摘要:
Provided are a light emitting device and an optical coupling module. The device includes a substrate, a light emitting part provided to the substrate, and a reflecting part provided to a lower surface of the substrate. The light emitting part includes an active pattern disposed on the substrate, an upper mirror provided to an upper portion of the active pattern, and a lower mirror provided to a lower portion of the active pattern. The light emitting part may emit light normal to the substrate, and the reflecting part may reflect the emitted light to a side surface of the substrate.
摘要:
An organic light emitting diode display that includes a display panel and a bezel to receive the display panel, the bezel including a first bezel and a second bezel, each of the first bezel and the second bezel including different materials and including a bottom portion and a skirt portion protruding from edges of the bottom portion.
摘要:
A flip-flop is provided for minimizing an input-output (D-Q) delay. The flip-flop includes a pull-up unit that receives a signal from a first node, is connected between a power voltage source and a second node, and pulls-up a voltage of the second node. A pull-down unit receives the signal from the first node, is connected between a ground voltage source and the second node, and pulls-down the voltage of the second node. A latch unit is connected to the second node and latches and outputs a signal transferred to the second node. The pull-up unit pulls-up the second node in response to one of a clock signal and a pulse signal, and the pull-down unit pulls-down the second node in response to the other one of the clock signal and the pulse signal.
摘要:
The pulse generation circuit generates a first pulse signal and a complementary second pulse signal. The first and second pulse signals are activated simultaneously in a normal mode and activated selectively in response to a test input signal in a test mode. A multiplexing input circuit selects and outputs one of a data input signal and a test input signal as a latch input signal in response to the first pulse signal and the second pulse signal. The latch input signal corresponds to the data input signal in the normal mode and corresponds to the test input signal in the test mode. The latching circuit latches the latch input signal to generate data output signal. The length of data transfer path is reduced, and DtoQ delay can be decreased.
摘要:
A gated clock logic circuit includes a pulse generator and a precharged latch. The pulse generator generates a pulse signal in response to a clock signal, and the precharged latch generates a gated clock signal in response to the clock signal, the pulse signal, and a control signal.
摘要:
A voltage conversion circuit changes an input signal of a first voltage into an output signal of a second voltage. The circuit includes an input terminal receiving an input signal, an output terminal generating an output signal, and first and second level-shifting units connected in parallel between the input and output terminals. The first and second level-shifting units have different transition delay characteristics, enabling rising and falling transition delays to be variable in the same ratio when the first and second voltages are changed.
摘要:
An organic electroluminescent display (OELD) device includes first and second substrates facing each other and having a display region and a non-display region on a periphery of the display region, an organic electroluminescent diode in the display region of the first substrate, a protrusion formed with a first thickness and a first width in the non-display region of the first substrate, a groove formed with a first depth and a second width in the non-display region of the second substrate, wherein the protrusion is inserted into the groove, a seal pattern formed between the protrusion and the groove.
摘要:
Disclosed is a caller ID mobile terminal which allows a user to exactly identify a caller. The user can exactly recognize the caller as voices directly recorded and stored by the user by individual or voices reading nicknames entered in text ring as bell tones, and further the user can be amused by using various versions of voices as bell tones through emoticons or the like.
摘要:
A pulse-based flip-flop that latches a data input signal to convert the data input signal into a data output signal in response to a clock signal. The pulse-based flip-flop comprises a latch that latches the data input signal in response to a first clock pulse signal and a second clock pulse signal and a pulse generator including a NAND gate, a variable delay, and a first inverter, the pulse generator receives the clock signal to generate the first clock pulse signal and the second clock pulse signal. The NAND gate receives the clock signal and an output signal of the variable delay and outputs the second clock pulse signal. The first inverter receives the first clock pulse signal and outputs the second clock pulse signal. The variable delay receives the clock signal and the second clock pulse, and an output signal of the variable delay feeds back to the NAND gate.
摘要:
A level shifter and method thereof. The example level shifter may include a level shifting unit generating a plurality of internal voltages, shifting the voltage levels of a plurality of input signals and outputting an output signal based at least in part on the plurality of internal voltages and a mode control unit controlling the voltage levels of the plurality of internal voltages in response to a mode selection signal. The example method may include generating a plurality of internal voltages based on a plurality of input signals, controlling the voltage levels of the plurality of internal voltages based on a mode selection signal and outputting an output signal based at least in part on the plurality of internal voltages.