Abstract: A wearable device, an electronic system, an electronic device, a tactile feedback method and a storage medium are provided. The wearable device with tactile feedback includes an electromagnetic coil set, a driving circuit and a control circuit, the driving circuit is coupled with the electromagnetic coil set; the control circuit is configured to control the driving circuit to generate and output a coil current corresponding to the electromagnetic coil set to the electromagnetic coil set according to a control command; and the electromagnetic coil set is configured to receive the coil current and generate the tactile feedback based on the coil current.

Abstract: The present disclosure is related to an image processing method of virtual reality. The image processing method may include obtaining position information of a gaze point; performing a compression process on an original image to obtain a compressed image based on the position information of the gaze point; performing a compression process on a distorted image of the original image in an lens to obtain a compressed distorted image based on the position information of the gaze point; and performing an anti-distortion process on the compressed image to obtain an anti-distortion image based on a relationship between the compressed image and the compressed distorted image. The position information of the gaze point may be position information of a gaze point of a user's eye on an original image.

Abstract: A backlight driving circuit of driving a backlight source, the backlight source comprising a plurality of LEDs arranged in an array, the backlight driving circuit comprising: a power source sub-circuit and a switch control sub-circuit, wherein the power source sub-circuit is electrically connected to the plurality of LEDs respectively through the switch control sub-circuit; and the switch control sub-circuit is configured to determine a to-be-turned-on LED and a to-be-turned-off LED according to color information of an image to be displayed, and control each of the LEDs to be turned on or off by controlling a connection state between each of the LEDs and the power source sub-circuit separately according to the determined to-be-turned-on LED and the determined to-be-turned-off LED. A backlight driving method, a backlight driving device and a computer-readable storage medium are further provided.

Abstract: A backlight, a control method of the backlight, and a display device are provided. The backlight includes a plurality of light-emitting modules arranged in an array. Each of the light-emitting modules includes a light-emitting unit and a control circuit. The control circuit includes n branches, a controller, and a current module. Each branch of the n branches is connected in series with the light-emitting unit and the current module. Each branch is provided with a switch, and the controller is separately connected to the switch on each branch.

Abstract: An image display processing method for a display device, an image display processing device, a display device, and a non-volatile storage medium are provided. The display device includes a backlight unit and a display panel, the backlight unit includes a plurality of backlight blocks and is driven by a local dimming mode, and the image display processing method includes: obtaining initial backlight data of each of the plurality of backlight blocks corresponding to a display image; performing a peak driving process on the initial backlight data of each of the plurality of backlight blocks by a graphics processing unit to obtain adjusted backlight data of each of the plurality of backlight blocks; and providing the adjusted backlight data to the backlight unit by the graphics processing unit so that the display panel displays the display image.

Abstract: A video processing method includes: receiving motion information of a display apparatus; determining, according to the motion information of the display apparatus and a motion threshold of the display apparatus, whether a motion state of the display apparatus affects the effect of the display apparatus using a frame rate up-conversion image processing method based on motion compensation to process a video that is to be displayed by the display apparatus; if yes, stopping using the frame rate up-conversion processing method based on motion compensation to process the video that is to be displayed by the display apparatus; if no, continuing to use the frame rate up-conversion processing method based on motion compensation to process the video that is to be displayed by the display apparatus.

Abstract: The present disclosure provides a method, apparatus, medium, and electronic device for evaluating environmental noise of device. The method comprises obtaining original image data to be displayed; determining at least part of the original image data to be displayed as source data; obtaining comparison data according to the source data; obtaining a difference value according to the comparison data and the source data; and evaluating environmental noise of device according to the difference value.

Abstract: An eye tracking device and an eye tracking method applied to video glasses, and video glasses are provided. The eye tracking device includes a light source component, a reflection component, an image sensor component and a main control component. The light source component is configured to emit invisible light to an eyeball, the reflection component is configured to reflect the invisible light reflected by the eyeball, the image sensor component is configured to generate an image of the eyeball based on the invisible light reflected by the reflection component, and the main control component is coupled to the image sensor component and is configured to acquire a gaze direction based on the image of the eyeball.

Abstract: A pixel circuit includes a liquid crystal capacitor, a selection unit, a gray scale writing unit, and a reset unit. The selection unit is configured to determine whether to charge the liquid crystal capacitor according to a row control signal and a column control signal. The gray scale writing unit is configured to apply a gray scale voltage signal to the liquid crystal capacitor, when the selection unit determines to charge the liquid crystal capacitor, and an application duration of the gray scale voltage signal controls a gray scale level displayed by the liquid crystal capacitor. The reset unit is configured to disconnect the gray scale writing unit and the liquid crystal capacitor to stop charging the liquid crystal capacitor upon receiving the reset signal, and reset the voltage of the liquid crystal capacitor to an initial state.

Abstract: A display driving method of a display device, a driving device and the display device are provided. The display device includes a display panel and a backlight unit. The display driving method includes: sending image information of a display image to the display panel; acquiring a scanning parameter of the display image from the image information; acquiring a driving parameter of a plurality of rows of backlight blocks based on the scanning parameter of the display image, and driving the plurality of rows of backlight blocks based on the driving parameter.

Abstract: An interpupillary distance measuring method, a wearable ophthalmic device and a computer readable storage medium are provided. The method includes: capturing at least one eye image; extracting corresponding one or two pupil image positions corresponding to a monocular pupil or pupils to two eyes in the at least one eye image; and determining an actual distance between the pupils of two eyes according to the one or two pupil image positions.

Abstract: The present application discloses display apparatus for displaying image based on time-divisional data. The display apparatus includes a data processor including at least a first shift register and a data buffer, and configured to store a first matrix of data corresponding to the frame of image data to the data buffer at time t0, to shift the first matrix of data by m columns by the first shift register to obtain a second matrix of data stored to the data buffer at time t1. The display apparatus further includes an interface connector configured to output the first matrix of data in period T0 and the second matrix of data in period T1 in a same order same as the fixed sequential order respectively over the at least two time-divisional periods T0 and T1 of a unit-time through a driver circuit to a display panel for displaying one frame of image.

Abstract: The present disclosure provides a method, apparatus and device for rendering virtual reality scenes. The method includes: obtaining a virtual reality scene and determining whether the virtual reality scene is in a rendering idle state; if the virtual reality scene is in the rendering idle state, performing image rendering on the virtual reality scene to generate a display image and store a correspondence between the display image and a display area; and obtaining a target area to be displayed of the virtual reality scene, calling a target display image corresponding to the target area according to the correspondence and displaying the target display image.

Abstract: An image data processing method, an image display method, a data transmission apparatus and a storage medium. The image data processing method includes: storing an object data set to be transmitted into a first cache space, in which the object data set includes N pieces of consecutive image data sequentially arranged in a first order; recombining the N pieces of consecutive image data into M data subsets, in which each data subset includes N/M pieces of image data which are not adjacent to each other, sequentially selected from the N pieces of consecutive image data according to a first rule; and transmitting the M data subsets. And M is an integer greater than 1, and N is an integer multiple of M and greater than M.

Abstract: Embodiments of the present disclosure provide a method and a device for determining a gaze placement and a computer readable storage medium. The method comprises acquiring an ocular image of a subject; determining at least one gaze characteristic vector based on an ocular image; determining a gaze placement of the subject, according to a gaze estimation model and the at least one characteristic vector. The characteristic vector comprises at least one of: a first characteristic vector from a first reference speckle center to a pupil center, wherein the first reference speckle is formed by a first reference source in the ocular image; a second characteristic vector from the pupil center to a second reference speckle center, wherein the second reference speckle is formed by a second reference source in the ocular image; a third characteristic vector from the second reference speckle center to the first reference speckle center.

Abstract: A brightness adjustment method and a brightness adjustment apparatus are provided. The brightness adjustment method is applied to an augmented reality device and includes acquiring at least one of position information or attitude information of the augmented reality device; determining a brightness corresponding to the acquired at least one of the position information or the attitude information according to an established correspondence relation between brightness information and at least one of position information or attitude information; and controlling the augmented reality device to display at the brightness.

Abstract: A display apparatus includes a display panel and a gate driving circuit. A display area of the display panel includes at least two sub-display areas, and each sub-display area of the at least two sub-display areas includes a plurality of sub-pixels. The gate driving circuit includes at least two gate driving sub-circuits in one-to-one correspondence with the at least two sub-display areas, and each gate driving sub-circuit of the at least two gate driving sub-circuits is electrically connected to a plurality of sub-pixels included in a corresponding sub-display area. Each gate driving sub-circuit is configured to receive a group of first control signals, generate a group of gate driving signals according to the group of first control signals, and output the group of gate driving signals is to the plurality of sub-pixels included in the corresponding sub-display area.

Abstract: The present disclosure provides a method for sending driving data of a backlight source, a control circuit and a display device. The method includes: acquiring driving data of a plurality of rows of light-emitting elements included in the backlight source; and sending the driving data of the plurality of rows of light-emitting elements to a driving circuit of the backlight source at many times, wherein at least one data packet is sent each time, each data packet includes driving data for driving one row of light-emitting elements and a quantity of data packets sent each time is less than a quantity of rows of light-emitting elements included in the backlight source.

Abstract: The present application discloses a method, apparatus, and storage medium for processing an image in a virtual reality system. The method comprises: splitting an image to be rendered at a first timing in the virtual reality system into a first region and a second region; rendering the first region of the image to be rendered according to first gesture data of a user at the first timing; rendering the second region of the image to be rendered according to second gesture data at a second timing at the end of the rendering of the first region.

Abstract: An image display processing method for a display device, an image display processing device, a display device, and a non-volatile storage medium are provided. The display device includes a backlight unit and a display panel, the backlight unit includes a plurality of backlight blocks and is driven by a local dimming mode, and the image display processing method includes: obtaining initial backlight data of each of the plurality of backlight blocks corresponding to a display image; performing a peak driving process on the initial backlight data of each of the plurality of backlight blocks by a graphics processing unit to obtain adjusted backlight data of each of the plurality of backlight blocks; and providing the adjusted backlight data to the backlight unit by the graphics processing unit so that the display panel displays the display image.