Patents by Inventor Jiah KIM
Jiah 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).
-
Publication number: 20240177668Abstract: A display device can include a plurality of sub pixels disposed on a substrate; a first driver disposed in each of the plurality of sub pixels, the first driver being configured to generate a first driving current for a normal mode in which an image is displayed in a luminance range equal to or lower than a predetermined luminance; a second driver disposed in each of the plurality of sub pixels, the second driver being configured to generate a second driving current for a high luminance mode in which the luminance range is higher than the predetermined luminance; and a light emitting diode. Also, the light emitting diode is configured to receive the first driving current in the normal mode, and receive a sum of the first driving current and the second driving current in the high luminance mode.Type: ApplicationFiled: August 25, 2023Publication date: May 30, 2024Applicant: LG Display Co., Ltd.Inventors: JiAh KIM, JoungMi CHOI
-
Patent number: 10600369Abstract: The disclosure relates to data driver and organic light emitting display device. The data driver includes: an input unit configured to receive an input data; a compensation data generator configured to generate a compensation data by applying a compensation value to the input data; a converter unit configured to convert the input data into an image data voltage and to convert the compensation data into a compensation data voltage; and an output unit configured to separately output the image data voltage and the compensation data voltage to a data line of the organic light emitting display.Type: GrantFiled: December 7, 2017Date of Patent: March 24, 2020Assignee: LG Display Co., Ltd.Inventors: Taehun Kim, Kitae Kwon, Kyujin Kim, Jiah Kim
-
Patent number: 10497334Abstract: A display device is provided that includes a display panel divided into a plurality of blocks, each of the blocks including a plurality of lines of pixels and configured to be driven in a time-division manner with a touch sensing period interposed between two display periods, the two display periods corresponding to display periods for two adjacent blocks of the plurality of blocks. The display device further includes a display driving circuit, and a touch sensing unit configured to receive a sync signal for synchronizing the display driving circuit with the touch sensing unit. The display device is configured to change the sync signal every predetermined period of time so as to shift the touch sensing period interposed between the two display periods.Type: GrantFiled: July 26, 2017Date of Patent: December 3, 2019Assignee: LG Display Co., LtdInventors: Byeongseong So, Jiah Kim
-
Patent number: 10446070Abstract: Provided are a display device, a scan driver, and a method of manufacturing the same. A scan driver includes: a level shifter configured to output a power and a signal, and a scan signal generating circuit configured to generate a scan signal based on the power and the signal supplied from the level shifter, the scan signal generating circuit including a buffer configured to transmit a clock signal to a stage of a shift register, the buffer including two inverters, one of the two inverters being included in a multi-buffer.Type: GrantFiled: August 5, 2015Date of Patent: October 15, 2019Assignees: LG Display Co., Ltd., Ewha University—Industry Collaboration FoundationInventors: Jiah Kim, Juyoung Lee, Byeongseong So, Seungjun Lee
-
Patent number: 10180752Abstract: A display device and a gate driver circuit of the display device are disclosed. The display device includes a shift register that shifts a gate pulse in accordance with a shift clock and sequentially supplies the gate pulse to gate lines. At least one stage of the shift register includes a discharge blocking node connected to a source terminal of the second transistor, and a discharge blocking circuit configured to charge the discharge blocking node when the Q node is charged, and discharge the discharge blocking node when the Q node is discharged.Type: GrantFiled: May 25, 2017Date of Patent: January 15, 2019Assignee: LG Display Co., Ltd.Inventors: Jiah Kim, Byeongseong So
-
Publication number: 20190005888Abstract: The disclosure relates to data driver and organic light emitting display device. The data driver includes: an input unit configured to receive an input data; a compensation data generator configured to generate a compensation data by applying a compensation value to the input data; a converter unit configured to convert the input data into an image data voltage and to convert the compensation data into a compensation data voltage; and an output unit configured to separately output the image data voltage and the compensation data voltage to a data line of the organic light emitting display.Type: ApplicationFiled: December 7, 2017Publication date: January 3, 2019Inventors: Taehun KIM, Kitae KWON, Kyujin KIM, Jiah KIM
-
Patent number: 10019929Abstract: A display device having a plurality of gate lines and a gate drive circuit is disclosed. The gate drive circuit includes a pull-up transistor configured to receive a first clock signal and to charge an output node to a voltage of the first clock signal based on a voltage of a Q node. The output node is connected to a corresponding one of the gate lines. The gate drive circuit also includes a switching circuit configured to charge the Q node based on a second clock signal. The switching circuit has an inverter circuit configured to control the voltage of the Q node based on the second clock signal.Type: GrantFiled: December 30, 2015Date of Patent: July 10, 2018Assignee: LG Display Co., Ltd.Inventors: Dahye Shim, Joungmi Choi, Youngsung Cho, Jiah Kim
-
Publication number: 20180033391Abstract: A display device is provided that includes a display panel divided into a plurality of blocks, each of the blocks including a plurality of lines of pixels and configured to be driven in a time-division manner with a touch sensing period interposed between two display periods, the two display periods corresponding to display periods for two adjacent blocks of the plurality of blocks. The display device further includes a display driving circuit, and a touch sensing unit configured to receive a sync signal for synchronizing the display driving circuit with the touch sensing unit. The display device is configured to change the sync signal every predetermined period of time so as to shift the touch sensing period interposed between the two display periods.Type: ApplicationFiled: July 26, 2017Publication date: February 1, 2018Inventors: Byeongseong SO, Jiah KIM
-
Publication number: 20170344179Abstract: A display device and a gate driver circuit of the display device are disclosed. The display device includes a shift register that shifts a gate pulse in accordance with a shift clock and sequentially supplies the gate pulse to gate lines. At least one stage of the shift register includes a discharge blocking node connected to a source terminal of the second transistor, and a discharge blocking circuit configured to charge the discharge blocking node when the Q node is charged, and discharge the discharge blocking node when the Q node is discharged.Type: ApplicationFiled: May 25, 2017Publication date: November 30, 2017Inventors: Jiah KIM, Byeongseong SO
-
Publication number: 20170032731Abstract: A display device having a plurality of gate lines and a gate drive circuit is disclosed. The gate drive circuit includes a pull-up transistor configured to receive a first clock signal and to charge an output node to a voltage of the first clock signal based on a voltage of a Q node. The output node is connected to a corresponding one of the gate lines. The gate drive circuit also includes a switching circuit configured to charge the Q node based on a second clock signal. The switching circuit has an inverter circuit configured to control the voltage of the Q node based on the second clock signal.Type: ApplicationFiled: December 30, 2015Publication date: February 2, 2017Applicant: LG Display Co., Ltd.Inventors: Dahye Shim, Joungmi Choi, Youngsung Cho, Jiah Kim
-
Publication number: 20160042684Abstract: Provided are a display device, a scan driver, and a method of manufacturing the same. A scan driver includes: a level shifter configured to output a power and a signal, and a scan signal generating circuit configured to generate a scan signal based on the power and the signal supplied from the level shifter, the scan signal generating circuit including a buffer configured to transmit a clock signal to a stage of a shift register, the buffer including two inverters, one of the two inverters being included in a multi-buffer.Type: ApplicationFiled: August 5, 2015Publication date: February 11, 2016Applicants: LG DISPLAY CO., LTD., Ewha University - Industry Collaboration FoundationInventors: Jiah KIM, Juyoung LEE, Byeongseong SO, Seungjun LEE