Patents by Inventor Keum-Dong JUNG
Keum-Dong JUNG 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: 20250077021Abstract: A touch module includes: a touch array including: a first electrode group including touch electrodes extending in a first direction, and located along a second direction crossing the first direction; and a second electrode group including touch electrodes extending in the second direction, and located along the first direction; and a touch driver to output uplink signals through each of the first electrode group and the second electrode group to an external device adjacent to the touch array, the external device to calculate position information based on the uplink signals. The touch driver is to output the uplink signals by applying touch driving signals to some of the touch electrodes of the first touch electrode group, and at least one synchronization signal to others of the touch electrodes of the first touch electrode group, and at least some of the touch driving signals are synchronized with the synchronization signal.Type: ApplicationFiled: February 23, 2024Publication date: March 6, 2025Inventors: Jang Hui KIM, Ji Hoon KIM, Keum Dong JUNG
-
Publication number: 20250057005Abstract: A display device including: a base layer; a backplane structure provided on the base layer, the backplane structure including pixel circuits and a sensor circuit; a pixel layer provided on the backplane structure, the pixel layer including light emitting elements respectively connected to the pixel circuits and a light receiving element connected to the sensor circuit; an encapsulation layer covering the pixel layer; a black matrix provided on the encapsulation layer, wherein the black matrix includes openings overlapping the light emitting elements and the light receiving element; and a color filter provided on the encapsulation layer and covering the black matrix, wherein the light emitting elements include light emitting layers, the light receiving element includes a light receiving layer, and at least one of the openings of the black matrix overlaps one of the light emitting layers and the light receiving layer.Type: ApplicationFiled: October 28, 2024Publication date: February 13, 2025Inventors: Suk KIM, Gee Bum KIM, Tae Hoon YANG, Byeong Wook YOO, Dae Young LEE, Keum Dong JUNG
-
Publication number: 20250053264Abstract: A touch system may include a touch array including touch electrodes, a touch driver configured to apply touch driving signals including different codes to the touch electrodes to thereby transmit uplink signals to objects adjacent to the touch array, at least one sub-host connected to at least one object among the objects through a communication channel, and configured to receive, from the at least one object, position information corresponding to the at least one object through the communication channel, and a main host configured to receive the position information corresponding to the at least one object through the at least one sub-host.Type: ApplicationFiled: March 6, 2024Publication date: February 13, 2025Inventors: Keum Dong JUNG, Jang Hui KIM, Ji Hoon KIM
-
Publication number: 20250021195Abstract: A display device, includes: a display panel including pixels; a display driver configured to operate in a unit of a frame period including an active period and a blank period and to display an image on the display panel in the active period of the frame period, based on image data; a touch array on the display panel and including touch electrodes; a touch driver configured to transmit, in an uplink period, uplink signals including different information to an external device in proximity to the touch array through the touch electrodes, and to receive, from the external device, a sensing signal generated by the external device using at least some of the uplink signals; and a touch controller configured to determine the uplink period based on the image data.Type: ApplicationFiled: February 29, 2024Publication date: January 16, 2025Inventors: Ji Hoon KIM, Keum Dong JUNG, Jang Hui KIM
-
Publication number: 20240411396Abstract: A display device including: a touch array including a plurality of touch electrodes; and a touch driver configured to sense a touch adjacent to the touch array, wherein the touch driver transmits, to an external device, uplink signals in which different position information are included through at least some of the touch electrodes in a first time period, and receives, from the external device, position information of the external device on the touch array in a second time period after the first time period, and wherein the position information of the external device is calculated by the external device, using the uplink signals.Type: ApplicationFiled: February 28, 2024Publication date: December 12, 2024Inventors: Keum Dong JUNG, Jang Hui KIM, Bo Hwan LEE
-
Publication number: 20240377909Abstract: A display device includes a display panel including a plurality of pixels, a display driver configured to display an image on the display panel in a frame period unit, to display the image on the display panel in a display period of the frame period, and to not display the image in a blank period of the frame period, a touch panel including touch electrodes, and a touch driver configured to sense a touch adjacent to the touch panel via the touch electrodes, and to transmit an uplink signal to an external device through the touch electrodes in a first time period, the first time period being in the blank period.Type: ApplicationFiled: January 22, 2024Publication date: November 14, 2024Inventors: Keum Dong JUNG, Jang Hui KIM, Ji Hoon KIM, Bo Hwan LEE
-
Publication number: 20240370115Abstract: A touch device includes a touch panel including touch electrodes, and a touch driver adjacent to the touch panel, configured to sense a touch of a user, configured to transmit uplink signals including position information of the touch electrodes to an active pen through at least some of the touch electrodes in a first touch period, and configured to receive a sensing signal including position information of the active pen, which is calculated using the uplink signals, from the active pen in a second touch period after the first touch period.Type: ApplicationFiled: November 13, 2023Publication date: November 7, 2024Inventors: Keum Dong JUNG, Jang Hui KIM, Sang Hun PARK, Yong Sub SO, Da Eun YI, Bo Hwan LEE, Byeong Kyu JEON
-
Patent number: 12130987Abstract: A sensor device including: first sensors; second sensors configured to form capacitances with the first sensors; a sensor transmitter connected to the first sensors and configured to supply driving signals having a first frequency to the first sensors; and a sensor receiver connected to the second sensors and configured to receive sensing signals from the second sensors, wherein the sensor receiver includes: a multipath filter having a center frequency set to the first frequency; and a first chopper integrator connected to the multipath filter, and having a center frequency set to the first frequency.Type: GrantFiled: December 6, 2022Date of Patent: October 29, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Keum Dong Jung, Oh Jo Kwon, Ji Woong Kim, Hyung Gun Ma, Seong An Park, Sang Hyun Heo
-
Patent number: 12133443Abstract: A display device including: a base layer; a backplane structure provided on the base layer, the backplane structure including pixel circuits and a sensor circuit; a pixel layer provided on the backplane structure, the pixel layer including light emitting elements respectively connected to the pixel circuits and a light receiving element connected to the sensor circuit; an encapsulation layer covering the pixel layer; a light blocking member provided on the encapsulation layer, wherein the light blocking member Includes openings overlapping the light emitting elements and the light receiving element; and a color filter provided on the encapsulation layer and covering the light blocking member wherein the light emitting elements include light emitting layers, the light receiving element includes a light receiving layer, and at least one of the openings of the light blocking member overlaps one of the light emitting layers and the light receiving layer.Type: GrantFiled: October 27, 2021Date of Patent: October 29, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Suk Kim, Gee Bum Kim, Tae Hoon Yang, Byeong Wook Yoo, Dae Young Lee, Keum Dong Jung
-
Patent number: 12125426Abstract: A data driving circuit includes: a resistor string in which a plurality of resistors are connected in series; and a plurality of data channels connected to a high voltage node, intermediate voltage nodes, and a low voltage node of the resistor string and configured to convert a digital data signal into an analog data voltage. Each of the plurality of data channels includes: a main digital-to-analog converter connected to the high voltage node, the intermediate voltage nodes, and the low voltage node, a multiplier connected to an output terminal of the main digital-to-analog converter, a sub digital-to-analog converter connected to some of the high voltage node, the intermediate voltage nodes, and the low voltage node, and a voltage synthesizer connected to an output terminal of the multiplier and an output terminal of the sub digital-to-analog converter.Type: GrantFiled: June 16, 2023Date of Patent: October 22, 2024Assignees: SAMSUNG DISPLAY CO., LTD, KOREAN ADVANCE INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hyung Gun Ma, Gyu Wan Lim, Gyeong Gu Kang, Hyun Sik Kim, Keum Dong Jung, Moon Jae Jeong
-
Publication number: 20240310949Abstract: A display device includes: a touch sensing unit on a front surface of an image display area and configured to sense a location of a touch; a display driver circuit configured to select one of first to third temperature sensing modes during a predetermined temperature sensing period and to generate at least one of first to third mode sensing control signals according to the selected temperature sensing mode; and a touch driver circuit configured to generate at least one of first to third temperature sensing map data in response to at least one of the first to third mode sensing control signals, wherein the display driver circuit is configured to compensate for image data based on at least one of the first to third temperature sensing map data and to display an image according to the compensated image data in the display area.Type: ApplicationFiled: October 26, 2023Publication date: September 19, 2024Inventors: Keum Dong JUNG, Sang Hun PARK, Yong Sub SO, Da Eun YI, Bo Hwan LEE, Byeong Kyu JEON
-
Patent number: 12086345Abstract: A sensing panel includes a touch sensor that obtains information of a touch input in a sensing area, and a biometric sensor that obtains biometric information in a biometric sensing area. The touch sensor includes sensing pattern layers in the sensing area. The sensing pattern layers include cell electrodes and bridge electrodes electrically connecting the cell electrodes. The biometric sensor includes biometric sensing pattern layers in the biometric sensing area and trace lines electrically connected to the biometric sensing pattern layers. The trace lines and at least a portion of the bridge electrodes are disposed on a same layer. The trace lines bypass the bridge electrodes in a plan view.Type: GrantFiled: January 31, 2023Date of Patent: September 10, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Keum Dong Jung, Hyoung Wook Jang
-
Patent number: 12067803Abstract: There are provided a fingerprint sensor and a display device including the same. The fingerprint sensor includes a base substrate in which a first sensing region and a second sensing region are defined on a plane, first photo sensors disposed on the first sensing region of the base substrate, and second photo sensors disposed on the second sensing region of the base substrate. The first sensing region has an area larger than that of the second sensing region, and the first photo sensor has a width wider than that of the second photo sensor.Type: GrantFiled: March 3, 2023Date of Patent: August 20, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Soo Jung Lee, Keum Dong Jung, Yu Na Kim, Il Nam Kim
-
Publication number: 20240176450Abstract: An input sensing device includes first driving electrodes, second driving electrodes, and sensing electrodes, and a sensing driver that transmits a first driving signal to the first driving electrodes at a first frequency, transmits a second driving signal to the second driving electrodes at a second frequency, and determines a touch or approach of an external object based on sensing signals received from the sensing electrodes. The sensing driver includes analog front-end circuits that separate a sensing signal of the first frequency and a sensing signal of the second frequency that are received from the respective sensing electrodes, and generate digital sensing data based on a result of a recombination of the separated sensing signals.Type: ApplicationFiled: February 5, 2024Publication date: May 30, 2024Inventors: JI WOONG KIM, Moon Jae Jeong, Hyung Gun Ma, Tae Hun Lee, Keum Dong Jung, Sang Hyun Heo
-
Patent number: 11947764Abstract: An input sensing unit includes a touch sensing unit, which includes a plurality of driving electrodes, a plurality of sensing electrodes, and a driving signal generating unit which provides driving signals to the driving electrodes. The sensing electrodes are insulated from and intersect the driving electrodes. The driving signal generating unit includes touch drivers connected to driving electrodes and a digital-to-analog converter configured to provide a first signal or a second signal, and each of the touch drivers is connected to a preset number of driving electrodes among the driving electrodes.Type: GrantFiled: May 23, 2022Date of Patent: April 2, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ji Woong Kim, Oh Jo Kwon, Kyung Tea Park, Keum Dong Jung, Sang Hyun Heo
-
Patent number: 11893186Abstract: An input sensing device includes first driving electrodes, second driving electrodes, and sensing electrodes, and a sensing driver that transmits a first driving signal to the first driving electrodes at a first frequency, transmits a second driving signal to the second driving electrodes at a second frequency, and determines a touch or approach of an external object based on sensing signals received from the sensing electrodes. The sensing driver includes analog front-end circuits that separate a sensing signal of the first frequency and a sensing signal of the second frequency that are received from the respective sensing electrodes, and generate digital sensing data based on a result of a recombination of the separated sensing signals.Type: GrantFiled: February 28, 2023Date of Patent: February 6, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ji Woong Kim, Moon Jae Jeong, Hyung Gun Ma, Tae Hun Lee, Keum Dong Jung, Sang Hyun Heo
-
Publication number: 20240016454Abstract: The terminal may include a touch panel including first electrodes arranged in a first direction and second electrodes arranged in the second direction intersecting the first direction, a display panel attached to the touch panel and to display an image, and a processor to control the touch panel and the display panel. In a measuring mode, the processor is configured to: apply a driving signal to the touch panel, the touch panel being configured to form an electric field and/or magnetic field when the driving signal is applied, and determine body composition of a user based on a sensing signal output from the touch panel in accordance with eddy current, the eddy current being induced to a body of the user by the electric field and/or magnetic field formed around the touch panel.Type: ApplicationFiled: September 25, 2023Publication date: January 18, 2024Inventors: Yu Na KIM, Keum Dong JUNG, Soo Jung LEE
-
Patent number: 11868560Abstract: A sensor device of the present invention includes first sensors; second sensors forming capacitance with the first sensors; a multi-frequency generator generating a first frequency signal and a second frequency signal having different frequencies; a sensor transmitter supplying first driving signals based on the first frequency signal to first sensors of a first group among the first sensors, supplying second driving signals based on the second frequency signal to first sensors of a second group among the first sensors, and simultaneously supplying the first driving signals and the second driving signals; and a sensor receiver simultaneously receiving sensing signals from the second sensors.Type: GrantFiled: June 27, 2022Date of Patent: January 9, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Keum Dong Jung, Ji Woong Kim, Hyung Gun Ma, Kyung Tea Park, Moon Jae Jeong, Sang Hyun Heo
-
Patent number: 11869438Abstract: A display device includes a display panel including pixels connected to scan lines and data lines, and connection line connected to the scan lines, and a scan driver which drives scan lines. The scan driver includes a scan signal output circuit which outputs a first output signal as a scan signal to a first output line and outputs a second output signal to a second output line, a signal distribution circuit which outputs the first output signal to a first or third connection line and outputs the second output signal to a second or fourth connection line in response to first and second distribution control signals, and a scan-off circuit which outputs gate-off level to at least one of the scan lines in response to first and second scan-off control signals.Type: GrantFiled: February 15, 2022Date of Patent: January 9, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyung Gun Ma, Ji Woong Kim, Jun Yong Song, Seong Joo Lee, Keum Dong Jung, Sang Hyun Heo
-
Publication number: 20240004499Abstract: An input sensing device includes first driving electrodes, second driving electrodes, and sensing electrodes, and a sensing driver that transmits a first driving signal to the first driving electrodes at a first frequency, transmits a second driving signal to the second driving electrodes at a second frequency, and determines a touch or approach of an external object based on sensing signals received from the sensing electrodes. The sensing driver includes analog front-end circuits that separate a sensing signal of the first frequency and a sensing signal of the second frequency that are received from the respective sensing electrodes, and generate digital sensing data based on a result of a recombination of the separated sensing signals.Type: ApplicationFiled: February 28, 2023Publication date: January 4, 2024Inventors: JI WOONG KIM, Moon Jae Jeong, Hyung Gun Ma, Tae Hun Lee, Keum Dong Jung, Sang Hyun Heo