Abstract: An electronic device having a first part, a second part, and a touch sensitive panel disposed on the second part has an opened and a closed state, and the touch sensitive panel is covered by the first part in the closed state. The electronic device includes a sensor circuit, a touch simulation facility and a comparator. The sensor circuit is for generating a touch signal indicative for a position where a touch of the touch sensitive panel is detected. The touch simulation facility is for evoking a touch signal at a position of the touch sensitive panel, and includes a touch simulation element which in the closed state of the electronic device is arranged opposite the touch sensitive panel.

Abstract: An electronic device having a touch sensitive panel has an opened and a closed state, and comprises a sensor circuit, a touch simulation facility and a comparator. The sensor circuit is for generating a touch signal indicative for a position where a touch of the touch sensitive panel is detected. The touch simulation facility is for evoking a touch signal at a position of the touch sensitive panel, and comprises a touch simulation element which in the closed state of the electronic device is arranged opposite the touch sensitive panel. The comparator is for comparing the touch signal with a reference value corresponding to the touch simulation element and for generating a correction signal for adjusting a setting of the sensor circuit for compensation of a difference detected between the position where the touch signal is evoked and the position indicated by the touch signal.

Abstract: An electrophoretic display unit is presented that comprises an electrophoretic display panel (1). A medium (5) having embedded therein a plurality of electrophoretic display elements (7) is controlled by a first and a second pixel electrode (22b, 6). In addition a sensor constructed to generate a signal (ST) indicative for a temperature of the display panel and a driver (15) for driving the display panel (1) is provided. The sensor (250) includes a resistance sensor constructed to detect a resistance of the medium (5) between a first (22c) and a second sensor electrode (6), and the driver is controllable according to the resistance detected by the resistance sensor.

Abstract: A lookup table provides voltage waveforms for transitions between a plurality of discrete pixel states forming a set that can be ordered in consecutive states according to a reflectivity of the pixel. An image controller repeatedly executes, in a consecutive drive phase, the steps of retrieving an initial state and update state, matching, when the initial and update states are different, in the ordered set of pixel states of the lookup table, a consecutive state and a corresponding consecutive waveform, the consecutive state forming a path, according to the consecutive drive phase, from the initial state to the update state in the set of pixel states, storing the consecutive state in the memory as new initial state; and controlling a voltage driver to drive the pixel from the initial state to the consecutive state using said consecutive waveform.

Abstract: An electronic device having a touch sensitive panel has an opened and a closed state, and comprises a sensor circuit, a touch simulation facility and a comparator. The sensor circuit is for generating a touch signal indicative for a position where a touch of the touch sensitive panel is detected. The touch simulation facility is for evoking a touch signal at a position of the touch sensitive panel, and comprises a touch simulation element which in the closed state of the electronic device is arranged opposite the touch sensitive panel. The comparator is for comparing the touch signal with a reference value corresponding to the touch simulation element and for generating a correction signal for adjusting a setting of the sensor circuit for compensation of a difference detected between the position where the touch signal is evoked and the position indicated by the touch signal.

Abstract: A lookup table provides voltage waveforms for transitions between a plurality of discrete pixel states forming a set that can be ordered in consecutive states according to a reflectivity of the pixel. An image controller repeatedly executes, in a consecutive drive phase, the steps of retrieving an initial state and update state, matching, when the initial and update states are different, in the ordered set of pixel states of the lookup table, a consecutive state and a corresponding consecutive waveform, the consecutive state forming a path, according to the consecutive drive phase, from the initial state to the update state in the set of pixel states, storing the consecutive state in the memory as new initial state; and controlling a voltage driver to drive the pixel from the initial state to the consecutive state using said consecutive waveform.

Abstract: An electrophoretic display unit is presented that comprises an electrophoretic display panel (1). A medium (5) having embedded therein a plurality of electrophoretic display elements (7) is controlled by a first and a second pixel electrode (6, 22b). In addition a sensor constructed to generate a signal (ST) indicative for a temperature of the display panel and a driver (15) for driving the display panel (1) is provided. The sensor (250) includes a resistance sensor constructed to detect a resistance of the medium (5) between a first (22c) and a second sensor electrode (6), and the driver is controllable according to the resistance detected by the resistance sensor.