Abstract: A peripheral device for providing a health information message to a host device includes a health data obtainer configured to obtain health data; a message generator configured to determine a type of the health data, a private message identification (ID) corresponding to the type of the health data, and an ID of the peripheral device, and generate the health information message to include the private message ID, the ID of the peripheral device, and the health data; and a message provider configured to transmit the health information message to the host device, the private message ID being configured to be interpreted differently according to the ID of the peripheral device.

Abstract: An electron emission device includes a cathode electrode; a mesh-shaped gate electrode spaced apart from the cathode electrode; a plurality of gate spacers between the cathode electrode and the gate electrode; and a plurality of electron emission sources between the cathode electrode and the gate electrode, and alternating with the plurality of gate spacers.

Abstract: Provided are methods of aging an x-ray generator having carbon nanotube electron emitters. The method of aging an x-ray generator that includes a cathode, a gate electrode, and an anode, includes applying a desired, or alternatively predetermined anode voltage to the anode, and applying a direct current pulse voltage to the gate electrodes to emit electrons from electron emitters. The method further includes maintaining an anode current formed by electrons generated from the electron emitters constant.

Abstract: A field emission device may comprise: an emitter comprising a cathode electrode and an electron emission source supported by the cathode electrode; an insulating spacer around the emitter, the insulating spacer forming an opening that is a path of electrons emitted from the electron emission source; and/or a gate electrode comprising a graphene sheet covering the opening. A method of manufacturing a gate electrode may comprise: forming a graphene thin film on one surface of a conductive film; forming a mask layer having an etching opening on another surface of the conductive film, wherein the etching opening exposes a portion of the conductive film; partially removing the conductive film through the etching opening to partially expose the graphene thin film; and/or removing the mask layer.

Abstract: A mesh electrode adhesion structure includes: a substrate, and an opening defined in the substrate; a mesh electrode on the substrate, and a first combination groove defined in the mesh electrode; and an adhesion layer between the substrate and the mesh electrode. The mesh electrode includes: a mesh region corresponding to the opening defined in the substrate, and an adhesion region in which the first combination groove exposes the adhesion layer.

Abstract: An x-ray generator includes a housing, a cathode block that is arranged in the housing and emits electrons via a field emission scheme, an anode block that is arranged in the housing and generates x-rays in response to the electrons emitted from the cathode block and collide with the anode block, and a heat sink block that contacts the cathode block and dissipates heat generated therein to an outside of the housing.

Abstract: An X-ray imaging system includes an X-ray generator including a plurality of X-ray generation units, where the plurality of X-ray generation units is two-dimensionally arranged, and operates independently of each other; and an X-ray detector spaced apart from the X-ray generator, where the X-ray detector includes a plurality of X-ray detection units corresponding to the plurality of X-ray generation units, where a space is defined between the X-ray generator and the X-ray detector.

Abstract: A power-off discharge circuit comprises a power voltage detection unit that detects whether a first power voltage for driving a source driver circuit is blocked and generates a discharge control signal, and a discharge unit that discharges a load circuit in a display panel based on the discharge control signal.

Abstract: An X-ray photographing apparatus includes: a plurality of X-ray generators which is two-dimensionally arranged and independently generates X-rays; and a plurality of X-ray detectors which is arranged in a one-to-one correspondence with the plurality of X-ray generators and independently detects the X-rays generated by the plurality of X-ray generators.

Abstract: A mesh electrode adhesion structure includes: a substrate, and an opening defined in the substrate; a mesh electrode on the substrate, and a first combination groove defined in the mesh electrode; and an adhesion layer between the substrate and the mesh electrode. The mesh electrode includes: a mesh region corresponding to the opening defined in the substrate, and an adhesion region in which the first combination groove exposes the adhesion layer.

Abstract: A power-off discharge circuit comprises a power voltage detection unit that detects whether a first power voltage for driving a source driver circuit is blocked and generates a discharge control signal, and a discharge unit that discharges a load circuit in a display panel based on the discharge control signal.

Abstract: An X-ray source device includes a substrate, a cathode electrode on the substrate, an emitter on the cathode electrode, an insulation body around the cathode electrode, a gate electrode on the insulation body, a first secondary electron emission layer at a side wall of the gate electrode and emitting secondary electrons upon collision with an electron beam emitted by the emitter, and an anode electrode separated from the gate electrode.

Abstract: An electron emission device includes a cathode electrode; a mesh-shaped gate electrode spaced apart from the cathode electrode; a plurality of gate spacers between the cathode electrode and the gate electrode; and a plurality of electron emission sources between the cathode electrode and the gate electrode, and alternating with the plurality of gate spacers.

Abstract: A power-off discharge circuit comprises a power voltage detection unit that detects whether a first power voltage for driving a source driver circuit is blocked and generates a discharge control signal, and a discharge unit that discharges a load circuit in a display panel based on the discharge control signal.

Abstract: A bias control circuit includes a counter unit, a decoder, a level shifter, and a bias block. The bias control circuit provides plurality bits of first signal indicating information on a plurality of groups based on a number of scanning lines and a number of groups. The decoder decodes the first signal to provide plurality bits of second signal. The level shifter shifts a voltage level of the second signal to provide a bias resistor selection signal. The bias block provides respective bias voltages to the corresponding respective groups by respective resistances being selected in response to the bias resistor selection signal.

Abstract: Disclosed herein are a novel perfluoroalkyl vinyl ether compound, a process for preparing a copolymer by using the perfluoroalkyl vinyl ether compound, and an optical plastic material comprising a copolymer prepared by the process. More specifically, the perfluoroalkyl vinyl ether has a particular molecular structure; the process is performed by copolymerizing the perfluoroalkyl vinyl ether compound with a common fluorinated olefin in the presence of a perfluorinated radical initiator; and, the optical plastic material comprises a copolymer prepared by the process and optionally a dopant. The copolymerization of the perfluoroalkyl vinyl ether with a common fluorinated olefin can provide a copolymer having a high molecular weight. In addition, appropriate control of the composition of the monomers can provide a completely amorphous copolymer.

Abstract: Disclosed herein are a novel perfluoroalkyl vinyl ether compound, a process for preparing a copolymer by using the perfluoroalkyl vinyl ether compound, and an optical plastic material comprising a copolymer prepared by the process. More specifically, the perfluoroalkyl vinyl ether has a particular molecular structure; the process is performed by copolymerizing the perfluoroalkyl vinyl ether compound with a common fluorinated olefin in the presence of a perfluorinated radical initiator; and, the optical plastic material comprises a copolymer prepared by the process and optionally a dopant.

Abstract: A novel perfluoroalkyl vinyl ether compound, a process for preparing a copolymer by using the perfluoroalkyl vinyl ether compound, and an optical plastic material comprising a copolymer prepared by the process are provided. More specifically, the perfluoroalkyl vinyl ether has a particular molecular structure; the process is performed by copolymerizing the perfluoroalkyl vinyl ether compound with a common fluorinated olefin in the presence of a perfluorinated radical initiator; and the optical plastic material comprises a copolymer prepared by the process and optionally a dopant.

Abstract: An antistatic composition, a transfer roller manufactured by using the antistatic composition, and a method of manufacturing the same are provided. The antistatic composition includes about 0.05 to about 5 parts by weight of an antistatic agent including a metal salt compound, about 10 to about 50 parts by weight of a thermoplastic elastomer, and about 100 parts by weight of a base resin. The antistatic agent includes the metal salt compound and an ether compound. The metal salt compound includes an alkali metal salt compound.

Abstract: A plasma display device and a method of driving a plasma display panel (PDP) are provided. The plasma display device includes an upper substrate on which a plurality of first electrodes and a plurality of second electrodes respectively corresponding to the first electrodes are formed; and a lower substrate on which a plurality of third electrodes are formed, wherein the first electrodes are respectively 100 ?m or more distant apart from the second electrodes, and during a reset period, a voltage that gradually increases is applied to the first electrodes, and at the same time, a positive bias voltage is applied to the third electrodes. Therefore, it is possible to reduce the power consumption of a PDP by driving a PDP including a scan electrode and an address electrode that are sufficiently distant apart from each other in such a manner that a positive bias voltage can be applied to an address electrode during a reset period.