Electronics and Telecommunications Research Institute

Intellectual Discovery Co., Ltd.

Lee Mi Do

Tae Hyoung Zyung

Do Hoon Hwang

Hye Yong Chu

Kyu Ha Baek

Kang Hoon Choi

Jeong Ik Lee

Yong Suk Yang

Ji Man Park

Kun Sik Park

Sang Don Jung

Dong Pyo Kim

Hyang Mok Lee

Chi Sun Hwang

Joo Yeon Kim

Sang Hee Park

Ji Young Oh

Zin Sig Kim

Sung Mook Chung

Ye Sul Jeong

Gi Heon Kim

Mi Kyung Kim

Taehyoung Zyung

Kyu-Ha Baek

Jin-Yeong Kang

Dong-Pyo Kim

Kunsik Park

Jong Chang Woo

Yong Hyun Ham

Tae Hyung Zyung

An RFID tag includes: an antenna receiving an RF signal from a reader; an AFE (analog front end) generating voltage using the RF signal; and one or more switches interposed between the antenna and the AFE and controlling the connection between the antenna and the AFE through the switch operation.

RFID tag

Disclosed are a printing plate and a mirror thereof, the printing plate including: printing portions for transferring an immersed solution, the printing portions being formed flat and arranged at regular intervals on one side of an upper part of the printing plate; and non-printing portions corresponding to a remaining area other than the printing portions, the non-printing portions being formed with at least two concavities and convexities respectively and arranged at regular intervals on the other side of the upper part of the printing plate.

First printing plate and second printing plate

An organic light emitting diode (OLED) and a method for manufacturing the same are provided. In the OLED, patterned metal electrodes are positioned on one or more of upper and lower portions of a light emission layer to allow light generated from the light emission layer to emit to an area between the patterned metal electrodes.

Organic light emitting diode and manufacturing method thereof

A via forming method that includes forming via-holes in a substrate is provided. The method includes putting the substrate, having the via-holes, in a first solution to fill the via-holes with the first solution. Metal particles are sunk into the via-holes by supplying a second solution containing the metal particles to the first solution. A first curing process of heat-treating the substrate is performed so as to form vias in the via-holes. A multi-chip package that includes the substrate having the vias is also provided.

Via forming method and method of manufacturing multi-chip package using the same

An organic light emitting diode (OLED) device is provided. The OLED device includes: a substrate; an anode formed on the substrate; a first organic thin layer formed on the anode; an organic emission layer formed on the first organic thin layer; a second organic thin layer formed on the organic emission layer; and a cathode formed on the second organic thin layer, wherein the first and second organic thin layers are formed in a single layer or a multi-layer, and at least a part of the first or second organic thin layer is doped with or formed of an insulator. The OLED device provides excellent durability, long life-time, and increased luminous efficiency by balanced charge injection caused by doping or stacking the insulator into or on the organic thin layer.

Organic light emitting diode device

Provided is an apparatus for measuring a picture and a lifetime of a display panel including: a chamber having at least one display panel for measurement disposed therein, and for uniformly maintaining temperature and humidity conditions of an inner portion; at least one camera installed in the chamber to obtain image signals of the display panel; a bias supply and measurement part for providing pulse bias voltage and current required to measure depending on control signals, and measuring the voltage and current to convert into digital data when the display panel is driven; a converter for converting the image signals obtained through the camera into digital data; and a control and data processing part for generating parameters by receiving the digital data from the bias supply and measurement part and the converter, and analyzing a lifetime of the display panel using the parameters.

Apparatus for measuring picture and lifetime of display panel

The present invention is directed to a thin film material for encapsulation of organic or polymeric light-emitting electric device having light-emitting layer between cathode and anode, for elongation of lifetime of said device and for providing said device with flexibility, more specifically, to a thin film material for encapsulation of organic or polymeric light-emitting electric device comprising polymer having, as repeating unit of backbone, homo-, 2-component co-, ter-, or tetra-polymer of one to four pentaerythritol acrylate monomer, or physically mixed polymer blend of said polymer and polymers other than poly(pentaerythrithol acrylate). Moreover, the present invention is directed to a method for encapsulation of organic or polymeric light-emitting device using said thin film material consisting of wet and dry process. The light-emitting device encapsulated according to the present invention can be bended and can be used in the manufacturing of large surface area display.

Thin film material using pentaerythritol acrylate for encapsulation of organic or polymeric light emitting device, and encapsulation method for LED using the same

A light-emitting polymer and its preparation method, the polymer being excellent in electron injection and transport ability as well as hole injection and transport ability in an EL device, the EL device manufactured from the polymer being also emittable in the blue emission region, in which the EL device from an inorganic material is not mostly emittable. The light-emitting polymer of the invention is an alternated copolymer having repeated units (arylenevinylene units) excellent in hole injection and transport ability and repeated units (fluorinated tetraphenyl units) excellent in electron injection and transport ability with alternated order, as shown in formula (II). An EL device manufactured from the light-emitting polymer, a fluorinated tetraphenyl derivative of formula (I), which is used as a monomer to prepare the light-emitting polymer, and their preparation methods.

Blue light-emitting polymer prepared using a fluorinated tetraphenyl monomer and an EL device manufactured using the polymer

Blue light-emitting polymer prepared using a florinated tetraphenyl monomer and an EL device manufactured using the polymer

The present invention relates to an electroluminescent device, which is characterized in that it uses polymer made of ionomer containing metal ions as a charge transport layer. The ionomer contains an ionized metallic salt and the polymer forms a physical cross-linking around the metal. Thus, it has not only a good mechanical property but also a superior thermal stability. Also it shows an ion conductivity due to movement of ion under electric field, and the conductivity can be controlled by varying the concentration of the substituted ion. The ionomer layer can be easily obtained by spin coating method. In addition, the light-emittive quantum efficiency can be greatly increased by inserting the ionomer layer between the electrode and the light-emitting layer to form a stabilized interface. On the other hand, it can be applied to manufacturing of the flexible electroluminescent device because the ionomer is also a polymer.

Structure of polymeric/organic electroluminescent device using ionomer as charge transport layer and method of making the same

There is disclosed a synthetic method of mixing a soluble poly(1,4-phenylenvinylene) (PPV) derivative in which two silyl groups are substituted, and an electroluminescent device using the same. In the poly[2,5-bis(dimethyloctylsilyl)-1,4-phenylenvinylene] (BDMOS-PPV) according to the present invention, the final polymer is easily dissolved in common organic solvents and shows a measured absolute PL quantum efficiency of 60% much higher than that of the conventional PPV having 25%, thus making it possible to be applied as material of an electroluminescent device. Also, it provides an outstanding advantage that it can be applied to a flexible light-emitting device.

Synthetic method of soluble PPV derivatives having two silyl groups and

A method for manufacturing an organic EL display including an organic EL elements and an organic field effect transistors being integrated on a same substrate is disclosed. A semitransparent electrode layer of the organic EL element and a gate electrode of the organic transistor are formed on a same transparent plastic substrate. An organic gate insulating layer is deposited on the gate electrode and an organic semiconductor layer is formed on the organic gate insulating layer. A source and drain electrodes is formed on the organic semiconductor layer. An organic EL layer is formed on the semitransparent electrode layer and a part of the drain electrode. The organic semiconductor layer can be made of a charge transfer complex or a thiophene derivative polymer. The resultant EL device is capable of mechanically bent, and then is readily adaptable for use in flexible displays.

Fabrication method of an organic electroluminescent devices

There is disclosed a syntheitc method of mixing a soluble poly(1,4-phenylenvinylene)(PPV) derivative in which two silyl groups are substituted, and an electroluminescent device using the same. In the poly�2,5-bis(dimethyloctylsilyl)-1,4-phenylenvinylene! (BDMOS-PPV) according to the present invention, the final polymer is easily dissolved in common organic solvents and shows a measured absolute PL quantum efficiency of 60% much higher than that of the conventional PPV having 25%, thus making it possible to be applied as material of an electroluminnescent device. Also, it provides an outstanding advantage that it can be applied to a flexible light-emitting device.

Growing community of inventors

Daejeon, South Korea

Lee Mi Do