Abstract: A donor substrate includes a base substrate, a light to heat conversion layer, a buffer layer and a transfer layer. The light to heat conversion layer may be disposed on the base substrate. The buffer layer may be disposed on the light to heat conversion layer. The buffer layer may include at least one porous layer having a plurality of pores. The transfer layer may be disposed on the buffer layer.

Abstract: An organic light emitting diode display includes a red pixel, a green pixel, and a blue pixel, each pixel including a pixel electrode, a hole supplementary layer on the pixel electrode, a blue organic emission layer on the hole supplementary layer, a first buffer layer on the blue organic emission layer, an electron supplementary layer on the first buffer layer, and a common electrode on the electron supplementary layer, the red pixel and the green pixel further include a red resonance auxiliary layer and a green resonance auxiliary layer respectively on the first buffer layer, a red organic emission layer and a green organic emission layer respectively on the red resonance auxiliary layer and the green resonance auxiliary layer, and a second buffer layer on the red organic emission layer and the green organic emission layer.

Abstract: A device for manufacturing a donor substrate, the device including a film supply unit for supplying a flexible base film in a supply direction, a film guide unit at a front of the film supply unit in the supply direction for supporting the base film and for guiding the base film in the supply direction, a frame transferring unit at the front of the supply direction and for providing a support frame configured to be coupled to the base film and for transferring the frame while contacting a first side of the base film, and a heating unit facing the frame transferring unit with the base film therebetween for heating and for pressurizing a part of the base film contacting the support frame.

Abstract: An organic light emitting display device may include a first substrate, a first electrode disposed on the first substrate, a pixel defining layer disposed on the first electrode and the first substrate, an organic light emitting structure disposed on the first electrode, a second electrode disposed on the organic light emitting structure and the pixel defining layer, a second substrate disposed on the second electrode, etc. The pixel defining layer may include a fine uneven structure positioned in the display and the non-display regions. The organic light emitting structure may be substantially uniformly formed on the first electrode through the pixel defining layer having the fine uneven structure, so that an organic light emitting display device may exhibit increased lifetime and may show improved image quality.

Abstract: An organic light-emitting device and an organic light-emitting display apparatus including the same are provided. The organic light-emitting device comprises pixels, each pixel comprising three sub-pixels, each sub-pixel comprising a layered structure, the individual layers comprising organic compounds. The layered structure can comprise organic light emission layers, resonance auxiliary layers that provide a thickness allowing the establishment of microcavity effects that increase luminance, and layers that facilitate electron transfer between the electrodes and the organic emission layers, such as doping auxiliary layers, hole injection layers, hole transport layers, electron injection layers and electron transport layers.

Abstract: A donor substrate includes a base substrate, a light to heat conversion layer, a buffer layer and a transfer layer. The light to heat conversion layer may be disposed on the base substrate. The buffer layer may be disposed on the light to heat conversion layer. The buffer layer may include at least one porous layer having a plurality of pores. The transfer layer may be disposed on the buffer layer.

Abstract: An organic light-emitting display apparatus is disclosed.

Abstract: A donor substrate for laser induced thermal imaging and a method of fabricating an organic light emitting diode (OLED) using the donor substrate are disclosed. In one embodiment, the donor substrate includes a base film, a light-to-heat conversion layer formed on the base film, a buffer layer formed on the light-to-heat conversion layer, and a transfer layer formed on the buffer layer. The buffer layer is formed of magnesium (Mg), an Mg alloy, or magnesium oxide. In the donor substrate for laser induced thermal imaging, the buffer layer is formed between the interlayer and the transfer layer or between the light-to-heat conversion layer and the transfer layer, so that surface characteristics between the donor substrate and the transfer layer can be improved.

Abstract: Provided are a donor substrate for laser induced thermal imaging (LITI) and a method of fabricating an organic light emitting diode (OLED) using the same, which can prevent a transferred emission layer from being damaged by heat and thus prevent wrinkles from forming on the surface thereof. The donor substrate includes a base layer, a light-to-heat conversion layer disposed on the base layer, a first transfer layer disposed on the light-to-heat conversion layer and including an organic layer, an inorganic layer, or a double layer thereof, and a second transfer layer disposed on the first transfer layer and including an emission layer. The first transfer layer has an absolute value of lowest unoccupied molecular orbital energy level of 2.6 to 3.0 eV and a band gap energy of 2.8 to 3.4 eV.

Abstract: In a donor film, an organic light emitting diode display manufacturing method using the same, and an organic light emitting diode display manufactured by using the method, the donor film includes a donor substrate and a transfer layer formed on the donor substrate. The donor substrate includes a base film, a light-to-heat conversion (LTHC) layer disposed on the base film, and a curved interlayer film provided on the light-to-heat conversion layer and having a wrinkled side. The transfer layer includes an organic emission layer which is formed so as to be curved along a shape of the wrinkled side of the curved interlayer film.

Abstract: An organic light emitting diode (OLED) display is disclosed. In one embodiment, the OLED display includes i) a plurality of pixels comprising a blue light emitting region, a green light emitting region, and a red light emitting region on a substrate and formed by stacking a lower electrode, an organic layer, and an upper electrode. In one embodiment, the blue and green light emitting regions are formed in a microcavity structure, and the red light emitting region is formed in a non-microcavity structure.

Abstract: A donor substrate includes a base layer, a light to heat conversion layer on the base layer, an interlayer on the light to heat conversion layer, a low molecular weight transfer layer on the interlayer and an organic transfer layer on the low molecular weight transfer layer. The low molecular weight transfer layer includes an element in Group I or a compound of elements in Group I and Group VII.

Abstract: An organic light emitting diode (OLED) display includes a red pixel, a green pixel, and a blue pixel. The red pixel, the green pixel and the blue pixel each includes: a pixel electrode; a hole auxiliary layer on the pixel electrode; a blue organic emission layer on the hole auxiliary layer; an electron auxiliary layer on the blue organic emission layer; and a common electrode on the electron auxiliary layer. The red pixel and the green pixel include: a red boundary layer and a green boundary layer, respectively; a red resonance assistance layer and a green resonance assistance layer, respectively; and a red organic emission layer and a green organic emission layer formed between the red resonance assistance layer and the blue organic emission layer, and between the green resonance assistance layer and the blue organic emission layer, respectively.

Abstract: A donor film and a method of manufacturing an organic light emitting device using the donor film. The donor film having a stack structure includes: a first layer comprising first transfer portions comprising a light emitting material of a first color, and first opening portions; a second layer that is formed on the first layer and comprising second transfer portions corresponding to the first opening portion and further comprising a light emitting material of a second color, and second opening portions; and a third layer that is formed on the second layer and comprising third transfer portions corresponding to the first and second opening portions and further comprising a light emitting material of a third color, and third opening portions.

Abstract: In one aspect, an organic light-emitting display apparatus is provided including a first sub-pixel, a second sub-pixel, and a third sub-pixel that are each a different color, the apparatus including: a substrate; a first electrode disposed on the substrate; a second electrode disposed on the first electrode so as to face the first electrode; an organic emission layer disposed between the first electrode and the second electrode and comprising a first organic emission layer, a second organic emission layer, and a third organic emission layer; a hole transport layer disposed between the first electrode and the organic emission layer; and an electron accepting layer disposed between the first electrode and the second electrode. The organic light-emitting display apparatus has improved image quality and lifetime.

Abstract: An organic light-emitting diode (OLED) having first, second and third sub-pixels of different colors includes: a substrate; first and second electrodes; an organic emission layer (OEL) between the electrodes including a first OEL in the first sub-pixel, a second OEL in the second sub-pixel, and a common third OEL in the first, second and third sub-pixels; a hole transport layer (HTL) between the first electrode and OEL; a hole injection layer (HIL) between the first electrode and HTL; an intermediate layer between the HTL and HIL; a first optical thickness auxiliary layer (OTAL) between the first OEL and third OEL in the first sub-pixel and including a first hole transporting compound and a cyano group-containing compound; and a second OTAL including a second hole transporting compound between the third OEL and HTL in the first sub-pixel, and between the second OEL and HTL in the second sub-pixel.

Abstract: An organic light emitting diode (OLED) display is disclosed. In one embodiment, the OLED display includes i) a plurality of pixels comprising a blue light emitting region, a green light emitting region, and a red light emitting region on a substrate and formed by stacking a lower electrode, an organic layer, and an upper electrode. In one embodiment, the blue and green light emitting regions are formed in a microcavity structure, and the red light emitting region is formed in a non-microcavity structure.

Abstract: An organic light-emitting display apparatus is disclosed.

Abstract: A donor substrate for laser induced thermal imaging and a method of fabricating an organic light emitting diode (OLED) using the donor substrate are disclosed. In one embodiment, the donor substrate includes a base film, a light-to-heat conversion layer formed on the base film, a buffer layer formed on the light-to-heat conversion layer, and a transfer layer formed on the buffer layer. The buffer layer is formed of magnesium (Mg), an Mg alloy, or magnesium oxide. In the donor substrate for laser induced thermal imaging, the buffer layer is formed between the interlayer and the transfer layer or between the light-to-heat conversion layer and the transfer layer, so that surface characteristics between the donor substrate and the transfer layer can be improved.

Abstract: Provided are a donor substrate for laser induced thermal imaging (LITI) and a method of fabricating an organic light emitting diode (OLED) using the same, which can prevent a transferred emission layer from being damaged by heat and thus prevent wrinkles from forming on the surface thereof. The donor substrate includes a base layer, a light-to-heat conversion layer disposed on the base layer, a first transfer layer disposed on the light-to-heat conversion layer and including an organic layer, an inorganic layer, or a double layer thereof, and a second transfer layer disposed on the first transfer layer and including an emission layer. The first transfer layer has an absolute value of lowest unoccupied molecular orbital energy level of 2.6 to 3.0 eV and a band gap energy of 2.8 to 3.4 eV.