Abstract:
Red organic electroluminescent compounds containing bis-condensed DCM derivatives, a method for synthesizing the same and an organic electroluminescent device using the same. The red organic electroluminescent compound having the formula: wherein R1, R1', R2 and R2' are independently hydrogen atom, or C1-C30 alkyl, aryl or hetero ring; R3, R3', R4 and R4' are independently hydrogen atom, C1-C10 alkyl or alkoxy; one or more pairs selected from the group consisting of R1 and R3, R1' and R3', R2 and R4, and R2' and R4' can be connected in forms of -R1-R3-, -R1'-R3'-, -R2-R4-, and -R2'-R4'-; R5, R5', R6 and R6' are independently hydrogen atom, or C1-C30 alkyl, alkoxy or aryl; at least one of R3, R3', R4, R4', R5, R5', R6 and R6' is not hydrogen atom.
Abstract:
Provided are compounds having molecular components capable of transporting/injecting hole and an organic EL device having a self-assembled monolayer comprising the same. The compound has the following formula:wherein Ar is a functional group having hole transporting or injecting capability, R is a C1 to C22 alkyl group, and X is an alkoxy group or halogen.
Abstract:
PURPOSE: Provided are a red organic electroluminescent compound having red light emitting property and excellent luminous efficiency, a method for producing the same, and an electroluminescent device comprising the same. CONSTITUTION: The red organic electroluminescent compound has a structure represented by formula 1(wherein each of R1, R1', R2 and R2' is hydrogen, or alkyl group, aryl group, or hetero ring having C1-C30, each of R3, R3', R4, and R4' is hydrogen, alkyl group or alkoxy group having C1-C10, any one least pair of R1 and R3, R1' and R3', R2 and R4, and R2' and R4' can form -R1-R3-, -R1'-R3', -R2-R4-, and -R2'-R4'-, each of R5, R5', R6 and R6' is hydrogen, or alkyl group, alkoxy group or aryl group having C1-C30, and at least one of R3, R3', R4, R4', R5, R5', R6 and R6' is not hydrogen).
Abstract:
PURPOSE: Provided are a compound having hole transfer/injection ability, which is excellent in adhesive ability, heat-stability, and time-stability, and an organic electroluminescent element having a self-assembled layer containing the compound, which is excellent in electrical properties and optical properties. CONSTITUTION: The compound having the hole transfer/injection ability is represented by the formula: Ar-R-SiX3 and the organic electroluminescent element contains a cathode, a hole transfer/injection layer, an organic luminescent layer, an electron transfer/injection layer, an anode, and the self-assembled layer placed between the cathode and the hole transfer/injection layer and comprising the compound represented by the formula: Ar-R-SiX3. In the formula, Ar is a functional group having the hole transfer/injection ability, wherein R1-R3 are identically or differently hydrogen atom, two aryl groups, or amine group having substituted aryl, or C1-C22 alkyl or alkoxy group, R is C1-C22 alkyl group, and X is alkoxy or halogen.
Abstract:
PURPOSE: Provided is an organic electroluminescent element using 4-(dicyanomethylene)-2-methyl-6-(p-(dimethylamino)styryl)-4H-pyran as a red light emitting material, which is excellent in thermal stability, synthesized simply, and shows high pure red. CONSTITUTION: The organic electroluminescent element contains a cathode, an organic layer containing a compound represented by the formula, and an anode, wherein X is O, S, CH2 or NR, R is low alkyl, R1 and R2 are tertiary amines containing rings or fused rings having 2-(dialkylamino)thienyl rings. And the organic electroluminescent element is produced by a process comprising the steps of: forming the cathode on a substrate, wherein the cathode is indium tin oxide; forming the organic layer containing the compound represented by the formula 6 on the cathode; forming the anode on the organic layer, wherein the anode is Al.
Abstract:
In the organic electroluminescence (EL) device containing a bis-condensed derivative of 4-(dicyanomethylene)-2-methyl-6-(para-(dimethylaminostyryl)-4H-pyran, and the preparation thereof, the inventive organic electroluminescence device has a high luminescent efficiency and color coordinates based on a high purity, and is further simple in a synthesis and is prominent in a thermal stability, thereby providing great merits to a mass production of the organic electroluminescence device.
Abstract:
본 발명의 실시 예에 따른, 무선 전력 전송 방법은, 무선 전력 송신기에서 소정의 값에 따라 송신 주파수를 변조하는 단계; 및 상기 무선 전력 송신기에서 상기 변조된 송신 주파수에 따른 고주파 신호를 적어도 하나의 무선 전력 수신기로 전송하고, 상기 적어도 하나의 무선 전력 수신기에 수신된 고주파 신호의 전력 값에 대응하는 정보에 따라 상기 소정의 값을 다시 결정하는 단계;를 반복한다. 본 발명에 따른 무선 전력 전송 시스템은, 수신된 전력 값에 따라 최적의 송신 주파수를 결정함으로써, 전송 효율을 향상시킨다.
Abstract:
본 발명의 무선 전력 전송장치는, 고주파의 전류가 입력되는 전원 코일, 자기 유도에 의해 상기 고주파의 전류가 유도되고 공진 주파수가 외부의 적어도 하나의 타겟 장치의 공진 주파수일 때 비방사형 전자파를 발생하는 전송 코일, 및 상기 전송 코일의 공진 주파수를 조정하기 위한 공진 주파수 조정장치를 포함한다. 본 발명에 따른 무선 전력 전송장치는 공진 주파수가 동일할 때 전력이 전송되도록 구현됨으로써, 와전류에 의한 과열이 발생하지 않고 또한 디자인도 쉽게 변경할 수 있게 된다. 공진 주파수, 무선, 전력 전송