Patents by Inventor Si-Duk Sung
Si-Duk Sung 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: 7948161Abstract: A display device includes an insulating substrate having an upper surface and a lower surface opposing the upper surface, a display element including a first electrode, an organic light emitting layer on the first electrode, and a second electrode on the organic light emitting layer, a first film connected to a first side of the upper surface, and a first circuit substrate connected to the first film and including a first surface facing the display element, a second surface opposing the first surface, and an electric element protruding from the second surface.Type: GrantFiled: March 8, 2010Date of Patent: May 24, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Si-Duk Sung, Byung-Sik Koh
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Patent number: 7884540Abstract: An organic light emitting diode display includes a display panel having a display area with a plurality of thin film transistors and a peripheral area provided along a circumference of the display area, an emission layer formed within the display area, a driver formed in the peripheral area which applies display signals including gate signals and data signals to the thin film transistors, a driving voltage pad formed in the peripheral area which applies a driving voltage to the display area, a common voltage pad formed in the peripheral area which applies a common voltage to the display area, a main connector connected to an external voltage source, and a flexible conductive film including a conductive layer electrically connecting between at least one of the driving voltage pad and the common voltage pad and the main connector. The organic light emitting diode display facilitates modulation due to a simple structure, and improves a voltage drop phenomenon.Type: GrantFiled: June 12, 2007Date of Patent: February 8, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Si-Duk Sung, Byung-Sik Koh
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Patent number: 7843520Abstract: A display apparatus includes a plurality of pixel regions. Each of the pixel regions includes a first sub-pixel region, a second sub-pixel region and a boost capacitor. The first sub-pixel region and the second sub-pixel region are electrically connected to the boost capacitor. The boost capacitor causes voltages the first and second sub-pixel regions to be at different voltages to increase the viewing angle of the display apparatus. One electrode of the boost capacitor, a coupling electrode, is formed over a storage capacitance line made of an opaque metal such that an additional boost capacitor (Cboost) may be formed without decreasing the aperture ratio of the pixel region. Other features are also provided.Type: GrantFiled: November 20, 2008Date of Patent: November 30, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Jiangang Lu, Sung-Woon Kim, Seung-Hoon Lee, Hee-Seop Kim, Chun-Seok Ko, Mee-Hye Jung, Si-Duk Sung, Kwang-Chul Jung
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Publication number: 20100164363Abstract: A display device includes an insulating substrate having an upper surface and a lower surface opposing the upper surface, a display element including a first electrode, an organic light emitting layer on the first electrode, and a second electrode on the organic light emitting layer, a first film connected to a first side of the upper surface, and a first circuit substrate connected to the first film and including a first surface facing the display element, a second surface opposing the first surface, and an electric element protruding from the second surface.Type: ApplicationFiled: March 8, 2010Publication date: July 1, 2010Applicant: Samsung Electronics Co., Ltd.Inventors: Si-Duk SUNG, Byung-Sik Koh
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Patent number: 7742025Abstract: A display apparatus includes a plurality of pixels arranged in a matrix. Each pixel includes a light emitting device, a driving transistor for supplying a driving current to the light emitting device, a first switching transistor coupled with the control terminal of the driving transistor to transmit a data voltage, and a second switching transistor coupled with the control terminal of the driving transistor to transmit a reverse voltage. The first and second switching transistors are alternately coupled with scanning lines driven by one of two scanning drivers, and are alternately turned on at different times. The display apparatus periodically applies the reverse voltage to the driving transistors to turn off the diving transistors and to compensate for variation of the threshold voltage of the driving transistors.Type: GrantFiled: September 26, 2006Date of Patent: June 22, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Si-Duk Sung, Kyong-Tae Park, Nam-Deog Kim, Chun-Seok Ko
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Patent number: 7705530Abstract: A display device has an insulating substrate with a first surface and a second surface, a display element having an organic light-emitting layer arranged between two electrodes, a flexible member having a first end connected to the first surface and a second end facing the first end and the first surface, and a first accommodating member having a lower surface substantially parallel with the insulating substrate, a lateral surface extending from the lower surface, and a protruding part extending from the lower surface toward the first end. The first accommodating member includes a through hole, and the flexible member extends through the through hole so the second end is positioned outside the first accommodating member. The insulating substrate is arranged in the first accommodating member, and the protruding part may contact and press against the first end connected to the insulating substrate.Type: GrantFiled: June 20, 2007Date of Patent: April 27, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Si-Duk Sung, Chun-Seok Ko
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Patent number: 7692372Abstract: A display device includes an insulating substrate having an upper surface and a lower surface opposing the upper surface, a display element including a first electrode, an organic light emitting layer on the first electrode, and a second electrode on the organic light emitting layer, a first film connected to a first side of the upper surface, and a first circuit substrate connected to the first film and including a first surface facing the display element, a second surface opposing the first surface, and an electric element protruding from the second surface.Type: GrantFiled: May 30, 2007Date of Patent: April 6, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Si-Duk Sung, Byung-Sik Koh
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Publication number: 20100060554Abstract: In a display apparatus and a driving method thereof, image data corresponding to plural different positions of a display panel are added to each other, and a sum of the image data of a present frame is compared with a sum of the image data of a previous frame to determine whether an image displayed on the display panel is a still image or not. While a still image is displayed, brightness of the display panel is gradually lowered. Accordingly, the display panel may prevent occurrence of afterimages and deterioration of organic electroluminescent light emitting devices, as well as reduce power consumption.Type: ApplicationFiled: March 17, 2009Publication date: March 11, 2010Inventors: Byung-Sik KOH, Si-Duk SUNG, Kwang-Sub SHIN, Jong-Hwa PARK
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Publication number: 20100053039Abstract: A display device includes a plurality of pixels respectively including a plurality of light-emitting elements, a comparing unit for comparing input image signals during a plurality of continuous frames for each pixel and determining whether the input image signals are repeated, a signal converter for converting the input image signal into a compensating image signal for the pixel where the input image signals are repeated during the continuous frames, and a data driver generating a data signal corresponding to the compensation image signal to supply the data signal to the pixel.Type: ApplicationFiled: August 25, 2009Publication date: March 4, 2010Inventors: Jong-Hwa Park, Kwang-Sub Shin, Byung-Sik Koh, Si-Duk Sung
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Publication number: 20090268112Abstract: A display apparatus includes a plurality of pixel regions. Each of the pixel regions includes a first sub-pixel region, a second sub-pixel region and a boost capacitor. The first sub-pixel region and the second sub-pixel region are electrically connected to the boost capacitor. The boost capacitor causes voltages the first and second sub-pixel regions to be at different voltages to increase the viewing angle of the display apparatus. One electrode of the boost capacitor, a coupling electrode, is formed over a storage capacitance line made of an opaque metal such that an additional boost capacitor (Cboost) may be formed without decreasing the aperture ratio of the pixel region. Other features are also provided.Type: ApplicationFiled: November 20, 2008Publication date: October 29, 2009Inventors: Jiangang Lu, Sung-Woon Kim, Seung-Hoon Lee, Hee-Seop Kim, Chun-Seok Ko, Mee-Hye Jung, Si-Duk Sung, Kwang-Chul Jung
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Publication number: 20090267526Abstract: A display device includes a display panel, a power transmitting member and a heat diffusing member. The display panel includes a base substrate, a power input part, a power signal line and a display element. The base substrate has an upper surface and a lower surface opposite the upper surface. The power input part is formed in an outer peripheral area of the upper surface. The power signal line is electrically connected to the power input part. The display element is electrically connected to the power signal line and generates light based on a power signal transmitted via the power input part. The power transmitting member is electrically connected to the power input part to transmit the power signal to the power input part. The heat diffusing member is disposed on the lower surface, and includes a guide groove into which the power transmitting member is disposed.Type: ApplicationFiled: April 7, 2009Publication date: October 29, 2009Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Si-Duk Sung, Joo-Woan Cho
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Publication number: 20090256785Abstract: A display device and a method of driving the same are provided. The display device includes a scan driver that generates a plurality of scanning signals, a data driver that generates a data voltage, and a plurality of pixels that receive the data voltage according to the scanning signal and that display luminance corresponding to the data voltage. Each pixel receives its own data voltage and a data voltage of other pixels while displaying a black color when its own scanning signal is in a first state, and stops reception of the data voltage and displays luminance corresponding to its own data voltage when its own scanning signal is in a second state.Type: ApplicationFiled: November 19, 2008Publication date: October 15, 2009Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Si-Duk SUNG, Byung-Sik Koh, Young-II Kim, Kyong-Tae Park
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Publication number: 20090146926Abstract: A driving apparatus for an organic light emitting device including pixels with light-emitting devices and a method of making such apparatus are presented. The uniform values based on voltages for each frame corresponding to grays of input image signals are calculated and summed, and data voltages are increased when the sum exceeds a predetermined value. The apparatus helps maintain the desired brightness in an organic light emitting diode (OLED) display device through the lifespan of the device.Type: ApplicationFiled: September 19, 2008Publication date: June 11, 2009Inventors: Si-Duk SUNG, Baek-Woon Lee
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Publication number: 20090122074Abstract: A display device includes a color converter, a timing controller, and a display panel. The color converter converts R, G, and B data into R?, G?, B?, and W? data. The R?, G?, B?, and W? data includes first component data and second component data. The timing controller provides the first component data to a data driver during a first driving time and provides the second component data to the data driver during a second driving time. The data driver provides gray level display voltages corresponding to the first component data and the second component data to a data line, and the display panel displays the R?, G?, B? and W? data in response to the gray level display voltage. A method of driving the display device is also disclosed.Type: ApplicationFiled: October 28, 2008Publication date: May 14, 2009Applicant: Samsung Electronics Co., Ltd.Inventors: Si-Duk Sung, Baek-Woon Lee
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Publication number: 20080048953Abstract: A display panel includes a display area and a peripheral area, and a power applying terminal portion is formed on the peripheral area. The frame includes a cover portion covering an edge of the display panel, and a power connecting terminal portion formed on an inner surface of the cover portion and electrically connected to the power applying terminal portion. The power supply part is disposed on the frame and supplies a driving power to the power connecting terminal portion.Type: ApplicationFiled: August 3, 2007Publication date: February 28, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.,Inventors: Byung-Sik KOH, Chun-Seok KO, Si-Duk SUNG
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Publication number: 20080036707Abstract: A more simplified organic light-emitting display (OLED) apparatus includes a display panel, gate and data driving circuit parts. The display panel includes an organic light-emitting element having an organic light-emitting layer disposed between first and second electrodes, to emit light. Driving and common voltages are respectively applied to the first and second electrodes. A gate driving circuit part is connected to a first side of the display panel to apply a gate signal, and the gate circuit driving part also applies the common voltage to a first common electrode formed at the first side and is electrically connected to the second electrode. A data driving circuit part is connected to a second side of the display panel to apply a data signal, and the data driving part also applies the common voltage to a second common electrode formed at a third side and electrically connected to the second electrode.Type: ApplicationFiled: August 8, 2007Publication date: February 14, 2008Inventors: Si-Duk SUNG, Byung-Sik Koh
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Publication number: 20080024526Abstract: An organic light emitting diode (OLED) display and a method of driving the same are provided. The OLED display includes: a plurality of pixels arrayed in a matrix, each of which includes a switching transistor and a driving transistor; a plurality of data lines connected to the switching transistors, which transmit a data voltage to the pixels; a plurality of driving voltage lines that transmit a driving voltage to the driving transistors; a voltage generator that applies the driving voltage to the driving voltage lines; a current sensing unit that senses a driving current that flows from the voltage generator to the driving voltage lines; a gray voltage generator that generates a gray voltage depending on a change in the driving current; and a data driver that converts an input image signal into the data voltage on the basis of the gray voltage and applies the data voltage to the data lines.Type: ApplicationFiled: June 28, 2007Publication date: January 31, 2008Inventors: Chun-Seok KO, Byung-Sik Koh, Si-Duk Sung
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Publication number: 20080024056Abstract: An organic light emitting diode display includes a display panel having a display area with a plurality of thin film transistors and a peripheral area provided along a circumference of the display area, an emission layer formed within the display area, a driver formed in the peripheral area which applies display signals including gate signals and data signals to the thin film transistors, a driving voltage pad formed in the peripheral area which applies a driving voltage to the display area, a common voltage pad formed in the peripheral area which applies a common voltage to the display area, a main connector connected to an external voltage source, and a flexible conductive film including a conductive layer electrically connecting between at least one of the driving voltage pad and the common voltage pad and the main connector. The organic light emitting diode display facilitates modulation due to a simple structure, and improves a voltage drop phenomenon.Type: ApplicationFiled: June 12, 2007Publication date: January 31, 2008Applicant: SAMSUNG ELECTRONICS CO., LTDInventors: Si-Duk SUNG, Byung-Sik KOH
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Publication number: 20080018569Abstract: An organic light emitting diode display device includes; a display panel including a pixel connected to a gate line and a data line, gate and data driving circuits which drive the gate and data lines, respectively, at least one temperature sensor disposed on the display panel which senses a temperature of the display panel, a sensor driving unit which converts a temperature signal supplied from the temperature sensor into a digital temperature signal, a timing controller which supplies the gate driving circuit with a control signal, supplies the data driving circuit with a control signal and a data signal, and generates a gamma reference voltage control signal according to the digital temperature signal, and a digital to analog converter which generates a gamma reference voltage which varies according to the gamma reference voltage control signal and supplies it to the data driving circuit.Type: ApplicationFiled: July 16, 2007Publication date: January 24, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Si Duk SUNG, Chun Seok Ko, Kyeng Eun Roh
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Publication number: 20080010876Abstract: A display device has an insulating substrate with a first surface and a second surface, a display element having an organic light-emitting layer arranged between two electrodes, a flexible member having a first end connected to the first surface and a second end facing the first end and the first surface, and a first accommodating member having a lower surface substantially parallel with the insulating substrate, a lateral surface extending from the lower surface, and a protruding part extending from the lower surface toward the first end. The first accommodating member includes a through hole, and the flexible member extends through the through hole so the second end is positioned outside the first accommodating member. The insulating substrate is arranged in the first accommodating member, and the protruding part may contact and press against the first end connected to the insulating substrate.Type: ApplicationFiled: June 20, 2007Publication date: January 17, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Si-Duk SUNG, Chun-Seok KO