Abstract: An inkjet printing apparatus, method of printing ink using the same and method of fabricating display device are provided. The method of printing ink includes: ejecting ink in which a plurality of particles is dispersed from an inkjet head; irradiating the ejected ink with a first light and a second light having different wavelengths to acquire data on a first exit light and a second exit light emitted from the ink; calculating a concentration of the particles in the ink from the data on the first exit light and the second exit light; and checking whether the concentration is out of an error range from a reference value, where the first light has a wavelength of about 500 nm or less, and the second light has a wavelength of about 1000 nm or more.

Abstract: An embodiment of the present invention provides an inkjet head including: a head body having a storage chamber capable of storing ink; a first inlet pipe and a second inlet pipe connected to the head body and which extend in first different directions and inject the ink in the first different directions; a first outlet pipe and a second outlet pipe connected to the head body and which extend in second different directions and eject the ink in the second different directions; and a nozzle plate positioned under the head body and which includes a plurality of nozzles.

Abstract: A display device and a manufacturing method thereof are provided. The display device includes a first substrate; a first color filter, a second color filter, and a third color filter that are on the first substrate; a plurality of roof layers that cover spaces that overlap the first color filter, the second color filter, and the third color filter, respectively; a first color conversion layer that is positioned in a space overlapping the first color filter; a second color conversion layer that is positioned in a space overlapping the second color filter; a transmissive layer that is positioned in a space overlapping the third color filter; and a capping layer that is positioned on the plurality of roof layers.

Abstract: A method for inkjet printing includes setting a target volume and a target concentration of ink discharged to a pixel, measuring a volume and a concentration of a liquid drop for each of nozzles, selecting first nozzle groups for achieving the target volume, from a volume pool of the liquid drop for each of the nozzles, selecting second nozzle groups for achieving the target concentration, from the first nozzle groups, selecting recipes by combining brightness trend lines, from the second nozzle groups, performing a printing simulation for each of the recipes to select a final recipe, and performing inkjet printing by using the final recipe.

Abstract: An inkjet printing apparatus, method of printing ink using the same and method of fabricating display device are provided. The method of printing ink includes: ejecting ink in which a plurality of particles is dispersed from an inkjet head; irradiating the ejected ink with a first light and a second light having different wavelengths to acquire data on a first exit light and a second exit light emitted from the ink; calculating a concentration of the particles in the ink from the data on the first exit light and the second exit light; and checking whether the concentration is out of an error range from a reference value, where the first light has a wavelength of about 500 nm or less, and the second light has a wavelength of about 1000 nm or more.

Abstract: A display device may include a display panel, and first member, and a second member. The display panel has a first section and a second section. The first member includes an electromagnet, extends parallel to the first section and has a first side and a second side. The first side is oriented a first obtuse angle with respect to the second side. The second member directly contacts the first member, extends parallel to the second section, and has a third side and a fourth side. The third side is oriented a second obtuse angle with respect to the fourth side. The first member is connected through the second member to the second section. The second member is connected through the first member to the first section.

Abstract: A display device may include a display panel, and first member, and a second member. The display panel has a first section and a second section. The first member includes an electromagnet, extends parallel to the first section and has a first side and a second side. The first side is oriented a first obtuse angle with respect to the second side. The second member directly contacts the first member, extends parallel to the second section, and has a third side and a fourth side. The third side is oriented a second obtuse angle with respect to the fourth side. The first member is connected through the second member to the second section. The second member is connected through the first member to the first section.

Abstract: A slot die coater planarizing an upper surface of an encapsulation layer and a coating method using the same. The slot die coater includes a slit nozzle configured to supply a coating solution. The slit nozzle includes a hole vertically penetrating a center portion thereof, a first bottom surface disposed at a movement direction side of the slit nozzle with reference to the hole, and a second bottom surface disposed at an opposite direction side of the movement direction of the slit nozzle with reference to the hole. A width of the first bottom surface is different from the width of the second bottom surface.

Abstract: A display device includes: a display part including a plurality of pixel areas formed on a substrate; and a non-display part positioned outside and proximate to the display part. The display part includes: a pixel electrode formed in at least one of the pixel areas; a roof layer formed on the pixel electrode so as to be spaced apart from the pixel electrode with a cavity interposed therebetween; a liquid crystal positioned within the cavity; an injection hole formed in the roof layer; and an overcoat formed on the roof layer so as to cover the injection hole and seal the cavity. The non-display part includes a step compensation part configured to compensate for a difference in elevation between an upper surface of the display part and an upper surface of the non-display part, the step compensation part including a material of the roof layer.

Abstract: A slot die coater planarizing an upper surface of an encapsulation layer and a coating method using the same. The slot die coater includes a slit nozzle configured to supply a coating solution. The slit nozzle includes a hole vertically penetrating a center portion thereof, a first bottom surface disposed at a movement direction side of the slit nozzle with reference to the hole, and a second bottom surface disposed at an opposite direction side of the movement direction of the slit nozzle with reference to the hole. A width of the first bottom surface is different from the width of the second bottom surface.

Abstract: The present invention relates to a slot die coater preventing contamination of another layer contacting a coating layer, and a coating method using the same. The slot die coater according to an exemplary embodiment of the present invention includes a slit nozzle configured to deposit a photo-curable material upon a substrate, and an exposure unit coupled to the slit nozzle and positioned adjacent thereto, the exposure unit configured to irradiate light upon the photo-curable material deposited upon the substrate.

Abstract: A liquid crystal display is provided. The liquid crystal display according to an exemplary embodiment of the inventive concept includes: a substrate; a thin film transistor disposed on the substrate; a pixel electrode connected to the thin film transistor; a roof layer facing the pixel electrode; an adhesive layer disposed on the roof layer; and a capping layer disposed on the adhesive layer, wherein a plurality of microcavities are formed between the pixel electrode and the roof layer, and the microcavity forms a liquid crystal layer including a liquid crystal material.

Abstract: In an aspect, a liquid crystal display is provided. The liquid crystal display may include a substrate, a thin film transistor disposed on the substrate, a pixel electrode connected to one terminal of the thin film transistor, a roof layer disposed to face the pixel electrode, and a capping layer disposed on the roof layer, in which a microcavity having a liquid crystal injection hole is formed between the pixel electrode and the roof layer, the microcavity forms a liquid crystal layer including a liquid crystal molecule, and the capping layer covers the liquid crystal injection hole and includes a water-soluble polymer material.

Abstract: Provided are a liquid crystal display including a liquid crystal display panel comprising a first substrate and a liquid crystal layer, an upper polarizer disposed on the liquid crystal display, a lower polarizer disposed under the liquid crystal display, and a first phase delay layer located on the liquid crystal display panel, configured to compensate for a phase delay value in a thickness direction and comprising parylene.

Abstract: A reactive mesogen compound, a liquid crystal composition including the reactive mesogen compound, a method of manufacturing a display panel, and a display panel are disclosed. The reactive mesogen compound may be activated by light having a wavelength between about 300 nm and about 700 nm.