摘要:
The invention provides an image display apparatus which increases the degree of freedom in designing of an active element of a pixel to allow good designing and can adjust the display brightness freely and simply. Each pixel includes a light emitting element (OLED) with a brightness value which varies depending upon an amount of current supplied thereto, a first TFT controlled by a scanning line for writing brightness information given thereto from a data line into the pixel, and a second TFT for controlling the amount of current to be supplied to the OLED corresponding to the brightness information written. Writing of the brightness information into each pixel is performed by applying an electric signal corresponding to the brightness information to the data line while the scanning line is selected. The brightness information written in each pixel is held by the pixel also after the scanning line is placed into a non-selected state so that the OLED can continue lighting with a brightness value corresponding to the brightness information held by the pixel. A stopping control line compulsorily extinguishes the OLEDs of the pixels connected to the same scanning line at least in a unit of a scanning line so that the OLEDs are placed into an extinguished state from a lit state within a period of one scanning cycle after the brightness information is written into the pixels until new brightness information is written into the pixels subsequently.
摘要:
In a display device including, a display area having a plurality of organic EL devices on a substrate; a peripheral area having a driving circuit for the organic EL devices and surrounding the display area on the substrate; and an organic insulating film covering at least the driving circuit, the organic insulating film has a separating groove which divides itself into the inner part and outer part at the periphery of the display area.
摘要:
An active-matrix display device that employs current-programmed-type pixel circuits and performs the writing data to each of pixels on a line-by-line basis. The active-matrix display device has a matrix of current-programmed-type pixel circuits includes a data line driving circuit formed of a plurality of current driving circuits (CD) arranged so as to correspond to respective data lines. The data line driving circuit (CD) holds image data (luminance data herein) in the form of voltage, and then converts the voltage of the image data into a current signal. The current signal is then fed to the data lines at a time. The image information is thus written on the pixel circuits.
摘要:
A reaction device including: a plurality of reaction areas; and a plurality of heating parts configured to be each provided for a respective one of the reaction areas, wherein each of the heating parts includes: a heat source; a scan line for selecting the heating part; a data line that transmits heating amount information used for heating to the heat source; a writer that acquires the heating amount information transmitted from the data line; a holder that stores the heating amount information also after the scan line is turned to a non-selected state; and a heat generation controller that controls heat generation of the heat source based on the heating amount information.
摘要:
A pixel electrode and a display device capable of lowering power consumption with a uniformity of luminance retained, and realizing a display image having a high contrast and a high image quality, wherein a correction period for correcting a variation in properties of a drive transistor in a pixel during a frame, a write period for driving a first switch by a first control line and writing a data signal from a signal line to the node, and a drive period for storing the written data signal and driving an electro-optical element, are set, and the drive is controlled so that an interval having the correction period, the write period, and the drive period, and an interval having the write period and the drive period without the correction period exist.
摘要:
Each of picture elements comprises an input transistor for accepting a signal current from a data line when a scanning line is selected, a conversion transistor for converting the signal current into a voltage and for holding thus converted voltage, and a drive transistor for driving a light emitting device with drive current corresponding to the converted voltage. The conversion transistor flows the signal current to its channel to generate the voltage corresponding to the converted voltage and a capacitor to restrain the generated voltage. Further the drive transistor flows the drive current corresponding to the voltage stored in the capacitor. In this case the threshold voltage of the drive transistor is set not to be smaller than the threshold voltage of the conversion transistor, and thereby a leakage current flowing through the light emitting device is suppressed.
摘要:
A pixel circuit is disposed where a scan line arranged in a row direction to supply a control signal and a data line arranged in a column direction to supply a video signal intersect each other. The pixel circuit includes: a sampling transistor; a drive transistor; a capacitor connected between the current path end of the sampling transistor and the gate of the drive transistor; and a light-emitting device connected to the current path end of the drive transistor. The pixel circuit connects the mobility with negative feedback during a mobility connection period.
摘要:
A display unit capable of preventing corrosion of a metal wiring and improving the reliability is provided. The display unit includes a driving panel having a bonding region and a terminal region on a driving substrate and a sealing panel bonded on the bonding region of the driving panel with an adhesive layer in between. The bonding region includes a circuit section, a coating layer covering the circuit section, and a display portion composed of a plurality of display devices. A plurality of metal wirings is electrically connected to the circuit section in the bonding region and extended to the terminal region. The coating layer has at least one separated region between the plurality of metal wirings.
摘要:
It is an object to provide a display device in which an operational characteristic in a bottom gate type organic semiconductor thin film transistor can be maintained to a stable characteristic without receiving an influence of an electrode provided on an upper layer thereof, and a display with a high reliability can be realized by using this as a driver element. A bottom gate type thin film transistor Tr provided on a substrate 1 and a pixel electrode a provided on an upper part of the thin film transistor Tr via a protection film 11 and an inter-layer insulating film 15 are provided, and between the thin film transistor Tr and the pixel electrode a, a conductive shield layer 13a is arranged while an insulation property is maintained between these.
摘要:
A display device including a current drive circuit capable of stably and correctly supplying an intended current to a light emitting element of each pixel without being affected by variations in characteristics of an active element inside the pixel and as a result capable of displaying a high quality image, wherein each pixel comprises a receiving use transistor TFT3 for fetching a signal current Iw from a data line DATA when a scanning line SCAN-A is selected, a conversion use transistor TFT1 for once converting a current level of a fetched signal current Iw to a voltage level and holding the same, and a drive use transistor TFT2 for passing a drive current having a current level in accordance with the held voltage level through a light emitting element OLED. The conversion use thin film transistor TFT1 generates a converted voltage level at its own gate by passing the signal current Iw fetched by the TFT3 through its own channel. A capacitor C holds the voltage level created at the gate of the TFT1. The TFT2 passes the drive current having a current level in accordance with the held voltage level through the light emitting element OLED.