Abstract: A quantum dot including a core that includes a first semiconductor nanocrystal including zinc and selenium, and optionally sulfur and/or tellurium, and a shell that includes a second semiconductor nanocrystal including zinc, and at least one of sulfur or selenium is disclosed. The quantum dot has an average particle diameter of greater than or equal to about 13 nm, an emission peak wavelength in a range of about 440 nm to about 470 nm, and a full width at half maximum (FWHM) of an emission wavelength of less than about 25 nm. A method for preparing the quantum dot, a quantum dot-polymer composite including the quantum dot, and an electronic device including the quantum dot is also disclosed.

Abstract: An apparatus and method for treating a substrate are provided. The apparatus includes at least one first process chamber configured to supply a developer onto the substrate; at least one second process chamber configured to treat the substrate using a supercritical fluid; a transfer chamber configured to transfer the substrate from the at least one first process chamber to the at least one second process chamber, while the developer supplied in the at least one first process chamber remains on the substrate; and a temperature and humidity control system configured to manage temperature and humidity of the transfer chamber by supplying a first gas of constant temperature and humidity into the transfer chamber.

Abstract: An organic light emitting display device includes a substrate, a display element on the substrate, and an encapsulation member on the substrate. The encapsulation member encapsulates the display element. The encapsulation member includes a plurality of organic layers and a plurality of inorganic layers. Each inorganic layer includes a plurality of inorganic blocks that are separate from each other. The inorganic layers are between the organic layers.

Abstract: An organic light emitting display device includes a substrate, a display element on the substrate, and an encapsulation member on the substrate. The encapsulation member encapsulates the display element. The encapsulation member includes a plurality of organic layers and a plurality of inorganic layers. Each inorganic layer includes a plurality of inorganic blocks that are separate from each other. The inorganic layers are between the organic layers.

Abstract: An organic light emitting display includes pixels positioned at intersections of scan lines, emission control lines, control lines, and data lines, wherein gate voltages of driving transistors of the pixels are initialized by a first or second initialization power supply and an initialization power supply generating unit for supplying the first initialization power supply to pixels positioned in odd horizontal lines via a first power supply line and for supplying the second initialization power supply to pixels positioned in even horizontal lines via a second power supply line. The first initialization power supply and the second initialization power supply repeat a high voltage and a low voltage with different phases.