Patent application number | Description | Published |
20100055343 | Donor substrate for laser induced thermal imaging and method of fabricating organic light emitting diode using the same - 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. | 03-04-2010 |
20110084286 | DONOR SUBSTRATE AND METHOD OF FABRICATING ORGANIC LIGHT EMITTING DIODE USING THE SAME - 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. | 04-14-2011 |
20110240970 | ORGANIC LIGHT-EMITTING DISPLAY APPARATUS - An organic light-emitting display apparatus is disclosed. The organic light-emitting display apparatus includes a first sub-pixel, a second sub-pixel, and a third sub-pixel, where each of said first, second and third sub-pixels displays a different color, a substrate, a first electrode disposed on the substrate, a second electrode disposed on the first electrode, facing the first electrode, an organic emission layer disposed between the first electrode and the second electrode, including a first organic emission layer, a second organic emission layer, and a third organic emission layer, and an electron acceptor layer disposed between the first electrode and the second electrode configured to contact the organic emission layer, where the first organic emission layer is disposed in the first sub-pixel, the second organic emission layer is disposed in the second sub-pixel, and the third organic emission layer is commonly disposed over the first sub-pixel, the second sub-pixel, and the third sub-pixel, and where the electron acceptor layer is disposed between the first organic emission layer and the third organic emission layer in the first sub-pixel and between the second organic emission layer and the third organic emission layer in the second sub-pixel. | 10-06-2011 |
20120001207 | ORGANIC LIGHT EMITTING DIODE DISPLAY - 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. | 01-05-2012 |
20130001528 | Organic Light-Emitting Diode - 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. | 01-03-2013 |
20130001531 | ORGANIC LIGHT-EMITTING DISPLAY APPARATUS - 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. | 01-03-2013 |
20130043498 | Organic Light Emitting Diode Display and Manufacturing Method Thereof - 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. | 02-21-2013 |
20130175550 | Donor Film, Method for Manufacturing Organic Light Emitting Diode Display Using the Same, and Organic Light Emitting Diode Display Manufactured by Using the Method - 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. | 07-11-2013 |
20130341601 | DONOR SUBSTRATES, LASER INDUCED THERMAL IMAGING METHODS USING DONOR SUBSTRATES AND METHODS OF MANUFACTURING ORGANIC LIGHT EMITTING DISPLAY DEVICES USING DONOR SUBSTRATES - 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. | 12-26-2013 |
20140027732 | ORGANIC LIGHT-EMITTING DEVICE AND ORGANIC LIGHT-EMITTING DISPLAY APPARATUS INCLUDING THE SAME - 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. | 01-30-2014 |
20140042402 | ORGANIC LIGHT EMITTING DISPLAY DEVICES AND METHODS OF MANUFACTURING ORGANIC LIGHT EMITTING DISPLAY DEVICES - 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. | 02-13-2014 |
20140124126 | DEVICE AND METHOD FOR MANUFACTURING DONOR SUBSTRATE - 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. | 05-08-2014 |
20140124758 | ORGANIC LIGHT EMITTING DIODE DISPLAY AND MANUFACTURING METHOD THEREOF - 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. | 05-08-2014 |
20140175391 | ORGANIC LIGHT EMITTING DIODE DISPLAY AND MANUFACTURING METHOD THEREOF - An organic light emitting diode display includes: a substrate; a thin film transistor provided on the substrate; a first electrode connected to the thin film transistor; an organic emission layer provided on the first electrode; an interlayer provided on the organic emission layer; an electron auxiliary layer provided on the interlayer and including an electron injection layer (EIL) and an electron transport layer (ETL); and a second electrode provided on the electron auxiliary layer, wherein the interlayer is made by mixing a material of the electron auxiliary layer. | 06-26-2014 |
20140191209 | ORGANIC LIGHT-EMITTING DEVICE AND OF PREPARING THE SAME - An organic light emitting diode (OLED) and a method of manufacturing the same. An auxiliary layer comprising a high density metallic compound and an emission layer are formed by a laser induced thermal imaging (LITI) process. The LITI process reduces manufacturing costs and time by eliminating the need for a mask patterning process. The metallic compound has a density of 2 g/cm | 07-10-2014 |
20140203256 | ORGANIC LIGHT EMITTING DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME - An organic light emitting display device includes a first electrode, a second electrode facing the first electrode, an organic light emitting layer disposed between the first and second electrodes, a first auxiliary structure and a second auxiliary structure both of which are disposed between the first and second electrodes. The first electrode is disposed on a substrate having a first sub-pixel region, a second sub-pixel region and a third sub-pixel region. The organic light emitting layer includes a first organic light emitting layer, a second organic light emitting layer and a third organic light emitting layer. The first auxiliary structure includes a first doping pattern, a first resonance auxiliary pattern, a second doping pattern and a second resonance auxiliary pattern. The second auxiliary structure includes a third doping pattern, a third resonance auxiliary pattern, a fourth doping pattern and a fourth resonance auxiliary pattern. | 07-24-2014 |
20140217367 | ORGANIC LIGHT EMITTING DEVICE - A full color light emitting device having a reduced driving voltage includes a substrate having a first subpixel, a second subpixel, and a third subpixel. A plurality of first electrodes are in the first subpixel, the second subpixel, and the third subpixel. A second electrode faces the first electrode. An emission layer is between the first electrode and the second electrode. The emission layer includes a first emission layer in the first subpixel for emitting a first color light in the first subpixel, a second emission layer in the first subpixel for emitting a second color light in the second subpixel, and a third emission layer in the first subpixel, the second subpixel and the third subpixel, for emitting a third color light in the third subpixel. The third emission layer includes at least one compound represented by Formula 1: | 08-07-2014 |
20140284566 | ORGANIC LIGHT-EMITTING DEVICE - An organic light-emitting device including a first light-emitting region, a second light-emitting region, and a third light-emitting region. The organic light-emitting device includes a substrate; a first electrode layer on the substrate; a hole injection layer on the first electrode layer; a common emission layer on the hole injection layer; a first resonance assistance layer on the common emission layer in the first light-emitting region and a second resonance assistance layer on the common emission layer in the second light-emitting region. | 09-25-2014 |
20140295085 | METHOD FOR MANUFACTURING DONOR SUBSTRATE - A method for manufacturing a donor substrate according to an exemplary embodiment of the present invention includes: providing a base member; forming a coating layer on one surface of the base member; hardening the coating layer; and detaching the coating layer from the base member. | 10-02-2014 |
20150014642 | DONOR SUBSTRATE AND METHOD FOR MANUFACTURING ORGANIC LIGHT EMITTING DIODE DISPLAY - A donor substrate for a laser transfer includes a base layer, a primer layer disposed on the base layer, a light-to-heat conversion layer disposed on the primer layer, and an intermediate layer disposed on the light-to-heat conversion layer, where the light-to-heat conversion layer includes graphene. | 01-15-2015 |
20150021559 | ORGANIC LIGHT-EMITTING DISPLAY APPARATUS AND METHOD OF MANUFACTURING THE SAME - An organic light-emitting display apparatus includes a display substrate, a display panel on the display substrate and including a pixel region including an organic light-emitting device (OLED), and a non-pixel region, and an encapsulation substrate for encapsulating the display panel, wherein the encapsulation substrate defines at least one groove therein in which a color filer is located. | 01-22-2015 |
20150054426 | ORGANIC LIGHT EMITTING DISPLAY DEVICE AND MEASURING METHOD OF TEMPERATURE USING THE SAME - An organic light emitting display device includes a substrate; a thin film transistor disposed on the substrate; and an organic light emitting component disposed on the substrate and electrically connected to the thin film transistor. The organic light emitting component includes: a first electrode; a second electrode; and an intermediate layer disposed between the first electrode and the second electrode. The organic light emitting display device further includes: a temperature sensing unit disposed on the substrate, the temperature sensing unit being configured to operate differently based on an ambient temperature of the organic light emitting display device; a power driver configured to provide power to the temperature sensing unit; and a voltage control unit configured to: determine a driving voltage of the temperature sensing unit based on the power provided to the temperature sensing unit; and determine the ambient temperature based on the driving voltage. | 02-26-2015 |