Abstract: The present disclosure relates to a plurality of host materials, organic electroluminescent compounds, and organic electroluminescent devices comprising the same. By comprising specific combinations of compounds according to the present disclosure as the plurality of host materials or by comprising a compound according to the present disclosure, it is possible to provide organic electroluminescent devices having improved lifespan characteristics compared to conventional organic electroluminescent devices.

Abstract: The present disclosure relates to a plurality of host materials, an organic electroluminescent compound, and an organic electroluminescent device comprising the same. An organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifespan properties compared to a conventional organic electroluminescent device can be provided by including the specific combination of compounds according to the present disclosure as a plurality of host materials or by including the compound according to the present disclosure.

Abstract: The present disclosure relates to a plurality of host materials comprising a first host material comprising at least one compound represented by formula 1 and a second host material comprising at least one compound represented by formula 2, and an organic electroluminescent device comprising the same. An organic electroluminescent device having significantly improved lifetime properties is provided by comprising a specific combination of compounds according to the present disclosure as host materials.

Abstract: Disclosed is a method of selectively displaying comments posted by users. The method comprises setting, by a first user, a threshold value for use in determining whether to display comments posted by users of an Internet service; and sending, by the first user, a request for displaying a page of the Internet service. The requested page contains a comment or a title of a comment posted by a second user who is assigned a reputation index. The method further comprises displaying, on a screen associated with the first user, the requested page, wherein the comment or the title of the second user is selectively redacted based on comparison of the reputation index of the second user with the threshold value of the first user.

Abstract: Disclosed is a method of selectively displaying comments posted by users. The method comprises setting, by a first user, a threshold value for use in determining whether to display comments posted by users of an Internet service; and sending, by the first user, a request for displaying a page of the Internet service. The requested page contains a comment or a title of a comment posted by a second user who is assigned a reputation index. The method further comprises displaying, on a screen associated with the first user, the requested page, wherein the comment or the title of the second user is selectively redacted based on comparison of the reputation index of the second user with the threshold value of the first user.

Abstract: A method for displaying caller information using image data in a mobile telecommunications system. If a call origination has occurred, a calling user element sets up a voice data channel with a called user element and forms a data path with the called user element to transmit caller image information. Then, the calling user element transmits the caller image information to the called user element over the data path.

Abstract: A method for displaying caller information using image data in a mobile telecommunications system. If a call origination has occurred, a calling user element sets up a voice data channel with a called user element and forms a data path with the called user element to transmit caller image information. Then, the calling user element transmits the caller image information to the called user element over the data path.