A radiation curable ink composition includes a first 2,2,6,6-tetramethylpiperidinyl compound. The first 2,2,6,6-tetramethylpiperidinyl compound is present in the radiation curable ink composition at a concentration above 0.5 wt %. A hindered amine group of the first 2,2,6,6-tetramethylpiperidinyl compound is substituted with only carbon or hydrogen and is a solid at 20 degrees centigrade and does not include carbon to carbon double bonds.

A radiation curable ink composition includes a first 2,2,6,6-tetramethylpiperidinyl compound. The first 2,2,6,6-tetramethylpiperidinyl compound is present in the radiation curable ink composition at a concentration above 0.5 wt %. A hindered amine group of the first 2,2,6,6-tetramethylpiperidinyl compound is substituted with only carbon or hydrogen and is a solid at 20 degrees centigrade and does not include carbon to carbon double bonds.

The disclosed embodiments relate to an ink composition for reflective sheet capable of preventing a luminance difference occurring at an upper or lower end of a display panel and display apparatus including the same and method of manufacturing the display apparatus. The display apparatus of the disclosed embodiment comprises a display panel to display an image, a light source configured to supply light to the display panel, a light guide plate configured to guide light emitted from the light source, a reflective sheet movable between a first state close to the lower surface of the light guide plate and a second state farther away from the lower surface of the light guide plate than the first state, and a reflective pattern provided on the reflective sheet and configured to be disposed in contact with the light guide plate in the first state, wherein the reflective pattern on the reflective sheet is formed of an acrylate resin including a multi-functional acrylate monomer.

The disclosed embodiments relate to an ink composition for reflective sheet capable of preventing a luminance difference occurring at an upper or lower end of a display panel and display apparatus including the same and method of manufacturing the display apparatus. The display apparatus of the disclosed embodiment comprises a display panel to display an image, a light source configured to supply light to the display panel, a light guide plate configured to guide light emitted from the light source, a reflective sheet movable between a first state close to the lower surface of the light guide plate and a second state farther away from the lower surface of the light guide plate than the first state, and a reflective pattern provided on the reflective sheet and configured to be disposed in contact with the light guide plate in the first state, wherein the reflective pattern on the reflective sheet is formed of an acrylate resin including a multi-functional acrylate monomer.

Energy curable composition including partially acrylated polyols, and one or more monofunctional or multifunctional free-radically polymerizable ethylenically unsaturated monomer and/or oligomers.

Energy curable composition including partially acrylated polyols, and one or more monofunctional or multifunctional free-radically polymerizable ethylenically unsaturated monomer and/or oligomers.

Methods for making pigmented, curable, liquid ink compositions, and the ink compositions prepared from the methods are disclosed. The method includes adding at least one monomer and a dispersant to mixing vessel, and metering into the mixing vessel at least one pigment over a period of time. The method further includes adding at least one initiator and at least one curing agent, and then milling the composition. The pigmented, curable, high viscosity liquid ink compositions are suitable for digital offset printing.

Methods for making pigmented, curable, liquid ink compositions, and the ink compositions prepared from the methods are disclosed. The method includes adding at least one monomer and a dispersant to mixing vessel, and metering into the mixing vessel at least one pigment over a period of time. The method further includes adding at least one initiator and at least one curing agent, and then milling the composition. The pigmented, curable, high viscosity liquid ink compositions are suitable for digital offset printing.

An ultraviolet ray curable ink composition adapted to be ejected by using an ink jet method is provided. The ultraviolet ray curable ink composition includes a polymerizable compound and metal powder. The metal powder is constituted from metal particles subjected to a surface treatment with a fluorine type silane compound and/or a fluorine type phosphoric acid ester as a surface treatment agent. A polymerizable compound includes a monomer having an alicyclic structure. This makes it possible to provide the ultraviolet ray curable ink composition which has excellent storage stability, can provide excellent dispersion stability of the metal particles of the metal powder. A printed object is also provided. Such a printed object is produced by using the ultraviolet ray curable ink composition.

An ultraviolet ray curable ink composition adapted to be ejected by using an ink jet method is provided. The ultraviolet ray curable ink composition includes a polymerizable compound and metal powder. The metal powder is constituted from metal particles subjected to a surface treatment with a fluorine type silane compound and/or a fluorine type phosphoric acid ester as a surface treatment agent. A polymerizable compound includes a monomer having an alicyclic structure. This makes it possible to provide the ultraviolet ray curable ink composition which has excellent storage stability, can provide excellent dispersion stability of the metal particles of the metal powder. A printed object is also provided. Such a printed object is produced by using the ultraviolet ray curable ink composition.