Abstract: A crucible to evaporate a material is described. The crucible includes a first material compartment configured to contain material to be evaporated, a first heater to heat the first material compartment, a second material compartment configured to contain material to be evaporated, and a second heater to heat the second material compartment. A vapor guiding compartment is provided. The vapor guiding compartment has a first opening providing a first fluid communication path between the first material compartment and the vapor guiding compartment and has a second opening providing a second fluid communication path between the second material compartment and the vapor guiding compartment. Further, the vapor guiding compartment has a third opening connectable to a vapor distributor. The crucible further includes a third heater to heat the vapor guiding compartment.

Abstract: Embodiments described herein relate to a device including a substrate, a plurality of adjacent pixel-defining layer (PDL) structures disposed over the substrate, and a plurality of sub-pixels. Each sub-pixel includes adjacent first overhangs, adjacent second overhangs, an anode, a hole injection layer (HIL) material, an additional organic light emitting diode (OLED) material, and a cathode. Each first overhang is defined by a body structure disposed on and extending laterally past a base structure disposed on the PDL structure. Each second overhang is defined by a top structure disposed on and extending laterally past the body structure. The HIL material is disposed over and in contact with the anode and disposed under the adjacent first overhangs. The additional OLED material is disposed on the HIL material and extends under the first overhang.

Abstract: The present disclosure provides a method for cleaning a vacuum system used in the manufacture of OLED devices. The method includes performing pre-cleaning for cleaning at least a portion of the vacuum system, and performing plasma cleaning using a remote plasma source.

Abstract: The present disclosure provides a method for cleaning a vacuum system used in the manufacture of OLED devices. The method includes performing pre-cleaning for cleaning at least a portion of the vacuum system, and performing plasma cleaning using a remote plasma source.

Abstract: Embodiments described herein relate to a device including a substrate, a plurality of adjacent pixel-defining layer (PDL) structures disposed over the substrate, and a plurality of sub-pixels. Each sub-pixel includes adjacent first overhangs, adjacent second overhangs, an anode, a hole injection layer (HIL) material, an additional organic light emitting diode (OLED) material, and a cathode. Each first overhang is defined by a body structure disposed over and extending laterally past a base structure disposed over the PDL structure. Each second overhang is defined by a top structure disposed over and extending laterally past the body structure. The HIL material is disposed over and in contact with the anode and disposed under the adjacent first overhangs. The additional OLED material is disposed over the HIL material and extends under the first overhang.

Abstract: The present disclosure provides a method for cleaning a vacuum system used in the manufacture of OLED devices. The method includes performing pre-cleaning for cleaning at least a portion of the vacuum system, and performing plasma cleaning using a remote plasma source.

Abstract: An organic electroluminescent element includes an optically transparent electrode, a counter electrode, an emission layer, an auxiliary reflective layer and a diffusion-preventing layer. The counter electrode is paired with the optically transparent electrode and formed of Ag or an alloy containing Ag and has light reflectivity. The emission layer is disposed between the optically transparent electrode and the counter electrode. The auxiliary reflective layer is disposed on an opposite side of the counter electrode from the emission layer. The diffusion-preventing layer is disposed between the counter electrode and the auxiliary reflective layer whose components are prevented from diffusing and moving therebetween.

Abstract: An organic electroluminescent element includes an optically transparent electrode, a counter electrode, an emission layer, an auxiliary reflective layer and a diffusion-preventing layer. The counter electrode is paired with the optically transparent electrode and formed of Ag or an alloy containing Ag and has light reflectivity. The emission layer is disposed between the optically transparent electrode and the counter electrode. The auxiliary reflective layer is disposed on an opposite side of the counter electrode from the emission layer. The diffusion-preventing layer is disposed between the counter electrode and the auxiliary reflective layer whose components are prevented from diffusing and moving therebetween.

Abstract: The disclosure relates to an organic electroluminescence element including: a first substrate on a light extraction side thereof; a second substrate opposite the first substrate; and an organic light-emitting laminate between the first substrate and the second substrate. The first substrate includes a doped region in a surface close to the organic light-emitting laminate, the doped region being doped with a dopant for causing change in a refractive index of the first substrate to enhance a light-outcoupling efficiency.

Abstract: The present invention provides a vacuum deposition device that can improve the measurement accuracy of the thickness of the deposition film. The vacuum deposition device includes, in a vacuum chamber, a plurality of evaporation sections, a deposition target, a tubular body surrounding a space between the plurality of evaporation sections and the deposition target, and a film thickness meter. Deposition material vaporized from the plurality of evaporation sections passes through tubular body, reaches a surface of the deposition target, and is deposited on surface. Between film thickness meter and at least one of the evaporation sections, a guide tube is disposed which guides deposition material vaporized from the evaporation section to film thickness meter. An opening surface of the guide tube on the evaporation section side is disposed at substantially the same level as that of the opening surface of the evaporation section or inside the evaporation section.