Patents by Inventor Jae-Sic Lee
Jae-Sic Lee 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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Publication number: 20260087987Abstract: An electronic device includes a light emitting element, a data line, a pixel circuit, and a plurality of scan lines. The plurality of scan lines include an initializing scan line and a write scan line. The pixel circuit includes a first transistor including a first gate electrode, a second transistor including a second gate electrode receiving the write scan signal and connected to the data line, and a third transistor receiving the initializing scan signal and connected to the first gate electrode. The initializing scan line, the write scan line, and the first gate electrode are disposed on different layers from each other.Type: ApplicationFiled: July 23, 2025Publication date: March 26, 2026Inventors: HYUNAE PARK, Minki YANG, JAE-SIC LEE
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Publication number: 20250372037Abstract: A display device includes a first pixel connected to a first scan line which transmits a first scan signal and a first data line, a second pixel connected to the first scan line and a second data line, a data driver including an output buffer which outputs a data signal to an output line, and a demultiplexer including a first transistor connected between the first data line and the output line and turned-on in response to a first control signal, and a second transistor connected between the second data line and the output line and turned-on in response to a second control signal. A difference between a turn-on voltage level and a turn-off voltage level of each of the first and second control signals is less than a difference between a turn-on voltage level and a turn-off voltage level of the first scan signal.Type: ApplicationFiled: March 14, 2025Publication date: December 4, 2025Applicant: Samsung Display Co., LTD.Inventors: MINJOO KIM, CHULKYU KANG, MINWOO BYUN, SEONI JEONG, JI-HYUN KA, WONKYU KWAK, KYONGHWAN OH, JAE-SIC LEE
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Patent number: 11637164Abstract: A display device includes a display panel including pixels. One of the pixels includes a light emitting diode, a first capacitor connected between a power line receiving a power supply voltage and a first reference node, a first transistor connected between the power line and an anode of the light emitting diode, a second transistor connected between a data line and a first electrode of the first transistor, a third transistor including a plurality of sub-transistors connected between a second electrode of the first transistor and the first reference node in series, and a fourth transistor connected to a second reference node among a plurality of second reference nodes between the sub-transistors and receiving an initialization scan signal.Type: GrantFiled: May 19, 2021Date of Patent: April 25, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Wonkyu Kwak, Jae-Sic Lee, Wonse Lee, Jinhee Jang
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Patent number: 11581393Abstract: An electronic apparatus includes a base substrate having a first region, a second region at least partially surrounded by the first region, and a display region at least partially surrounding the first region, a plurality of pixels disposed on the base substrate, each of which includes a transistor and a light emitting element connected to the transistor, a hole line connecting pixels with the second region interposed therebetween, and a hole pattern electrically insulated from the hole line, disposed in the first region, and at least partially surrounding the second region.Type: GrantFiled: July 1, 2021Date of Patent: February 14, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Wonkyu Kwak, Jinhee Jang, Jae-Sic Lee, Minchae Kwak, Byungsun Kim, Hansol Kim, Changsoo Pyon, Jae Yong Lee, Jae-Ho Choi
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Patent number: 11302262Abstract: An organic light-emitting display device includes: a data driver configured to divide one frame into an odd-numbered sub-frame and an even-numbered sub-frame, to divide frame data for implementing the one frame into odd-numbered sub-frame data and even-numbered sub-frame data, to provide the odd-numbered sub-frame data to the data lines in the odd-numbered sub-frame, and to provide the even-numbered sub-frame data to the data lines in the even-numbered sub-frame; an odd-numbered scan driver electrically connected to odd-numbered scan lines to provide an odd-numbered scan signal to the odd-numbered scan lines in the odd-numbered sub-frame; an even-numbered scan driver electrically connected to even-numbered scan lines to provide an even-numbered scan signal to the even-numbered scan lines in the even-numbered sub-frame; an emission driver to provide an emission signal to emission line groups formed by grouping the emission lines by two adjacent emission lines in the odd-numbered sub-frame and the even-numberedType: GrantFiled: November 30, 2020Date of Patent: April 12, 2022Assignee: Samsung Display Co., Ltd.Inventors: Hai-Jung In, Won Kyu Kwak, Jae-Sic Lee
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Publication number: 20220069044Abstract: A display device includes a display panel including pixels. One of the pixels includes a light emitting diode, a first capacitor connected between a power line receiving a power supply voltage and a first reference node, a first transistor connected between the power line and an anode of the light emitting diode, a second transistor connected between a data line and a first electrode of the first transistor, a third transistor including a plurality of sub-transistors connected between a second electrode of the first transistor and the first reference node in series, and a fourth transistor connected to a second reference node among a plurality of second reference nodes between the sub-transistors and receiving an initialization scan signal.Type: ApplicationFiled: May 19, 2021Publication date: March 3, 2022Inventors: WONKYU KWAK, JAE-SIC LEE, WONSE LEE, JINHEE JANG
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Publication number: 20220037451Abstract: An electronic apparatus includes a base substrate having a first region, a second region at least partially surrounded by the first region, and a display region at least partially surrounding the first region, a plurality of pixels disposed on the base substrate, each of which includes a transistor and a light emitting element connected to the transistor, a hole line connecting pixels with the second region interposed therebetween, and a hole pattern electrically insulated from the hole line, disposed in the first region, and at least partially surrounding the second region.Type: ApplicationFiled: July 1, 2021Publication date: February 3, 2022Inventors: WONKYU KWAK, Jinhee Jang, Jae-Sic Lee, Minchae Kwak, Byungsun Kim, Hansol Kim, Changsoo Pyon, Jae Yong Lee, Jae-Ho Choi
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Publication number: 20210166635Abstract: An organic light-emitting display device includes: a data driver configured to divide one frame into an odd-numbered sub-frame and an even-numbered sub-frame, to divide frame data for implementing the one frame into odd-numbered sub-frame data and even-numbered sub-frame data, to provide the odd-numbered sub-frame data to the data lines in the odd-numbered sub-frame, and to provide the even-numbered sub-frame data to the data lines in the even-numbered sub-frame; an odd-numbered scan driver electrically connected to odd-numbered scan lines to provide an odd-numbered scan signal to the odd-numbered scan lines in the odd-numbered sub-frame; an even-numbered scan driver electrically connected to even-numbered scan lines to provide an even-numbered scan signal to the even-numbered scan lines in the even-numbered sub-frame; an emission driver to provide an emission signal to emission line groups formed by grouping the emission lines by two adjacent emission lines in the odd-numbered sub-frame and the even-numberedType: ApplicationFiled: November 30, 2020Publication date: June 3, 2021Inventors: Hai-Jung IN, Won Kyu KWAK, Jae-Sic LEE
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Patent number: 10410582Abstract: A display panel includes a displaying area including pixels, a non-displaying area including a dummy pixel, and a switching circuit to transfer a data signal to the dummy pixel in response to a control signal. The display panel may compensate for defective pixels located in different data lines using only one dummy pixel column and may minimize an area (e.g., a dead space) including the dummy pixel column by including a distributor buffering a signal of an output line and a switching circuit selecting/providing a portion of a signal of the output line to a dummy data line.Type: GrantFiled: June 19, 2017Date of Patent: September 10, 2019Assignee: Samsung Display Co., Ltd.Inventors: Jae-Sic Lee, Jung-Hoon Shim
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Patent number: 10373566Abstract: An organic light emitting diode (OLED) display device includes a display panel including a plurality of pixel rows; a driving circuit configured to: provide a first display data to the plurality of pixel rows in a normal mode; provide a second display data including black data to the plurality of pixel rows in a dimming mode, in response to a mode signal; and decrease a second luminance of the display panel in the dimming mode to a level lower than a first luminance of the display panel in the normal mode; and a power supply configured to apply a lower power supply voltage and a high power supply voltage to the display panel, the power supply providing the mode signal.Type: GrantFiled: July 24, 2015Date of Patent: August 6, 2019Assignee: Samsung Display Co., Ltd.Inventors: Jae-Sic Lee, Jin-Woo Park
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Patent number: 10170048Abstract: A pixel and an organic light-emitting diode (OLED) display having the same are disclosed. In one aspect, a pixel includes an OLED including an anode and a cathode and configured to emit light corresponding to data signals applied during first and second frame periods. Each of the first and second frame periods includes a first discharge period and a light-emitting period subsequent to the first discharge period. The pixel also includes a pixel circuit configured to control light emission of the OLED, apply a first voltage to the anode during the light-emitting period, apply a second voltage to the cathode, the second voltage having a voltage level less than that of the first voltage, and apply a third voltage to the anode so as to discharge the anode during the first discharge period. The second voltage has different voltage levels during the first and second frame periods.Type: GrantFiled: September 13, 2016Date of Patent: January 1, 2019Assignee: Samsung Display Co., Ltd.Inventors: Jae-Sic Lee, Seung-Kyu Lee
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Patent number: 10121415Abstract: An OLED display according to an exemplary embodiment of the present disclosure includes: a substrate; a scan line on the substrate and configured to transmit a scan signal; a data line crossing the scan line and configured to transmit a data voltage; a driving voltage line crossing the scan line and configured to transmit a driving voltage, a portion of the driving voltage line being a second storage electrode; a switching transistor connected to the scan line and the data line; a driving transistor connected to the switching transistor and including a driving gate electrode; a driving connecting member connected to the driving gate electrode; a first storage electrode, the second storage electrode overlapping the first storage electrode; a shielding member connected to the second storage electrode and between the driving connecting member and the data line; and an organic light emitting diode connected to the driving transistor.Type: GrantFiled: October 21, 2015Date of Patent: November 6, 2018Assignee: Samsung Display Co., Ltd.Inventors: Dong Sun Lee, Dong-Hwi Kim, Jae-Sic Lee
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Publication number: 20180012542Abstract: A display panel includes a displaying area including pixels, a non-displaying area including a dummy pixel, and a switching circuit to transfer a data signal to the dummy pixel in response to a control signal. The display panel may compensate for defective pixels located in different data lines using only one dummy pixel column and may minimize an area (e.g., a dead space) including the dummy pixel column by including a distributor buffering a signal of an output line and a switching circuit selecting/providing a portion of a signal of the output line to a dummy data line.Type: ApplicationFiled: June 19, 2017Publication date: January 11, 2018Inventors: Jae-Sic Lee, Jung-Hoon Shim
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Publication number: 20160379569Abstract: A pixel and an organic light-emitting diode (OLED) display having the same are disclosed. In one aspect, a pixel includes an OLED including an anode and a cathode and configured to emit light corresponding to data signals applied during first and second frame periods. Each of the first and second frame periods includes a first discharge period and a light-emitting period subsequent to the first discharge period. The pixel also includes a pixel circuit configured to control light emission of the OLED, apply a first voltage to the anode during the light-emitting period, apply a second voltage to the cathode, the second voltage having a voltage level less than that of the first voltage, and apply a third voltage to the anode so as to discharge the anode during the first discharge period. The second voltage has different voltage levels during the first and second frame periods.Type: ApplicationFiled: September 13, 2016Publication date: December 29, 2016Inventors: Jae-Sic Lee, Seung-Kyu Lee
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Patent number: 9530519Abstract: A scan driver and a display device including the scan driver are provided. The scan driver is configured to drive a plurality of pixels with a plurality of gate signals and includes a plurality of stages, each of the stages including one or more regions, each of the regions including: a plurality of sub-drivers configured to generate ones of the gate signals and to transmit the ones of the gate signals to ones of the pixels; and a driver commonly coupled to the sub-drivers and configured to concurrently supply a common signal to each of the sub-drivers, the driver of one of the one or more regions being configured to receive the common signal of one of the one or more regions of a previous one of the stages during forward direction driving or of a next one of the stages during reverse direction driving.Type: GrantFiled: July 23, 2013Date of Patent: December 27, 2016Assignee: Samsung Display Co., Ltd.Inventors: Jae-Sic Lee, Hyun Lee
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Patent number: 9460662Abstract: A pixel and an organic light-emitting diode (OLED) display having the same are disclosed. In one aspect, a pixel includes an OLED including an anode and a cathode and configured to emit light corresponding to data signals applied during first and second frame periods. Each of the first and second frame periods includes a first discharge period and a light-emitting period subsequent to the first discharge period. The pixel also includes a pixel circuit configured to control light emission of the OLED, apply a first voltage to the anode during the light-emitting period, apply a second voltage to the cathode, the second voltage having a voltage level less than that of the first voltage, and apply a third voltage to the anode so as to discharge the anode during the first discharge period. The second voltage has different voltage levels during the first and second frame periods.Type: GrantFiled: March 12, 2015Date of Patent: October 4, 2016Assignee: Samsung Display Co., Ltd.Inventors: Jae-Sic Lee, Seung-Kyu Lee
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Publication number: 20160240146Abstract: An organic light emitting diode (OLED) display device includes a display panel including a plurality of pixel rows; a driving circuit configured to: provide a first display data to the plurality of pixel rows in a normal mode; provide a second display data including black data to the plurality of pixel rows in a dimming mode, in response to a mode signal; and decrease a second luminance of the display panel in the dimming mode to a level lower than a first luminance of the display panel in the normal mode; and a power supply configured to apply a lower power supply voltage and a high power supply voltage to the display panel, the power supply providing the mode signal.Type: ApplicationFiled: July 24, 2015Publication date: August 18, 2016Inventors: Jae-Sic Lee, Jin-Woo Park
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Patent number: 9412307Abstract: An organic light emitting diode (OLED) display includes a display unit including a plurality of pixels connected to a plurality of data lines, a plurality of scan lines, a plurality of initializing control lines, and a plurality of light emission control lines, a scan driver to output scan signals to the scan lines and initializing signals to the initializing control lines, and a data driver to output data signals to respective ones of the data lines. A first pixel and a second pixel may be commonly connected to a scan line and a data line. The scan driver may output at least one first initializing signal and at least one second initializing signal to the first pixel and second pixel, respectively. The scan signals and the first and the second initializing signals may be activated at different points in time.Type: GrantFiled: March 19, 2014Date of Patent: August 9, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sun-Ja Kwon, Jae-Sic Lee
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Publication number: 20160210905Abstract: An OLED display according to an exemplary embodiment of the present disclosure includes: a substrate; a scan line on the substrate and configured to transmit a scan signal; a data line crossing the scan line and configured to transmit a data voltage; a driving voltage line crossing the scan line and configured to transmit a driving voltage, a portion of the driving voltage line being a second storage electrode; a switching transistor connected to the scan line and the data line; a driving transistor connected to the switching transistor and including a driving gate electrode; a driving connecting member connected to the driving gate electrode; a first storage electrode, the second storage electrode overlapping the first storage electrode; a shielding member connected to the second storage electrode and between the driving connecting member and the data line; and an organic light emitting diode connected to the driving transistor.Type: ApplicationFiled: October 21, 2015Publication date: July 21, 2016Inventors: Dong Sun Lee, Dong-Hwi Kim, Jae-Sic Lee
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Patent number: 9391125Abstract: An organic light emitting diode display includes a substrate having a display unit and a peripheral portion, scan lines in a first direction, data lines in a second direction, pixels in the display unit and having pixel circuit portions and organic light emitting diodes, first dummy lines in the display unit and extending in the first direction, at least one second dummy line in the peripheral portion and extending in the second direction, dummy circuit portions connected to a first dummy line and the at least one second dummy line, driving pads connected to end portions of the data lines, at least one dummy driving pad connected to an end portion of the at least one second dummy line, and a driving circuit configured to transmit a data signal to the driving pads and to the at least one dummy driving pad.Type: GrantFiled: June 24, 2014Date of Patent: July 12, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Tae Gon Kim, Se-Ho Kim, Jae-Sic Lee