Samsung Electronics Co., Ltd.

Jeong-Seon Kim

Jae-ho Moon

Myung-song Jung

Seo-hyun Cho

Young-Su Lee

Moo-Youl Kim

O-hyun Baek

Jae-cheol Lee

Sa-Yoon Kang

Dae-soon Lim

In-Cheol Jeon

Dae-Woo Son

Sik-sun Choi

Kyung-ju Lee

Jong-suk Seo

Valeri Toherniak

Jae-cheal Lee

Young-hun An

Yang-sung Kim

Hyun-Cheol 106-701 Jugong Green Ville Apt Lee

Valery Krasnosloboditsev

Dong-Iyoul Shin

Byoung-Gyou Choi

A flat panel audio output apparatus including a plurality of flat panels; and one or more vibrators respectively provided to each of the flat panels to vibrate the flat panels to make a sound; wherein the one or more vibrators of each one of the respective flat panels receives audio signals of a different channel and/or a different frequency band than those received by the one or more vibrators of at least one of the remaining flat panels.

Flat panel audio output apparatus and video/audio output apparatus

A flexible printed circuit board connected to a printer head having at least one heater discharging ink, the flexible printed circuit board including: at least one voltage supplying terminal selectively supplying an operating voltage to the at least one heater in response to receiving a printing command signal from a printer; at least one first cable connected at each end to the at least one voltage supplying terminal and at least one first bonding pad, respectively, transferring the operating voltage to the at least one heater; at least one grounded terminal; and at least one second cable connected at each end to the at least one grounded terminal and at least one second bonding pad, respectively, in which the at least one second cable is divided into at least two portions at a predetermined position and a first portion of the at least two divided portions is provided along one side of the at least one first cable, and a second portion of the at least two divided portions is provided along the other side of the first cable.

Flexible printed circuit board

A bonding apparatus and method thereof to bond the bonding portions of an FPC cable to pads of a print head die in order to electrically connect the print head die of an ink jet print head assembly include a stage and a bonding tool. The print head die includes resistive heaters, signal lines connected to the resistive heaters, and electrical pads to connect the signal lines to an outside of the print head die to the FPC cable having conductors having bonding portions facing the pads. The print head die is supported on the stage with the pads facing upward. The bonding tool includes a tip that press bonding portions of the FPC cable against corresponding pads of the print head die placed on the stage, and heats the bonding portions in contact with the pads to bond the bonding portion to the pads. The bonding tool includes a protrusion positioned to align with a position beyond the boundary of the print head die, and that extends lower than the tip, such that, during the bonding operation, the protrusion bends the FPC cable downward. In addition, during the bonding operation, the upper protective film of the FPC cable around the bonding portions are left intact to provide protective layer over the resulting bond, and thus results in less amount of encapsulation over the bond.

Method and apparatus for bonding a flexible printed circuit cable to an ink jet print head assembly

An ink cartridge for an ink jet printer is provided. The provided ink cartridge has an ink reservoir and a housing for covering the ink reservoir with a negative pressure maintenance unit therebetween, to maintain the inner pressure of the ink reservoir under a negative pressure. Since the negative pressure maintenance unit does not contact ink in the ink reservoir, the negative pressure maintenance unit does not corrode. In addition, the negative pressure maintenance unit is installed between the housing and the ink reservoir while occupying a small space, and thus improving the filling efficiency of ink in the ink reservoir.

Ink cartridge used with an ink jet printer

A bubble-jet type ink-jet printhead is provided. The ink-jet printhead includes: a substrate; a nozzle plate including a plurality of nozzles, which is separated a predetermined space from the substrate; walls for closing the space between the substrate and the nozzle plate and then forming a common chamber between the substrate and the nozzle plate; a plurality of resistive layers, formed on the substrate within the common chamber corresponding to the plurality of nozzles, each resistive layer encircling the central axis passing through the center of each nozzle; a plurality of pairs of wiring layers formed on the substrate, each pair of wiring layers being connecting to each resistive layer and extending to the outside of the common chamber; and a plurality of pads which are disposed at the outside of the common chamber on the substrate and electrically connected to the wiring layers. The printhead is constructed such that the space between the nozzle plate and the substrate forms a common chamber and there is no ink channel having a complicated structure, thereby significantly suppressing clogging of nozzles by foreign materials or solidified ink. The printhead is easy to design and manufacture due to its simple structure, thereby significantly reducing the manufacturing cost. In particular, its simple structure permits flexibility in selecting a wide range of alternative designs and thus patterns in which the nozzles are arranged. Furthermore, the printhead can be manufactured by a fabrication process for a typical semiconductor device, thereby facilitating high volume production.

Bubble-jet type ink-jet printhead

An ink cartridge including an ink storage chamber in which ink is stored, a cover to cover the upper portion of the ink storage chamber and a head to eject ink droplets in the ink storage chamber onto a recording medium, wherein the cover includes an inner cover to cover the upper portion of the ink storage chamber and an outer cover that seals the ink storage chamber and the inner cover, and is positioned at a predetermined distance above the inner cover. Also provided are plates to form zigzag air passages by blocking a space between the inner cover and the outer cover. With the ink cartridge according to the present invention, it is possible to satisfactorily suppress the backward flow of ink contained in an ink storage chamber due to overheating of or careless treatment of the ink cartridge. Even if ink flows backward from the ink storage chamber, it is stored in an ink storage space, thus preventing the clogging of an air passage. Further, air entering the ink storage space is filtered, passing through the air passage, and additional components are not required to seal up an opening to which ink is supplied. For this reason, manufacturing costs can be reduced and a manufacturing process can be simplified.

Ink cartridge

An ink cartridge for an ink jet printer includes an ink storing portion for containing ink and a head for ejecting droplets of the ink stored in the ink storing portion. The ink storing portion includes a chamber filed with ink in a liquid state, a negative pressure maintaining apparatus for maintaining the pressure of the inside of the chamber to be negative, and a uniform supply guide apparatus, installed between the chamber and the head, for guiding the ink in the chamber to be uniformly supplied to the head. Thus, since the ink is used by being stored in a liquid state, most of the amount of the stored ink can be used for printing, so that the efficiency in use can be improved much.

Ink cartridge for ink jet printer

A bubble-jet type ink-jet printhead is provided. The printhead has an ink channel having a simple structure, thereby significantly suppressing clogging of nozzles by particles or solidified ink. The printhead is easy to design and manufacture due to its simple structure, thereby significantly reducing the manufacturing cost. In particular, its simple structure permits flexibility in selecting a wide range of alternative designs and thus patterns in which the nozzles are arranged. Furthermore, the printhead can be manufactured by a fabrication process for a typical semiconductor device, thereby facilitating high volume production.

Ink-jet printhead

Growing community of inventors

Gyeonggi-do, South Korea

Jeong-Seon Kim