摘要:
A photosensor includes a lower electrode formed of a metal film, an amorphous silicon film disposed on the lower electrode, an n-type amorphous silicon film disposed on the amorphous silicon film, an upper electrode that is disposed on the n-type amorphous silicon film, and receives a first reference voltage, a capacitive element connected between the lower electrode and a second reference voltage, a switch circuit that inputs a first supply voltage to the lower electrode in an on-state, and puts the lower electrode into a floating state in an off-state, and a detector circuit that detects a voltage change in the lower electrode after irradiating the amorphous silicon film for a given period with light when the switch circuit is on.
摘要:
A photosensor array includes plural photosensor pixels. Each of the photosensor pixels includes a lower electrode, an amorphous silicon film, an n-type amorphous silicon film, and an upper electrode. The photosensor array includes plural scanning lines connected to the upper electrodes, plural read lines connected to the lower electrodes, a scanning circuit that is connected to the plural scanning lines, and sequentially supplies a selection scanning signal of a first voltage to the respective scanning lines, a first unit that inputs a second voltage higher than the first voltage to the plural read lines in a blanking period of one horizontal scanning period, and thereafter puts the plural read lines into the floating state, and a second unit that outputs a voltage change in each of the read lines within one horizontal scanning period as the sensor output voltage of the photosensor pixel.
摘要:
A photosensor includes a lower electrode formed of a metal film, an amorphous silicon film disposed on the lower electrode, an n-type amorphous silicon film disposed on the amorphous silicon film, an upper electrode that is disposed on the n-type amorphous silicon film, and receives a first reference voltage, a capacitive element connected between the lower electrode and a second reference voltage, a switch circuit that inputs a first supply voltage to the lower electrode in an on-state, and puts the lower electrode into a floating state in an off-state, and a detector circuit that detects a voltage change in the lower electrode after irradiating the amorphous silicon film for a given period with light when the switch circuit is on.
摘要:
A photosensor array includes plural photosensor pixels. Each of the photosensor pixels includes a lower electrode, an amorphous silicon film, an n-type amorphous silicon film, and an upper electrode. The photosensor array includes plural scanning lines connected to the upper electrodes, plural read lines connected to the lower electrodes, a scanning circuit that is connected to the plural scanning lines, and sequentially supplies a selection scanning signal of a first voltage to the respective scanning lines, a first unit that inputs a second voltage higher than the first voltage to the plural read lines in a blanking period of one horizontal scanning period, and thereafter puts the plural read lines into the floating state, and a second unit that outputs a voltage change in each of the read lines within one horizontal scanning period as the sensor output voltage of the photosensor pixel.
摘要:
A display device in which gate drive circuits are formed at both sides of an effective screen, and a static charge shield conductive film is formed to cover the gate drive circuits. In the manufacturing step and after producing the display device, the constant voltage is applied to the static charge shield conductive film via the common pad, the earth connection line and the like.
摘要:
To provide a field-sequential liquid crystal display device capable of reducing color shading. The field-sequential liquid crystal display device includes a liquid crystal display panel, a driving circuit driving the liquid crystal display panel and a backlight irradiating plural colors of light including a first color and a second color sequentially, in which a video voltage of one color of the plural colors is written in respective pixels of plural pixels in each field of the one frame period, and light of the one color of the plural colors is emitted from the backlight to display images on the liquid crystal display panel, and when the drive circuit writes a video voltage of the second color next to the video voltage of the first color in a pixel electrode of a first pixel, finish timing of light emission of a light source of the backlight irradiating light of the first color in an area where the first pixel exists is later than start timing of writing the video voltage of the second color in the pixel electrode of the first pixel.
摘要:
In the display device which is used in a miniaturized portable equipment, when a drive circuit is also connected on the same substrate as pixels, an input signal of low voltage has a level thereof shifted even when the threshold value is large or fluctuated. The display device includes pixel electrodes, switching elements which supply video signals to the pixel electrodes, and a drive circuit which supplies the video signals to the switching elements on the same substrate, wherein the drive circuit includes a level shift circuit, the level shift circuit includes a transistor. In a state that the transistor assumes an ON state, when an input signal is inputted to a source terminal and the input signal is at a low voltage level, a drain terminal assumes a low voltage level. Further, even when the input signal is at a high voltage level equal to or lower than a threshold value, the drain terminal outputs a voltage equal to or more than the threshold value as a high level voltage.
摘要:
The present invention provides a photosensor device including: a photodiode array in which photodiodes are arranged in an array shape; scanning lines which are coupled to first electrodes of the photodiodes in respective lines of the photodiode array; read lines which are coupled to second electrodes of the photodiodes in respective columns of the photodiode array; a scanning circuit which is coupled to the scanning lines and sequentially supplies a selected scanning signal to the respective scanning lines in each horizontal scanning period; and a signal processing circuit which is coupled to the read lines and loads each voltage fluctuation of the read lines in one horizontal scanning period as signal voltage when reading a signal, wherein each of the photodiodes is made of amorphous silicon or microcrystal silicon, and forward bias voltage is applied to each of the photodiodes when reading a signal.
摘要:
In a display device which arranges a memory part for every display pixel, an erroneous operation of the memory part and the power consumption can be reduced. In a display device provided with a display panel which includes a plurality of display pixels, video lines which apply video data to the display pixels, and scanning lines which apply a scanning voltage to the display pixels, the display pixel includes a memory part which stores the video data, a pixel electrode, and a switching part which selectively applies a first video voltage or a second video voltage which differs from the first video voltage to the pixel electrode in response to the video data stored in the memory part.
摘要:
The present invention provides a photosensor device including: a photodiode array in which photodiodes are arranged in an array shape; scanning lines which are coupled to first electrodes of the photodiodes in respective lines of the photodiode array; read lines which are coupled to second electrodes of the photodiodes in respective columns of the photodiode array; a scanning circuit which is coupled to the scanning lines and sequentially supplies a selected scanning signal to the respective scanning lines in each horizontal scanning period; and a signal processing circuit which is coupled to the read lines and loads each voltage fluctuation of the read lines in one horizontal scanning period as signal voltage when reading a signal, wherein each of the photodiodes is made of amorphous silicon or microcrystal silicon, and forward bias voltage is applied to each of the photodiodes when reading a signal.