摘要:
A display device of at least one embodiment of the present invention is a display device of an active matrix type, and includes a display driver supplied with image data included in serial data by serial transmission. The serial data is provided with a first flag for specifying a polarity of voltage of a common electrode. The display driver extracts the first flag from the serial data in accordance with a timing of a serial clock, and performs display in accordance with the image data, while generating the voltage of the common electrode which voltage has the polarity specified by the first flag extracted. This realizes a display device capable of generating a timing signal for AC common voltage, while having a small circuit.
摘要:
In a display panel having no black matrix in a picture-frame region, occurrence of flicker in the picture-frame region is suppressed. On a substrate constituting a liquid crystal panel, a peripheral electrode is formed in such a way as to cover at least a part of an electrical wiring line arranged in a picture-frame region facing a counter electrode with a liquid crystal layer therebetween. Also, a voltage generating circuit for providing a predetermined potential to the peripheral electrode is provided in the liquid crystal panel. A control signal, which is a binary signal, is provided to the voltage generating circuit from an external source. The voltage generating circuit provides a potential having a predetermined potential difference from a potential provided to the counter electrode, or a potential equal to the potential provided to the counter electrode, to the peripheral electrode according to a value of the control signal.
摘要:
A display device of an embodiment of the present invention is a display device of an active matrix type, and includes a display driver supplied with image data included in serial data by serial transmission. The serial data has a first flag for specifying a polarity of voltage of a common electrode added thereto. The display driver generates, in accordance with a timing of a serial clock, a timing signal for a horizontal period for a data signal line driver, and a timing signal for a gate signal line driver. This realizes a display device capable of easily generating, within a driver IC, a timing signal for writing the image data in pixels.
摘要:
A display device of at least one embodiment of the present invention is a display device of an active matrix type, and includes a display driver supplied with image data included in serial data by serial transmission. The serial data is provided with a first flag for specifying a polarity of voltage of a common electrode. The display driver extracts the first flag from the serial data in accordance with a timing of a serial clock, and performs display in accordance with the image data, while generating the voltage of the common electrode which voltage has the polarity specified by the first flag extracted. This realizes a display device capable of generating a timing signal for AC common voltage, while having a small circuit.
摘要:
A display device of an embodiment of the present invention is a display device of an active matrix type, and includes a display driver supplied with image data included in serial data by serial transmission. The serial data has a first flag for specifying a polarity of voltage of a common electrode added thereto. The display driver generates, in accordance with a timing of a serial clock, a timing signal for a horizontal period for a data signal line driver, and a timing signal for a gate signal line driver. This realizes a display device capable of easily generating, within a driver IC, a timing signal for writing the image data in pixels.
摘要:
In a liquid crystal display device, an in-phase signal or a reversed phase signal of a signal supplied to a counter electrode is supplied to a source bus line during a video signal unwritten period, where (i) a video signal written period represents a period during which a voltage is applied to a pixel electrode in accordance with a video signal to be supplied to the source bus line and (ii) the video signal unwritten period represents a period between end of the data written period and start of a next data written period. This allows an electronic potential difference between the source bus line and the counter electrode to be kept constant. It is therefore possible to attain a liquid crystal display device excellent in its display quality by preventing flickers from being generated between a source bus line and a counter electrode.
摘要:
A semiconductor device comprises: a first semiconductor layer of a first conductivity type; a second semiconductor layer of a second conductivity type; a trench; a thick gate insulating film; a thin gate insulating film; a gate electrode; and a semiconductor region of a second conductivity type. The second semiconductor layer is provided on the first semiconductor layer. The trench penetrates the second semiconductor layer and intrudes into the first semiconductor layer. The thick gate insulating film is provided on a inner wall of the trench below an upper surface of the first semiconductor layer. The thin gate insulating film is provided on the inner wall of the trench at a part upper than the thick gate insulating film. The gate electrode fills the trench. The semiconductor region of a second conductivity type is selectively formed to adjoin the trench and to project from a bottom surface of the second semiconductor layer into the first semiconductor layer.
摘要:
A semiconductor device comprises: a first semiconductor region of a first conductivity type; a second semiconductor region of a second conductivity type provided on the first semiconductor region; a trench formed in the second semiconductor region; a thick gate insulating film selectively provided in a center area of a bottom surface of the trench; a thin gate insulating film provided along a periphery of the bottom surface and on a sidewall of the trench; a third semiconductor region of the first conductivity type that is selectively provided below the thin gate insulating film provided along the periphery of the bottom surface of the trench and that extends to the first semiconductor region; a fourth semiconductor region of the first conductivity type selectively provided in the surface of the second semiconductor region; and a gate electrode filling the trench via the gate insulating film.
摘要:
The present invention relates to a schottky-barrier diode capable of decreasing a leakage current due to damage generated on inner walls of trenches, and securing a large operation region for itself. In the device, an N.sup.- -type epitaxial layer is formed on a N.sup.+ -type silicon substrate. In a predetermined region in the epitaxial layer, a P.sup.+ -type base diffusion layer having high impurity concentration is formed. Trenches are formed through from the surface of the base diffusion layer to the epitaxial layer. In each of the trenches, an N.sup.- -type selective epitaxial growth region is formed. A schottky metal is formed on a surface comprising the surfaces of the base diffusion layer, which includes the selective epitaxial growth regions, and the epitaxial layer. Surface regions as the surfaces of the selective epitaxial growth regions filling the trenches function as diode operation regions.
摘要:
A metal foil for secondary battery generating less cutting chips at the time of forming an opening and allowed to have a higher aperture ratio without reducing strength and a secondary battery in which short circuit caused by generation of electrode debris can be suppressed are provided. A metal foil 1 for secondary battery is provided with a metal thin plate 2, plural first convex portions 3A formed on a first principal surface 2a of the thin plate 2 by plastic forming and plural second convex portions 3B formed on a second principal surface 2b opposite to the first principal surface 2a by the plastic forming, wherein the convex portions 3A and 3B each have an opening 31 of which aperture plane 31a is orthogonal or substantially orthogonal to the principal surfaces 2a and the 2b.