Lg Display Co., Ltd.

Samsung Electronics Co., Ltd.

Korea Institute of Machinery & Materials

Shin-Han Kim

Kyung-im Jung

Tae-Sung Kim

Yun-Sang Oh

Byung-Rae Lee

Hong-Seok Choi

Ji-Cheol Shin

Mi-Young Han

Seong-Su Jeon

Tae-Shick Kim

In-Bum Song

Hwa-Kyung Kim

Seon-Keun Yoo

Youn-Seok Kam

Hye-Min Oh

So-Young Jang

Do-Hyung Kim

Dae-Wi Yoon

Jeong-Dae Seo

Chang-Wook Han

Byung-Chul Ahn

Moon-Sang Kwon

Sung-Joon Bae

Joong-Chul Yoon

Young-Wook Kim

Seung-Hee Yoon

Seung-Ryong Joung

Seung-Hyun Kim

Jin-Ho Park

Yoon-Deok Han

Dong-Hyeok Lim

Hai-Doo Kim

Tae-sung Kim

Yoon-Heung Tak

Gwi-Jeong Cho

Tae-Il Kum

Jae-Man Lee

Jae-jin Choi

Ji-Young Kim

Chang-Je Sung

Chi-Yul Song

Tae-Sun Yoo

Chul-B Park

Min-Gi Hong

Kyung-Im Jung

Kyung-Im 310-2402 Jugong 3-Danji Jung

The present disclosure relates to an OLED that includes a first electrode; a second electrode facing the first electrode; and a first emitting material layer including a first host, a second host and a first blue dopant and positioned between the first and second electrodes, wherein the first host is an anthracene derivative, and the second host is a deuterated anthracene derivative.

Organic light emitting diode and organic light emitting device including the same

The present disclosure relates to an organic compound, and an organic light emitting diode and an organic light emitting device including the same, more specifically, relates to an organic compound being represented by following Formula, an organic light emitting diode including the organic compound and an organic light emitting device including the organic light emitting diode. The organic compound is included in an electron transporting layer and/or a p-type charge generation layer of the organic light emitting diode.

Organic compound, and organic light emitting diode and organic light emitting device including the same

The present disclosure relates to an organic light emitting diode including a first electrode; a second electrode facing the first electrode; a first p-type doping layer between the first and second electrodes; a second p-type doping layer between the first p-type doping layer and the second electrode; a third p-type doping layer between the second p-type doping layer and the second electrode; a first emitting material layer between the first and second p-type doping layers; a second emitting material layer between the second and third p-type doping layers; and a third emitting material layer between the third p-type doping layer and the second electrode, wherein an electrical conductivity of the third p-type doping layer is greater than an electrical conductivity of the first p-type doping layer and is equal to or smaller than an electrical conductivity of the second p-type doping layer.

The present disclosure relates to an organic light emitting diode including a first electrode; a second electrode facing the first electrode; a first emitting part positioned between the first and second electrodes and including a first emitting material layer, a hole injection layer between the first electrode and the first emitting material layer and a first hole transporting layer between the hole injection layer and the first emitting material layer, wherein the hole injection layer includes a hole injection material, and the first hole transporting layer includes at least one of a first hole transporting material and a second hole transporting material, and wherein the first hole transporting material and the second hole transporting material are fluorene derivatives having different structures.

A light emitting diode comprises first and second electrodes facing each other; a first charge generation layer between the first and second electrodes; a first emitting stack including a first emitting material layer between the first electrode and the first charge generation layer and a first electron transporting layer between the first emitting material layer and the first charge generation layer; and a second emitting stack including a second emitting material layer between the first charge generation layer and the second electrode and a second electron transporting layer between the second emitting material layer and the second electrode, wherein the first charge generation layer has an electron mobility lower than that of the first electron transporting layer.

Light emitting diode and electroluminescent display device including the same

Disclosed herein is a white organic light emitting device including various emission layers with improved luminous efficiency, an increased color viewing angle, and low power consumption. The white organic light emitting device includes at least two charge generation layers and at least three stacks between a first electrode and a second electrode. The first stack includes an emission layer having a wavelength range of about 440 to about 470 nm, the second stack includes an emission layer having a wavelength range of about 530 to about 570 nm, and the third stack includes an emission layer having a wavelength range of about 590 to about 620 nm and an emission layer having a wavelength range of about 440 to about 470 nm.

White organic light emitting device

Disclosed is an organic light emitting display device with an enhanced light emission efficiency at high current and an enhancement in panel efficiency through prevention of a roll-off phenomenon. The organic light emitting display device includes first and second electrodes formed on a substrate facing each other. A hole injection layer, a hole transport layer, at least first and second light emitting layers, and an electron transport layer are sequentially stacked between the first and second electrodes. The first light emitting layer includes different hosts while being doped with the same dopant in different dosages. The first light emitting layer includes a first host and a second host, and the second light emitting layer includes the first host and a third host different from the second host. The first and second light emitting layers are doped with the same phosphorescent yellow-phosphorescent green dopant in the same dosage.

Organic light emitting display device

A method and apparatus for transmitting rights object information between a device and a portable storage are provided. The method includes transmitting a predetermined request from the device to the portable storage, generating a current permission status format including information of a rights object designated by the request, using the portable storage, and transmitting the current permission status format from the portable storage to the device. According to the method and apparatus, overhead is reduced and information transmission speed is increased when the rights object information is transmitted between the device and the portable storage.

Method and apparatus for transmitting rights object information between device and portable storage

An organic light emitting display device is provided to avoid color change due to a viewing direction. The organic light emitting display includes a light compensation layer having a refractive index different than that of an insulating layer. The organic light emitting display may be disposed at the side to which light emitted from an organic light emitting layer is entered to change the path and phase of light, thereby coinciding cavity peak phases for each wavelength of white light emitted from an organic light emitting unit.

A device for achieving reduced driving voltage and enhanced color stability under high luminance conditions includes an anode and cathode arranged on a substrate to be opposite each other, a charge generation layer between the anode and the cathode, a first stack formed between the anode and the charge generation layer and including a first light emitting layer, and a second stack formed between the charge generation layer and the cathode and including a second light emitting layer in which first and second hosts are doped with phosphorescent dopant, a HOMO level of the first host is greater than that of the second host, and a LUMO level of the first host is greater than an LUMO level of the second host.

An apparatus and a method that transmit and receive a converted format of a digital rights object between a device and a portable storage device. The apparatus for processing a digital rights object includes a transmitting/receiving module for receiving the rights object expressed in a Markup language from a rights issuer, a rights object converting module for converting the rights object into a frame having a format for communicating with a portable storage device, an interface for connecting with the portable storage device, and a control module for providing the frame to the portable storage device through the interface and receiving the converted format of the rights object from the portable storage device through the interface.

Apparatus and method for processing digital rights object

A method and apparatus for copying or moving a rights object having right information regarding digital contents between a device and a portable storage device to copy or move the digital contents there between are provided. According to the method and apparatus, the digital works can be prevented from being recklessly and randomly copied and moved, and therefore, copyright can be protected. In addition, data loss or unauthorized access can be prevented.

Apparatus and method for moving and copying rights objects between device and portable storage device

An apparatus and method for operating many applications between a portable storage device and a digital device are provided. The method includes opening at least two logical channels from the digital device to the portable storage device through a physical channel, transmitting and receiving data between a plurality of applications of the digital device and a plurality of applications of the portable storage device through the opened logical channels, and closing the logical channels after finishing the transmitting and receiving of the data.

Apparatus and method for operating plural applications between portable storage device and digital device

Growing community of inventors

Seoul, South Korea

Shin-Han Kim