Patents by Inventor Byeong Wook Yoo
Byeong Wook Yoo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8809842Abstract: 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.Type: GrantFiled: April 2, 2012Date of Patent: August 19, 2014Assignee: Samsung Display Co., Ltd.Inventors: Ha-Jin Song, Sang-Woo Pyo, Byeong-Wook Yoo, Hyo-Yeon Kim, Ji-Young Kwon, Hye-Yeon Shim, Kwan-Hee Lee
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Publication number: 20140217367Abstract: 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.Type: ApplicationFiled: June 19, 2013Publication date: August 7, 2014Applicant: Samsung Display Co., Ltd.Inventors: Ha-Jin Song, Se-Hun Kim, Dae-Yup Shin, Sang-Woo Lee, Sang-Woo Pyo, Byeong-Wook Yoo, Ji-Young Kwon, Bum-Suk Lee, Ji-Myoung Ye, Ji-Hwan Yoon
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Publication number: 20140203256Abstract: 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.Type: ApplicationFiled: December 19, 2013Publication date: July 24, 2014Inventors: Sang-Woo Pyo, Ji-Hwan Yoon, Ha-Jin Song, Byeong-Wook Yoo, Hyo-Yeon Kim
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Publication number: 20140175391Abstract: 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.Type: ApplicationFiled: June 13, 2013Publication date: June 26, 2014Applicant: Samsung Display Co., Ltd.Inventors: Ha-Jin Song, Sang-Woo PYO, Byeong-Wook Yoo, Ji-Young Kwon, Bum-Suk Lee, Ji-Myoung Ye, Ji-Hwan Yoon
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Patent number: 8728704Abstract: 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.Type: GrantFiled: March 15, 2013Date of Patent: May 20, 2014Assignee: Samsung Display Co., Ltd.Inventors: Sang-Woo Pyo, Ha-Jin Song, Byeong-Wook Yoo, Hyo-Yeon Kim, Kwan-Hee Lee
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Publication number: 20140124758Abstract: 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.Type: ApplicationFiled: September 12, 2013Publication date: May 8, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Byeong-Wook YOO, Sang-Woo PYO, Ha-Jin SONG, Hyo-Yeon KIM, Hye-Yeon SHIM, Ji-Young KWON
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Publication number: 20140124126Abstract: 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.Type: ApplicationFiled: June 12, 2013Publication date: May 8, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Hyo-Yeon Kim, Ha-Jin Song, Byeong-Wook Yoo, Sang-Woo Pyo, Kwan-Hee Lee, Hye-Yeon Shim, Ji-Young Kwon
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Publication number: 20140027732Abstract: 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.Type: ApplicationFiled: February 22, 2013Publication date: January 30, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Sang-Woo PYO, Ha-Jin SONG, Byeong-Wook YOO, Hyo-Yeon KIM, Kwan-Hee LEE, Hye-Yeon SHIM, Ji-Young KWON
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Publication number: 20130341601Abstract: 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.Type: ApplicationFiled: March 15, 2013Publication date: December 26, 2013Inventors: Sang-Woo PYO, Ha-Jin SONG, Byeong-Wook YOO, Hyo-Yeon KIM, Kwan-Hee Lee
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Patent number: 8613989Abstract: A laser induced thermal imaging (LITI) apparatus and a method of making an electronic device using the same are disclosed. The LITI apparatus includes a chamber, a substrate support, a contact frame, and a laser source or oscillator. The LITI apparatus transfers a transferable layer from a film donor device onto a surface of an intermediate electronic device. The LITI apparatus uses a magnetic force to provide a close contact between the transferable layer and the surface of the intermediate device. The magnetic force is generated by magnetic materials formed in two components of the LITI apparatus that are spaced apart interposing transferable layer and the surface of the intermediate device. Magnets or magnetic materials are formed in the two following components of the LITI apparatus: 1) the intermediate device and the film donor device; 2) the intermediate device and the contact frame; 3) the substrate support and the film donor device; or 4) the substrate support and the contact frame.Type: GrantFiled: August 28, 2006Date of Patent: December 24, 2013Assignee: Samsung Display Co., Ltd.Inventors: Tae Min Kang, Jin Soo Kim, Mu Hyun Kim, Sun Hoe Kim, Noh Min Kwak, Sang Bong Lee, Seong Taek Lee, Seung Hyun Lee, Sok Won Noh, Jin Wook Seong, Myung Won Song, Yeun Joo Sung, Byeong Wook Yoo
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Publication number: 20130175550Abstract: 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.Type: ApplicationFiled: April 2, 2012Publication date: July 11, 2013Applicant: Samsung Mobile Display Co., Ltd.Inventors: Ha-Jin SONG, Sang-Woo PYO, Byeong-Wook YOO, Hyo-Yeon KIM, Ji-Young KWON, Hye-Yeon SHIM, Kwan-Hee LEE
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Publication number: 20130048959Abstract: 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.Type: ApplicationFiled: July 20, 2012Publication date: February 28, 2013Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.Inventors: Ha-Jin SONG, Sang-Woo Pyo, Byeong-Wook Yoo, Hyo-Yeon Kim, Ji-Young Kwon, Kwan-Hee Lee
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Publication number: 20130043498Abstract: 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.Type: ApplicationFiled: May 1, 2012Publication date: February 21, 2013Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.Inventors: Sang-Woo Pyo, Seung-Mook Lee, Byeong-Wook Yoo, Hyo-Yeon Kim, Myung-Jong Jung, Jin-Woo Park
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Publication number: 20130001528Abstract: 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.Type: ApplicationFiled: February 2, 2012Publication date: January 3, 2013Inventors: Seung-Wook Chang, Young-Hee Lee, Mu-Hyun Kim, Hyo-Yeon Kim, Sang-Woo Pyo, Seung-Mook Lee, Byeong-Wook Yoo
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Patent number: 8330356Abstract: An organic light emitting display device (OLED) suppressing a resonance effect and having an enhanced luminance, and a method of fabricating the same, are disclosed. One embodiment of the OLED includes: a substrate; a first electrode disposed over the substrate and having a reflective layer; an organic layer disposed over the first electrode and having a white emission layer; a second electrode disposed over the organic layer; and a transmittance controlled layer (TCL) disposed over the second electrode and having an optical path length of about 260 to about 1520 ?.Type: GrantFiled: November 19, 2010Date of Patent: December 11, 2012Assignee: Samsung Display Co., Ltd.Inventors: Hee-Seong Jeong, Sam-Il Kho, Byeong-Wook Yoo, Seong-Taek Lee, Jun-Sik Oh, Gun-Shik Kim
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Patent number: 8268657Abstract: A laser induced thermal imaging (LITI) apparatus and a method of making an electronic device using the same are disclosed. The LITI apparatus includes a chamber, a substrate support, a contact frame, and a laser source or oscillator. The LITI apparatus transfers a transferable layer from a film donor device onto a surface of an intermediate electronic device. The LITI apparatus uses a magnetic force to provide a close contact between the transferable layer and the surface of the intermediate device. The magnetic force is generated by magnetic materials formed in two components of the LITI apparatus that are spaced apart interposing transferable layer and the surface of the intermediate device. Magnets or magnetic materials are formed in the two following components of the LITI apparatus: 1) the intermediate device and the film donor device; 2) the intermediate device and the contact frame; 3) the substrate support and the film donor device; or 4) the substrate support and the contact frame.Type: GrantFiled: August 28, 2006Date of Patent: September 18, 2012Assignee: Samsung Mobile Display Co., Ltd.Inventors: Tae Min Kang, Jin Soo Kim, Mu Hyun Kim, Sun Hoe Kim, Noh Min Kwak, Sang Bong Lee, Seong Taek Lee, Seung Hyun Lee, Sok Won Noh, Jin Wook Seong, Myung Won Song, Yeun Joo Sung, Byeong Wook Yoo
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Patent number: 8188649Abstract: An organic light emitting diode (OLED) display device includes a substrate, a first electrode disposed on the substrate, an organic layer including an emission layer disposed on the first electrode, and a second electrode including stacked layers of Yb and Ag on the organic layer. A method of fabricating the organic light emitting diode (OLED) display device includes providing a substrate, forming a first electrode on the substrate, forming an organic layer including an emission layer on the first electrode, and forming a second electrode including stacked layers of Yb and Ag on the organic layer.Type: GrantFiled: December 28, 2007Date of Patent: May 29, 2012Assignee: Samsung Mobile Display Co., Ltd.Inventors: Yeun-Joo Sung, Sam-Il Kho, Byeong-Wook Yoo
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Patent number: 8087964Abstract: A method of fabricating an Organic Light Emitting Diode (OLED) includes: forming red, green, blue and white pixel regions on a substrate; forming first electrodes in the respective pixel regions on the substrate, the first electrodes being spaced apart from one another; forming a pixel defining layer having an opening partially exposing surfaces of the first pixel electrodes on the substrate; forming organic layers including at least an organic EMission Layer (EML) in the opening of the pixel defining layer; forming a second electrode on the organic layers; forming a passivation layer on the second electrode; and forming red, green and blue color filter layers on the passivation layer using a laser induced thermal imaging method to correspond to the organic layers of the red, green and blue pixel regions, the red, green and blue color filter layers being sequentially formed and ends of a first-formed color filter layer overlapping second and third formed color filter layers.Type: GrantFiled: November 14, 2006Date of Patent: January 3, 2012Assignee: Samsung Mobile Display Co., Ltd.Inventors: Nam-Choul Yang, Sam-Il Kho, Byeong-Wook Yoo
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Patent number: 7955709Abstract: An organic light emitting display device and a method of fabricating the same, in which a resonance effect is suppressed and transmittance is substantially the same in a wavelength band of visible light. The organic light emitting display device includes: a substrate; a first electrode disposed on the substrate and including a reflection layer; an organic layer disposed on the first electrode and including a white emission layer; a second electrode disposed on the organic layer; a transmittance controlled layer disposed on the second electrode; and a metal layer disposed on the transmittance controlled layer.Type: GrantFiled: November 8, 2007Date of Patent: June 7, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Hee-Seong Jeong, Sam-Il Kho, Byeong-Wook Yoo, Seong-Taek Lee, Jun-Sik Oh, Gun-Shik Kim
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Publication number: 20110062427Abstract: An organic light emitting display device (OLED) suppressing a resonance effect and having an enhanced luminance, and a method of fabricating the same, are disclosed. One embodiment of the OLED includes: a substrate; a first electrode disposed over the substrate and having a reflective layer; an organic layer disposed over the first electrode and having a white emission layer; a second electrode disposed over the organic layer; and a transmittance controlled layer (TCL) disposed over the second electrode and having an optical path length of about 260 to about 1520 ?.Type: ApplicationFiled: November 19, 2010Publication date: March 17, 2011Applicant: Samsung Mobile Display Co., Ltd.Inventors: Hee-Seong Jeong, Sam-II Kho, Byeong-Wook Yoo, Seong-Taek Lee, Jun-Sik Oh, Gun-Shik Kim