Patents by Inventor Mi-Hae Kim
Mi-Hae Kim 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: 9437133Abstract: An organic light emitting diode (OLED) display device is disclosed. In one aspect, the OLED display device includes a driver that receives image data and generates a data signal and a scan signal corresponding to the image data, and an organic light emitting display panel that receives the data signal and the scan signal and displays an image corresponding to the image data, wherein the scan signal includes a scan-on period and a scan-off period, and when gray scales of the image data increase, the length of the scan-on period increases.Type: GrantFiled: October 15, 2013Date of Patent: September 6, 2016Assignee: Samsung Display Co., Ltd.Inventors: Mi Hae Kim, Ki Myeong Eom
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Publication number: 20160247452Abstract: An organic light-emitting diode display is disclosed. The display includes a scan line formed over a substrate and configured to carry a scan signal. First and second data lines are adjacent to each other and crossing the scan line. The first and second data lines are configured carry a data voltage. A driving voltage line crossing the scan line is configured to carry a driving voltage, and a switching transistor is electrically connected to the scan line and the data line and includes a switching drain electrode configured to output the data voltage. A driving transistor includes a driving gate electrode and a driving source electrode electrically connected to the switching drain electrode. An OLED is electrically connected to the driving drain electrode of the driving transistor, and a connector is connected to the driving gate electrode of the driving transistor and interposed between the first and second data lines.Type: ApplicationFiled: February 9, 2016Publication date: August 25, 2016Inventors: KWANG SAE LEE, MI HAE KIM, JI HYE KIM, WON MI HWANG
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Patent number: 9412306Abstract: A driving apparatus includes: a plurality of shift registers disposed at a plurality of stages, respectively, where each of the shift registers includes: a first driver which generates an intermediate output signal and a first output signal based on a first signal, where the first driver includes: an input signal terminal, to which the first signal is applied; and an inversion input signal terminal, to which a second signal, which is an inverted signal of the first signal, is applied; and a second driver which receives the first output signal and generates a second driver output signal having a pulse voltage at a first level based on the first output signal and a pulse voltage at a second level based on a first clock signal or a second clock signal.Type: GrantFiled: March 10, 2014Date of Patent: August 9, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Mi-Hae Kim
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Publication number: 20160217733Abstract: An organic light-emitting diode (OLED) display is disclosed. In one aspect, the OLED display includes a substrate and an active pattern formed over the substrate and including first to fourth regions, the first and fourth regions connected to each other. The display also includes a gate insulation layer formed over the active pattern, and a first gate electrode formed over the gate insulation layer. The first gate electrode, the first region and the second region define a first transistor. The display also includes a second gate electrode formed over the gate insulation layer, and the second gate electrode, the third region and the fourth region define a second transistor. The display also includes a first insulating interlayer formed over the first and second gate electrodes and a conductive pattern formed over the first insulating interlayer. An OLED is configured to receive a driving current from the first transistor.Type: ApplicationFiled: September 3, 2015Publication date: July 28, 2016Inventors: Mi-Hae Kim, Ki-Myeong Eom
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Patent number: 9396685Abstract: A method for driving an organic light emitting display device that is able to minimize power consumption while in a standby mode. In order to decrease power consumption during standby mode, only a portion of the display corresponding to the standby mode display area displays an image while in standby mode, and a remainder of the image producing display displays black. The method includes sequentially supplying a scanning signal to the standby mode display region and the standby mode non-display region, supplying a data signal in response to the image in a data driver when supplying the scanning signal to the standby mode display region and supplying the data signal in response to a black image from an inspecting unit while supplying the scanning signal to the standby mode non-display region.Type: GrantFiled: April 27, 2011Date of Patent: July 19, 2016Assignee: Samsung Display Co., ltd.Inventor: Mi-Hae Kim
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Publication number: 20160141350Abstract: An organic light emitting diode display includes a plurality of pixels. At least one pixel is connected to a scan line receive a scan signal, a data line to receive a data signal, and voltage line to receive a driving voltage. The at least one pixel includes a switching transistor including a switching drain electrode to output the data voltage, a driving transistor including a driving source electrode connected to the switching drain electrode, and an organic light emitting diode connected to a driving drain electrode of the driving transistor. The driving source electrode is separated from the data line.Type: ApplicationFiled: April 30, 2015Publication date: May 19, 2016Inventors: Mi Hae KIM, Min Ho KO, Seung Woo SUNG, Ki Myeong EOM, Jin JEON
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Publication number: 20160078812Abstract: An organic light emitting display device includes: a data line and an auxiliary data line; a scan line disposed crossing the a data line and the auxiliary data line; a display pixel disposed where the data line and the scan line cross; an auxiliary pixel disposed where the auxiliary data line, and the scan line cross; and an auxiliary line connected to the auxiliary pixel, wherein the auxiliary pixel includes: a discharge transistor coupled to the auxiliary line and a first power voltage line to which a first power voltage is supplied; and a discharge transistor controller configured to switch the discharge transistor.Type: ApplicationFiled: June 26, 2015Publication date: March 17, 2016Inventors: Jae-Sic LEE, Mi-Hae KIM
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Publication number: 20160005346Abstract: A display device is disclosed. In one aspect, the display device includes a display panel including gate lines and pixels electrically connected to the gate lines, the pixels comprising a first pixel row and a second pixel row having a fewer number of pixels than the first pixel row. The display device also includes a gate driver including stages, each configured to output a gate signal to the respective gate line, the gate lines comprising first and second gate lines respectively connected to the first and second pixel rows, and the stages comprising first and second stages respectively connected to the first and second gate lines. An output transistor of each stage is configured to output the gate signal and the channel width of the output transistor of the first stage is greater than that of the output transistor of the second stage.Type: ApplicationFiled: December 2, 2014Publication date: January 7, 2016Inventor: Mi Hae Kim
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Publication number: 20150022514Abstract: An organic light emitting display device includes a plurality of pixels at areas defined by intersections of scan lines, emission control lines, and data lines. A data driver supplies data signals to the data lines. A scan driver supplies scan signals to the scan lines and progressively supplies a reference power source voltage and an emission control signal to the emission control lines. The reference power source voltage is set to a voltage greater than a voltage of the scan signal and less than a voltage of the emission control signal.Type: ApplicationFiled: July 11, 2014Publication date: January 22, 2015Inventors: Seung-Kyu LEE, Jin JEON, Mi-Hae KIM, Chang-Yeop KIM
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Publication number: 20150015554Abstract: A driving apparatus includes: a plurality of shift registers disposed at a plurality of stages, respectively, where each of the shift registers includes: a first driver which generates an intermediate output signal and a first output signal based on a first signal, where the first driver includes: an input signal terminal, to which the first signal is applied; and an inversion input signal terminal, to which a second signal, which is an inverted signal of the first signal, is applied; and a second driver which receives the first output signal and generates a second driver output signal having a pulse voltage at a first level based on the first output signal and a pulse voltage at a second level based on a first clock signal or a second clock signal.Type: ApplicationFiled: March 10, 2014Publication date: January 15, 2015Applicant: Samsung Display Co., Ltd.Inventor: Mi-Hae KIM
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Publication number: 20140198135Abstract: Provided is an organic light emitting display device including: a scan driver configured to supply a scan signal to a scan line during a scan period of a horizontal period; a data driver configured to supply a plurality of data signals to a plurality of output lines during a data period of the horizontal period; a demultiplexer configured to transmit the data signals through the output lines to a plurality of data lines according to a plurality of control signals; and a demultiplexer controller configured to supply the control signals to the demultiplexer, with a supply order of the control signals being changed for each frame.Type: ApplicationFiled: July 1, 2013Publication date: July 17, 2014Inventors: Ki-Myeong Eom, Mi-Hae Kim
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Publication number: 20140104328Abstract: An organic light emitting diode (OLED) display device is disclosed. In one aspect, the OLED display device includes a driver that receives image data and generates a data signal and a scan signal corresponding to the image data, and an organic light emitting display panel that receives the data signal and the scan signal and displays an image corresponding to the image data, wherein the scan signal includes a scan-on period and a scan-off period, and when gray scales of the image data increase, the length of the scan-on period increases.Type: ApplicationFiled: October 15, 2013Publication date: April 17, 2014Applicant: Samsung Display Co., Ltd.Inventors: Mi Hae Kim, Ki Myeong Eom
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Patent number: 8674380Abstract: The present invention provides a light emitting device, comprising a first light emitting diode for emitting light in an ultraviolet wavelength region; at least one phosphor arranged around the first light emitting diode and excited by the light emitted from the first light emitting diode to emit light having a peak wavelength longer than the wavelength of the light emitted from the first light emitting diode; and at least one second light emitting diode for emitting light having a wavelength different from the peak wavelength of the light emitted from the phosphor.Type: GrantFiled: May 1, 2012Date of Patent: March 18, 2014Assignee: Seoul Semiconductor Co., Ltd.Inventors: Sang Min Lee, Hyuck Jung Choi, Mi-Hae Kim
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Patent number: 8482492Abstract: An organic light emitting display capable of preventing erroneous emission from being generated at the initial stage of driving the organic light emitting display and a method of driving the same. The organic light emitting display includes a display unit including data lines, scan lines, emission control lines, and pixels coupled to the data lines, the scan lines, and the emission control lines. A data driver is coupled to the data lines for transmitting data signals. A scan driver is coupled to the scan lines for transmitting scan signals. An emission control driver is coupled to the emission control lines for transmitting emission control signals. A controller is provided for transmitting a plurality of control signals for controlling the data driver, the scan driver, and the emission control driver, and outputting a first control signal for preventing currents from flowing to organic light emitting diodes of the pixels.Type: GrantFiled: June 1, 2009Date of Patent: July 9, 2013Assignee: Samsung Display Co., Ltd.Inventors: Mi-Hae Kim, Seon-I Jeong, Ki-Myeong Eom, Jin-Tae Jeong
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Patent number: 8451259Abstract: An emission driver includes a plurality of stages, each including: a first driver for outputting an emission control signal through a corresponding emission control line in accordance with either the emission control signal and an inverse emission control signal output from a previous stage of the plurality of stages or a start signal and an inverse start signal; and a second driver for outputting an inverse emission control signal in accordance with the emission control signal and the inverse emission control signal output from the previous stage or the start signal and the inverse start signal, wherein odd numbered stages of the plurality of stages coupled to corresponding odd numbered emission control lines are configured to be driven by a first clock signal, and even numbered stages of the plurality of stages coupled to corresponding even numbered emission control lines are configured to be driven by a second clock signal.Type: GrantFiled: December 11, 2009Date of Patent: May 28, 2013Assignee: Samsung Display Co., Ltd.Inventor: Mi-Hae Kim
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Patent number: 8436850Abstract: A pixel including a boosting capacitor, wherein the boosting capacitor includes: a semiconductor layer, a first conductive layer overlapping the semiconductor layer at an overlapping portion, and a first insulating film therebetween, and wherein the semiconductor layer includes: a main body portion, a contact portion outside the overlapping portion and coupling the boosting capacitor with another component, and a connecting portion integrally provided with the main body portion and the contact portion to couple the main body portion with the contact portion at an interface of the first conductive layer and having a width smaller than that of the main body portion and the contact portion.Type: GrantFiled: August 27, 2010Date of Patent: May 7, 2013Assignee: Samsung Display Co., Ltd.Inventors: Chang-Yeop Kim, Won-Kyu Kwak, Mi-Hae Kim
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Patent number: 8350279Abstract: A light emitting diode having an AlInGaP active layer and a method of fabricating the same are disclosed. The light emitting diode includes a substrate. A plurality of light emitting cells are positioned to be spaced apart from one another, wherein each of the light emitting cells has a first conductive-type lower semiconductor layer, an AlInGaP active layer and a second conductive-type upper semiconductor layer. Meanwhile, a semi-insulating layer is interposed between the substrate and the light emitting cells. Further, wires connect the plurality of light emitting cells in series. Accordingly, it is possible to provide a light emitting diode, in which a plurality of light emitting cells are connected in series to one another through wires to be driven by an AC power source.Type: GrantFiled: September 4, 2007Date of Patent: January 8, 2013Assignee: Seoul Opto Device Co., Ltd.Inventors: Chung Hoon Lee, Jae Ho Lee, Mi Hae Kim
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Patent number: 8339424Abstract: An organic light emitting display which prevents unnecessary illumination of the organic light emitting diodes is disclosed. The display has an emission driver which globally turns off all of the pixels during an initialization period, and allows normal operation during other times.Type: GrantFiled: February 27, 2009Date of Patent: December 25, 2012Assignee: Samsung Display Co., Ltd.Inventors: Seon-I Jeong, Mi-Hae Kim, Ki-Myeong Eom, Jin-Tae Jeong
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Patent number: 8299990Abstract: A flat panel display sequentially supplying data signals to a pixel portion using a demultiplexer and a method of driving the flat panel sufficiently supply scan signals in a horizontal period to prevent deformation and distortion of the data signal supplied to each pixel and compensate for a threshold voltage of a drive transistor of the pixel. The flat panel display includes a pixel portion having a plurality of pixels, a scan driver to supply scan signals to the pixel portion, a data driver to generate data signals, a demultiplexer portion to sequentially supply the data signals to the pixel portion, and a lighting tester to supply a lighting test signal and an initialization signal to the pixel portion. Alternatively, the flat panel display includes a pixel portion having a plurality of pixels, a scan driver to supply scan signals to the pixel portion, a data driver to output data signals and a demultiplexer portion to sequentially supply an initialization signal and the data signal to the pixel portion.Type: GrantFiled: March 12, 2009Date of Patent: October 30, 2012Assignee: Samsung Display Co., Ltd.Inventors: Ok-Kyung Park, Mi-Hae Kim, Seon-I Jeong, Chang-Soo Pyon, Sam-Il Han
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Publication number: 20120211781Abstract: The present invention provides a light emitting device, comprising a first light emitting diode for emitting light in an ultraviolet wavelength region; at least one phosphor arranged around the first light emitting diode and excited by the light emitted from the first light emitting diode to emit light having a peak wavelength longer than the wavelength of the light emitted from the first light emitting diode; and at least one second light emitting diode for emitting light having a wavelength different from the peak wavelength of the light emitted from the phosphor.Type: ApplicationFiled: May 1, 2012Publication date: August 23, 2012Applicant: SEOUL SEMICONDUCTOR CO. LTD.Inventors: Sang Min LEE, Hyuck Jung CHOI, Mi-Hae KIM