And the driving voltage V for PAM mode is V2, V2 > V1, the pulse duration is T2 < T1, therefore, the time length for which the light sensor can perform single detection is T2-T2, and T2 > T1. Therefore, the PAM mode can provide more detection time for the light sensor.
If the display screen needs higher display brightness, the pulse duration can be increased by adopting a PWM mode appropriately, and meanwhile, the driving voltage can also be increased by adopting a PAM mode. Thus, even if the pulse duration increases, the pulse duration is limited by the detection time period required for the light-sensitive sensor, so that the detection of the light-sensitive sensor is not affected.
By the method, the display screen can achieve enough display brightness, and meanwhile, the detection accuracy of the light sensor is not affected. Meanwhile, compared with a DC dimming display screen, the data of the environment light brightness can be obtained accurately without carrying out complex algorithm processing on the detection data of the light sensor.
Fig. 6 is a block diagram illustrating a control device of a display screen according to an exemplary embodiment. Referring to fig. 6, the display screen has a light sensor thereunder, and the apparatus 600 includes:
the first determining module 601 is configured to determine a pulse duration of the driving pulse according to a detection duration required by single ambient light detection of the light sensor; the driving pulse is used for driving the display screen pixel to emit light; the light sensor is used for detecting the ambient light brightness in a time period when the display screen does not have the action of the driving pulse;
a second determining module 602, configured to determine a pulse voltage according to the display brightness required by the display screen and the pulse duration;
and a driving module 603, configured to drive the display screen according to the determined pulse voltage and the determined pulse duration.
In some embodiments, one refresh period of said display screen corresponds to one said drive pulse;
the first determining module is specifically configured to:
determining the pulse duration according to the detection time required by single ambient light detection of the light sensor and the time difference between the refreshing cycles; wherein the pulse duration is less than or equal to the time difference.
In some embodiments, the second determining module is specifically configured to:
determining the pulse voltage required by the display screen to reach the display brightness according to the pulse duration; wherein an integral value of the pulse voltage within the pulse duration is positively correlated with the display luminance.
In some embodiments, the detection time required for a single ambient light detection of the light-sensitive sensor comprises: the light sensor detects an ambient light signal and obtains the time required by the ambient light brightness according to the integral value of the ambient light signal.
In some embodiments, the apparatus further comprises:
the third determining module is used for determining the state of the light sensor;
the first determining module is specifically configured to:
and if the light sensation sensor is in an open state, determining the pulse duration of the driving pulse according to the detection time required by single ambient light detection of the light sensation sensor.
In some embodiments, the apparatus further comprises:
and the fourth determining module is used for determining the pulse duration of the driving pulse according to the display brightness required by the display screen and a preset pulse voltage value if the light sensor is in a closed state.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Fig. 7 is a block diagram illustrating a physical structure of an electronic device 700, according to an example embodiment. For example, the electronic device 700 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a gaming console, a tablet device, a medical device, an exercise device, a personal digital assistant, and so forth.
Referring to fig. 7, electronic device 700 may include one or more of the following components: processing components 701, memory 702, power components 703, multimedia components 704, audio components 705, input/output (I/O) interfaces 706, sensor components 707, and communication components 708.
The processing component 701 generally controls the overall operation of the electronic device 700, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. Processing components 701 may include one or more processors 710 to execute instructions to perform all or a portion of the steps of the methods described above. Further, processing component 701 may also include one or more modules that facilitate interaction between processing component 701 and other components. For example, the processing component 701 may include a multimedia module to facilitate interaction between the multimedia component 704 and the processing component 701.
The memory 710 is configured to store various types of data to support operations at the electronic device 700. Examples of such data include instructions for any application or method operating on the electronic device 700, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 702 may be implemented by any type or combination of volatile or non-volatile storage 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 supply component 703 provides power to the various components of the electronic device 700. The power supply components 703 may include: a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for electronic device 700.
The multimedia component 704 includes a screen that provides an output interface between the electronic device 700 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 704 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the electronic device 700 is in an operation mode, such as a photographing mode or a video mode. Each front camera and/or rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 705 is configured to output and/or input audio signals. For example, the audio component 705 includes a Microphone (MIC) configured to receive external audio signals when the electronic device 700 is in an operational 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 710 or transmitted via the communication component 708. In some embodiments, audio component 705 also includes a speaker for outputting audio signals.
The I/O interface 706 provides an interface between the processing component 701 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 sensor component 707 includes one or more sensors for providing various aspects of state assessment for the electronic device 700. For example, the sensor assembly 707 may detect an open/closed state of the electronic device 700, the relative positioning of components, such as a display and keypad of the electronic device 700, the sensor assembly 707 may also detect a change in the position of the electronic device 700 or a component of the electronic device 700, the presence or absence of user contact with the electronic device 700, orientation or acceleration/deceleration of the electronic device 700, and a change in the temperature of the electronic device 700. The sensor component 707 may include a proximity sensor configured to detect the presence of a nearby object in the absence of any physical contact. The sensor assembly 707 can also include a light-sensitive sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 707 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 708 is configured to facilitate wired or wireless communication between the electronic device 700 and other devices. The electronic device 700 may access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 708 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 708 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, or other technologies.
In an exemplary embodiment, the electronic device 700 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 above-described methods.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 702 comprising instructions, executable by the processor 710 of the electronic device 700 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.
A non-transitory computer readable storage medium having instructions therein, which when executed by a processor of a mobile terminal, enable the mobile terminal to perform any of the methods provided in the above embodiments.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention 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 invention is limited only by the appended claims.
Claims (14)
1. A control method for a display screen of an electronic device is characterized in that a light sensor is arranged below the display screen, and the method comprises the following steps:
determining the pulse duration of the driving pulse according to the detection duration required by single ambient light detection of the light sensor; the driving pulse is used for driving the display screen pixel to emit light; the light sensor is used for detecting the ambient light brightness in a time period when the display screen does not have the action of the driving pulse;
determining pulse voltage according to the display brightness required by the display screen and the pulse duration;
and driving the display screen according to the determined pulse voltage and the determined pulse duration.
2. A method according to claim 1, wherein one refresh cycle of said display screen corresponds to one said drive pulse;
the determining of the pulse duration of the driving pulse according to the detection duration required by the single ambient light detection of the light sensor comprises the following steps:
determining the pulse duration according to the detection time required by single ambient light detection of the light sensor and the time difference between the refreshing cycles; wherein the pulse duration is less than or equal to the time difference.
3. The method of claim 2, wherein determining the pulse voltage based on the desired display brightness of the display screen and the pulse duration comprises:
determining the pulse voltage required by the display screen to reach the display brightness according to the pulse duration; wherein an integral value of the pulse voltage within the pulse duration is positively correlated with the display luminance.
4. The method as claimed in claim 1, wherein the detection time required for a single ambient light detection of the photosensor comprises: the light sensor detects an ambient light signal and obtains the time required by the ambient light brightness according to the integral value of the ambient light signal.
5. The method of any of claims 1 to 4, further comprising:
determining the state of the light sensor;
the determining of the pulse duration of the driving pulse according to the detection duration required by the single ambient light detection of the light sensor comprises the following steps:
and if the light sensation sensor is in an open state, determining the pulse duration of the driving pulse according to the detection time required by single ambient light detection of the light sensation sensor.
6. The method of claim 5, further comprising:
and if the light sensor is in a closed state, determining the pulse duration of the driving pulse according to the display brightness required by the display screen and a preset pulse voltage value.
7. A control device for a display screen of an electronic device, wherein a light sensor is arranged below the display screen, the control device comprises:
the first determining module is used for determining the pulse duration of the driving pulse according to the detection time required by single ambient light detection of the light sensor; the driving pulse is used for driving the display screen pixel to emit light; the light sensor is used for detecting the ambient light brightness in a time period when the display screen does not have the action of the driving pulse;
the second determining module is used for determining pulse voltage according to the display brightness required by the display screen and the pulse duration;
and the driving module is used for driving the display screen according to the determined pulse voltage and the determined pulse duration.
8. The apparatus of claim 7, wherein one refresh cycle of said display screen corresponds to one said driving pulse;
the first determining module is specifically configured to:
determining the pulse duration according to the detection time required by single ambient light detection of the light sensor and the time difference between the refreshing cycles; wherein the pulse duration is less than or equal to the time difference.
9. The apparatus of claim 8, wherein the second determining module is specifically configured to:
determining the pulse voltage required by the display screen to reach the display brightness according to the pulse duration; wherein an integral value of the pulse voltage within the pulse duration is positively correlated with the display luminance.
10. The apparatus of claim 7, wherein the detection time required for a single ambient light detection of the light sensor comprises: the light sensor detects an ambient light signal and obtains the time required by the ambient light brightness according to the integral value of the ambient light signal.
11. The apparatus of any one of claims 7 to 10, further comprising:
the third determining module is used for determining the state of the light sensor;
the first determining module is specifically configured to:
and if the light sensation sensor is in an open state, determining the pulse duration of the driving pulse according to the detection time required by single ambient light detection of the light sensation sensor.
12. The apparatus of claim 11, further comprising:
and the fourth determining module is used for determining the pulse duration of the driving pulse according to the display brightness required by the display screen and a preset pulse voltage value if the light sensor is in a closed state.
13. An electronic device, characterized in that the electronic device comprises at least: a processor and a memory for storing executable instructions operable on the processor, wherein:
the processor is used for executing the executable instructions, and the executable instructions execute the steps in the control method of the electronic equipment display screen provided by any one of the claims 1 to 6.
14. A non-transitory computer-readable storage medium, wherein computer-executable instructions are stored in the computer-readable storage medium, and when executed by a processor, implement the steps in the method for controlling the display screen of the electronic device provided in any one of claims 1 to 6.
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