Abstract: Disclosed herein are a time division sampling digital to analog converter for a flat panel display, a method of implementing the digital to analog converter, and a data driver circuit using the digital to analog converter.

Abstract: Disclosed herein is a driving method and circuit for the automatic voltage output of an active matrix organic light emitting device, which is capable of resolving the non-uniformity of brightness between pixels.

Abstract: Disclosed herein is a divide-add circuit and a high-resolution. Digital-to-Analog. Converter (DAC) using the same. The DAC includes a plurality of DAC units and one or more divide-add circuit units. The plurality of DAC units performs Digital-Analog (DA) conversion on two or more segmented codes, into which an input digital code is segmented. The one or more divide-add circuit units is configured to be each composed only of capacitors and switches and to generate a final DA conversion output for the entire input digital code based on the voltages of the DAC units. Accordingly, a high resolution of more than ten bits can be implemented.

Abstract: Disclosed herein are a pixel circuit and driving method for active matrix Organic Light-emitting Diodes (OLEDs), and a display using the same. The pixel circuit includes a Voltage Control Current Source (VCCS), a high gain amplifier, a storage capacitor, and first and second switches. The VCCS is configured to drive OLEDs. The high gain amplifier is configured such that the control input signal of the VCCS causes the VCCS to be placed in an ON or OFF state. The storage capacitor is located between the input terminal of the high gain amplifier and a data line so as to assign the ON-time of the VCCS. The first and second switches are configured to be controlled through a scan line so as to store voltage in the storage capacitor and control the light-emitting time of the OLEDs, and are formed the input terminal of the high gain amplifier and the input terminal of the VCCS, respectively.

Abstract: A discharge lamp driving circuit includes an inverter, a ballast capacitor, a discharge lamp, and a lamp current detecting circuit. The inverter converts a DC voltage into an AC voltage with high frequency to output the AC voltage to an output port based on a pulse width modulation control signal. The lamp current detecting circuit outputs a first voltage signal and a second voltage signal according to a voltage across the ballast capacitor to generate a lamp current sensing voltage that is proportional to a lamp current flowing through the discharge lamp. The pulse width modulation control signal has a width varying with amplitude of the lamp current so that the lamp current may be accurately detected.

Abstract: Disclosed is a communication apparatus between distributed objects comprising: a plurality of separate software buses adapted to determine whether or not a communication service of which function and property is provided in a distributed platform; a platform administrator adapted to build and administrate a communication architecture in the distributed platform; a bus manager adapted to manage both a standard of types of the plurality of software buses and a bus object instance in the distributed platform by a strategic plan and an instruction of the platform administrator; a bus trader adapted to provide a trade function through an interaction with the bus manager, and a client object and a server object of an application level; an object trader adapted to allow the client to dynamically find an appropriate server; a repository adapted to provide a function which stores persistently instance information and various types of the plurality of software buses; a bus adapter adapted to provide the client and serv

Abstract: An ion chromatography system analyzes the environment in semiconductor equipment for foreign materials. The system includes an impinger section for preparing a sample of the atmosphere, and an ion chromatography section. The impinger section includes an absorbent solution vessel, suction and exhaust piping connecting the vessel to the environment, and a pump for transporting atmosphere under pressure. The ion chromatography section includes a guard column, a separation column, and a detector. The suction pipe has an intake port positioned at a target site whose environment is to be analyzed. The impinger section is connected to the ion chromatography section so that the absorbent solution of the vessel directly enters the ion chromatography section. To promote the absorption of the atmosphere into the solution, the absorbent solution vessel may be in the form of an elongate diffusion scrubber having an outer cylindrical vessel and an inner tube made of a selective membrane.