Abstract: The disclosed driver and memory include: a phase driver that receives a first voltage signal, configured to output a second phase signal according to the first phase signal and the first voltage signal; a complementary phase driver includes: a first inverter for generating a complementary inverted phase signal based on a first complementary phase signal, the first phase signal and the first complementary phase signal are mutually inverted; a second inverter for receiving an output signal of the first inverter and a second voltage signal, the voltage value of the second voltage signal is smaller than that of the first voltage signal, and the second inverter is configured to be based on the first complementary inverted phase signal, and the second voltage signal outputs a second complementary phase signal. The driver of the embodiment provides the second phase signal and the second complementary phase signal.

Abstract: Provided is an electronic device. The electronic device includes a screen provided with a first polarizer, a second polarizer arranged below the screen, and an optical fingerprint identification module arranged below the second polarizer. The polarization direction of the first polarizer is the same with the polarization direction of the second polarizer. The first polarizer and the second polarizer are configured to filter a first optical noise. The second polarizer is configured to filter a second optical noise. The first optical noise is light from screen light of the screen and directing to the optical fingerprint recognition module. The second optical noise is light from the screen light, directing away from the optical fingerprint recognition module and reflected by a glass cover on an outer side of the screen.

Abstract: An electronic device, including: a display panel, including a fingerprint recognition region, the fingerprint recognition region including a central region and an edge region surrounding the central region; an optical sensor, configured to collect a fingerprint image of a target object and including a plurality of photosensitive units, wherein a projection of the optical sensor on the display panel along a direction perpendicular to the display panel is within the fingerprint recognition region; and a controller, configured to control photosensitive performance of at least one photosensitive unit corresponding to the edge region to be better than photosensitive performance of at least one photosensitive unit corresponding to the central region.

Abstract: An under-screen fingerprint module for an electronic device is provided. The electronic device includes a screen defining a preset area and arranged with a first polarizer to filter first optical noise, and a back cover; the fingerprint module being arranged between the two. At least part of a vertical projection of the preset area on the back cover and that of the fingerprint module are overlapped. The fingerprint module includes a second polarizer to filter the first optical noise as reflected light of first light being part of emitted light of the screen and irradiated along a direction perpendicular to the screen and away from the back cover. A polarization direction of the second polarize and the first polarizer are same. The second polarizer is further configured to filter second optical noise as second light being part of the emitted light and irradiated along a direction towards the back cover.

Abstract: An electronic device is provided, which includes an enclosure, an output component, a display screen and an optical sensor. The output component and the display screen are mounted on the enclosure. The output component includes a packaging shell, an infrared supplementary lighting lamp and a proximity infrared lamp; the packaging shell includes a packaging substrate; the infrared supplementary lighting lamp and the proximity infrared lamp are packaged in the packaging shell and born on the packaging substrate. The display screen is provided with a non-opaque entity region and includes a front surface capable of displaying a picture and a back surface back on to the front surface. The optical sensor is arranged on a side, where the back surface is positioned, of the display screen and corresponds to the non-opaque entity region.

Abstract: An electronic device includes: a cover glass, including a first side and a second side; an ultrasonic wave transmitter and an ultrasonic wave receiver, arranged on the second side of the cover glass. Orthographic projections of the ultrasonic wave transmitter and the ultrasonic wave receiver onto the cover glass may be at two opposing ends of the cover glass. The ultrasonic wave transmitter is configured to emit an ultrasonic wave, the ultrasonic wave is able to enter the cover glass from an end, reflected between the first side and the second side for a plurality of times, emitted out of the cover glass from another end, and received by the ultrasonic wave receiver.

Abstract: An under-screen optical fingerprint module, a display screen assembly, and an electronic device are provided. The under-screen optical fingerprint module includes an image sensor and a light transmission layer. The image sensor has multiple photosensitive units. The light transmission layer is located below a display screen body and covers the image sensor. The light transmission layer is provided with optical transmission paths each corresponding to one photosensitive unit. Each optical transmission path is provided with a collimating element and a light outlet. Light transmitted through the display screen body enters the optical transmission paths through the collimating elements, travels to the light outlets along the optical transmission paths, and is incident on the corresponding photosensitive units from the light outlets.

Abstract: The present disclosure relates to an image processing method, an image processing apparatus, and an electronic device. The method includes projecting structured light to a current user based on a preset rule; capturing a structured-light image modulated by the current user each time; and superposing the structured-light images to acquire a target image.

Abstract: A working mode switching method and apparatus, a storage medium, and an electronic device are disclosed. The electronic device comprises a display screen, a first acousto-electric conversion module, and a second acousto-electric conversion module. The first acousto-electric conversion module and the second acousto-electric conversion module are located on one side of the display screen and connected to the display screen; and the first acousto-electric conversion module and the second acousto-electric conversion module are used for realizing the conversion between ultrasonic or acoustic signals and electrical signals.

Abstract: An electronic device, including: a display panel, including a fingerprint recognition region, the fingerprint recognition region including a central region and an edge region surrounding the central region; an optical sensor, configured to collect a fingerprint image of a target object and including a plurality of photosensitive units, wherein a projection of the optical sensor on the display panel along a direction perpendicular to the display panel is within the fingerprint recognition region; and a controller, configured to control photosensitive performance of at least one photosensitive unit corresponding to the edge region to be better than photosensitive performance of at least one photosensitive unit corresponding to the central region.

Abstract: A method for collecting fingerprints and related products is provided. The method is applicable to an electronic device and includes the following. A first component set of the ultrasonic module is controlled to operate at a first operating frequency to capture a 3D image of a target object, where the first component set includes P transmitters and Q receivers, and P and Q are positive integers. A second component set of the ultrasonic module is woken up when the 3D image is identified to be a finger, where the second component set comprises M transmitters and N receivers, M and N are positive integers, P<M, and Q<N. The second component set of the ultrasonic module is controlled to collect fingerprints at a second operating frequency to obtain a target fingerprint image, where the first operating frequency is lower than the second operating frequency.

Abstract: Disclosed in the present application is a fingerprint module, applied to an electronic device including a screen and a fingerprint module. The fingerprint module is provided below a preset area of the screen. The screen is provided with a first polarizer. The fingerprint module includes a collimating lens and an optical fingerprint sensor, and the collimating lens is provided on the side of the optical fingerprint sensor close to the screen. The collimating lens is provided with a second polarizer, and polarization directions of the first polarizer and the second polarizer are consistent. The first polarizer and the second polarizer are configured to filter first light, and the first light is light, among light emitted from the screen in a first direction, reflected by the screen. The second polarizer is configured to filter the second light, and the second light is light emitted from the screen in a second direction.

Abstract: An under-screen fingerprint module for an electronic device is provided. The electronic device includes a screen defining a preset area and arranged with a first polarizer to filter first optical noise, and a back cover; the fingerprint module being arranged between the two. At least part of a vertical projection of the preset area on the back cover and that of the fingerprint module are overlapped. The fingerprint module includes a second polarizer to filter the first optical noise as reflected light of first light being part of emitted light of the screen and irradiated along a direction perpendicular to the screen and away from the back cover. A polarization direction of the second polarize and the first polarizer are same. The second polarizer is further configured to filter second optical noise as second light being part of the emitted light and irradiated along a direction towards the back cover.

Abstract: Provided is an electronic device. The electronic device includes a screen provided with a first polarizer, a second polarizer arranged below the screen, and an optical fingerprint identification module arranged below the second polarizer. The polarization direction of the first polarizer is the same with the polarization direction of the second polarizer. The first polarizer and the second polarizer are configured to filter a first optical noise. The second polarizer is configured to filter a second optical noise. The first optical noise is light from screen light of the screen and directing to the optical fingerprint recognition module. The second optical noise is light from the screen light, directing away from the optical fingerprint recognition module and reflected by a glass cover on an outer side of the screen.

Abstract: A method for fingerprint image processing includes the following. A second region of a screen and an effective collection region of an under-screen fingerprint module are determined in response to a fingerprint collection instruction. The second region is lit up; where emitted lights of the second region are associated with first optical noise, second optical noise, and first lights; the first optical noise includes reflected lights which are lights reflected by the second lights from the screen, and the second lights are part of the emitted lights travelling along a positive direction of a Z axis of the screen; the second optical noise includes direct lights which are part of the emitted lights travelling along a negative direction of the Z axis; the first lights are emitted lights reflected by a user's fingerprint. A fingerprint image is obtained by collecting and processing the first lights in the effective collection region.

Abstract: A display screen, an electronic device and a method for 3D feature recognition are provided. The display screen includes a plurality of display units distributed in an array across a display area of the display screen; a plurality of infrared emitting elements embedded in a first area of the display area of the display screen; and a plurality of photosensitive elements embedded in a second area of the display area of the display screen. The plurality of photosensitive elements can be combined into an image sensor. The plurality of infrared emitting elements is configured to emit infrared light for illuminating a target object in front of the display screen so as to form a plurality of light spots on the target object. The plurality of photosensitive elements is configured to receive target light spots reflected from the target object and convert the target light spots into photo-electrical signals for generating a target image of the target object.

Abstract: A method for collecting fingerprints and related products is provided. The method is applicable to an electronic device and includes the following. A first component set of the ultrasonic module is controlled to operate at a first operating frequency to capture a 3D image of a target object, where the first component set includes P transmitters and Q receivers, and P and Q are positive integers. A second component set of the ultrasonic module is woken up when the 3D image is identified to be a finger, where the second component set comprises M transmitters and N receivers, M and N are positive integers, P<M, and Q<N. The second component set of the ultrasonic module is controlled to collect fingerprints at a second operating frequency to obtain a target fingerprint image, where the first operating frequency is lower than the second operating frequency.

Abstract: An electronic device includes: a cover glass, including a first side and a second side; an ultrasonic wave transmitter and an ultrasonic wave receiver, arranged on the second side of the cover glass. Orthographic projections of the ultrasonic wave transmitter and the ultrasonic wave receiver onto the cover glass may be at two opposing ends of the cover glass. The ultrasonic wave transmitter is configured to emit an ultrasonic wave, the ultrasonic wave is able to enter the cover glass from an end, reflected between the first side and the second side for a plurality of times, emitted out of the cover glass from another end, and received by the ultrasonic wave receiver.

Abstract: The present disclosure relates to an image processing method, an image processing apparatus, and an electronic device. The method includes projecting structured light to a current user based on a preset rule; capturing a structured-light image modulated by the current user each time; and superposing the structured-light images to acquire a target image.

Abstract: A display screen, an electronic device and a method for 3D feature recognition are provided. The display screen includes a plurality of display units distributed in an array across a display area of the display screen; a plurality of infrared emitting elements embedded in a first area of the display area of the display screen; and a plurality of photosensitive elements embedded in a second area of the display area of the display screen. The plurality of photosensitive elements can be combined into an image sensor. The plurality of infrared emitting elements is configured to emit infrared light for illuminating a target object in front of the display screen so as to form a plurality of light spots on the target object. The plurality of photosensitive elements is configured to receive target light spots reflected from the target object and convert the target light spots into photo-electrical signals for generating a target image of the target object.