摘要:
A multi purpose switching circuit is provided. The multi purpose switching circuit is connected with a main unit (60) of an electronic apparatus and includes a multi purpose switch (10). The multi purpose switch is capable of receiving multiple manual operational inputs and accordingly producing multiple command signals. The multiple manual operational inputs are identified by a pushing time and a pushing count in a predetermined time of the multi purpose switch. The multiple command signals initiate the main unit to implement multiple functions such as starting up, shutting down and resetting itself. An electronic device including such a multi purpose switching circuit is also provided.
摘要:
The present invention provides a charging mode control circuit and method. By utilizing such charging mode control circuit and method, a secondary battery fixed in a portable device can be quickly charged when the portable device communicate with an external computer. The method includes the steps of: a) providing a commutator, the commutator comprising an adaptor, a first interface, and a second interface, wherein the first interface is connected to the external computer and the second interface is connected to the portable device; b) filtering a charging voltage from the adaptor and obtaining a ripple voltage from the charging power supply; c) rectifying the ripple voltage; d) comparing the rectified ripple voltage with a reference voltage, thereby producing a voltage waveform signal according to a comparison result; and e) selecting a fast charging mode for the secondary battery according to the voltage waveform signal.
摘要:
A charging mode control circuit (320) includes a detecting circuit (321) and a charging control circuit (322). The detecting circuit detects whether a power/data interface (310) is in a communication state, and accordingly outputting a control signal. The charging control circuit receives the control signal and obtaining power from the power/data interface to charge a secondary battery (330) with a charging mode in accordance with the control signal. The charging mode is a fast charging mode with a charging current larger than a predetermined level, or a slow charging mode with a charging current not larger than the predetermined level. A portable electronic device (30) incorporates the charging mode control circuit is also provided.
摘要:
An electrophoretic display device includes a common electrode, an electrophoresis layer, and pixel electrodes. The electrophoretic layer includes cavities, with each cavity arranged between one of the pixel electrodes and the common electrode, and comprises suspension fluid, first type charged particles, and second type charged particles. The first type charged particles and the second type charged particles are dispersed in the suspension fluid. Three cavities constitute a pixel unit. The first type charged particles and the second type charged particles in each of the three cavities constituting the pixel unit are one of red, green, and blue particles, and one of yellow, magenta, and cyan particles, respectively.
摘要:
A wire control device for wired remotely controlling an electronic device. The wire control device includes a USB connector and a control switch, and the control switch generates control signals. The electronic device includes a USB port and a process unit. When the USB port is connected to the USB connector of the wire control device, the process unit receives the control signals via the USB port and executes corresponding functions.
摘要:
A color electroluminescent (EL) display device comprises a transparent substrate, and a transparent electrode arranged on the transparent substrate. The EL display also includes an electroluminescent layer arranged on the transparent electrode that comprises a plurality of pixel units. Each pixel unit comprises at least two regions comprising electroluminescent materials capable of emitting light of different colors. The EL display further comprises a plurality of opposing electrodes arranged on the electroluminescent layer. Each of the opposing electrodes cooperates with the transparent electrode to apply a voltage to one of the at least two regions of each pixel unit.
摘要:
An electronic book reader includes an E-paper display, a display controller, a SDRAM, and a group of control buttons. The display controller is connected to the E-paper display. The SDRAM is connected to the display controller, and stores a group of display data. The control buttons are electrically connected to the display controller for responding to user input and generating an updating signal to the display controller to open a destination page. The display controller is configured for accessing the SDRAM to obtain the display data of the destination page upon receiving the updating signal, and driving the E-paper display to display the destination page.
摘要:
An electronic paper device is provided. The electronic paper device includes a conductive layer, a number of pixel electrodes, an electrophoretic ink layer, a common electrode layer, a voltage detection unit, and a processing unit. Each pixel electrode corresponds to a coordinate of a coordinate system. The electrophoretic ink layer is electrically connected between the number of pixel electrodes and the common electrode layer. The conductive layer and the common electrode layer have a different voltage when the electronic paper device is powered on. When the user touches the electronic paper device and causes the conductive layers to contact a pixel electrode corresponding to the touch position, the pixel electrode obtains the voltage of the conductive layer and an electric field is form between the pixel electrode and the common electrode layer. This causes the color to change at the position that is corresponding to the touched position.
摘要:
An electrophoretic display device includes pixel electrodes, a transparent electrode, and an electrophoretic ink layer. The electrophoretic ink layer includes a transparent film. Grooves are defined on the transparent film. Each groove is arranged between one of the pixel electrodes and the transparent electrode, and includes suspension fluid, and charged pigment particles dispersed in the suspension fluid. When application of an electric field between one of the pixel electrodes and the transparent electrode causes movement of the charged pigment particles of one of the grooves corresponding to the pixel electrode, and the groove displays a corresponding color.
摘要:
An electrophoretic display device includes pixel electrodes, a transparent electrode, and an electrophoretic ink layer including cavities. Each cavity is arranged between one of the pixel electrodes and the transparent electrode, and each cavity comprises suspension fluid, charged particles, and neutral particles, the charged particles and neutral particles being dispersed in the suspension fluid. The neutral particles are dispersed in the center of the cavities and substantially stationary, and the charged particles are capable of moving through the suspension fluid. Application of an electric field to a pixel electrode and the transparent electrode causes a migration of the charged particles of a cavity connected to the pixel electrode and a corresponding color becomes viewable.