Abstract: A system and for distributing data for 3D light field projection and a method thereof. The system comprises input terminals and output terminals that are connectable to pixel elements of a display. Data paths are established between input terminals and output terminals, and are controlled by data switches. The system also comprises a control plane adapted for applying control variables to the data switches. Control switches of the control plane select the control variables which are applied to the data switches. Sequences of control variables and enable variables propagate along at least one first delay line and along at least one second delay line, respectively. Delay units of the at least one first delay line and of the at least one second delay line have a synchronous relationship. During system run-time patterns contained in the stream of input data are detected for determining the sequences of control variables.

Abstract: According to an aspect of the present inventive concept there is provided a device for polarization dependent imaging, comprising a detector comprising an array of light sensitive elements; a plurality of light propagating units, each comprising: a funnel element having a collecting end and a transmitting end, the funnel element being configured to collect light at the collecting end and propagate the light to the transmitting end; a waveguide having a receiving end and a distributing end, the waveguide being configured to receive the light from the transmitting end at the receiving end and propagate the light to the distributing end, wherein the waveguide is configured to propagate the light through the waveguide in dependence of polarization such that a distribution of the light at different locations of the distributing end is dependent on polarization of the light.

Abstract: Example embodiments relate to imaging systems and methods for acquisition of multi-spectral images. One example imaging system includes a detector that includes an array of light sensitive elements arranged in rows and columns. Each light sensitive element is configured to generate a signal dependent on an intensity of light incident onto the light sensitive element. The imaging system also includes a plurality of wavelength separating units. Each wavelength separating unit is configured to spatially separate incident light within a wavelength range into a number of wavelength bands distributed along a line. The line is a straight line. Each wavelength band along the line is associated with a mutually unique light sensitive element. Further, the imaging system includes a processing unit configured to define a number of mutually unique clusters of light sensitive elements for summing signals from the light sensitive elements within the respective clusters.

Abstract: Example embodiments relate to detectors for detecting electromagnetic radiation. One embodiment includes a detector for detecting electromagnetic radiation spanning a range from a first wavelength to a second wavelength. The detector includes an array of funnel elements for propagating electromagnetic radiation from a second plane towards a first plane. Each of the funnel elements includes an entrance end and an exit end. The entrance ends of the array of funnel elements define the second plane. The entrance end is larger than half of the second wavelength in a medium from which the electromagnetic radiation enters the detector. The exit end is smaller than half of the first wavelength of in the medium. The detector also includes an array of photosensitive elements for detecting electromagnetic radiation incident on the array of photosensitive elements. Each funnel element is associated with a photosensitive element. The array of photosensitive elements defines the first plane.

Abstract: Example embodiments relate to imaging systems and methods for acquisition of multi-spectral images. One example imaging system includes a detector that includes an array of light sensitive elements arranged in rows and columns. Each light sensitive element is configured to generate a signal dependent on an intensity of light incident onto the light sensitive element. The imaging system also includes a plurality of wavelength separating units. Each wavelength separating unit is configured to spatially separate incident light within a wavelength range into a number of wavelength bands distributed along a line. The line is a straight line. Each wavelength band along the line is associated with a mutually unique light sensitive element. Further, the imaging system includes a processing unit configured to define a number of mutually unique clusters of light sensitive elements for summing signals from the light sensitive elements within the respective clusters.

Abstract: A pixel circuit for driving a light-emitting diode (LED) comprises a current-mirror, comprising a primary current path and a secondary current path, arranged to mirror a current through the primary current path to the secondary current path. The current through the primary current path is settable by switching a reference current into the primary current path through a reference current line. The secondary current path is configured to drive the LED. The pixel circuit also includes a switch component arranged to switch the LED to and from the secondary current path based on one or more switch control lines.

Abstract: A compensated current mirror circuit comprises a current mirror with a primary current path and a secondary current path, configured to mirror a current through the primary current path to the secondary current path. The current is settable by switching a reference current through a reference current line into the primary current path. A primary current mirror transistor is connected in series with the primary current path. A secondary current mirror transistor is connected in series with the secondary current path. A gate of the primary current mirror transistor is connected to a gate of the secondary current mirror transistor at a current mirror node. A compensation block is connected to a back gate of the secondary current mirror transistor and to one or more compensation control lines, and is configured to apply a compensation signal at the back gate based on the compensation control lines.

Abstract: A semiconductor detector (100) for electromagnetic radiation within a wavelength range is disclosed, comprising a first waveguide portion (110), a funnel element (130) configured to funnel incident electromagnetic radiation into a first end (112) of the first waveguide portion, and a second waveguide portion (120) extending in parallel with the first waveguide portion. The second waveguide portion is coupled to the first waveguide portion and configured to out-couple electromagnetic radiation from the first waveguide portion, within a sub-range of the wavelength range. Further, a photodetector (140) including a photoactive layer (144) is arranged at a second end (114) of the first waveguide portion and at an end (124) of the second waveguide portion, and configured to separately detect electromagnetic radiation transmitted through and exiting the first waveguide portion and the second waveguide portion.

Abstract: A method includes representing dots of an image to be displayed within a field by a digital image code. The field is divided into sub-fields which are further divided into a first and second time interval which respectively comprise a first and a second number of equally long time slots. Time slots are assigned to each bit of the digital image code according to each bit's significance. Successive time slots of the first time interval are assigned to one of the bits of the image code and successive time slots of the second time interval are assigned to a different one of the bits of the image code. Within the duration of at least one sub-field, each rows is selected twice for respectively writing a first bit of the image code during the first time interval and writing a second bit of the image code during the second time interval.

Abstract: A system and for distributing data for 3D light field projection and a method thereof. The system comprises input terminals and output terminals that are connectable to pixel elements of a display. Data paths are established between input terminals and output terminals, and are controlled by data switches. The system also comprises a control plane adapted for applying control variables to the data switches. Control switches of the control plane select the control variables which are applied to the data switches. Sequences of control variables and enable variables propagate along at least one first delay line and along at least one second delay line respectively. Delay units of the at least one first delay line and of the at least one second delay line have a synchronous relationship. During system run-time patterns contained in the stream of input data are detected for determining the sequences of control variables.

Abstract: A method for driving an active matrix display comprising a plurality of pixels, wherein each pixel comprises a drive transistor having a driver gate, is disclosed. The method comprises: receiving information of a desired image to be displayed; determining a compensated voltage for the driver gate for each pixel based on calibration data, wherein the calibration data comprises a set of individual calibration values applying to different pixels, and wherein the compensated voltage compensates for differences between pixels affecting a relation of an intensity of light output by the pixel as function of a difference between the voltage applied to the driver gate and a threshold voltage of the drive transistor; and outputting the compensated voltage for the driver gate for each of the pixels.

Abstract: A semiconductor detector (100) for electromagnetic radiation within a wavelength range is disclosed, comprising a first waveguide portion (110), a funnel element (130) configured to funnel incident electromagnetic radiation into a first end (112) of the first waveguide portion, and a second waveguide portion (120) extending in parallel with the first waveguide portion. The second waveguide portion is coupled to the first waveguide portion and configured to out-couple electromagnetic radiation from the first waveguide portion, within a sub-range of the wavelength range. Further, a photodetector (140) including a photoactive layer (144) is arranged at a second end (114) of the first waveguide portion and at an end (124) of the second waveguide portion, and configured to separately detect electromagnetic radiation transmitted through and exiting the first waveguide portion and the second waveguide portion.

Abstract: A method includes representing dots of an image to be displayed within a field by a digital image code. The field is divided into sub-fields which are further divided into a first and second time interval which respectively comprise a first and a second number of equally long time slots. Time slots are assigned to each bit of the digital image code according to each bit's significance. Successive time slots of the first time interval are assigned to one of the bits of the image code and successive time slots of the second time interval are assigned to a different one of the bits of the image code. Within the duration of at least one sub-field, each rows is selected twice for respectively writing a first bit of the image code during the first time interval and writing a second bit of the image code during the second time interval.

Abstract: A display of an active matrix thin film emitter LED type is provided, including a substrate, a plurality of pixels of a thin film emitter LED type arranged separated from each other on the substrate, a plurality of thin film photodetectors arranged between the pixels, an encapsulation layer covering the pixels and photodetectors, one or more diaphragms of a visible-light-absorbing material, provided on the encapsulation layer and including a plurality of apertures each centered over a respective one of the photodetectors, and at least one cover layer transparent to visible light and provided on the encapsulation layer and the one or more diaphragms. Methods of operating and manufacturing of such a display are also provided.

Abstract: A conformable matrix display device is provided with row conductors on the conformable carrier, each for a respective row of the matrix of pixel circuits. Each row conductor has serpentine trajectories in spaces between the pixel circuits in the respective row. Power supply voltage and selection pulse signals are transmitted over the same row conductors. Each row conductor is connected to supply voltage and selection inputs of the pixel circuits in the respective row. Each pixel circuit has a pulse transmission circuit coupled between the selection input and the control input of a de-multiplexing circuit for de-multiplexing data signals on column conductors. In this way the power supply voltage and the selection signal can be supplied making shared use of space between the pixel circuits. Thus the number of conductors in the matrix display device is reduced, which enables a greater distance between the conductors and/or bends in the conductors, which makes the circuit more stretchable and/or bendable.

Abstract: A method for driving an active matrix display comprising a plurality of pixels, wherein each pixel comprises a drive transistor having a driver gate, is disclosed. The method comprises: receiving information of a desired image to be displayed; determining a compensated voltage for the driver gate for each pixel based on calibration data, wherein the calibration data comprises a set of individual calibration values applying to different pixels, and wherein the compensated voltage compensates for differences between pixels affecting a relation of an intensity of light output by the pixel as function of a difference between the voltage applied to the driver gate and a threshold voltage of the drive transistor; and outputting the compensated voltage for the driver gate for each of the pixels.

Abstract: A conformable matrix display device is provided with row conductors on the conformable carrier, each for a respective row of the matrix of pixel circuits. Each row conductor has serpentine trajectories in spaces between the pixel circuits in the respective row. Power supply voltage and selection pulse signals are transmitted over the same row conductors. Each row conductor is connected to supply voltage and selection inputs of the pixel circuits in the respective row. Each pixel circuit has a pulse transmission circuit coupled etween the selection input and the control input of a de-multiplexing circuit for de-multiplexing data signals on column conductors. In this way the power supply voltage and the selection signal can be supplied making shared use of space between the pixel circuits. Thus the number of conductors in the matrix display device is reduced, which enables a greater distance between the conductors and/or bends in the conductors, which makes the circuit more stretchable and/or bendable.

Abstract: A microfluidic pumping system for providing continuous or pulsed pumping action of a sample fluid along a microfluidic channel of a microfluidic device is described. The pumping system comprises at least one actuator comprising an actuator channel and at least one polarizer for generating pumping fluid motion, and at least one microfluidic rectification system for facilitating the flow of a sample fluid in a predetermined direction, the at least one microfluidic rectification system being laid out in or along the microfluidic channel, and the at least one actuator being adapted for creating a pressure in the microfluidic channel, the system thus being adapted for providing continuous or pulsed fluid movement of the sample fluid along the microfluidic channel when actuation of the pumping fluid in the actuator channel takes place and further providing sample fluid immobilization when no actuation takes place.

Abstract: A method for digital driving of an active matrix display with a predetermined frame rate is described. The display contains a plurality of pixels organized in a plurality of rows and a plurality of columns. The method includes representing each of the plurality of pixels of an image to be displayed within a frame by an n-bit digital image code. The method also includes dividing the image frame into sub-frames, which may be of substantially equal duration. Within each sub-frame, the method includes sequentially selecting at least one of the plurality of rows twice. Upon a first selection, a first digital code is written to the selected row and upon a second selection a second digital code is written to the selected row. There is a predetermined time delay between the second selection and the first selection. Digital driving circuitry is also described.

Abstract: Digital driving circuitry for driving an active matrix display comprising a plurality of pixels logically organized in a plurality of rows and a plurality of columns, each pixel comprising a light emitting element, comprises a current driver for each of the plurality of columns for driving a predetermined current through the corresponding column, the predetermined current being proportional to the number of pixels that are ON in that column. The digital driving circuitry further comprises digital select line driving circuitry for sequentially selecting the plurality of rows, and digital data line driving circuitry for writing digital image codes to the pixels in a selected row, synchronized with the digital select line driving circuitry.