摘要:
There is provided an inkjet print head including: a pressure chamber storing ink in order to eject the ink to a nozzle; a piezoelectric actuator receiving part being recessed in order to correspond to the pressure chamber in a direction of the pressure chamber; and a piezoelectric actuator received in the piezoelectric actuator receiving part, in which viscous liquid having piezoelectric properties is filled and hardened, and supplying the pressure chamber with a driving force for ejection of the ink.
摘要:
There is provided an inkjet head including: a flow path plate having a plurality of ink chambers; a nozzle plate having a plurality of nozzles connected to the respective ink chambers in order to eject ink in the ink chambers to the outside; a piezoelectric actuator provided above the ink chambers and controlling pressure of the ink chambers; and a parylene protective film provided in order to prevent oxidization of the piezoelectric actuator.
摘要:
There is provided an inkjet head. An inkjet head according to an aspect of the invention may include: a body having a nozzle in an outer surface thereof; a reservoir provided within the body and containing ink being externally injected; an ink chamber receiving the ink from the reservoir through a restrictor and ejecting the ink to an outside through the nozzle; and a reservoir actuator mounted on the body at a position corresponding to the reservoir and transmitting vibrations to the reservoir.
摘要:
A device for polling a piezoelectric element includes: a polling chamber in which a plurality of piezoelectric elements are disposed; a power supply unit providing voltage to poll the piezoelectric elements; a capacitance measurement unit connected with the piezoelectric elements to measure the capacitance of the piezoelectric elements; and a switching system connected with the power supply unit and the piezoelectric elements within the polling chamber, and selectively providing the voltage of the power supply unit to the piezoelectric elements.
摘要:
There is provided an inkjet print head including an ink head and a chipping prevention portion. The ink head includes a nozzle for ejecting ink to the outside by a driving force of a piezoelectric actuator mounted on a surface of the ink head. The chipping prevention portion includes a cutting portion disposed at a side of the ink head and being cut so as to have a height lower than that of the nozzle.
摘要:
Disclosed herein is a touch panel, including: a base substrate divided into an active area, a bezel area surrounding the active area, and a connection area provided outside the bezel area; sensing electrodes formed in the active area; and electrode wirings connected to the sensing electrodes and extended to the connecting area. Here, a predetermined portion of the base substrate is cut and the connection area is folded by using the predetermined portion as a boundary line such that the connection area is protruded outwardly from the base substrate. According to the present invention, the connection area is provided in the base substrate in a single body, thereby allowing omission of separate flexible printed cables, and thus, an attaching process of the flexible printed cable can also be omitted.
摘要:
The present invention relates to a terahertz wave generator and a method of generating high-power terahertz waves using the terahertz wave generator. The terahertz wave generator includes a hollow spherical body, and a focusing lens installed in a cutout portion of the spherical body or an opening formed in the cutout portion, wherein an inner surface of the spherical body is coated with metal. In the method, frequencies having different levels are incident through the focusing lens or the opening to generate a plurality of air plasmas, and the air plasmas cause continuous focusing the metal-coated inner surface and hollow space of the spherical body, thus generating high-power terahertz waves. According to the present invention, a plurality of air plasmas is continuously generated, thus solving the problem in which the light intensity of terahertz waves generated using one air plasma is low.
摘要:
There is provided an inkjet head including: a body portion ejecting ink therein by a driving of an actuator; and a rigidity reinforcing portion coupled to an outer surface of the body portion and reducing deformation of the body portion during the ejecting of the ink.
摘要:
A suspension system for a vehicle may include a torsion beam disposed along width direction of the vehicle and including an attaching portion formed to an end portion thereof, a trailing arm disposed to the attaching portion of the torsion beam and aligned along length direction of the vehicle, wherein one end portion of the trailing arm is coupled to a wheel and the other end portion of the trailing arm is connected to a vehicle body, and a stiffener connecting the attaching portion of the torsion beam and the trailing arm disposed between the stiffener and the attaching portion of the torsion beam.
摘要:
A personal-ordered multimedia data search service method and apparatuses thereof are provided. The apparatus includes: a server which extracts feature information and meta data of entire screen or partial region of each scene-image of multimedia to generate image index information, and then obtains and provides search result images and meta data having feature information similar to feature information of image query information by searching the image index information, when image query information is received; and a set-top box which plays multimedia, wherein when a user issues a request for searching an arbitrary for the playing multimedia, the set-top box extracts feature information of the entire or partial region of the image to generate the image query information and transmits the image query information requesting for searching the image by using the extracted feature information to the server, and after that, when the search result images and meta data are provided from the server, browses the search result images and meta data on a display apparatus. Accordingly, it is possible to maximize user's satisfaction in searching for multimedia data.