摘要:
A driving integrated circuit (IC) is provided. The driving IC includes a reference voltage setup circuit configured to output a reference voltage based on a test voltage and a load current control unit comparing a load voltage output from a load resistor with the reference voltage in response to a load current and maintaining the load current constant based on a result of the comparison.
摘要:
A photo process apparatus including: a loading/unloading unit that loads and unloads a substrate; a coating line that coats photoresist on the substrate; an exposure line that exposes the photoresist coated on the substrate; a development line that develops the exposed substrate; and a transferring line that temporarily stores the substrate coated with the photoresist and loads the substrate coated with the photoresist to the exposure line and temporarily stores the exposed substrate and loads the exposed substrate to the development line.
摘要:
The present invention relates to a system and a method for monitoring and controlling RF signal processing units in a wireless communication network, and, more particularly, system and method for remotely monitoring and controlling the functional status of RF signal processing units of numerous base stations in a wireless communication network by extracting the spectrum feature of high frequency that is processed by the RF signal processing unit and represents the functional status of the RF unit in each base station, and then comparing the extracted spectrum with the predetermined spectrum curve in the remote site.
摘要:
The liquid crystal display device may include a first electrode; a second electrode facing the first electrode and forming a vertical electrical field together with the first electrode; a blue phase liquid crystal layer provided between the first electrode and the second electrode; and a first prism sheet provided to face the second electrode with the first electrode between the second electrode and the first prism sheet. The first prism sheet changes a path of incident light so that the incident light from the outside obliquely enters the blue phase liquid crystal layer with respect to the vertical electrical field.
摘要:
Disclosed herein is a method of designing spokes of a non-pneumatic tire which randomly arranges spokes around a circumference to optimize noise dispersion. The method of designing spokes of a non-pneumatic tire includes placing a plurality of spokes (2) holding and supporting a tread (1) to be radially installed around a circumference of the tire on a circular spoke support (3) under the tread (1) to be in contact with the ground, wherein the spokes (2) are arranged at three angles on the circular spoke support (3) around the circumference of the tire, the three angles being divided into a small angle (a), a medium angle (b) and a large angle (c), and the spokes (2) are arranged at irregular angles under a condition that a ratio (q) of the large angle (c) to the small angle (a) is greater than a ratio (p) of the medium angle (b) to the small angle (a).
摘要:
A process cartridge usable with an image forming apparatus includes a developing member, a photosensitive medium to face the developing member, a pair of supporting plates to rotatably support the developing member and the photosensitive medium; a center moving member rotatably disposed on the supporting plate, the center moving member having a first position in which the photosensitive medium contacts the developing member and a second position in which the photosensitive medium is spaced apart from the developing member; and a separation restraining member formed so that when the center moving member locates at the second position, the separation restraining member restrains the center moving member from moving from the second position.
摘要:
Provided are an LED driving circuit capable of preventing distortion of LED currents and having a high operating speed, and a display device including the LED driving circuit. The LED driving circuit includes a current driving circuit, a dynamic headroom controller and a power supply circuit. The current driving circuit controls current signals flowing through LED strings in response to a first control signal that includes information of an LED current and a current-driving-circuit enabling signal. The dynamic headroom controller generates a dynamic headroom control signal having a voltage level that changes according to a logic state of the current-driving-circuit enabling signal. The power supply circuit generates an LED driving voltage that changes according to the dynamic headroom control signal.
摘要:
A light-emitting-diode driving circuit includes a current driving circuit configured to control current signals flowing through light-emitting-diode strings in response to a first signal that includes information of a light-emitting-diode current, a dynamic headroom controller configured to generate a third control signal that changes according to a change of the current signals flowing through the light-emitting-diode strings based on voltage signals of first terminals of each of the light-emitting-diode strings and a second control signal that includes the information of the light-emitting-diode current, and a power supply circuit configured to generate a light-emitting-diode driving voltage that changes in response to the third control signal, and provide the light-emitting-diode driving voltage to second terminals of each of the light-emitting-diode strings.
摘要:
A process cartridge usable with an image forming apparatus includes a developing member, a photosensitive medium to face the developing member, a pair of supporting plates to rotatably support the developing member and the photosensitive medium; a center moving member rotatably disposed on the supporting plate, the center moving member having a first position in which the photosensitive medium contacts the developing member and a second position in which the photosensitive medium is spaced apart from the developing member; and a separation restraining member formed so that when the center moving member locates at the second position, the separation restraining member restrains the center moving member from moving from the second position.
摘要:
A roller usable with an image forming apparatus includes a shaft, a body formed on an outer surface of the shaft, and a tube disposed on an outer surface of the body. The tube is formed so that opposite side end portions of the tube contact opposite side surfaces of the body. The opposite side end portions of the tube are heated and pressurized so as to be secured on the opposite side surfaces of the body.