摘要:
A driver circuit for a matrix-type liquid crystal display panel capable of displaying pictures having the same number of scan lines as a conventional television set without using a frame memory, by applying the mean value of two video signals matching the 1-H advance and 1-H behind odd (even) numbered scan lines, where the video signal in the odd (even) field correctly matches the even (odd) numbered scan lines.
摘要:
From an acrylonitrile-dimerization liquid product prepared by contacting acrylonitrile with a specific catalyst composed of a metal halide and a trialkylamine, 2-methyleneglutaronitrile is efficiently recovered by a process which comprises contacting the reaction liquid product under stirring with benzene, toluene or xylene as well as with water in specific ratios, and then separating the resulting aromatic hydrocarbon layer from the mixture to recover 2-methyleneglutaronitrile.
摘要:
A photosensitive body according to this invention includes a photosensitive layer formed on a surface thereof for being electrically charged and having an electrostatic latent image formed thereon by being exposed to light irradiation, and wherein the photosensitive layer has an initial dynamic friction coefficient μk0 of 0.6 or less against a prescribed member, and wherein where a dynamic friction coefficient of the photosensitive layer against the prescribed member after a prescribed friction is given is defined as a dynamic friction coefficient μk1, the photosensitive layer has a dynamic friction coefficient variation amount Δμk, as a difference between the initial dynamic friction coefficient μk0 and the dynamic friction coefficient μk1, of 0.06 or less. The photosensitive layer having the above mentioned structure has superior durability due to superior wear resistance, so that the photosensitive layer can be made thinner while preventing duration deterioration that may occur with the thinner photosensitive layer.
摘要:
A method for driving a liquid crystal panel including a plurality of pixel electrodes arranged in a matrix, a plurality of data lines respectively connected to the pixel electrodes in a plurality of columns, a plurality of gate lines respectively connected to the pixel electrodes in a plurality of rows, and a plurality of switching devices, respectively connected to the pixel electrodes, for connecting and disconnecting the corresponding pixel electrode and the corresponding data line based on a signal sent from the corresponding gate line. The method includes the step of applying a driving voltage having a waveform corresponding to image data used for display to each data line while inverting the driving voltage gate line by gate line and frame by frame, so as to maintain an average value of the driving voltage in each frame within a certain range.
摘要:
There is provided an information display device in which speed of detecting input coordinates on a display screen is increased. A coordinate detection circuit 7 detects indication coordinates at a tip end of an electronic pen 6 based on an induction voltage induced at a detection electrode of the electronic pen 6 in scanning a row electrode G and a column electrode S. A coordinate output circuit 17 obtains indication coordinates at the tip end of the electronic pen 6 based on a movement amount detection signal from a movement amount detecting section 20 of the electronic pen 6. A coordinate signal generating circuit 18 outputs an x-coordinate signal and a y-coordinate signal by combining the indication coordinates detected by the coordinate detection circuit 7 and the indication coordinates obtained by the coordinate output circuit 17. Thus by filling an interval between the indication coordinates detected by the coordinate detection circuit 7 with indication coordinates obtained by the coordinate output circuit 17, an apparent detection speed of the input coordinates can be increased.
摘要:
A driving method of the invention is suitable for an active matrix type liquid crystal display apparatus having row and column electrodes. The driving method includes the steps of applying a gate-one pulse for writing data for one line to the column electrodes to each of the row electrodes. The gate-on pulse has a pulse waveform which includes at least one concave portion during a horizontal period.
摘要:
A process for producing 5-aminotetrazole comprising the steps of: reacting cyanamide with hydrazine in a solvent to form a salt of aminoguanidine; adding thereto an acid and then a nitrite to form a salt of diazoguanidine; and cyclizing the salt of diazoguanidine, upon heating, to thereby produce the 5-aminotetrazole, without isolating the intermediate product and also a process for producing 5-aminotetrazole or a metal salt thereof in the form of powder by spray drying.
摘要:
In an image forming machine in which a latent image is formed on an image carrier using an exposure device corresponding to an image forming signal, and a toner image is formed by a developing device using toners, there is provided with a first adjustment device by which an adhesion amount of toner is adjusted, a discriminator by which an isolated dot or an edge dot is discriminated, a second adjustment device by which an adhesion amount of toner is adjusted according to a discrimination result by the discriminator, and a controller by which the adjustment conditions of the adhesion amount of the second adjustment device differ corresponding to the discriminated isolation dot or edge dot, and areas other than the discriminated dots.
摘要:
An insulated gate thin film transistor (TFT) comprises first and second insulating films, and a semiconductor film disposed thereon. The first insulating film is prepared with anodization. The second insulating film is prepared with CVD or sputtering. The semiconductor film is amorphous, or microcrystalline prepared with glow discharge.
摘要:
In a toner image forming apparatus capable of changing the fixing condition of a fixing device to fix a toner image on a recording sheet, there is provided a control device to change at least one of the charging condition of a charging device, the exposure condition of the exposing device and the developing condition of the developing device to change the toner amount in the toner image in accordance with the change in the fixing condition.