摘要:
A thin film transistor substrate includes an insulating substrate, a gate electrode formed on the insulating substrate, a first gate insulating film formed on the gate electrode and having an opening for exposing at least part of the gate electrode, a second gate insulating film covering the gate electrode exposed by the opening and having a larger dielectric constant than the first gate insulating film, a source electrode and a drain electrode disposed apart from each other in a central area of the second gate insulating film and defining a channel region there between, and an organic semiconductor layer formed in the channel region. A method for forming the TFT substrate is also provided. Thus, the present invention provides a TFT substrate in which a characteristic of a TFT is improved.
摘要:
A settop box is provided. The settop box includes a security shell interface unit which provides secured access by authenticating a terminal when the terminal accesses the settop box through a security shell terminal; a storage unit which stores diagnostic information of the settop box; and a diagnostic information processing unit which provides the diagnostic information stored in the storage unit to the terminal side when a diagnostic information request is received from the terminal.
摘要:
An image forming apparatus includes a main body in which a cassette unit to accommodate a plurality of sheets of paper, a toner cartridge unit to contain toner, an imaging unit to flow into the toner contained in the toner cartridge unit, a transfer unit which transfers an image formed by the imaging unit onto the paper, and a waste toner collection unit to collect waste toner discharged from the imaging unit and the transfer unit, and a control panel unit to receive user commands, wherein at least four of the cassette unit, the toner cartridge unit, the imaging unit, the transfer unit, the waste toner collection unit, and the control panel unit are disposed so as to be accessed by a user in the same direction.
摘要:
An image forming apparatus including cyan (C), magenta (M), yellow (Y), and black (K) developing units using a C developer, a M developer, a Y developer, and a K developer, respectively; at least one auxiliary developing unit using a developer other than the C, M, Y, and K developers; a plurality of photosensitive media formed in the C, M, Y, and K developing units and the auxiliary developing unit, respectively; a plurality of cleaning members formed in the C, M, Y, and K developing units and the auxiliary developing unit, respectively, so as to clean surfaces of the plurality of photosensitive media; and waste developer storage units formed in the C, M, Y, and K developing units and the auxiliary developing unit, respectively, so as to collect waste developer cleaned by the plurality of cleaning members. The developer storage unit and waste developer storage unit of at least one of the C, M, Y, and K developing units, in which there is a large amount of developer consumed and a large amount of waste developer generated, are larger than the developer storage unit and waste developer storage unit of the auxiliary developing unit.
摘要:
An electrophotographic image forming apparatus that includes a photosensitive body, an exposing unit to form an electrostatic latent image on the photosensitive body charged to a uniform electric potential, a first developing unit to develop the electrostatic latent image on the photosensitive body by supplying a transparent toner thereto, a transparent toner container in which the transparent toner to be supplied to the first developing unit is accommodated, and a second developing unit to develop the electrostatic latent image on the photosensitive body by supplying color toners thereto and having a toner-accommodating unit in which the color toners are accommodated.
摘要:
An image forming apparatus including a case, a printing medium feeding unit disposed in the case to feed printing media, an image forming unit disposed in the case to form images on a printing medium fed from the printing medium feeding unit using developer and to include at least one portion being stained when the images are formed, and a control portion to control the image forming unit to form the images in a plurality of print modes. The control portion sends a cleaning command to clean the at least one stained portion when the amount of the developer used by the image forming unit reaches a reference amount of the developer or when the number of the printing media supplied by the printing medium feeding unit reaches a reference value of the number of the printing media.
摘要:
An electrophotographic image forming apparatus may include a developing unit installed above a photosensitive drum, a pickup roller installed above a photosensitive drum to draw a sheet of paper from a paper feed cassette, and a paper transportation path extended below from the pickup roller. An exposure unit and the paper transportation path are installed in rear and front sides of a housing, respectively, to interpose the developing unit therebetween. The developing unit includes a developing roller and a toner container extended above from a front end of a bottom of the housing, the toner container having a height longer than a width.
摘要:
A cartridge for use in an image forming apparatus comprises a charge roller to which a predetermined voltage is applied; a photosensitive drum charged by the charge roller by rotating in contact with the charge roller; an electronic element for wireless communication which is positioned at a predetermined distance from a contact line between the charge roller and the photosensitive drum; and a shielding member made of a metal which is interposed between the contact line and the electronic element to form a shielding area for shielding electromagnetic waves generated from the contact line, the electronic element being positioned within the shielding area except for boundary portions of the shielding area. As a result, the cartridge is able to efficiently shield an electronic element from electromagnetic waves generated between a photosensitive drum and a charge roller.