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1835 results about "Electronic paper" patented technology

Electronic paper and e-paper, also sometimes electronic ink or e-ink, are display devices that mimic the appearance of ordinary ink on paper. Unlike conventional backlit flat panel displays that emit light, electronic paper displays reflect light like paper. This may make them more comfortable to read, and provide a wider viewing angle than most light-emitting displays. The contrast ratio in electronic displays available as of 2008 approaches newspaper, and newly (2008) developed displays are slightly better. An ideal e-paper display can be read in direct sunlight without the image appearing to fade.

Electronic paper display device, manufacturing method and driving method thereof

An electronic paper display device, a manufacturing method and a driving method thereof are disclosed. Micro protrusion members are formed at electrodes or at insulating layers. Consequently, the electrophoretic particles are prevented from being securely attached to an upper or the lower structure, and therefore, the quality of pictures is improved, and the contrast ratio of the pictures is increased. The relative sizes and the injection amounts of two kinds of electrophoretic particles are changed such that the relative sizes and the injection amounts of the electrophoretic particles are different from each other. Consequently, the driving voltage is lowered by excessively electrifying the electrophoretic particles of one kind. Protrusions are formed at the corresponding electrode such that a relatively large electric field is distributed around the electrode at which electrophoretic particles are located in the initial stage of voltage application. Consequently, the electrophoretic particles are easily separated from the electrode and moved even at low driving voltage. As such, the voltage level of the driving voltage pulse is lowered. Consequently, it is possible to further increase the response speed of the driving devices and to lower the internal voltage of the devices, thereby reducing the costs related to the driving devices.
Owner:LG ELECTRONICS INC

System of Wireless Electronic Registration Plates

The system of wireless electronic registration plates (3) which is comprehended by the existance of the central wireless module (29) placed within the motor vehicle and connected on to an electric energy source, and the wireless electronic registration plates (30, 31), that are placed at the front and the rear sides of a motor vehicle, containing built-in satellite wireless module (11) is functioning on a principle of wireless micro network where the data transfer from a computer or other mobile device for data input (27, 28) is made through the central wireless module to the satellite wireless modules embedded into the registration plates. The wireless electronic registration plates have its own source of electric energy from the solar cells (6) placed in the lower part of the solar housing (22), which are connected to a thin, film battery (8) implanted in to the solar housing of the registration plates. The registration data is displayed through the active display (1) that is embedded in the solar housing. The active display is made of two flexible parts, the front plane laminate i.e. electronic paper (13) which consist of the layer of electronic ink (17) and the plastic film on the surface (15) containing transparent conducting electrodes (16), and the back plane laminate (14) containing the electronic complex (9) and the control module (10) enabling regulation and control of the displayed information. In the electronic complex there is a wireless (Bluetooth) module (11) for wireless communication and data transfer. The wireless electronic registration plates are laminated with highly resistant and protective plastic (26) and on the back side of the registration plates there is an acrylic, double sided, epoxy gluing tape (25) that enables for direct affixing of the registration plates on to a vehicle body, bumpers or the registration plate holders.
Owner:TEHNOLOSKI CENTAR D O O
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