摘要:
A piezo-electric type page width inkjet printhead includes an intermediate substrate that includes a pressure chamber to be filled with ink to be ejected, a manifold connected to an ink entrance hole to store ink that flows in through the ink entrance hole, a restrictor to connect the manifold to one end of the pressure chamber, and a damper formed through the intermediate substrate corresponding to the other end of the pressure chamber, a lower substrate including a nozzle formed through a portion of the lower substrate, which corresponds to the damper, to eject the ink, an upper substrate formed on the intermediate substrate to seal an upper side of the pressure chamber, and a piezoelectric actuator formed on the upper substrate to generate a driving power to the pressure chamber to eject the ink through the nozzle, wherein the intermediate substrate comprises a both-sided copper clad laminate plate comprising an upper copper film and a lower copper film that are respectively formed on top and bottom surfaces of the laminate plate.
摘要:
An optical shutter includes a cell having a transparent panel and a hydrophobic transparent insulation panel which are arranged to face each other, a transparent electrode formed on an outer surface of the hydrophobic transparent insulation panel, and an opaque droplet contained in the cell and contacting an inner surface of the hydrophobic transparent insulation panel, wherein the amount of light transmitted is adjusted by changing a contact angle of the opaque droplet with respect to the hydrophobic transparent insulation panel. The opaque droplet may be hydrophobic or hydrophilic. The contact angle of the opaque droplet may be changed by applying an electric field between the transparent electrode and the opaque droplet.
摘要:
A method of manufacturing a color filter forming a black matrix on a substrate, the black matrix defining a plurality of pixels, forming liquid ink layers within the pixels and drying the liquid ink layers, penetrating solvent vapor into surfaces of the dried liquid ink layers to form ink layers have mobile surfaces, and drying the ink layers having the mobile surfaces.
摘要:
An image forming apparatus includes an electrostatic latent image forming medium, a charge unit charging the surface of the electrostatic latent image forming medium with a predetermined potential, a toner supply unit (TSU) supplying toner to an electrostatic latent image formed on the surface of the electrostatic latent image forming medium to develop the electrostatic latent image into a toner image, and a transfer unit transferring the toner image to a print medium, the electrostatic latent image forming medium including a transparent frame member, a light source inside the frame member, an optical shutter array including a plurality of optical shutters, and a photoconductive layer on which the electrostatic latent image is formed using light transmitted through the optical shutter array. A diffuser may surround the light source to diffuse light to maintain the intensity of light reaching the optical shutters at a uniform level.
摘要:
An apparatus and method for detecting ionic materials includes a sensing electrode which contacts a liquid sample and detects a sensing voltage corresponding to a surface potential which is changed by a concentration of ionic materials in the liquid sample, a first switching transistor having a first terminal connected to the sensing electrode and a second terminal connected to a first node, a second switching transistor having a first terminal connected to a reset voltage and a second terminal connected to the first node, and a sensing transistor having a gate connected to the first node.
摘要:
An inkjet printhead having a cantilever actuator, the inkjet printhead including a plurality of ink chambers containing ink to be ejected; a manifold containing ink to be supplied to the plurality of ink chambers; a plurality of restrictors supplying ink to the plurality of ink chambers from the manifold; a plurality of nozzles ejecting ink from the plurality of ink chambers; and a plurality of cantilever actuators each installed in each of the plurality of ink chambers and having one fixed end and the other deflectable end, such that pressure for ejection of ink is applied due to the deflection of the other end of the cantilever actuator to the ink inside the ink chamber. The cantilever actuator may be made of a bimorph element, eject ink through the nozzle from the ink chamber, and also prevent backflow of ink from the ink chamber to the restrictor by virtue of the deflection of the other end thereof. Since the cantilever actuator can have a greater displacement and can prevent backflow of ink, the size of the ink chamber needed to eject ink droplets of uniform volume can be reduced, and thus the number of channels per inch (CPI) of the inkjet printhead can be increased.
摘要:
A selective surface treatment method using a block copolymer, a black matrix and a method of manufacturing the same, and a nozzle plate and a method of manufacturing the same are provided. According to the method of manufacturing a nozzle plate, a block copolymer layer including an ink-phobic polymer block and an ink-philic polymer block may be formed on a stamp, a substrate having nozzles formed therein and an ink-philic coating film formed on an outer surface of the substrate and inner walls of the nozzles may be prepared, and the block copolymer layer formed on the stamp may be transferred onto an upper surface of the ink-philic coating film formed on the outer surface of the substrate.
摘要:
A micro-lens built-in vertical cavity surface emitting laser (VCSEL). The micro-lens built-in VSEL includes a VCSEL portion emitting a laser beam in a direction in which semiconductor material layers are stacked; a micro-lens formed of a material capable of transmitting the laser beam emitted from the VCSEL portion; and an adjusting portion located between the VCSEL portion and the micro-lens adjusting a distance between the micro-lens and the VCSEL portion. When constructing an optical system with the VCSEL including the VCSEL portion, the adjusting portion, and the micro-lens, there is no need for a separate condensing lens and focusing position adjusting element. In addition, optical alignment structure is simple with increased freedom in arranging elements, and the number of parts required is sharply reduced.
摘要:
An ink composition for an ink jet printer. The ink composition contains an oligomeric dispersant, a pigment and a solvent. The oligomeric dispersant simultaneously has a hydrophilic group capable of interacting with water soluble solvent and an anchoring group capable of interacting with the pigment. The ink composition has good printing properties, water fastness, light fastness and storage stability.
摘要:
A selective surface treatment method using a block copolymer, a black matrix and a method of manufacturing the same, and a nozzle plate and a method of manufacturing the same are provided. According to the selective surface treatment method, a block copolymer layer including a hydrophilic polymer block and a hydrophobic polymer block is formed on a predetermined surface of a substrate.