Abstract: Implementations of demura gain generation using control loops are provided. One aspect includes a method for performing demura gain generation, the method comprising: initializing a demura look-up table with initial values; receiving pixel information for a plurality of pixels from a display panel; and, for each of the plurality of pixels, calculating an error based on the pixel information of the pixel and a corresponding target value; applying a control loop to the error to generate a control loop output; and updating the demura look-up table for the pixel based on the control loop output.

Abstract: Techniques for determining parameters for a dampener are disclosed. A system includes a laser beam scanning (LBS) display device comprising FS and SS mirrors. The LBS display device is driven by an input control signal. In response to detecting a condition, a service initiates a re-calibration event for the LBS display device. This event involves the determination of control parameters for a dampener that will be applied to the input control signal. The dampener operates to attenuate a peak magnitude of a frequency response of the SS mirror to a peak value that is at or below a threshold value. The service configures the dampener using the control parameters. The service then applies the dampener to the input control signal, resulting in the peak magnitude of the SS mirror's frequency response being at or below the threshold value.

Abstract: Implementations of local demura algorithms for correcting display artifacts are provided. One aspect includes a method comprising: receiving image data; segmenting the image data into a plurality of regions of interest; applying a plurality of demura algorithms to the plurality of regions of interest to generate a plurality of corrected regions of interest by at least: applying a first demura algorithm to a first region of interest; and applying a second demura algorithm different from the first demura algorithm to a second region of interest; and generating a corrected image using at least the plurality of corrected regions of interest.

Abstract: One example provides a method enacted on a scanning display device comprising an illumination source, and a scanning mirror system including a sense circuit coupled to a scanning mirror. The method comprises operating the scanning mirror system using a drive signal while operating the illumination source to thereby project an image, obtaining a control parameter based at least upon an output of the sense circuit, and comparing the control parameter to a noise threshold condition. The method further comprises, when the control parameter does not meet the noise threshold condition, continuing operating the scanning mirror according to the drive signal. The method also comprises, when the control parameter meets the noise threshold condition, adjusting the drive signal to form an adjusted drive signal to change a trajectory of the scanning mirror.

Abstract: One example provides a method enacted on a scanning display device comprising an illumination source, and a scanning mirror system including a sense circuit coupled to a scanning mirror. The method comprises operating the scanning mirror system using a drive signal while operating the illumination source to thereby project an image, obtaining a control parameter based at least upon an output of the sense circuit, and comparing the control parameter to a noise threshold condition. The method further comprises, when the control parameter does not meet the noise threshold condition, continuing operating the scanning mirror according to the drive signal. The method also comprises, when the control parameter meets the noise threshold condition, adjusting the drive signal to form an adjusted drive signal to change a trajectory of the scanning mirror.

Abstract: Some embodiments of the present disclosure provide a method for time synchronization, a method for broadcast setting, a chip, an electronic device, and a storage medium. According to the method for time synchronization, time synchronization information is received, the time synchronization information including a first count value N of at least one connection event at a synchronizing end and a first time, the first time being an occurrence time of an Nth connection event. A second count value K of the at least one connection event and a second time are determined according to at least the first count value N and the first time, the second time being an occurrence time of a Kth connection event, where both N and K are natural numbers. Time synchronization is performed based on the second time in response to occurrence of the Kth connection event.

Abstract: A laser beam scanning (“LBS”) display device is configured with an optical system that includes a laser beam emitter configured to emit a laser beam. The optical system also includes a driver configured to generate a driving signal for controlling a mirror, such as a microelectromechanical systems (“MEMS”) mirror. The optical system also includes a controller configured to generate a driving signal while rejecting a system disturbance response.

Abstract: The present disclosure provides a method and system for data transmission, chip, an electronic device, and a computer readable storage medium. The method applied at a first Bluetooth end includes: establishing a point-to-point connection with a second Bluetooth end; acquiring identity information of the second Bluetooth end through the point-to-point connection; and sending broadcast isochronous group information BIGInfo to the second Bluetooth end through the point-to-point connection when the identity information of the second Bluetooth end is verified, to enable the second Bluetooth end to receive a data stream of a broadcast isochronous group BIG sent by the first Bluetooth end according to the BIGInfo.

Abstract: A display device includes a display substrate and a backplane substrate. The display substrate includes an array of micro-LEDs forming individual pixels. The backplane substrate includes a plurality of pixel logic hardware modules. Each pixel logic hardware module includes a local memory element configured to store a multi-bit pixel intensity value of a corresponding micro-LED for an image frame. The backplane substrate is bonded to a backside of the display substrate such that the pixel logic hardware modules are physically aligned behind the array of micro-LEDs and each pixel logic hardware module is electrically connected to a micro-LED of the corresponding pixel.

Abstract: Provided are a synchronization control method, a chip, an electronic device and a storage medium. A master device sets a reference time for a plurality of slave devices wirelessly connected to the master device; and determines a target count value K of a connection event and an offset time of a respective slave device for each of the plurality of slave devices. The master device transmits the target count value of the connection event and the offset time to the respective slave device, so that each of the plurality of slave devices performs control based on the target count value of the connection event and the offset time of the respective slave device, so as to perform a task at the reference time.

Abstract: A display device includes a display substrate and a backplane substrate. The display substrate includes an array of micro-LEDs forming individual pixels. The backplane substrate includes a plurality of pixel logic hardware modules. Each pixel logic hardware module includes a local memory element configured to store a multi-bit pixel intensity value of a corresponding micro-LED for an image frame. The backplane substrate is bonded to a backside of the display substrate such that the pixel logic hardware modules are physically aligned behind the array of micro-LEDs and each pixel logic hardware module is electrically connected to a micro-LED of the corresponding pixel.

Abstract: A laser beam scanning (“LBS”) display device is configured with an optical system that includes a laser beam emitter configured to emit a laser beam. The optical system also includes a driver configured to generate a driving signal for controlling a mirror, such as a microelectromechanical systems (“MEMS”) mirror. The optical system also includes a controller configured to generate a driving signal while rejecting a system disturbance response.

Abstract: Techniques are described herein that are capable of adjusting a center frequency of an adaptive voltage controlled oscillator (VCO) that is included in an adaptive phase lock loop (PLL) and/or a phase difference target of the adaptive PLL. An adaptive PLL is a PLL that includes an adaptive VCO. An adaptive VCO is a VCO that is capable of adjusting its center frequency and/or a phase difference target of the adaptive PLL that includes the adaptive VCO. The adaptive PLL may be configured to drive (e.g., control) a device. A drive signal that is used to drive the device and a resulting output signal that is proportional to movement of the device may be fed back to respective inputs of the adaptive PLL so that the phases of those signals may be processed to facilitate adjustment of the center frequency and/or the phase difference target.

Abstract: A display device includes a display substrate and a backplane substrate. The display substrate includes an array of micro-LEDs forming individual pixels. The backplane substrate includes a plurality of pixel logic hardware modules. Each pixel logic hardware module includes a local memory element configured to store a multi-bit pixel intensity value of a corresponding micro-LED for an image frame. The backplane substrate is bonded to a backside of the display substrate such that the pixel logic hardware modules are physically aligned behind the array of micro-LEDs and each pixel logic hardware module is electrically connected to a micro-LED of the corresponding pixel.

Abstract: A laser beam scanning (“LBS”) display device is configured with an optical system that includes a laser beam emitter configured to emit a laser beam. The optical system also includes a driver configured to generate a driving signal for controlling a mirror, such as a microelectromechanical systems (“MEMS”) mirror. The optical system also includes a controller configured to generate a driving signal while rejecting a system disturbance response.

Abstract: A display device includes a display substrate and a backplane substrate. The display substrate includes an array of micro-LEDs forming individual pixels. The backplane substrate includes a plurality of pixel logic hardware modules. Each pixel logic hardware module includes a local memory element configured to store a multi-bit pixel intensity value of a corresponding micro-LED for an image frame. The backplane substrate is bonded to a backside of the display substrate such that the pixel logic hardware modules are physically aligned behind the array of micro-LEDs and each pixel logic hardware module is electrically connected to a micro-LED of the corresponding pixel.

Abstract: The description relates to computing devices that employ steerable optics. One example includes a steering mechanism and a base substrate positioned relative to the steering mechanism. The example also includes an optical substrate positioned over the base substrate and an adhesive complex securing the optical substrate relative to the base substrate with multiple different types of adhesives.

Abstract: A laser beam display device that can dynamically control the resonant frequency of a mirror is provided. The increase the reliability of a device by controlling the resonant frequency of a mirror instead of requiring components of a display device to react to changes in the resonant frequency of a mirror. A controller can drive a mirror with an input signal, receive a signal or data indicating a target resonant frequency, and bias the input signal to control the resonant frequency of the mirror. In some embodiments, the controller can also receive a feedback signal from a mirror indicating a current resonant frequency. The controller can also bias the input signal to increase or decrease the current resonant frequency. By dynamically controlling the resonant frequency of a mirror, a device can minimize any difference between the current resonant frequency detected in a feedback signal and the target resonant frequency.

Abstract: The present disclosure provides a method and system for data transmission, chip, an electronic device, and a computer readable storage medium. The method applied at a first Bluetooth end includes: establishing a point-to-point connection with a second Bluetooth end; acquiring identity information of the second Bluetooth end through the point-to-point connection; and sending broadcast isochronous group information BIGInfo to the second Bluetooth end through the point-to-point connection when the identity information of the second Bluetooth end is verified, to enable the second Bluetooth end to receive a data stream of a broadcast isochronous group BIG sent by the first Bluetooth end according to the BIGInfo.

Abstract: Some embodiments of the present disclosure provide a method for time synchronization, a method for broadcast setting, a chip, an electronic device, and a storage medium. In the present disclosure, time synchronization information is received, wherein the time synchronization information includes a first count value N of at least one connection event at a synchronizing end and a first time, and the first time refers to a time of occurrence of an Nth connection event (101); a second count value K of the at least one connection event and a second time are determined according to at least the first count value N and the first time, wherein the second time refers to a time of occurrence of a Kth connection event, and both N and K are natural numbers (102); and time synchronization is performed based on the second time in response to occurrence of the Kth connection event (103).