A light-sensing heads-up display device for automobiles is provided with an emissive mode and a reflective mode. The emissive mode is activated when an ambient light sensor detects the vehicle is operating in relative darkness. The reflective mode is activated when ambient light sensor detects the vehicle is operating in relatively bright light. Emissive mode uses a video display to project reversed navigational data which is then seen in mirror image on a driver's windshield. Reflective mode uses external sunlight to reflect reversed navigational data from white particles in an e-ink display, which is then seen in mirror image on a driver's windshield. Light-sensing heads-up display device communicates wirelessly with a smartphone or navigation device to receive navigation data and may be operated by voice command. Cognitive display methods translate received navigation data for minimal distraction.

An electrowetting display device includes a control system for changing a configuration of first, second and third fluids by applying a voltage level of a first voltage to a first electrode and by applying a voltage level of a second voltage to a second electrode. The voltage level of the first voltage is selected from a first plurality of voltage levels and the voltage level of the second voltage is selected from a second plurality of voltage levels, the second plurality of voltage levels comprising fewer voltage levels than the first plurality of voltage levels.

A display device comprising a plurality of pixels, each of which is configurable into both a light emitting mode and a reflective mode. Each pixel may be realized via a stacking of display technologies or a merger of display technologies. The display device may be driven by display driver circuitry operable to select which mode the pixels of the device operate in at any given time. The display driver circuitry may in turn be driven by a software driver which issues commands to the display driver circuitry and which may determine which mode is selected.

Embodiments of the present disclosure provide a display device and a driving method. The display device includes a display panel that includes a plurality of pixels, each of the plurality of pixels includes a pixel electrode, wherein the pixel electrode includes a plurality of pixel sub-electrodes spaced from each other; and a drive circuit configured to load a first drive voltage with different maintaining durations to at least part of a plurality of pixel sub-electrodes in a set pixel through a signal output terminal in a picture display stage, so that the set pixel is switched from a first state to a second state; wherein the set pixel is at least one of the plurality of pixels.

Electrophoretic displays with multi-particle electrophoretic media and improved methods for driving such multi-particle electrophoretic media, especially using active matrix backplanes and controllers. Larger look-up tables are used, which include a plurality of time-shifted waveforms for each color transition. The controller can thus easily cause a phase shift in the color flashes across the display, which ultimate diminishes or removes the perception that the device is flashing during an update from a first image to a second image. The methods are generalizable to any electrophoretic display using waveforms, and are particularly well-suited for newer multi-particle electrophoretic displays capable of producing four or more colors at each pixel.

The present disclosure discloses a low-power display mechanism applied to a low-energy-storage device, comprising a circuit board assembly, a storage battery, and a low-power display screen. The low-power display screen comprises a top transparent electrode layer, a color developing particle layer, and a bottom electrode layer. In the present disclosure, the low-power display screen only consumes electricity when changing display content, and the display content can be maintained for long time and will not disappear even if there is a power outage. Furthermore, the display content can be clear and visible under strong light. The design significantly reduces the energy consumption by reducing the frequency of applying an electric field, and is suitable for being used in various low-energy-storage devices.

In a device for displaying images by application of an electric field to a charged substance, a structure for reducing afterimages and a method for manufacturing the structure are provided. The device is a display device which includes a plurality of pixel electrodes and a charged layer (a layer including a charged substance) provided over the pixel electrodes. An end of one of two pixel electrodes that are adjacent to each other among the plurality of pixel electrodes has a depression in an end-face direction, and an end of the other of the pixel electrodes has a projection in the end-face direction. In a state in which the depression and the projection are in a set, a gap is formed between the two pixel electrodes.

A multi-color display device has front and rear electrodes on opposed sides of an electrophoretic medium. The device has a voltage controller configured to apply a first and a smaller second potential difference, of either polarity, between the electrodes. The electrophoretic medium has first, second, and third species of particles of differing colors and charge polarities. The first and second particles move independently of one another in response to the first potential difference, but upon application of the second potential difference form charged aggregates, moving as a unit, having an aggregate color different from the first and second colors.

The present invention is directed to a color display device in which each pixel can display at least six high-quality color states, and an electrophoretic fluid for such an electrophoretic display. The different types of particles exhibit different levels of attraction force to display different color states.

A variable transmission display comprises an electrophoretic medium having electrically charged particles dispersed in a fluid, the electrophoretic medium being capable of assuming a light-transmissive state and a substantially non-light-transmissive state; a light-transmissive first electrode disposed adjacent one side of the electrophoretic medium; light-transmissive second electrodes disposed adjacent the other side of the electrophoretic medium; and voltage means for varying the potential each of the second electrodes independently of one another.