In the use of a display of a converter, method for operating a converter, and converter, the converter having an address code switch, in particular on its housing, and in an actuation of the address code switch and during a subsequent, predefined period of time, a respective value corresponding to the respective switch position of the address code switch is displayed by the display. Operating information of the converter is displayed in all other cases.

In the use of a display of a converter, method for operating a converter, and converter, the converter having an address code switch, in particular on its housing, and in an actuation of the address code switch and during a subsequent, predefined period of time, a respective value corresponding to the respective switch position of the address code switch is displayed by the display. Operating information of the converter is displayed in all other cases.

Described are various embodiments of a light field vision-based testing device, system and method. One such device comprises an array of digital display pixels; a corresponding array of light field shaping elements (LFSEs); a hardware processor operable to adjust perception of a defined optotype within a range of visual acuity compensations; and an adjustable refractive optical system adjustable to selectively produce a complementary visual acuity compensation to extend each of a cylindrical compensation range and a spherical compensation range.

Described are various embodiments of a light field device and vision-based testing system using same. Different embodiments provide for a vision-based testing device comprising a one or more view zone optimization techniques such as, but not limited to, a predominant view zone isolator, a view zone output realignment solution, and a coarse view zone adjustment transfer solution, as well as other view zone artefact reduction techniques and multi-depth perception adjustment techniques.

A dot-matrix display device includes a display, a converter circuit, and a control circuit. The display includes multiple gate signal lines, multiple source signal lines, and multiple pixel circuits arranged at intersections of the multiple gate signal lines and source signal lines. The converter circuit obtains a serial signal SI in synchronization with a first clock signal SCK input from outside and converts the obtained serial signal to a parallel signal. The serial signal is input from outside serially. The serial signal includes address data for specifying, of the multiple pixel circuits, a pixel circuit to undergo a refresh of image data, and the image data to be provided to the specified pixel circuit. The control circuit generates, based on a second clock signal ENB_V having a lower frequency than the first clock signal, a control signal for controlling timing of serial-to-parallel conversion performed by the converter circuit.

A display driver includes: a driver circuit that drives an electro-optical panel; an output terminal that outputs an output signal from the driver circuit; an output line that couples the output of the driver circuit and the output terminal; and an inspection circuit that detects an abnormality of the output signal output by the driver circuit to the output line by monitoring a voltage of the output signal. The inspection circuit determines whether the voltage of the output signal is abnormal by comparing the voltage of the output signal with a reference voltage whose voltage changes in each given cycle.

Described are various embodiments of a light field device and vision-based testing system using same. Different embodiments provide for a vision-based testing device comprising a one or more view zone optimization techniques such as, but not limited to, a predominant view zone isolator, a view zone output realignment solution, and a coarse view zone adjustment transfer solution, as well as other view zone artefact reduction techniques and multi-depth perception adjustment techniques.

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 bicycle display is provided that allows the user to recognize the selected operation mode. The bicycle display includes a display screen configured to display information corresponding to a first operation mode and a second operation mode of a bicycle component that is selectable between at least the first operation mode and the second operation mode in accordance with operation of an operation unit. The display screen includes a switching region switched between a first display state, which shows the switching region in a first color in a state where the first operation mode is selected, and a second display state, which shows the switching region in a second color in a state where the second operation mode is selected.