Abstract: A dynamic-voltage-control pixel includes a pixel memory, an input circuit operable at a refresh voltage to receive pixel data and store the received pixel data in the pixel memory, a light emitter, and an output circuit operable at a drive voltage to read the stored pixel data from the pixel memory and control the light emitter to output light according to the read stored pixel data. The drive voltage can be less than the refresh voltage. The input circuit, pixel memory, and output circuit can be connected to a common-voltage wire providing a common voltage for operating each of the input circuit, pixel memory, and output circuit.

Abstract: A current-selectable light-emitting-diode (LED) display includes pixels distributed in an array of rows and columns. The pixels are grouped in mutually exclusive clusters and cluster controllers are connected to each pixel in a cluster of pixels to control the pixels in the cluster to emit light. Each cluster controller comprises a selectable current source. Each of the selectable current sources can include cluster current sources that are responsive to a current-select signal to enable one or more of the cluster current sources. The pixels can include micro-LEDs and the cluster controller can be disposed between the micro-LEDs. The display can be disposed on a display substrate with signal wires. The signal wires can include separate wire segments that are electrically connected through regeneration circuits that regenerate the signals. The display can be an information display or a backlight.

Abstract: A frequency-modulated continuous-wave (FMCW) light detection and ranging (LIDAR) system includes a high-pass filter that includes a first connection and a second connection. The system includes an optical amplifier that couples to the first connection of the high-pass filter. The system includes a power source that couples to the first connection of the high-pass filter and provides power to the optical amplifier. The system includes switching circuitry that includes an output that couples to the second connection of the high-pass filter. The switching circuitry produces at the output a first voltage level and a second voltage level. The first voltage level causes the optical amplifier to turn on, and the second voltage level causes the optical amplifier to turn off.

Abstract: A LIDAR system includes an actuator assembly and actuator position tracking circuitry. The actuator position tracking circuity includes a light emitting diode (LED) to emit a first signal toward an actuator, a photodiode to receive a second signal based on a position of the actuator and generate an output signal, and at least one front-end electronics to produce a low-impedance analog electrical signal based on the output signal.

Abstract: A display includes pixels distributed in a pixel array of rows and columns that are grouped in mutually exclusive pixel clusters on a display substrate in a display area. Cluster controllers are disposed on the display substrate and are each connected to the pixels in a pixel cluster to control the pixels to emit light. A display controller external to the display area is connected to each row of pixels in each pixel cluster with a row wire. Each row of pixels in each pixel cluster can be connected with a cluster row wire and the corresponding cluster row wires of each pixel cluster can be connected together. The cluster controllers can be disposed between pixels in the pixel cluster or between adjacent pixel clusters on the display substrate.

Abstract: A display includes pixels distributed in a pixel array of rows and columns that are grouped in mutually exclusive pixel clusters on a display substrate in a display area. Cluster controllers are disposed on the display substrate and are each connected to the pixels in a pixel cluster to control the pixels to emit light. A display controller external to the display area is connected to each row of pixels in each pixel cluster with a row wire. Each row of pixels in each pixel cluster can be connected with a cluster row wire and the corresponding cluster row wires of each pixel cluster can be connected together. The cluster controllers can be disposed between pixels in the pixel cluster or between adjacent pixel clusters on the display substrate.

Abstract: A frequency-modulated continuous-wave (FMCW) light detection and ranging (LIDAR) system includes an optical source to generate an optical beam at a chirp rate based on a control signal. The system includes a receiver to capture at least a portion of the optical beam and generate a beat frequency based on the chirp rate. The system also includes mixer circuitry to calculate a difference value between the beat frequency and a reference frequency. The system also includes combination circuitry to combine the difference value with an offset voltage to generate an adjusted control signal that is configured to minimize the difference value to maintain the chirp rate.

Abstract: A display with integrated touch screen includes pixels distributed in an array of rows or pixels connected by row wires and columns of pixels connected by column wires defining a display area on a display substrate. The pixels can comprise mutually exclusive subarrays of pixels forming clusters. Each cluster can be independently controlled and can comprise a touch controller for sensing touches. Each pixel can include one or more micro-iLEDs. A first row wire can be driven with a display signal at the same time the touch controller senses one or more second row wires different from the first row wire. The touch controller can sense multiple row wires at a time or can receive a control signal at a frequency of no less than one MHz on a row wire. In some embodiments, the touch controller comprises a capacitance circuit in an integrated circuit separate from the display substrate.

Abstract: A display with integrated touch screen includes pixels distributed in an array of rows or pixels connected by row wires and columns of pixels connected by column wires defining a display area on a display substrate. The pixels can comprise mutually exclusive subarrays of pixels forming clusters. Each cluster can be independently controlled and can comprise a touch controller for sensing touches. Each pixel can include one or more micro-iLEDs. A first row wire can be driven with a display signal at the same time the touch controller senses one or more second row wires different from the first row wire. The touch controller can sense multiple row wires at a time or can receive a control signal at a frequency of no less than one MHz on a row wire. In some embodiments, the touch controller comprises a capacitance circuit in an integrated circuit separate from the display substrate.

Abstract: A passive-matrix controller provides a control signal to each column of multiple columns of components, a driver for each column wire, and a multiplexer. Each column of components is connected to a column wire. The driver provides a drive signal in response to the control signal and the multiplexer comprises an output connected to each column wire and an input connected to each driver and connects the inputs to the outputs in response to a multiplex signal from the passive-matrix controller. The components can be inorganic micro-light-emitting diodes.

Abstract: Embodiments of the present disclosure provide a configurable TIA circuit that can be used as both a single-ended “target TIA” and a differential “reference TIA”. The configurable TIA may include a first circuit to receive an input from a first photodiode (PD), the first circuit comprising a first switch and a first output buffer. The configurable TIA may also include a second circuit to receive an input from a second PD, the second circuit comprising a second switch and a second output buffer. The first and second switches are configured to operate the first and second circuits as independent signal paths via which the input from the first and second PDs can drive the first and second output buffers respectively in a first mode, and in a second mode, combine the input from the first and second PDs into the first output buffer to generate a single differential output.

Abstract: A dynamic-voltage-control pixel includes a pixel memory, an input circuit operable at a refresh voltage to receive pixel data and store the received pixel data in the pixel memory, a light emitter, and an output circuit operable at a drive voltage to read the stored pixel data from the pixel memory and control the light emitter to output light according to the read stored pixel data. The drive voltage can be less than the refresh voltage. The input circuit, pixel memory, and output circuit can be connected to a common-voltage wire providing a common voltage for operating each of the input circuit, pixel memory, and output circuit.

Abstract: A hybrid-control pixel includes a TFT substrate, a TFT circuit formed on the TFT substrate, a micro-device having an integrated-circuit substrate separate and independent from the TFT substrate disposed on or over the TFT substrate, a micro-circuit electrically connected to the TFT circuit, and an LED or other device disposed on the integrated circuit or the TFT substrate. The LED can be electrically connected to the micro-circuit and the TFT circuit and the micro-circuit together control the LED.

Abstract: A method transmits a predetermined signal through a first channel that includes a first digital circuit to produce a first result. The first channel is a functional channel in the FMCW LIDAR system. The method retrieves a second result that is based on the predetermined signal, and determines whether the first result and the second result are nonequivalent. The method then invokes a fault signal in response to determining that the first result and the second result are nonequivalent.

Abstract: A display with integrated touch screen includes pixels distributed in an array of rows or pixels connected by row wires and columns of pixels connected by column wires defining a display area on a display substrate. The pixels can comprise mutually exclusive subarrays of pixels forming clusters. Each cluster can be independently controlled and can comprise a touch controller for sensing touches. Each pixel can include one or more micro-iLEDs. A first row wire can be driven with a display signal at the same time the touch controller senses one or more second row wires different from the first row wire. The touch controller can sense multiple row wires at a time or can receive a control signal at a frequency of no less than one MHz on a row wire. In some embodiments, the touch controller comprises a capacitance circuit in an integrated circuit separate from the display substrate.

Abstract: A current-selectable light-emitting-diode (LED) display includes pixels distributed in an array of rows and columns. The pixels are grouped in mutually exclusive clusters and cluster controllers are connected to each pixel in a cluster of pixels to control the pixels in the cluster to emit light. Each cluster controller comprises a selectable current source. Each of the selectable current sources can include cluster current sources that are responsive to a current-select signal to enable one or more of the cluster current sources. The pixels can include micro-LEDs and the cluster controller can be disposed between the micro-LEDs. The display can be disposed on a display substrate with signal wires. The signal wires can include separate wire segments that are electrically connected through regeneration circuits that regenerate the signals. The display can be an information display or a backlight.

Abstract: A display with integrated touch screen includes pixels distributed in an array of rows or pixels connected by row wires and columns of pixels connected by column wires defining a display area on a display substrate. The pixels can comprise mutually exclusive subarrays of pixels forming clusters. Each cluster can be independently controlled and can comprise a touch controller for sensing touches. Each pixel can include one or more micro-iLEDs. A first row wire can be driven with a display signal at the same time the touch controller senses one or more second row wires different from the first row wire. The touch controller can sense multiple row wires at a time or can receive a control signal at a frequency of no less than one MHz on a row wire. In some embodiments, the touch controller comprises a capacitance circuit in an integrated circuit separate from the display substrate.

Abstract: A dual-pixel-driver display includes pixels distributed in an array of rows and columns defining a display area and a dual-pixel driver disposed within the display area. Ones of the pixels are grouped in mutually exclusive first and second pixel clusters. The dual-pixel driver comprises a driver input, a first driver output, and a second driver output. The first driver output and the second driver output are both commonly responsive to the driver input. The first driver output drives the pixels in the first pixel cluster and the second driver output drives the pixels in the second pixel cluster.

Abstract: A current-selectable light-emitting-diode (LED) display includes pixels distributed in an array of rows and columns. The pixels are grouped in mutually exclusive clusters and cluster controllers are connected to each pixel in a cluster of pixels to control the pixels in the cluster to emit light. Each cluster controller comprises a selectable current source. Each of the selectable current sources can include cluster current sources that are responsive to a current-select signal to enable one or more of the cluster current sources. The pixels can include micro-LEDs and the cluster controller can be disposed between the micro-LEDs. The display can be disposed on a display substrate with signal wires. The signal wires can include separate wire segments that are electrically connected through regeneration circuits that regenerate the signals. The display can be an information display or a backlight.

Abstract: A current-selectable light-emitting-diode (LED) display includes pixels distributed in an array of rows and columns. The pixels are grouped in mutually exclusive clusters and cluster controllers are connected to each pixel in a cluster of pixels to control the pixels in the cluster to emit light. Each cluster controller comprises a selectable current source. Each of the selectable current sources can include cluster current sources that are responsive to a current-select signal to enable one or more of the cluster current sources. The pixels can include micro-LEDs and the cluster controller can be disposed between the micro-LEDs. The display can be disposed on a display substrate with signal wires. The signal wires can include separate wire segments that are electrically connected through regeneration circuits that regenerate the signals. The display can be an information display or a backlight.