Abstract: A method for forming a resist fine pattern uses inkjet printing for printing an ink along a path to form a resist fine pattern on a substrate having the same surface energy. The method includes an ejecting step of simultaneously discharging a photocurable resist ink and a partition-forming ink that are spaced from each other on the front side and the rear side of the path and applying the light energy to the discharged photocurable resist ink. The intensity of light is set so that, as the photocurable resist ink is semi-cured and is ejected on the substrate in a gelatinous state, the ink forms a boundary that is vertical with respect to the partition-forming ink ejected on the substrate and the spreading of the photocurable resist ink is prevented, and the photocurable resist ink is cured after both the photocurable resist ink and the partition-forming ink are completely ejected.

Abstract: A measurement pad includes a pattern part including a plurality of groove portions arranged at pitch intervals corresponding to pitch intervals of a plurality of head nozzles, and a wall portion formed between the groove portions, a first electrode part extending in the longitudinal direction of the groove portions at the center of the groove portions, a second electrode part spaced apart from the first electrode part in the width direction and extending in the longitudinal direction of the groove portions. The length of the groove portions is formed to have a size that can include all heads existing on the same extension line which are measurement targets, and is uniformly formed in the same cross-sectional shape throughout the longitudinal direction of the groove portions.

Abstract: In a method for forming a thick layer of a thickness on a substrate by using an inkjet printing apparatus comprising a head module for ejecting an ink, a dot print layer is formed such that dot-shaped arrays are formed at predetermined intervals in order to prevent ink droplets, which are deposited on the substrate, from pulling each other, ink is ejected in an amount enabling a thick coating of uniform thickness to be overlapped and printed on the dot print layer, thereby forming a thick print layer with the thickness.

Abstract: A 3D printer according to an embodiment includes a liquid material supply unit provided with an ejection hole, for ejecting the liquid material upward, and a storage part, which is connected to the ejection hole and in which the ejected liquid material is stored, a liquid layer-forming unit that moves the liquid material, stored in the storage part, to a work holder, which is a region irradiated with a shaping beam, and forms a liquid layer for 3-dimensional shaping, and a 3-dimensional shaping unit which performs 3-dimensional shaping by irradiating, with the shaping beam, the liquid layer formed on the work holder.

Abstract: An ink drop measurement pad is for measuring volumes and positions of inkjet drops that are sprayed and dropped in a constant volume from nozzles of a head of an inkjet device. The ink drop measurement pad includes a pattern part including a plurality of groove portions arranged at pitch intervals corresponding to those of a plurality of head nozzles and wall portions formed between the groove portions. The groove portions are uniformly formed so as to have the same cross-section throughout an entire longitudinal direction thereof.

Abstract: An inkjet printing method may includes a dot pattern printing process of printing a dot pattern group by discharging ink at a preset position of a surface of an object using a nozzle group for forming a dot pattern so that dropped droplets are not in overlap with each other, a connection pattern printing process of printing a connection pattern group by discharging ink at a position between neighboring patterns using a nozzle group for forming a connection pattern so that the same attractive force acts to the neighboring patterns dropped on the surface of the object, and a finishing printing process of finishing a coating of the surface of the object by discharging ink to an area except for neighboring dropped droplets using a nozzle group for finishing so that the same attractive force act to the dropped droplets that are dropped on the surface of the object.

Abstract: A method for forming a resist fine pattern uses inkjet printing for printing an ink along a path to form a resist fine pattern on a substrate having the same surface energy. The method includes an ejecting step of simultaneously discharging a photocurable resist ink and a partition-forming ink that are spaced from each other on the front side and the rear side of the path and applying the light energy to the discharged photocurable resist ink. The intensity of light is set so that, as the photocurable resist ink is semi-cured and is ejected on the substrate in a gelatinous state, the ink forms a boundary that is vertical with respect to the partition-forming ink ejected on the substrate and the spreading of the photocurable resist ink is prevented, and the photocurable resist ink is cured after both the photocurable resist ink and the partition-forming ink are completely ejected.

Abstract: A method for forming a conductive fine pattern according to an embodiment forms a conductive fine pattern on a substrate having identical surface energy by using inkjet printing for printing ink along a path. The method includes a droplet ejection process of simultaneously performing, discharging photocurable ink at the front side of the path, discharging volatile ink containing minute metal particles at the rear side of the path, and applying light energy to the discharged photocurable ink. The light energy is configured to have a light intensity such that: the photocurable ink is semi-cured and ejected in a gel state on the substrate, and thus forms a boundary with liquid volatile ink ejected on the substrate; and the photocurable ink is completely cured after the ejection of both the photocurable ink and the volatile ink is completed.

Abstract: An inkjet printing method may includes a dot pattern printing process of printing a dot pattern group by discharging ink at a preset position of a surface of an object using a nozzle group for forming a dot pattern so that dropped droplets are not in overlap with each other, a connection pattern printing process of printing a connection pattern group by discharging ink at a position between neighboring patterns using a nozzle group for forming a connection pattern so that the same attractive force acts to the neighboring patterns dropped on the surface of the object, and a finishing printing process of finishing a coating of the surface of the object by discharging ink to an area except for neighboring dropped droplets using a nozzle group for finishing so that the same attractive force act to the dropped droplets that are dropped on the surface of the object.

Abstract: A display apparatus according to an embodiment has improved resolution by realizing a pixel as a rectangular structure to perform four-times greater high resolution pixel printing within a limit of an accuracy and a size of a currently existing ink drop. A display apparatus includes a first light emitting group including four first sub-pixels contained in different pixels to emit the same color light, a second light emitting group including four second sub-pixels contained in different pixels to emit the same color light, a third light emitting group including four third sub-pixels contained in different pixels to emit the same color light, and a fourth light emitting group including four fourth sub-pixels contained in different pixels to emit the same color light, and four of the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel, which are disposed closest to each other, form one pixel.

Abstract: A method for printing a micro line pattern using inkjet printing, includes: a bump forming process for forming a micro bump that sections a predetermined conductive pattern by inkjet-printing a quick drying liquid on a substrate; and a pattern printing process for printing a conductive pattern according to the predetermined conductive pattern by inkjet-printing a conductive liquid on an area sectioned by the micro bump.