A method of updating an electrophoretic display that makes use of an electrophoretic display capable of receiving and displaying a transmitted digital photograph, a marker and a digital camera capable of transmitting digital images to a destination, the display including a transparent cover that can be marked on by the marker. First, an image is displayed on the electrophoretic display, and the marker is used to mark the cover, thereby forming markings. Then a digital photograph of the display is taken with the digital camera. Finally, the photograph is transmitted to the electrophoretic display and displayed on the electrophoretic display, thereby displaying both the image and the markings.

Disclosed is a three-dimensional advertisement device. The present invention includes: a frame having a predetermined shape; a plurality of unit cells supported by the frame and arrayed in an X-Y matrix; and a controller for selectively driving the unit cells according to an external input signal, wherein the unit cell includes: a cell plate having a magnet on a rear surface thereof and having an upper end hinge-coupled to the frame, the cell plate being vertically disposed; and an electromagnet arranged to face the magnet of the cell plate to enable the cell plate to rotate forward when power is applied thereto according to a signal of a controller. The cell plate of the unit cells includes a reflection plate such that advertisement text is three-dimensionally expressed through a combination of the cell plates which rotate to be opened.

A display assembly, having a base comprised of polymeric material, and having a front wall of at least one hundred square centimeters in area, and a rearward-extending base peripheral wall of at least 0.5 cm height. The front wall has raised regions and recessed regions that extend at least as far back as the peripheral wall at its furthest rearmost extent, so that when the base is placed against a flat surface the back of the recessed regions touches the flat surface. A polymeric cover is adapted to tension fit to the base, the polymeric cover including a generally transparent front wall. Translucent display media interposed between the base and the cover and a set of energy efficient lighting devices disposed in the recessed regions.

The invention lies in the field of tactile displays and optical-tactile seeing aids. In order, proceeding from the known tactile displays having linear magnetic actuators, to provide such an electromagnetic actuator for tactile applications, in particular for tactile pins in Braille script displays and graphical surface displays, by means of which electromagnetic actuator an inexpensive bistable electromagnetic linear drive unit of simple mechanical design can be realized, the bar of the actuator consists of a material having very high coercivity, i.e. the polarity thereof cannot be changed, the bar being axially enclosed by a hard magnetic sleeve having at most the same length and having considerably lower coercivity, i.e. the polarity thereof can be changed, and the bar being freely movable in the axial direction and the actuation distance of the bar being defined by the excess length of the bar in comparison with the length of the hard magnetic sleeve, such that an auxiliary pole is formed at one end of the bar and a planar main pole is formed at the opposite end.

The present invention discloses a layered electro-magnetic refreshable braille display device and braille reader. The layered electro-magnetic refreshable braille display device includes three layers of braille display modules and a touch panel. Each braille display module includes 5 plates and a plurality of tactile pin driving mechanisms for driving the up and down of the braille dots. One or more lines of braille cells are arranged on the touch panel. Each line of braille cells displays a plurality of braille characters. A microprocessor is connected to a braille translation module, a voice playing module and an interaction controller respectively, wherein the interaction controller is connected to the braille display device, to form the braille reader. This device can display one or more lines of braille characters by relying on the electro-magnetic principle. It boasts real-time refreshing of the braille, synchronization of braille display and voice playing.

The utility model discloses an ejection device, comprising a housing, an ejector, a rotor, a drive unit and guide units, wherein the housing is a hollow structure with an opening; the ejector is disposed in the housing; the drive unit drives the rotor to rotate; during rotating, the rotor drives the ejector to rotate along the circumference of the housing and drives the ejector to move toward the opening; guide slots are formed on the inner wall of the housing; the guide slots are disposed along the ejection direction of the ejector; and the guide units are disposed on the outer wall of the ejector and slidably disposed in the guide slots. The ejection device provided by the utility model is not only easily operated, but also simple in structure and small in size, does not require a large magnet, and can reduce the product weight.

A recording layer is described that comprises a magnetizable material configured to store an image represented by magnetized regions of the magnetizable material. The magnetizable material may be brought into proximity with a magnetically responsive display layer, which may cause a change in an optical state of the display layer such that a facsimile of the image represented by the magnetized regions is produced within the display layer.

One variation of a method for updating a flip-disc display includes, at each panel controller within each panel within the flip-disc display: accessing a frame defining target color positions of flip-disc pixels in each module in the corresponding panel; designating a subset of flip-disc pixels in the panel based on differences between target color positions of flip-disc pixels defined in the frame and current color positions of flip-disc pixels in the panel; defining a discontinuous order for serially issuing update commands to each module in the panel; and, during each update instance in a series of update instances within the current update cycle, serving a next update command to each module in the panel to invert one flip-disc pixel in each module in the panel according to the discontinuous order of update commands assigned to each module in the panel.

A light indicator is comprised of six segments or slices that may each be individually and vividly lit with various colors and at various intensities in order to provide information in a point-of-use context, while also minimizing or entirely eliminating bleeding of colored light from one segment to another during use. The light indicator comprises a case containing a processor, memory, and LED controller, and is capable of lighting one or more segments based partially or wholly upon instructions from a remote controller or based entirely on instructions stored in its own memory. In addition to being able to simultaneously light any combination of segments to a desired color and intensity, the indicator is also capable of performing special modes including directional indication, a run mode indication, and a gauge mode indication.

A light indicator is comprised of six segments or slices that may each be individually and vividly lit with various colors and at various intensities in order to provide information in a point-of-use context, while also minimizing or entirely eliminating bleeding of colored light from one segment to another during use. The light indicator comprises a case containing a processor, memory, and LED controller, and is capable of lighting one or more segments based partially or wholly upon instructions from a remote controller or based entirely on instructions stored in its own memory. In addition to being able to simultaneously light any combination of segments to a desired color and intensity, the indicator is also capable of performing special modes including directional indication, a run mode indication, and a gauge mode indication.