Abstract: This disclosure provides systems, methods and apparatus for controlling the states of a light modulator used in displays. A display apparatus includes pixel circuits coupled to the light modulators. Each pixel circuit can include an output node, a data capacitor, a charge transistor for charging the output node and a discharge transistor for selectively conducting a current between the output node and an update interconnect providing an update voltage. The display apparatus can include a controller for testing the pixel circuits to determine two or more update voltage levels, each update voltage level causing the discharge transistor to conduct current. The controller also can be configured to determine a logical high voltage level to be stored in the data capacitor based on the plurality of update voltage levels.

Abstract: This disclosure provides systems, methods and apparatus for controlling the states of a light modulator used in displays. A display apparatus includes pixel circuits coupled to the light modulators. Each pixel circuit can include an output node, a data capacitor, a charge transistor for charging the output node and a discharge transistor for selectively conducting a current between the output node and an update interconnect providing an update voltage. The display apparatus can include a controller for testing the pixel circuits to determine two or more update voltage levels, each update voltage level causing the discharge transistor to conduct current. The controller also can be configured to determine a logical high voltage level to be stored in the data capacitor based on the plurality of update voltage levels.

Abstract: This disclosure provides systems, methods and apparatus for a display apparatus including dummy display elements that can be switched between being coupled to a test bus and a drive bus. When connected to the drive bus, the circuit components, including thin-film transistors, of the dummy display element experience exposure to typical operating signals. When connected to the test bus, the display apparatus can test the operating parameters of the dummy display element circuit components.

Abstract: This disclosure provides systems, methods and apparatus for a display apparatus including dummy display elements that can be switched between being coupled to a test bus and a drive bus. When connected to the drive bus, the circuit components, including thin-film transistors, of the dummy display element experience exposure to typical operating signals. When connected to the test bus, the display apparatus can test the operating parameters of the dummy display element circuit components.

Abstract: This disclosure provides systems, methods and apparatus for a display apparatus including dummy display elements that can be switched between being coupled to a test bus and a drive bus. When connected to the drive bus, the circuit components, including thin-film transistors, of the dummy display element experience exposure to typical operating loads. When connected to the test bus, the display apparatus can test the operating parameters of the dummy display element circuit components.

Abstract: This disclosure provides systems, methods and apparatus for a display apparatus including dummy display elements that can be switched between being coupled to a test bus and a drive bus. When connected to the drive bus, the circuit components, including thin-film transistors, of the dummy display element experience exposure to typical operating loads. When connected to the test bus, the display apparatus can test the operating parameters of the dummy display element circuit components.

Abstract: This disclosure provides implementations of systems, devices, components, computer products, methods, and techniques for correcting or compensating for moving visual object distortions. In one aspect, a method includes combining image data from a first frame with image data from a second frame to generate a fused image frame. Additionally or alternatively, the method can include applying a shear transformation to the image data in the first frame to generate a sheared image frame. One of, or a combination of, the fused image frame and the sheared image frame may be displayed as a pre-distorted image frame so that, when viewed on the display, the pre-distorted image frame compensates for distortion that can otherwise be perceived by a user when viewing the displayed moving visual object.

Abstract: Techniques are disclosed for updating an array of display elements of an electronic display. The electronic display, which may be an interferometric modulator (IMOD) display, includes an array of display elements that is updated, at a frame update rate, on a frame by frame basis. Each frame includes data to be written to a plurality of pixel rows, each pixel row including at least a respective first display element line (DEL) of a first color and a respective second DEL of a second color. A processor compares display data for each pixel row in a first frame with display data for a corresponding pixel row in a comparison frame, and updates only selected DEL's based on the comparison. A polarity of a bias voltage of a subset of DEL's in the display, is periodically inverted, the subset of DEL's being substantially fewer than all of the DEL's.

Abstract: A display mode, including an update rate and/or resolution of an electronic display device, is dynamically adjusted by computing a change rate metric (CRM) representative of an image change rate, and adjusting, based on the CRM, at least one of the update rate and the image resolution. The display device may be switched between at least two display modes, based on the CRM, which may be computed by comparing each pixel row in a first frame with a corresponding pixel row in a comparison frame, and determining a number of pixel rows that have changed. A cyclic redundancy check (CRC) value for each pixel row may be computed, and the CRM may then be computed by determining a number of pixel rows that have a changed CRC value with respect to a corresponding pixel row of the comparison frame.