A screen control circuit, method, terminal and readable storage medium

Abstract

The present disclosure provides a screen control circuit, method, terminal and readable storage medium, which are applied to the technical field of circuit control, and the screen control circuit comprises a processor, a screen driving circuit, at least one area control circuit and at least one pixel driving circuit; wherein each area control circuit corresponds to a screen sub-area, the screen sub-area is a corresponding area of a screen under-screen light sensing device on the screen, each area control circuit is used for controlling all pixel driving circuits in the corresponding screen sub-area to perform the same operation, and each pixel driving circuit is used for controlling the pixel control circuit of the corresponding pixel unit to be turned on or turned off at the same time. In the present disclosure, the area control circuit is arranged for each screen sub-area corresponding to the screen under-screen light sensing device, the pixel driving circuit is arranged for all pixel units in each screen sub-area, the display bright spot in the screen sub-area is avoided by controlling the display of the pixel unit at the corresponding position, and the visual experience of the user is improved.

Description

Technical Field

[0001] This disclosure relates to the field of circuit control technology, and in particular to a screen control circuit, method, terminal, and readable storage medium. Background Technology

[0002] With the widespread adoption of touchscreen devices, various types of screens have been widely used. To achieve a larger screen-to-body ratio, multiple under-display devices are installed beneath the screen. Some of these under-display photosensitive devices emit light in the 850-1350 nanometer (nm) wavelength range. When the screen and the under-display photosensitive device work simultaneously, the emitted light from the under-display photosensitive device can excite electron transitions in the screen, resulting in display anomalies when the screen is on, such as bright spots. Summary of the Invention

[0003] In view of the above, this disclosure provides a screen control method, apparatus, terminal, and readable storage medium.

[0004] According to a first aspect of this disclosure, a screen control circuit is provided for use in a mobile terminal, comprising: A processor, a screen driving circuit connected to the processor, at least one area control circuit connected to the screen driving circuit, and at least one pixel driving circuit connected to the area control circuit. Each area control circuit corresponds to a screen sub-region, which is the area on the screen corresponding to an under-display photosensitive device. Each area control circuit is used to control all pixel driving circuits within the corresponding screen sub-region to perform the same operation. Each pixel driving circuit is used to control the pixel control circuit of the corresponding pixel unit to be turned on or off simultaneously.

[0005] In one embodiment, the screen control circuit further includes: a plurality of row driving circuits connected to the screen driving circuit; Each row drive circuit is used to control the pixel control circuits of all pixel units in the same row of the screen to be turned on or off simultaneously.

[0006] In one embodiment, the circuit structure of the pixel driving circuit is the same as that of the row driving circuit.

[0007] In one embodiment, the pixel control circuit is a thin-film transistor, the pixel driving device is connected to the gate of the thin-film transistor of the corresponding pixel unit, and the row driving circuit is connected to the gate of the thin-film transistor of all pixel units in the corresponding row.

[0008] According to a second aspect of this disclosure, a screen control method is provided, applied to the screen control circuit, comprising: When the screen is on, the processor receives a command to activate the under-display light sensor, determines the screen sub-region corresponding to the under-display light sensor, and determines the area control circuit corresponding to the screen sub-region. The processor sends a first indication signal to the screen driving circuit, the first indication signal being used to indicate that the pixel unit corresponding to the area control circuit is turned off. The screen driving circuit sends a first control signal to the area control circuit. The first control signal is used to trigger all pixel driving circuits connected to the area control circuit to turn off the pixel control circuit of the corresponding pixel unit.

[0009] In one embodiment, the method further includes: When the screen is on, the processor receives an instruction to turn off the under-screen light sensor, determines the screen sub-region corresponding to the under-screen light sensor, and determines the area control circuit corresponding to the screen sub-region. The processor sends a second indication signal to the screen driving circuit, the second indication signal being used to indicate that the control signal sent to the area control circuit corresponding to the screen sub-area remains synchronized with the control signal sent to the row driving circuit. The screen driving circuit sends a second control signal to the pixel driving circuits corresponding to all pixel units within the screen sub-region through the region control circuit. The second control signal is synchronized with the control signal sent to the row driving circuit.

[0010] In one embodiment, after determining the screen sub-region corresponding to the under-display photosensitive device, the method further includes: The processor sends a display control signal to the screen driving circuit, the display control signal including the screen sub-region and the set image; The screen driving circuit controls the screen to display a set image within the screen sub-area.

[0011] In one embodiment, the processor sends a first indication signal to the screen driving circuit, including: After the set duration of displaying the set image in the sub-area of ​​the screen reaches the set duration, a first indication signal is sent to the screen driving circuit.

[0012] In one embodiment, the set duration is N times the unit duration; wherein, the unit duration is the display duration of one frame of data corresponding to the screen refresh rate; and N is an integer greater than zero.

[0013] In one embodiment, the method further includes: When the screen is in an off state, the processor receives an instruction to turn on the under-screen light sensor, determines the screen sub-region corresponding to the under-screen light sensor, and determines the area control circuit corresponding to the screen sub-region. The processor sends a second indication signal to the screen driving circuit, the second indication signal being used to indicate that the control signal sent to the area control circuit corresponding to the screen sub-area remains synchronized with the control signal sent to the row driving circuit. The screen driving circuit sends a second control signal to the pixel driving circuits corresponding to all pixel units within the screen sub-region through the region control circuit. The second control signal is synchronized with the control signal sent to the row driving circuit.

[0014] According to a third aspect of this disclosure, a mobile terminal is provided, comprising: processor; Memory used to store processor-executable instructions; The processor is configured to execute executable instructions in the memory to implement the steps of the method.

[0015] According to a fourth aspect of this disclosure, a non-transitory computer-readable storage medium is provided, on which executable instructions are stored, which, when executed by a processor, implement the steps of the method.

[0016] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: a region control circuit is set for each screen sub-region corresponding to each under-display optical sensor, and a pixel driving circuit is set for all pixel units in each screen sub-region. When at least one under-display optical sensor is turned on, all pixel units in the screen sub-region corresponding to the at least one under-display optical sensor are turned off through the region control circuit and the corresponding pixel driving circuit, thereby avoiding bright spots in the screen sub-region by controlling the display of pixel units at the corresponding positions, and improving the user's visual experience.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0019] Figure 1 This is a structural diagram of an existing screen control circuit; Figure 2 This is a structural diagram of a screen control circuit according to an exemplary embodiment; Figure 3This is a structural diagram of another screen control circuit according to an exemplary embodiment; Figure 4 This is a flowchart illustrating a screen control method according to an exemplary embodiment; Figure 5 This is a flowchart illustrating another screen control method according to an exemplary embodiment; Figure 6 This is a structural diagram of a screen control device according to an exemplary embodiment. Detailed Implementation

[0020] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with those in this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the embodiments in this disclosure as detailed in the appended claims.

[0021] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0022] like Figure 1 As shown, in the screen control circuit of a display or touchscreen, the row driving circuit (generally a gate driving circuit) controls the pixel control circuits of all pixel units in an entire row of the screen to be turned on or off simultaneously, and the column driving circuit (generally a source driving circuit) controls the pixel control circuits of all pixel units in an entire column of the screen to be turned on or off simultaneously. In this conventional design, the emitted light generated by the under-display photosensitive device when it is working will interfere with the display screen when it is in the on state.

[0023] This disclosure provides a screen control circuit applied to a mobile terminal. (Refer to...) Figure 2 , Figure 2 This is a structural diagram of a screen control circuit according to an exemplary embodiment. For example... Figure 2 As shown, this circuit includes: A processor, a screen driving circuit connected to the processor, at least one area control circuit connected to the screen driving circuit, and at least one pixel driving circuit connected to the area control circuit. Each area control circuit corresponds to a screen sub-region, which is the area on the screen corresponding to an under-display photosensitive device. Each area control circuit is used to control all pixel driving circuits within the corresponding screen sub-region to perform the same operation. Each pixel driving circuit is used to control the pixel control circuit of the corresponding pixel unit to be turned on or off simultaneously.

[0024] It should be noted that, Figure 2 For illustrative purposes only, two area control circuits, namely area control circuit 1 and area control circuit 2, are shown. In other embodiments, one or more area control circuits may be provided. The number of area control circuits is not intended to limit the inventive concept of the embodiments of this disclosure.

[0025] In this embodiment of the disclosure, a region control circuit is set for each screen sub-region corresponding to each under-display optical sensor, and a pixel driving circuit is set for all pixel units in each screen sub-region. When at least one under-display optical sensor is turned on, the region control circuit and the corresponding pixel driving circuit are used to turn off all pixel units in the screen sub-region corresponding to the at least one under-display optical sensor. This avoids bright spots in the screen sub-region by controlling the display of pixel units at the corresponding positions, thereby improving the user's visual experience.

[0026] This disclosure provides a screen control circuit applied to a mobile terminal. (Refer to...) Figure 3 , Figure 3 This is a structural diagram of a screen control circuit according to an exemplary embodiment. For example... Figure 3 As shown, this screen control circuit includes Figure 2 The circuit shown also includes: Multiple row drive circuits connected to the screen drive circuit; Each row drive circuit is used to control the pixel control circuits of all pixel units in the same row of the screen to be turned on or off simultaneously.

[0027] In this embodiment, a row driving circuit and a pixel driving circuit are simultaneously provided in the screen control circuit. The row driving circuit is used to uniformly control the pixel units of the entire row, and the pixel driving circuit is used to individually control the pixel units. This allows for unified control of each row that does not correspond to the under-display photosensitive device, and individual control of the pixel units in the corresponding screen sub-area of ​​the under-display photosensitive device. By combining the two control methods, flexible and effective control is achieved. By controlling the display of the pixel units at the corresponding positions, bright spots are avoided in the screen sub-area, thus improving the user's visual experience.

[0028] In one embodiment, the circuit structure of the pixel driving circuit is the same as that of the row driving circuit.

[0029] In this embodiment, the circuit structure of the pixel driving circuit is the same as that of the row driving circuit, thereby ensuring the consistency of the manufacturing process, improving manufacturing efficiency, ensuring the consistency of the control effect, and improving the display effect.

[0030] In one embodiment, the pixel control circuit is a thin-film transistor, the pixel driving device is connected to the gate of the thin-film transistor of the corresponding pixel unit, and the row driving circuit is connected to the gate of the thin-film transistor of all pixel units in the corresponding row.

[0031] In this embodiment, by taking advantage of the high performance and low cost of thin-film transistors, high speed, high brightness, and high contrast display effects can be achieved while saving costs.

[0032] This disclosure provides a screen control method applied to the aforementioned control circuit. (Refer to...) Figure 4 , Figure 4 This is a flowchart illustrating a screen control method according to an exemplary embodiment. Figure 4 As shown, this method includes: Step S41: After receiving the instruction to turn on the under-display light sensor when the screen is on, the processor determines the screen sub-region corresponding to the under-display light sensor and determines the area control circuit corresponding to the screen sub-region. Step S42, the processor sends a first indication signal to the screen driving circuit, the first indication signal being used to indicate that the pixel unit corresponding to the area control circuit is turned off; In step S43, the screen driving circuit sends a first control signal to the area control circuit. The first control signal is used to trigger all pixel driving circuits connected to the area control circuit to turn off the pixel control circuit of the corresponding pixel unit.

[0033] In this embodiment of the disclosure, in the use of Figure 1 In the circuit shown, when the processor receives an instruction to activate the under-display light sensor while the screen is on, it sends a first instruction signal to the screen driver circuit to prevent the under-display light sensor from affecting the screen display while it is working. This causes the screen driver circuit to control the area control circuit corresponding to the under-display light sensor. The area control circuit then controls the pixel driving circuits corresponding to all pixel units within the sub-area of ​​the screen, causing the pixel control circuits corresponding to all pixel units within the corresponding sub-area to be turned off. This avoids bright spots in the sub-area of ​​the screen by controlling the display of the pixel units at the corresponding positions, thereby improving the user's visual experience.

[0034] This disclosure provides a screen control method applied to the aforementioned control circuit, including: Figure 4 The method shown, and as Figure 5 As shown: The method further includes: Step S51: After receiving an instruction to turn off the under-display light sensor when the screen is on, the processor determines the screen sub-region corresponding to the under-display light sensor and determines the area control circuit corresponding to the screen sub-region. Step S52, the processor sends a second indication signal to the screen driving circuit, the second indication signal being used to indicate that the control signal sent to the area control circuit corresponding to the screen sub-area remains synchronized with the control signal sent to the row driving circuit; In step S53, the screen driving circuit sends a second control signal to the pixel driving circuits corresponding to all pixel units within the screen sub-region through the region control circuit. The second control signal is synchronized with the control signal sent to the row driving circuit.

[0035] In this embodiment of the disclosure, in the use of Figure 1 In the circuit shown, when the processor receives an instruction to turn off the under-display light sensor while the screen is on, it sends a second instruction signal to the screen driving circuit. The screen driving circuit then sends a second control signal to the pixel driving circuits corresponding to all pixel units within the screen sub-area. The second control signal is synchronized with the control signal sent to the row driving circuit, thereby synchronizing the pixel driving circuits corresponding to all pixel units within the screen sub-area with the row driving circuit, ensuring normal screen display, and making the control logic clear and reasonable.

[0036] In one embodiment, after determining the screen sub-region corresponding to the under-display photosensitive device in step S51, the method further includes: The processor sends a display control signal to the screen driving circuit, the display control signal including the screen sub-region and the set image; The screen driving circuit controls the screen to display a set image within the screen sub-area.

[0037] Wherein, all pixels in the set image have the same pixel value, or the set image is a part of a preset image.

[0038] In this embodiment of the present disclosure, by sending a display control signal to the screen driving circuit, the screen driving circuit controls the screen to display a set image in the sub-region of the screen, automatically repairing the display effect in the sub-region of the screen, thereby achieving a better fusion effect with the display area outside the sub-region of the screen and improving the display effect.

[0039] In one embodiment, in step S42, the processor sends a first indication signal to the screen driving circuit, including sending the first indication signal to the screen driving circuit after the duration of displaying the set image in the sub-area of ​​the screen reaches the set duration.

[0040] The set duration is N times the unit duration; the unit duration is the display duration of one frame of data corresponding to the screen refresh rate; N is an integer greater than zero. The set duration is an adjustable parameter, and can be increased or decreased according to different usage scenarios.

[0041] In this embodiment, by displaying a set image for a set duration, the display effect in the sub-area of ​​the screen is continuously and automatically repaired according to the usage within the set duration. The automatically repaired display effect serves as a buffer phase. After the buffer phase ends, a first indication signal is sent to the screen driving circuit, thereby improving the fusion effect with the display area outside the sub-area of ​​the screen and enhancing the display effect.

[0042] The following exemplary embodiment illustrates the processing procedure of an under-display optical sensor during its on-to-off working cycle.

[0043] In one example, When the screen is on, after receiving the instruction to activate the under-display light sensor A and the under-display light sensor B, the processor determines the screen sub-region 1 corresponding to the under-display light sensor A, determines the screen sub-region 2 corresponding to the under-display light sensor A, determines the area control circuit 1 corresponding to the screen sub-region 1, and determines the area control circuit 2 corresponding to the screen sub-region 2.

[0044] The processor sends a first indication signal to the screen driver circuit, the first indication signal being used to indicate the pixel units included in the closed area control circuit 1 and the pixel units included in the area control circuit 2.

[0045] The screen driving circuit sends a first control signal to the area control circuit 1. The first control signal is used to trigger all pixel driving circuits connected to this area control circuit 1 to turn off the pixel control circuit of the corresponding pixel unit.

[0046] The screen driving circuit sends a first control signal to the area control circuit 2. The first control signal is used to trigger all pixel driving circuits connected to this area control circuit 2 to turn off the pixel control circuit of the corresponding pixel unit.

[0047] When the screen is on, after receiving the instruction to turn off the under-display light sensor 1 and the under-display light sensor 2, the processor determines the screen sub-region 1 corresponding to the under-display light sensor A, determines the screen sub-region 2 corresponding to the under-display light sensor A, determines the area control circuit 1 corresponding to the screen sub-region 1, and determines the area control circuit 2 corresponding to the screen sub-region 2.

[0048] The processor sends a second indication signal to the screen driver circuit, the second indication signal being used to indicate that the control signals sent to the area control circuit 1 and the area control circuit 2 remain synchronized with the control signals sent to the row driver circuit.

[0049] The screen driving circuit sends a second control signal to the pixel driving circuits corresponding to all pixel units within the screen sub-region 1 through the region control circuit 1. The second control signal is synchronized with the control signal sent to the row driving circuit.

[0050] The screen driving circuit sends a second control signal to the pixel driving circuits corresponding to all pixel units within the screen sub-region 2 through the region control circuit 2. The second control signal is synchronized with the control signal sent to the row driving circuit.

[0051] This disclosure provides a screen control method applied to the aforementioned control circuit, including: Figure 4 The method shown also includes: When the screen is in an off state, the processor receives an instruction to turn on the under-screen light sensor, determines the screen sub-region corresponding to the under-screen light sensor, and determines the area control circuit corresponding to the screen sub-region. The processor sends a second indication signal to the screen driving circuit, the second indication signal being used to indicate that the control signal sent to the area control circuit corresponding to the screen sub-area remains synchronized with the control signal sent to the row driving circuit. The screen driving circuit sends a second control signal to the pixel driving circuits corresponding to all pixel units within the screen sub-region through the region control circuit. The second control signal is synchronized with the control signal sent to the row driving circuit.

[0052] In this embodiment of the disclosure, when the processor receives an instruction to turn on the under-screen light sensor when the screen is in a screen-off state, it will not have an adverse effect on the screen display. This ensures that the pixel driving circuits and row driving circuits corresponding to all pixel units in the sub-area of ​​the screen remain synchronized, making the control logic clear and reasonable.

[0053] This disclosure provides a mobile terminal, including: processor; Memory used to store processor-executable instructions; The processor is configured to execute executable instructions in the memory to implement the steps of the screen control method.

[0054] This disclosure provides a non-transitory computer-readable storage medium storing executable instructions that, when executed by a processor, implement the steps of the screen control method.

[0055] Figure 6 This is a block diagram illustrating a device 600 for controlling a screen according to an exemplary embodiment. For example, device 600 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0056] Reference Figure 6 The device 600 may include one or more of the following components: a processing component 602, a memory 604, a power supply component 606, a multimedia component 608, an audio component 610, an input / output (I / O) interface 612, a sensor component 614, and a communication component 616.

[0057] Processing component 602 typically controls the overall operation of device 600, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 602 may include one or more processors 620 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 602 may include one or more modules to facilitate interaction between processing component 602 and other components. For example, processing component 602 may include a multimedia module to facilitate interaction between multimedia component 608 and processing component 602.

[0058] Memory 604 is configured to store various types of data to support the operation of device 600. Examples of this data include instructions for any application or method operating on device 600, contact data, phonebook data, messages, pictures, videos, etc. Memory 604 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, 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 storage, flash memory, magnetic disk, or optical disk.

[0059] Power supply component 606 provides power to the various components of device 600. Power supply component 606 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to device 600.

[0060] Multimedia component 608 includes a screen that provides an output interface between the device 600 and the 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 touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 608 includes a front-facing camera and / or a rear-facing camera. When the device 600 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0061] Audio component 610 is configured to output and / or input audio signals. For example, audio component 610 includes a microphone (MIC) configured to receive external audio signals when device 600 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 604 or transmitted via communication component 616. In some embodiments, audio component 610 also includes a speaker for outputting audio signals.

[0062] I / O interface 612 provides an interface between processing component 602 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, start buttons, and lock buttons.

[0063] Sensor assembly 614 includes one or more sensors for providing status assessments of various aspects of device 600. For example, sensor assembly 614 may detect the on / off state of device 600, the relative positioning of components such as the display and keypad of device 600, changes in the position of device 600 or a component of device 600, the presence or absence of user contact with device 600, the orientation or acceleration / deceleration of device 600, and temperature changes of device 600. Sensor assembly 614 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 614 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 614 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0064] Communication component 616 is configured to facilitate wired or wireless communication between device 600 and other devices. Device 600 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 616 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 616 also includes a near-field communication (NFC) module to facilitate short-range communication. 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.

[0065] In an exemplary embodiment, the apparatus 600 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, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0066] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 604 including instructions, which can be executed by a processor 620 of the device 600 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0067] Other embodiments of the embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the embodiments of this disclosure that follow the general principles of the embodiments of this disclosure and include common knowledge or customary techniques in the art not disclosed in the embodiments. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the embodiments of this disclosure are indicated by the following claims.

[0068] It should be understood that the embodiments in this disclosure are not limited to the precise structures described above and shown in the accompanying drawings, and various combinations, substitutions, modifications, and changes can be made to the method steps or device components disclosed in this application without departing from its scope. All such combinations, substitutions, modifications, and changes are considered to be included within the scope of this disclosure. The scope of protection claimed in this disclosure is limited by the appended claims.

[0069] It should be noted that, in this disclosure, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

Claims

1. A screen control circuit, applied to a mobile terminal, characterized in that, include: A processor, a screen driving circuit connected to the processor, at least one area control circuit connected to the screen driving circuit, and at least one pixel driving circuit connected to the area control circuit. Each area control circuit corresponds to a screen sub-region, which is the area on the screen corresponding to an under-display photosensitive device. The pixel driving circuit is set for all pixel units in each screen sub-region. Each area control circuit is used to control all pixel driving circuits in the corresponding screen sub-region to perform the same operation. Each pixel driving circuit is used to control the pixel control circuit of the corresponding pixel unit to be turned on or off simultaneously.

2. The screen control circuit as described in claim 1, characterized in that, The screen control circuit further includes: a plurality of row driving circuits connected to the screen driving circuit; Each row drive circuit is used to control the pixel control circuits of all pixel units in the same row of the screen to be turned on or off simultaneously.

3. The screen control circuit as described in claim 2, characterized in that, The circuit structure of the pixel driving circuit is the same as that of the row driving circuit.

4. The screen control circuit as described in claim 2, characterized in that, The pixel control circuit is a thin-film transistor, the pixel driving circuit is connected to the gate of the thin-film transistor of the corresponding pixel unit, and the row driving circuit is connected to the gate of the thin-film transistor of all pixel units in the corresponding row.

5. A screen control method, applied to any screen control circuit of claims 1 to 4, characterized in that, include: When the screen is on, the processor receives a command to activate the under-display light sensor, determines the screen sub-region corresponding to the under-display light sensor, and determines the area control circuit corresponding to the screen sub-region. The processor sends a first indication signal to the screen driving circuit, the first indication signal being used to indicate that the pixel unit corresponding to the area control circuit is turned off. The screen driving circuit sends a first control signal to the area control circuit. The first control signal is used to trigger all pixel driving circuits connected to the area control circuit to turn off the pixel control circuit of the corresponding pixel unit. Specifically, the pixel driving circuit is provided for all pixel units in each of the screen sub-regions.

6. The method as described in claim 5, characterized in that, The method further includes: When the screen is on, the processor receives an instruction to turn off the under-screen light sensor, determines the screen sub-region corresponding to the under-screen light sensor, and determines the area control circuit corresponding to the screen sub-region. The processor sends a second indication signal to the screen driving circuit, the second indication signal being used to indicate that the control signal sent to the area control circuit corresponding to the screen sub-area remains synchronized with the control signal sent to the row driving circuit. The screen driving circuit sends a second control signal to the pixel driving circuits corresponding to all pixel units within the screen sub-region through the region control circuit. The second control signal is synchronized with the control signal sent to the row driving circuit.

7. The method as described in claim 5, characterized in that, After determining the screen sub-region corresponding to the under-display optical sensor, the method further includes: The processor sends a display control signal to the screen driving circuit, the display control signal including the screen sub-region and the set image; The screen driving circuit controls the screen to display a set image within the screen sub-area.

8. The method as described in claim 5, characterized in that, The processor sends a first indication signal to the screen driver circuit, including: After the set duration of displaying the set image in the sub-area of ​​the screen reaches the set duration, a first indication signal is sent to the screen driving circuit.

9. The method as described in claim 8, characterized in that, The set duration is N times the unit duration; where the unit duration is the display duration of one frame of data corresponding to the screen refresh rate; N is an integer greater than zero.

10. The method according to any one of claims 5 to 9, characterized in that, The method further includes: When the screen is in an off state, the processor receives an instruction to turn on the under-screen light sensor, determines the screen sub-region corresponding to the under-screen light sensor, and determines the area control circuit corresponding to the screen sub-region. The processor sends a second indication signal to the screen driving circuit, the second indication signal being used to indicate that the control signal sent to the area control circuit corresponding to the screen sub-area remains synchronized with the control signal sent to the row driving circuit. The screen driving circuit sends a second control signal to the pixel driving circuits corresponding to all pixel units within the screen sub-region through the region control circuit. The second control signal is synchronized with the control signal sent to the row driving circuit.

11. A mobile terminal, characterized in that, include: processor; Memory used to store processor-executable instructions; The processor is configured to execute executable instructions in the memory to implement the steps of the method according to any one of claims 5 to 10.

12. A non-transitory computer-readable storage medium having executable instructions stored thereon, characterized in that, When executed by a processor, the executable instructions implement the steps of the method according to any one of claims 5 to 10.

Images