摘要:
An active matrix display device of an improved and simplified configuration and a driving method for the same are disclosed. The display device according to the present invention is characterized in that data bus lines and scan bus lines are separately formed on first and second transparent substrates respectively and the drain electrode of each TFT on the second substrate is connected to the scan bus line to be addressed next. This configuration eliminates earth bus lines of the prior art. This arrangement has effects of simplifying a bus line design and obtaining a higher yield and an increased opening rate for each display element. In order to drive the above device, an address pulse having a stepped waveform is used. Each address pulse has Vgon, Vgc, and Vgoff levels, and a width of two horizontal scan time. The first step of address pulse Vgc corresponds to the address time of the adjacent scan bus line to be scanned previously; and the second step Vgon corresponds to the address time for the TFT to be scanned. The present invention discloses a voltage relation for waveforms of the address pulse and data pulse in order to obtain a high quality display.
摘要:
A method for manufacturing a printed wiring board including forming a penetrating hole in a core substrate, forming a first conductor on a first surface of the substrate, forming a second conductor on a second surface of the substrate, and filling a conductive material in the hole such that a through-hole conductor is formed in the hole and the first and second conductors are connected via the through-hole conductor. The forming of the hole includes forming a first opening in the first surface, forming a second opening from the bottom of the first opening toward the second surface such that the second opening has a smaller diameter than the first opening, forming a third opening in the second surface, and forming a fourth opening from the bottom of the third opening toward the first surface such that the fourth opening has a smaller diameter than the third opening.
摘要:
A method for manufacturing a multilayer printed circuit board including providing a core substrate having a penetrating-hole, forming an electroless plated film on a surface of the substrate and an inner wall surface of the penetrating-hole, electrolytically plating the substrate while moving with respect to the surface of the substrate an insulating member in contact with the surface of the substrate such that an electrolytic plated film is formed on the electroless plated film, an opening space inside the penetrating-hole is filled with an electrolytic material, and a through-hole conductor structure is formed in the penetrating-hole, forming an etching resist having an opening pattern on the electrolytic plated film, and removing an exposed pattern of the electrolytic plated film exposed by the opening pattern and a pattern of the electroless plated film under the exposed pattern such that a conductor circuit is formed on the surface of the substrate.
摘要:
There is provided a thermal transfer image-receiving sheet comprising: a substrate sheet; and an image-receiving layer provided on one side of the substrate sheet, the image-receiving layer comprising a copolymer, having an average degree of polymerization of 800 to 2000, of at least vinyl chloride and vinyl acetate as main comonomers.
摘要:
A medical image forming method including the steps of superposing a three-primary-color thermal transfer sheet and an image receiving sheet, the thermal transfer sheet having a base film and three color dye layers of yellow, magenta, and cyan, each of the dye layer being composed of a dye and a binder, the image receiving sheet having a dye accepting layer; heating the rear surface of the thermal transfer sheet with a heating device in an image shape; and driving and controlling the heating device with a control unit so as to form a full color image on the image receiving sheet. The control unit is adapted to compensate tones of the image so that chromaticity values thereof formed on the image receiving sheet are in a region defined by four points of (a*=0, b*=0), (a*=20, b*=-5), (a*=18, b*=15), and (a*=0, b*=15) when an achromatic color signal is input and L*=80. According to an aspect of the present invention, the control unit is adapted to compensate tones of three primary colors so that the density graduation of light red of an image in accordance with a light red signal sent to the control unit becomes high and thereby the low density region (light region) of the image formed in accordance with a achromatic color signal becomes reddish. According to another aspect of the present invention, since the dye layers are formed so that the light region becomes reddish and the dark region greenish, images where colors from light orange to light red can be easily distinguished are formed.
摘要:
A printed wiring board includes a resin insulation layer having a first surface and a second surface on an opposite side of the first surface, the resin insulation layer having an opening for a first via conductor, a pad formed on the first surface of the resin insulation layer and provided to mount an electronic component, a first conductive circuit formed on the second surface of the resin insulation layer, and a first via conductor formed in the opening and connecting the pad and the first conductive circuit. The pad has an embedded portion embedded in the resin insulation layer and a protruding portion protruding from the resin insulation layer, and the embedded portion has an external shape which is greater than an external shape the protruding portion.
摘要:
A printed wiring board including a substrate having first and second surfaces and a penetrating hole extending through the substrate between the surfaces, a first conductive circuit on the first surface, a second conductive circuit on the second surface, and a through-hole conductor in the hole and connecting the first and second conductive circuits. The conductor includes an electroless plated film on the inner-wall surface of the hole, a first electrolytic plated film formed on the electroless plated film and forming a first opening portion opening on the first surface and a second opening portion opening on the second surface, a second electrolytic plated film filling the first portion, and a third electrolytic plated film filling the second portion. The first and second portions taper toward the central portion of the hole with respect to the axis direction of the hole and have cross sections forming a substantially U-shape, respectively.
摘要:
A method for manufacturing a double-sided circuit board includes preparing a substrate having the first and second surfaces, forming a first hole having a first opening with a diameter R1 on the first surface of the substrate, forming a second hole having a second opening with a diameter R2 on the second surface of the substrate, forming a third hole having a diameter smaller than R1 and/or R2 and connecting the first and second holes such that a penetrating hole formed of the first hole, the second hole and the third hole is formed in the substrate, forming a first conductive circuit on the first surface of the substrate, forming a second conductive circuit on the second surface of the substrate, and filling the penetrating hole with conductive material such that a through-hole conductor electrically connecting the first conductive circuit and the second conductive circuit is formed.
摘要:
A plating method includes providing an article in a plating bath, covering a surface of the article with an insulating member in the plating bath, and electrolytically plating the article while moving one of the insulating member and the article relative to each other.
摘要:
A repairable integrated thin film transistor matrix substrate includes an insulated substrate, and a plurality of parallel gate bus lines and a plurality of accumulated capacitance bus lines formed on the insulated substrate. Each of the accumulated capacitance bus lines extend parallel to and between a pair of the gate bus lines, and has a plurality of auxiliary capacitance electrodes which extend from it. A first insulated film is provided on the gate and accumulated capacitance bus lines and the auxiliary capacitance electrodes. A plurality of operating films are formed on the first insulated film, and on each of the operating films, a corresponding thin film transistors are provided. At least two of the thin film transistors are electrically connected to each of the gate bus lines. Also included is a plurality of parallel drain bus lines which are provided substantially perpendicular to the gate and the accumulated capacitance bus lines on the first insulated film. Each drain bus line electrically connects at least two of the thin film transistors. In addition, a second insulated film having an opening over each of the thin film transistors is provided on the thin film transistors and the drain bus lines. Further, a plurality of pixel electrodes are provided on the second insulated film, which pixel electrodes being electrically connected to a corresponding one of the transistors via the opening. At least one first portion of at least one of the gate and the drain bus lines overlaps with at least one second portion of at least one of the auxiliary capacitance and the pixel electrodes. A method for repairing the matrix substrate generally includes electrically connecting a conductor to either sides of a defect to act as a bypass.