A near-to-eye display device includes a spatial light modulator. The spatial light modulator modulates an illumination wave to create a virtual-scene wave that is steered to a useful portion of an exit pupil plane. Higher diffraction orders and noise beams are filtered out by the user's pupil acting as a spatial filter.

A display device has an image processing unit that determines an error for a pixel location that is based on the difference between an input color dataset and an output color dataset. The error is fed back to the image processing unit to propagate and spread across other neighboring pixel locations. In generating the output color dataset, an error-modified dataset that includes the input dataset and the error may first be generated. The error-modified dataset is examined to ensure the color values fall within the display gamut. The color dataset is also quantized and dithered to make the output dataset having a bit depth that is compatible with what the light emitters can support. Lookup tables and transformation matrices may also be used to account for any potential color shifts of the light emitters due to different driving conditions such as driving currents.

An apparatus comprising a pump configured to deliver insulin, a processor, and a user interface including a color display. Color on the display can be used to bring a user's attention to a change in status of the device or a detected change in status of the patient.

A near-to-eye display device includes a spatial light modulator, a rotatable reflective optical element and a pupil-tracking device. The pupil-tracking device tracks the eye pupil position of the user. Based on the data provided by the pupil-tracking device, the reflective optical element is rotated such that the light modulated by the spatial light modulator is directed towards the user's eye pupil.

An apparatus generates a coherent illumination beam. An embedded light-scattering apparatus in a transparent substrate illuminates a reflective optical element which is also embedded inside the same substrate. The reflective optical element is designed to provide a desired beam profile.

A luminous display substrate includes a base substrate, a light reflective and electrically conductive film layer on the base substrate, and a light-transmittance metal film layer on a side of the light reflective and electrically conductive film layer away from the base substrate. A side of the light reflective and electrically conductive film layer adjacent to the light-transmittance metal film layer is recessed towards the base substrate to form a curved surface.

This document discusses, among other things, an apparatus comprising a pump configured to deliver insulin, a processor, and a user interface including a bistable display. A display element of the bistable display is placed in one of two stable orientations upon application of a biasing voltage and stays in the stable orientation when the biasing voltage is removed. The processor includes a display module configured to display a non-blank reversion display screen on the bistable display when no input is received at the user interface after a specified time duration, and to recurrently change the reversion display screen until input is received at the user interface.

Provided is a display device characterized in that the electric power consumption when optical modulation elements (for example, MEMS shutters) are driven is reduced. A display device (1000) includes a backlight unit (1), a display panel unit (2), a source driver (3), and a controller (4). The backlight unit (1) includes a light source. The display panel unit (2) includes segmented pixel regions AR11 to ARnm each of which includes: a plurality of pixels each of which includes an optical modulation element that performs modulation control with respect to light projected from the backlight unit (1); and a segmented gate driver that controls the optical modulation elements of the pixels. The source driver (3) is a driver that controls the optical modulation elements of the pixels. The controller (4) controls the light source of the backlight unit (1), the segmented gate drivers GD11 to GDnm, and the source driver (3).

In methods and apparatus for increasing efficiency and optical bandwidth of a microelectromechanical system piston-mode spatial light modulator, an example apparatus includes: an electrode with spring legs; a base electrode; a mirror displacement determiner to determine a periodic signal corresponding to a displacement distance of the electrode beyond an instability point of the electrode; and a voltage source to output a periodic voltage to the base electrode in response to the periodic signal. The periodic voltage causes the spring legs to vary displacement of the electrode with respect to the base electrode according to the periodic voltage. The displacement includes distances beyond the instability point.

This document discusses, among other things, an apparatus comprising a pump configured to deliver insulin, a processor, and a user interface including a bistable display. A display element of the bistable display is placed in one of two stable orientations upon application of a biasing voltage and stays in the stable orientation when the biasing voltage is removed. The processor includes a display module configured to display a non-blank reversion display screen on the bistable display when no input is received at the user interface after a specified time duration, and to recurrently change the reversion display screen until input is received at the user interface.