Abstract: A method of manufacturing a display device includes preparing a spraying device including a plurality of nozzles, dividing a discharge amount value range between a first reference discharge amount value and a second reference discharge amount value into k areas (k is a natural number), generating nozzle sets by combining n nozzles (n is a natural number) among m nozzles (m is a natural number, m?n) for each of a plurality of nozzle groups, where the nozzle sets have a same discharge amount value as one another or different discharge amount values from one another, and each of the plurality of nozzle groups is defined by the m nozzles among the plurality of nozzles, and deriving an active nozzle group in which the nozzle sets are distributed in a preset manner in the k areas from the plurality of nozzle groups.

Abstract: An inkjet printing method includes forming a sequence of sequence numbers corresponding to a pixel matrix including pixels arranged in X rows and Y columns (where X and Y are respective natural numbers), setting nozzle combinations for the pixels, respectively, according to the sequence, and discharging ink to the pixels using respective combinations of nozzles respectively corresponding to the nozzle combinations for the pixels.

Abstract: A printing device includes: a printer, which to include a plurality of nozzles; a discharge detection sensor configured to detect an amount of ink discharged from the plurality of the nozzles; and a nozzle combination calculator configured to determine a final nozzle combination for each pixel column on a substrate based on discharge rates of the plurality of the nozzles, where the nozzle combination calculator includes: an average value calculator configured to set a usable nozzle group for each pixel column of the substrate among the plurality of the nozzles; and a nozzle combination determiner configured to determine the final nozzle combination corresponding to each pixel column by using a moving average value of nozzle discharge rates of the nozzle group set for each pixel column.

Abstract: An apparatus includes a plurality of head portions which supplies droplets on a processing substrate, and a controller which applies a signal to each of the head portions, where the controller controls each of the head portions to supply the droplets on the processing substrate, where the signal includes a difference between a preset location of a pixel and an actual location of a pixel.

Abstract: An inkjet printing apparatus includes: an inkjet head including nozzles that discharge an ink; and a controller that controls to discharge the ink by the nozzles. The controller includes: a nozzle coordinate analyzer that analyzes coordinates of the nozzles based on a substrate; a nozzle selection probability grantor that assigns a nozzle selection probability the nozzles that how likely the nozzles are selected to discharge the ink; and an ink discharge determinator that determines whether to discharge the ink or not based on the nozzle selection probability.

Abstract: An apparatus includes a plurality of head portions which supplies droplets on a processing substrate, and a controller which applies a signal to each of the head portions, where the controller controls each of the head portions to supply the droplets on the processing substrate, where the signal includes a difference between a preset location of a pixel and an actual location of a pixel.

Abstract: A continuous coating device for continuously conveying a long film includes a coating roll, an imaging device and a coating head. The long film is wound onto the coating roll. The imaging device is configured to capture an image of a mark or a pattern on the long film wound onto the coating roll. The coating head is configured to coat the long film wound onto the coating roll with a specific pattern. The coating head is disposed downstream from the imaging device in a conveyance direction of the long film.

Abstract: An inkjet head maintenance device includes a base, a liquid supplier and a liquid collector. The base has an upper face disposed closely opposite a nozzle face of an inkjet head to form a liquid reservoir space during maintenance of the inkjet head. The base includes a liquid supply hole and a liquid collection hole that open to the upper face. The liquid supplier is configured to supply liquid from the liquid supply hole to the liquid reservoir space. The liquid collector is configured to collect the liquid in the liquid reservoir space from the liquid collection hole.

Abstract: A coating device includes a nozzle, a pressure wave imparting component, and a controller. For each discharge of the coating liquid, the controller causes the pressure wave imparting component to perform a shaking operation that generates a pressure wave in the coating liquid inside the nozzle to an extent that a droplet is not discharged from the nozzle and the coating liquid is shaken in the nozzle, and a discharge operation that generates a pressure wave in the coating liquid inside the nozzle to an extent that a droplet is discharged from the nozzle after the shaking operation. The drive of the pressure wave imparting component in the shaking operation and the drive of the pressure wave imparting component in the discharge operation are kept constant, and a waiting time between the shaking operation and the discharge operation is adjusted.

Abstract: A coating pattern formation method includes adjusting lyophilicity of a pattern region provided on a substrate, and forming a coating pattern having a shape of the pattern region by applying a coating liquid to the pattern region after the adjusting of the lyophilicity of the pattern region. The lyophilicity of the pattern region is adjusted such that the pattern region is divided into a plurality of small pattern regions in at least one division direction, such that adjacent small pattern regions have different lyophilicity, such that a small pattern region spaced away from an end of the pattern region has the lowest lyophilicity among the small pattern regions in the at least one division direction, and such that the lyophilicity of the small pattern regions increases from the small pattern region having the lowest lyophilicity toward the end of the pattern region.

Abstract: An inkjet head maintenance device includes a base, a liquid supplier and a liquid collector. The base has an upper face disposed closely opposite a nozzle face of an inkjet head to form a liquid reservoir space during maintenance of the inkjet head. The base includes a liquid supply hole and a liquid collection hole that open to the upper face. The liquid supplier is configured to supply liquid from the liquid supply hole to the liquid reservoir space. The liquid collector is configured to collect the liquid in the liquid reservoir space from the liquid collection hole.

Abstract: A coating method includes providing a substrate with a pattern region, and coating the pattern region entirely with a coating liquid to form a coating pattern. An area around the pattern region has lower lyophilicity than the pattern region. The pattern region has a lyophobic part whose lyophilicity is lower than that of a portion of the pattern region other than the lyophobic part within the pattern region.

Abstract: A fuel cell has a fuel electrode and an oxidizing agent electrode, a fuel supply path that supplies a liquid fuel to the fuel electrode, an oxidizing agent supply path that supplies an oxidizing agent to the oxidizing agent electrode, and an opening/closing member that, by changing its shape, opens and closes the oxidizing agent supply path. The change in the shape of the opening/closing member regulates the opening and closing of the oxidizing agent supply path.

Abstract: A polymer electrolyte fuel cell which has a polymer electrolyte membrane, an anode disposed on one side of the polymer electrolyte membrane and a cathode disposed on the other side of the polymer electrolyte membrane, wherein an organic fuel is supplied to the anode, and wherein the anode has an anode catalyst layer containing a catalyst and a proton-conducting material, and the cathode has a cathode catalyst layer containing a catalyst, a proton-conducting material and an oxygen-permeating material.

Abstract: A fuel cell has a fuel electrode and an oxidizing agent electrode, a fuel supply path that supplies a liquid fuel to the fuel electrode, an oxidizing agent supply path that supplies an oxidizing agent to the oxidizing agent electrode, and an opening/closing member that, by changing its shape, opens and closes the oxidizing agent supply path. The change in the shape of the opening/closing member regulates the opening and closing of the oxidizing agent supply path.