A mobile phone may include a display, an enclosure enclosing the display and including a front cover positioned over the display and defining a front exterior surface, and a rear cover defining a rear exterior surface and a raised sensor array region along the rear exterior surface. The raised sensor array region may define a first hole and a second hole. The second hole may be defined by a first opening along an interior surface of the rear cover and having a first opening size and a second opening along the rear exterior surface of the rear cover and having a second opening size smaller than the first opening size. The mobile phone may further include a first camera having a first lens assembly extending into the first hole, and a second camera having a second lens assembly extending into the second hole.

A liquid crystal device includes a liquid crystal panel and a liquid crystal driver. The liquid crystal panel includes a segment electrode, a segment signal line connected to the segment electrode, and a segment signal line connected to the segment electrode. The liquid crystal driver includes a segment terminal to be connected to the segment signal line, a segment driving circuit that outputs a segment driving signal to the segment terminal, a segment terminal to be connected to the segment signal line, and an anomalous segment detection circuit that detects anomalous driving of the segment electrode based on a segment monitoring signal that is input to the segment terminal from the segment electrode via the segment signal line.

A patient support apparatus, such as a bed, cot, stretcher, recliner, or the like, includes a patient support surface, a display, a plurality of indicators and/or controls, an ambient light sensors, and a controller. The display is adapted to be illuminated at multiple illumination levels, and the controller is adapted to receive ambient light level readings from the ambient light sensor, to use the ambient light level readings to automatically select a particular brightness level for the display, and to cause the display to display information at the particular brightness level. In some embodiments, multiple ambient light sensors are included and the readings of those within a valid range are averaged together to determine the particular brightness level. Machine learning algorithms may also be included for selecting the brightness level based on a user's prior history of manually selecting a brightness level.

A patient support apparatus, such as a bed, cot, stretcher, recliner, or the like, includes a patient support surface, a display, a plurality of indicators and/or controls, an ambient light sensors, and a controller. The display is adapted to be illuminated at multiple illumination levels, and the controller is adapted to receive ambient light level readings from the ambient light sensor, to use the ambient light level readings to automatically select a particular brightness level for the display, and to cause the display to display information at the particular brightness level. In some embodiments, multiple ambient light sensors are included and the readings of those within a valid range are averaged together to determine the particular brightness level. Machine learning algorithms may also be included for selecting the brightness level based on a user's prior history of manually selecting a brightness level.

A method may include generating display driver signals that vary between only two levels and applying the display driver signals to opposing electrodes of a display segment within a display device. An intrinsic capacitance of the display device filters the display driver signals to generate different analog signal levels at the display segment of the display device. The method varies the pulse density of the display driver signals to select or de-select the display segment based on an average voltage magnitude across the display segment over a time period. The display segment is activated when the average voltage magnitude exceeds a threshold value.

A method may include generating display driver signals that vary between only two levels and applying the display driver signals to opposing electrodes of a display segment within a display device. An intrinsic capacitance of the display device filters the display driver signals to generate different analog signal levels at the display segment of the display device. The method varies the pulse density of the display driver signals to select or de-select the display segment based on an average voltage magnitude across the display segment over a time period. The display segment is activated when the average voltage magnitude exceeds a threshold value.

A thermostatic radiator valve supports a display that is configurable to display TRV information for a desired viewing direction to facilitate reading by a user, where the TRV comprises a configurable electronic display, a configuration circuit, and a processing device. The configuration circuit is capable of detecting when the TRV has been installed, determining a desired display orientation from a plurality of orientations with respect to a designated surface via a sensor in response to the detecting, and generating a display indicator indicative of the desired display orientation. The processing device is capable of receiving the display indicator and configuring the configurable electronic display to display the TRV information in the desired display orientation.

A bias voltage generator circuit may include a mode control circuit, a clock generator circuit coupled with the mode control unit and configured to generate a plurality of clock signals, and a charge pump circuit configured to receive the clock signals. The charge pump circuit may be coupled with the mode control circuit and operable to output selectable output voltages according to input from the mode control circuit. The output selectable voltages may depend upon the clock signals.

A bias voltage generator circuit may include a mode control circuit, a clock generator circuit coupled with the mode control unit and configured to generate a plurality of clock signals, and a charge pump circuit configured to receive the clock signals. The charge pump circuit may be coupled with the mode control circuit and operable to output selectable output voltages according to input from the mode control circuit. The output selectable voltages may depend upon the clock signals.

A verifiable display is provided that enables the visual content of the display to be detected and confirmed in a variety of ambient lighting conditions, enviroments, and operational states. In particular, the verifiable display has a display layer that is capable of visually setting an intended message for human or machine reading, with the intendended message being set using pixels. Depending on the operational condition of the display and the ambient light, for example, the message that is actually displayed and perceivable may vary from the intended message. To detect what message is actually displayed, a light detection layer in the verifiable display detects the illumination state of the pixels, and in that way is able to detect what message is actually being presented by the display layer.