Abstract: At a first timing, an ink jetting unit of a printer head coats an aqueous ink or an organic solvent ink on pixel forming regions on a panel substrate. At a second timing, a first infrared light source unit or a second infrared light source unit disposed adjacently to the ink jetting unit radiates infrared light to the aqueous ink or the organic solvent ink coated on the pixel forming regions to heat the ink and vaporize and dry the solvent in the aqueous ink or the organic solvent ink to fix a hole transporting material or an electron transporting material on the panel substrate.

Abstract: A partitioning wall is formed on one surface of a substrate. The partitioning wall has a lattice-like shape and defines a plurality of surrounded-regions. Each of the surrounded-regions is surrounded by the partitioning wall and includes a plurality of pixel-regions on which pixels are to be formed. A first predetermined region of the substrate adjacent to a part of the partitioning wall is maintained at a higher temperature, and a second predetermined region other than the first predetermined region is maintained at a lower temperature. Liquid which contains a carrier transporting material is coated on the pixel-regions in the surrounded-regions while maintaining the temperatures of the substrate.

Abstract: Disclosed is a high-definition display apparatus which allows a write current having an adequate value to flow. The display apparatus comprises a plurality of signal lines, a plurality of optical elements which presents display as a drive current equal in value to a write current flowing in the signal lines flows, and a current control driver which is connected to one ends of the signal lines, reduces the current value of a gradation signal by a current reduction ratio and lets the write current flow in the signal lines.

Abstract: A display panel including a plurality of pixels. Each pixel includes: a light emitting element; a pixel circuit having a driving transistor connected to the light emitting element in series; a data line to which a data current is supplied through the pixel circuit; a scanning line for selecting the pixel circuit; a first insulation film to cover the data line; and a second insulation film made of a material different from the first insulation film, to cover the data line and the first insulation film, wherein the following expression is satisfied.

Abstract: There is provided a manufacturing method of a display apparatus including a display panel in which a plurality of display pixels each having an organic electroluminescent element are arranged. A liquid-repellant coating is formed on a side of one surface of an insulating substrate constituting the display panel. A region alone in which each display pixel is formed is irradiated with a laser beam to modify a part of the liquid-repellant coating, in the pixel forming region, thereby providing lyophilicity thereto. A carrier transport layer is formed in the pixel forming region.

Abstract: There is provided a display drive apparatus for operating, in accordance with display data, a current control type optical elements each having a display pixel provided with the optical element and a drive element which supplies a driving current to the optical element. The display drive apparatus includes a gradation signal creating circuit which generates a gradation signal corresponding to a luminance gradation of the display data and supplies the gradation signal to the display pixel, a threshold voltage detection circuit which detects a threshold voltage peculiar to the drive element of the display pixel, and a compensation voltage application circuit which generates a compensation voltage for compensating for the threshold voltage of the drive element on the basis of the threshold voltage and applies the compensation voltage to the drive element.

Abstract: Disclosed is a high-definition display apparatus which allows a write current having an adequate value to flow. The display apparatus comprises a plurality of signal lines, a plurality of optical elements which presents display as a drive current equal in value to a write current flowing in the signal lines flows, and a current control driver which is connected to one ends of the signal lines, reduces the current value of a gradation signal by a current reduction ratio and lets the write current flow in the signal lines.

Abstract: A scanning head includes a surface emitting part array panel which has an array of surface emitting parts to emit light A plurality of light guide parts are respectively opposite to the surface emitting parts. Each of light guide parts has an entrance plane to receive the light from the surface emitting part, a reflection plane to reflect the light from the entrance plane, and an exit plane to emit the light from the reflection plane.

Abstract: A display device that displays image information in response to a display signal consisting of digital signals includes a display panel comprising a plurality of signal lines (DL) and a plurality of scanning lines (SL) which intersect at right angles with each other, and a plurality of display pixels (EM) sith optical emlem

Abstract: A light emission drive circuit includes an electric charge accumulating section for accumulating electric charges on the basis of a gradation sequence signal designating a luminance gradation sequence. A light emission control section flows a light emission drive current having a current value in accordance with an amount of the electric charges accumulated in the electric charge accumulating section. A writing control section controls a supplying state of the electric charges based on the gradation sequence signal to the electric charge accumulating section on the basis of a first control signal. A voltage control section controls a drive voltage for operating the light emission controlling section on the basis of a second control signal.

Abstract: A transistor array substrate includes a plurality of driving transistors which are arrayed in a matrix on a substrate. The driving transistor has a gate, a source, a drain, and a gate insulating film inserted between the gate, and the source and drain. A plurality of signal lines are patterned together with the gates of the driving transistors and arrayed to run in a predetermined direction on the substrate. A plurality of supply lines are patterned together with the sources and drains of the driving transistors and arrayed to cross the signal lines via the gate insulating film. The supply line is electrically connected to one of the source and the drain of the driving transistor. A plurality of feed interconnections are formed on the supply lines along the supply lines, respectively.

Abstract: A display panel includes a transistor array substrate which has a plurality of transistors including at least a driving transistor, and a plurality of pixel electrodes electrically connected to the driving transistor of the plurality of transistors. A plurality of light-emitting layers are provided on the pixel electrodes. A counter electrode is provided on the light-emitting layers. Each of a plurality of interconnections is arranged between the pixel electrodes adjacent to each other and electrically connected to the counter electrode.

Abstract: A display panel includes a plurality of sets of transistors which are formed on an upper side of a substrate. An insulating film is formed to cover upper surfaces of the transistors and has a plurality of trenches formed an upper surface thereof. A plurality of first interconnections are buried in the trenches. An interconnection insulating film covers upper surfaces of the first interconnections. A plurality of second interconnections are provided on an upper side of the interconnection insulating film. Each of a plurality of pixel electrodes is provided between adjacent two of the second interconnections. Each of a plurality of light-emitting layers is provided on the pixel electrode. A counter electrode is provided on the light-emitting layer.

Abstract: A display panel includes a transistor array substrate which has a plurality of pixels and is formed by providing a plurality of transistors for each pixel, each of the transistor having a gate, a gate insulating film, a source, and a drain. A plurality of interconnections are formed to project to a surface of the transistor array substrate and arrayed in parallel to each other. A plurality of pixel electrodes are provided for each pixel and arrayed between the interconnections on the surface of the transistor array substrate along the interconnections. Each of a plurality of light-emitting layers is formed on each pixel electrode. A counter electrode is stacked on the light-emitting layer.

Abstract: A drive circuit which drives an optical element in accordance with a gradation signal corresponding to display data includes an electric charge holding circuit which holds electric charges based on the gradation signal as a voltage component, and a driving current control circuit which generates a driving current based on the voltage component held in the electric charge holding circuit and supplies the generated driving current to the optical element. The driving current control circuit has at least one double-gate type thin film transistor. The transistor includes a semiconductor layer, a first gate electrode provided above the semiconductor layer, a second gate electrode provided below the semiconductor layer, and a source and drain electrodes provided on both end portion sides of the semiconductor layer.

Abstract: A display device includes a display panel having rows of scanning lines and columns of data lines; and a matrix of display pixels near intersections of the scanning lines and the data line. A scanning driver circuit which selects display pixels of rows connected to some of the scanning lines, and a signal driver generates display data for each display pixel. The display panel has scanning line groups which constitute sets of scanning lines through which simultaneous selection is performed by the scanning driver circuit; a plurality of scanning signal lines connected to each of the scanning line groups; and a plurality of data line groups which constitute sets of the data lines corresponding to a line count of the display pixels of the rows connected to each of the scanning line groups within the data lines.

Abstract: A display device which displays image information based on display data comprising a display panel having a plurality of signal lines and scanning lines with a plurality of display pixels containing current control type light emitting devices; a scan driver circuit applies a scanning signal to each of the scanning lines and sets the display pixels connected to the scanning lines in a selective state; a signal driver circuit generates gradation current based on the display data luminosity gradation component and supplies to the display pixels set in the selective state; a precharge circuit applies a precharge voltage to each signal line and sets a capacity component attached to each of the scanning lines in a predetermined charged state; and an operation control circuit controls setting of the light emitting devices in a non-light emitting state when the capacity component is set in a predetermined charged state.

Abstract: A display device includes a substrate, and a light-emitting element which is provided on one side of the substrate. A pixel circuit is provided on the side of the substrate, and has at least one electrode to drive the light-emitting element. An interconnection is provided on the side of substrate, is electrically connected to the pixel circuit and has a conductive layer different from the electrode of the pixel circuit.

Abstract: A display drive apparatus includes a selection circuit which sets display pixels in a plurality of specific rows of the display panel in a selected state with periods at least overlapping each other. A gradation signal generation circuit generates a gradation signal which controls a luminance gradation of each display pixel based on the display data and sequentially supplies the generated gradation signal in time series. A plurality of signal distribution circuits sequentially distribute the gradation signal supplied by the gradation signal generation circuit in accordance with the plurality of display pixels in each column at the timing of time-series supply. A plurality of current holding circuits individually hold the distributed gradation signal and simultaneously supply as the gradation current a current having a current value based on the held gradation signal to the display pixels in the plurality of specific rows.

Abstract: A pixel circuit flows a current having a current value corresponding to a test voltage without intervening any display element.