Abstract: Provided is a pixel defining layer to not only ensure vivid colors but also increase display reliability and lifespan by implementing a colored pattern with a low amount of outgas on an electrode substrate by using a leveling agent that does not contain fluorine, rather than a conventional fluorine-based additive, wherein if the amount of outgas in the panel after post-heat treatment is 40 ppm or more, it may cause a decrease in luminance and a de-crease in lifespan due to pixel shrinkage, and if the contact angle with water is 100 degrees (°) or more, peeling of the deposit may occur while the surface energy is lowered.

Abstract: An object of the present disclosure is to improve display reliability and lifetime as well as vivid colors. When there remain residues in the washing part due to incomplete removal during the developing step, it can cause dark spots or pixel off due to the residues, and thus residue-free pixels can be formed by optimizing the temperature and time for developing. Additionally, when the amount of outgas in the panel after post-baking is 15 ppm or more, it may cause a reduction in luminance and lifetime due to pixel shrinkage. Therefore, in order to minimize the amount of outgas after completion of the post-baking process, the generation of outgas in the panel state can be minimized by generating sufficient fume in the post-baking step, in addition to forming clean pixels in the developing step.

Abstract: Provided are a method for preparing a pixel defining layer comprising applying and coating, pre-baking, exposing to light, developing, and post-baking of a photosensitive composition containing a colorant having a pigment with an average particle size of 100 nm or less, wherein the coated film generated after the post-baking has an optical density of 0.8/?m to 2.0/?m, a roughness of 3.0 nm or less, and no residue; and an organic light emitting display device comprising the pixel defining layer obtained by the method which has improved display reliability and lifetime as well as vivid colors.

Abstract: An object of the present disclosure is to improve display reliability and lifetime as well as vivid colors. When there remain residues in the washing part due to incomplete removal during the developing step, it can cause dark spots or pixel off due to the residues, and thus residue-free pixels can be formed by optimizing the temperature and time for developing. Additionally, when the amount of outgas in the panel after post-baking is 15 ppm or more, it may cause a reduction in luminance and lifetime due to pixel shrinkage. Therefore, in order to minimize the amount of outgas after completion of the post-baking process, the generation of outgas in the panel state can be minimized by generating sufficient fume in the post-baking step, in addition to forming clean pixels in the developing step.

Abstract: Provided are a method for preparing a pixel defining layer comprising applying and coating, pre-baking, exposing to light, developing, and post-baking of a photosensitive composition containing a colorant having a pigment with an average particle size of 100 nm or less, wherein the coated film generated after the post-baking has an optical density of 0.8/?m to 2.0/?m, a roughness of 3.0 nm or less, and no residue; and an organic light emitting display device comprising the pixel defining layer obtained by the method which has improved display reliability and lifetime as well as vivid colors.

Abstract: Provided is an encapsulating composition for an organic light emitting diode, which includes a photoinitiator; a first photocurable monomer; and a second photocurable monomer, wherein the first and the second photocurable monomers do not include silicone or aromatic hydrocarbon, and an encapsulating composition having low permittivity and high film hardness suitable for an ink-jetting process is prepared, thereby providing a display device having a high sensitivity touch sensor.

Abstract: Provided is a display having vivid colors, improved reliability, and lifespan by implementing a colored pattern having high optical density on an electrode substrate, wherein the optical density after completion of post-baking treatment process is increased using a colorant, a pigment dispersion having a size of 100 nm or less is used to reduce roughness, the pixel separation layer enables implementation of a flexible display and reduces the thickness and weight of the display, the visibility can be increased by blocking and absorbing external reflected light, and the hardness and modulus can be improved to the level of conventional pixel separation layers, thereby capable of implementing a display that does not generate cracks even when subjected to external impact, and a colored pattern with high optical density is realized on an electrode substrate, improving not only the vividness of the color but also impact resistance, reliability, and lifespan of the display.

Abstract: Provided is a method for ensuring vivid colors and increasing display reliability and lifespan by implementing a colored pattern with high optical density on an electrode substrate, where the method uses a pigment dispersion in which a pigment having a size of 100 nm or less is used in order to increase the optical density and reduce roughness after completing the post-heat treatment process by including a colorant according to the present disclosure, and the method can minimize the reduction in the lifespan due to moisture in the panel state by minimizing the moisture content after completing the post-heat treatment process.

Abstract: Provided is a photosensitive composition including a polybenzoxazole or polyimide-based polymer, a photosensitizer, a silane-based additive, and a solvent, wherein a monomer capable of increasing mechanical properties is introduced into the components of benzoxazole-based copolymer resin, and has an effect of increasing the mechanical properties and adhesion to the base of a pattern manufactured from.

Abstract: An object of the present disclosure is to implement a coloring pattern with a high optical density on an electrode substrate to improve display reliability and lifetime as well as vivid colors as a display with high resolution. That is, the pixel having a size within the range according to the present disclosure can implement high resolution of a Black PDL and can manufacture a display with high luminance and long lifetime according to driving voltage and current.

Abstract: Provided are a method for preparing a pixel defining layer comprising applying and coating, pre-baking, exposing to light, developing, and post-baking of a photosensitive composition containing a colorant having a pigment with an average particle size of 100 nm or less, wherein the coated film generated after the post-baking has an optical density of 0.8/?m to 2.0/?m, a roughness of 3.0 nm or less, and no residue; and an organic light emitting display device comprising the pixel defining layer obtained by the method which has improved display reliability and lifetime as well as vivid colors.

Abstract: An object of the present disclosure is to improve display reliability and lifetime as well as vivid colors. When there remain residues in the washing part due to incomplete removal during the developing step, it can cause dark spots or pixel off due to the residues, and thus residue-free pixels can be formed by optimizing the temperature and time for developing. Additionally, when the amount of outgas in the panel after post-baking is 15 ppm or more, it may cause a reduction in luminance and lifetime due to pixel shrinkage. Therefore, in order to minimize the amount of outgas after completion of the post-baking process, the generation of outgas in the panel state can be minimized by generating sufficient fume in the post-baking step, in addition to forming clean pixels in the developing step.