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.
Abstract:
A Field-Programmable Gate Array device is provided with programmable interconnect points in the form of interconnect circuits comprising one or more pass transistors, wherein at least some components of the interconnect circuits are implemented in the Back-End-Of-Line part of the Field-Programmable Gate Array device's production process. The memory element in an interconnect point is not produced as a Static Random Access Memory cell, but as a Dynamic Random Access Memory cell, requiring only a single select transistor and a storage capacitor for each memory element. The fabrication of at least the select transistor and the pass transistor involves the use of a thin film semiconductor layer, e.g., Indium Gallium Zinc Oxide, enabling production of transistors with low leakage in the Back-End-Of-Line.
Abstract:
A Field-Programmable Gate Array device is provided with programmable interconnect points in the form of interconnect circuits comprising one or more pass transistors, wherein at least some components of the interconnect circuits are implemented in the Back-End-Of-Line part of the Field-Programmable Gate Array device's production process. The memory element in an interconnect point is not produced as a Static Random Access Memory cell, but as a Dynamic Random Access Memory cell, requiring only a single select transistor and a storage capacitor for each memory element. The fabrication of at least the select transistor and the pass transistor involves the use of a thin film semiconductor layer, e.g., Indium Gallium Zinc Oxide, enabling production of transistors with low leakage in the Back-End-Of-Line.
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:
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 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.