Abstract: Discussed is an organic light emitting device in which a light emitting layer includes a host and different kinds of dopants, the fluorescent dopant is formed of a material having energy level properties facilitating thermally activated delayed fluorescence (TADF), and thus energy is concentratedly transferred to the fluorescent dopant so as to increase luminous efficacy of a single color.

Abstract: A lamp for a vehicle includes a lamp unit including a plurality of light emitting areas arranged in a direction; a mode determination unit configured to determine a selected light emitting mode among a plurality of light emitting modes of the lamp unit; and a control unit configured to cause at least one of the plurality of light emitting areas to generate light having a first color or a second color based on the determined light emitting mode. In particular, the plurality of light emitting modes comprises: a first light emitting mode in which the light of the first color is generated from the plurality of light emitting areas; and a second light emitting mode in which the light generated from each of the plurality of light emitting areas is changed from the first color to the second color sequentially.

Abstract: A lamp for a vehicle includes a lamp unit including a plurality of light emitting areas arranged in a direction; a mode determination unit configured to determine a selected light emitting mode among a plurality of light emitting modes of the lamp unit; and a control unit configured to cause at least one of the plurality of light emitting areas to generate light having a first color or a second color based on the determined light emitting mode. In particular, the plurality of light emitting modes comprises: a first light emitting mode in which the light of the first color is generated from the plurality of light emitting areas; and a second light emitting mode in which the light generated from each of the plurality of light emitting areas is changed from the first color to the second color sequentially.

Abstract: Disclosed herein is a radio frequency (RF) repeater comprising an analog signal processing unit and a digital signal processing unit, wherein the analog signal processing unit includes a filtering unit; an amplification unit on receiving side; a frequency conversion unit on receiving side; a frequency conversion unit on transmitting side; and an amplification unit on transmitting side, and the digital signal processing unit includes a receiving signal detection unit; the automatic gain control unit; a feedback signal detection unit; a feedback signal combining unit; a feedback signal elimination unit; an automatic delay control unit; and the control unit. According to the RF repeater and repeating method, installation cost is reduced, limitations in output magnitude and installation are overcome, and ensuring high output power characteristics.

Abstract: Disclosed herein is a radio frequency (RF) repeater comprising an analog signal processing unit and a digital signal processing unit, wherein the analog signal processing unit includes a filtering unit; an amplification unit on receiving side; a frequency conversion unit on receiving side; a frequency conversion unit on transmitting side; and an amplification unit on transmitting side, and the digital signal processing unit includes a receiving signal detection unit; the automatic gain control unit; a feedback signal detection unit; a feedback signal combining unit; a feedback signal elimination unit; an automatic delay control unit; and the control unit. According to the RF repeater and repeating method, installation cost is reduced, limitations in output magnitude and installation are overcome, and ensuring high output power characteristics.