179results about How to "Reduce ejection" patented technology

A liquid droplet ejection apparatus performs a drawing operation on a workpiece set on a set table by driving the ejection of a functional liquid droplet ejection head in a head unit while moving the head unit in a main scanning direction relative to the set table facing a drawing area by an X-axis table. The liquid droplet ejection apparatus includes a periodic flushing unit which is disposed on a main scan moving axis at a position offset from the drawing area towards the main scanning direction and which receives forcible ejection from the functional liquid droplet ejection head during non-drawing time and a pre-drawing flushing unit which is disposed adjacent to the set table and faces the drawing area and which receives forcible ejection from the functional liquid droplet ejection head performed immediately before starting the drawing operation.

A method is provided which is intended to reduce a visibility of ink dots ejected onto a print medium during a preliminary ejection operation to produce a satisfactory printed image. Preliminary ejection data is compared with image data. When the preliminary ejection is necessarily performed on a pixel that has no image data, image data of a pixel close to the pixel being processed is searched. When image data exists, the image data is moved to a pixel that has preliminary ejection data. The preliminary ejection data is added to the image data one scan at a time to perform printing.

The invention provides an organic light-emitting diode (OLED) luminescent device and an OLED display device. The OLED luminescent device comprises a cathode, a luminescent layer, an anode, a substrate and a light extraction layer. The light extraction layer at least comprises a first material layer and a second material layer. The first material layer is positioned on the substrate, and the second material layer is positioned on the first material layer. The first material layer and the second material layer have a first contact surface and a second contact surface which are contacted to each other respectively. Vertical sections of the first contact surface and the second contact surface are in a mutually-nested regular zigzag form. The refractive index of the first material layer n[A], the refractive index of the substrate n[substrate] and the refractive index of the second material layer n[B] meets the relation of n[A]>n[substrate]>n[B]. The substrate is provided with the first material layer and the second material layer which are provided with the first contact surface and the second contact surface respectively, the vertical sections of the first contact surface and the second contact surface are in a mutually-nested regular zigzag form, and the relation of n[A]>n[substrate]>n[B] is defined, so that emission of light from the side surface of the OLED luminescent device is reduced, the light emission amount of the luminescent surface of the OLED luminescent device is increased, and the light out-coupling efficiency of the OLED luminescent device is improved.