摘要:
An active-matrix display includes a data line, at least one select line, a control unit supplying a voltage signal and a current signal to the data line, and a pixel circuit receiving the voltage signal and the current signal from the data line to drive a light emitting element, the control unit including a voltage or first current source supplying a voltage or current pulse to the data line in order to make the voltage holding unit hold the voltage signal for making the light emitting element emit light having predetermined brightness in a first selection period in which the first switch is closed, a second current source supplying the current signal for making the light emitting element emit light having the predetermined brightness to the data line in a second selection period in which the first switch and the second switch are closed, a detection circuit detecting potential held in the voltage holding unit in the second selection period, and a correction unit correcting the voltage signal based on a relationship between the current signal and the detected potential.
摘要:
A display apparatus includes a scanning line, a signal line, and a pixel circuit. The pixel circuit is selected according to a signal applied to the scanning line, and a signal is input to the selected pixel circuit from the signal line. The pixel circuit include a holding capacitor, a first switch which opens and closes connection between one terminal of the light emitting element and the signal line in accordance with a signal applied to the scanning line, and a second switch which opens and closes connection between one terminal of the holding capacitor and the signal line in accordance with a signal applied to the scanning line. First and a second voltage supplies are switchably connected to the signal line, and during a period when the pixel circuit is selected, the first voltage supply is connected to the signal line and the first switch is closed so that a voltage of the first voltage supply is applied to a terminal of the light emitting element, and the second voltage supply is connected to the signal line and the second switch is closed and the first switch is opened, so that a voltage of the second voltage supply is applied to one terminal of the holding capacitor. A voltage of the first voltage supply is determined based on a terminal-to-terminal voltage of the light emitting element when a voltage of the second voltage supply is applied to the holding capacitor and current flows in the light emitting element.
摘要:
Display image quality degradation caused by a burn-in phenomenon is prevented in a self-emission type display apparatus. A degradation characteristic acquisition circuit acquires degradation characteristics of a pixel region, and a boundary portion detection circuit detects a boundary of the degradation characteristics. A correction amount operation circuit arithmetically operates a correction amount based on the boundary, and a video signal correction circuit corrects a video signal. The correction amount is determined based on the boundary of the degradation characteristics such that emission luminance is gently varies in a periphery of a boundary of a pixel due to the burn-in phenomenon, and whereby the burn-in phenomenon becomes inconspicuous.
摘要:
An optical information recording method includes the steps of irradiating laser light onto cells provided on a track of an optical information recording medium, recording on the optical information recording medium multilevel information including information of a level zero for which no information pit is formed, by changing, for each of the cells, widths in a track direction or sizes of information pits in the cells, and, for recording the information of a level zero, irradiating the laser light at a power that is greater than an erasing power for erasing the information pits and that does not permit formation of the information pits.
摘要:
Conventional I-form crystals of 5-hydroxy-1-methylhydantoin contain, remaining therein in a considerable amount, the organic solvent used in a purification step. In contrast, in II-form crystals, the amount of the organic solvent remaining therein is smaller than the detection limit. Namely, the II-form crystals contain substantially no residual organic solvent. The novel II-form crystals of 5-hydroxy-1-methylhydantoin obtained through recrystallization from water not only contain substantially no residual organic solvent, but also have a high bulk density and are hence advantageous for pharmaceutical preparation. They further have properties advantageous for production, such as low adhesion. The crystals are significantly useful as a material for medicines required to have high safety, such as drugs for renal insufficiency.
摘要:
An object of the present invention is to provide a semiconductor production technology capable of preventing the peeling of the electrode which occurs in die bonding or wire bonding. There is provided a semiconductor element having an electrode in a surface or in a rear face of a semiconductor substrate, the semiconductor element having a structure in which an amorphous silicon layer 106 is inserted in between an electrode 107 and a semiconductor substrate 101, wherein hydrogen is not added to the amorphous silicon layer 106. Furthermore, an amorphous silicon layer 104 is inserted also in the interface between an electrode 105 and an insulating layer 103, and in the interface between the insulating layer and the semiconductor substrate. Moreover, the present invention is equally applicable to a semiconductor laser having an insulating layer, which serves as a reflective layer, in an oscillating surface side of light, and insulating layers, which serve as a multilayer reflective layer, in a non-oscillating surface side.
摘要:
An optical information recording method includes the steps of irradiating laser light onto cells provided on a track of an optical information recording medium, recording on the optical information recording medium n-level multilevel information including information of level 0 for which no information pit is formed, by changing, for each of the cells, widths in a track direction or sizes of information pits in the cells, and, for recording the information of level 0, irradiating the laser light at a power that is greater than an erasing power for erasing the information pits and that does not permit formation of the information pits.
摘要:
A laminate comprising at least two layers of a photosensitive resin layer and a polyimide precursor resin layer; a process for formation of an insulating protective layer using a laminate which comprises laminating a laminate comprising at least photosensitive resin layer and a polyimide precursor resin layer on an insulating board having an exposed circuit; selectively exposing the photosensitive resin layer to active light; developing the resultant photosensitive resin layer; removing the exposed polyimide precursor resin layer by etching it with an alkaline solution using the photosensitive resin layer as a mask; removing the photosensitive resin layer; and then curing the residual polyimide precusor resin layer; and a process for preparation of a printed circuit which comprises forming a polymide precursor resin layer on an insulating board having an exposed circuit, patterning the resin layer with an alkaline solution, and then curing it.The laminate of this invention can provide extremely easily an insulating protective layer for circuits having a high processing precision and excellent in reliability on insulation. Further, a printed circuit having a high processing precision and excellent in reliability on insulation can be provided extremely easily by the processes of this invention.
摘要:
The present invention relates to novel luciferin derivatives and salts thereof represented by the following formula (I), which are useful as chemiluminescence reagents. ##STR1## wherein X is hydrogen, an amino-protecting group, R--, R--CO--, R--SO.sub.2 --, R--NHCO-- or R--NHCS--, R is a fluorescence probe, and n represents an integer of 1 to 4.
摘要:
A display apparatus includes a plurality of pixels disposed in a matrix pattern, each of the pixels emitting light, an acquisition unit for acquiring degradation characteristics of an emission luminance of each pixel from a video signal or a signal output from the pixel, and a detection unit for detecting a boundary of pixels showing different degradation characteristics of the plurality of pixels based on the degradation characteristics acquired by the acquisition unit. A calculation unit calculates a correction amount of the video signal to the pixels in a periphery of the boundary such that the emission luminance is gently varied in the periphery of the boundary when the plurality of pixels in the periphery of the boundary detected by the detection unit are caused to emit light with a same video signal. In addition, a correction unit corrects the video signal based on the calculated correction amount, and a video image is displayed by the plurality of pixels based on the corrected video signal.