135results about How to "Uniform Image Quality" patented technology

An array substrate for a COA(Color filter On Array)-IPS(In-Plane Switching) mode LCD is provided to offer a refresh structure according to colors in consideration of different dielectric constants ofred, green, and blue color filters, thereby improving the uniformity of display quality. A plurality of gate lines(G1-Gn) and a plurality of data lines(D1-Dn) cross each other to define pixel regions.A liquid crystal capacitor(CLC) and a storage capacitor(Cst) connected to the liquid crystal capacitor in parallel are formed within each of the pixel regions. Color filters are formed for the pixelregions respectively such that one color filter having a specific color corresponds to one pixel region. First, second, and third common lines(108a,108b,108c) are formed within pixel regions corresponding to red, green, and blue color filters(130a,130b,130c), respectively. The first, second, and third common lines are connected to a separate common electric power. Different common voltages are applied to the pixel regions connected to the first, second, and third common lines to compensate for differences of pixel voltages due to different dielectric constants of the color filters.

A pixel capable of improving response characteristics and displaying an image having a uniform image quality, and an organic light emitting display device using the same. The pixel includes an organic light emitting diode coupled between first power and second power; a pixel circuit coupled between the first power and the organic light emitting diode for supplying a driving current to the organic light emitting diode; and a first transistor for supplying a reset voltage to an anode electrode of the organic light emitting diode during a first period when a previous scan signal is supplied to a previous scan line.

An organic electroluminescent device includes first and second substrates spaced apart from and attached to each other, the first and second substrates including a plurality of pixel regions and a periphery region surrounding the plurality of pixel regions, a plurality of gate lines on an inner surface of the first substrate, a plurality of data lines crossing the plurality of gate lines, a plurality of driving thin film transistors, each of the driving thin film transistors adjacent to one of the plurality of pixel regions, a plurality of power lines connected to the driving thin film transistors, a plurality of gate pads connected to an end portion of the gate lines within the periphery region, a plurality of data pads connected to an end portion of the data lines within the periphery region, a plurality of power pads connected to an end portion of the power lines within the periphery region, at least one dummy pad within the periphery region, the at least one dummy pad being independent of each of the gate pads, the data pads, and the power pads, a first electrode on an inner surface of the second substrate, the first electrode connected to the dummy pad, an organic electroluminescent layer on the first electrode, a plurality of second electrodes on the organic electroluminescent layer within each of the pixel regions, and a plurality of connection electrodes electrically interconnecting the first substrate with the second substrate.

An image forming apparatus includes a developing section in which an image is developed by using liquid toner. The liquid toner has passed through the developing section is conveyed in a first path by gravity. A tank is adapted to store a carrier liquid, and is connected to a second path in which the carrier liquid stored in the tank is conveyed by gravity and which joins the first path.

A containing member contains a recording medium which has a base member and granular material coated on both sides of the base member, and roughness of the surfaces of the coated granular material is smaller than the roughness of the base member. A printing unit includes an ink-jet recording head which jets recording liquid onto the recording medium. A conveyance unit and a conveyance path convey the recording medium, one side of which has been already printed, into the printing unit again in order to print image onto the other side thereof. A unit is provided for enabling the printing unit to print image on the recording medium such that the vertical orientations of the images printed both sides of the recording medium are coincide with each other.