Patents by Inventor Jae-Hyeon JEON
Jae-Hyeon JEON 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: 11928070Abstract: A peripheral component interconnect express (PCIe) device includes a common function performing operations associated with a PCIe interface according to a function type, the common function being programmable to be a function type selected from a plurality function types, an access identification information controller generating first access identification information for allowing an access to the common function, and providing the first access identification information to an assigned system image to which the common function has been assigned, a data packet receiver receiving a data packet including target identification information indicating a target system image from the target system image, and an access allowance determiner determining whether or not to allow the target system image to access the common function based on the first access identification information and the target identification information.Type: GrantFiled: October 20, 2021Date of Patent: March 12, 2024Assignee: SK hynix Inc.Inventors: Yong Tae Jeon, Byung Cheol Kang, Seung Duk Cho, Sang Hyun Yoon, Se Hyeon Han, Jae Young Jang
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Publication number: 20240078963Abstract: A pixel connected to a first scan line includes a light-emitting element including an anode and a cathode, a first transistor including a first electrode, a second electrode, and a gate electrode connected to a first node, a first capacitor connected between the first node and a second node, a second transistor connected between the second electrode of the first transistor and the first node including a gate electrode connected to the first scan line, a third transistor including a first electrode, a second electrode connected to the second node, and a gate electrode connected to the first scan line, and a fourth transistor including a first electrode connected to a first driving voltage line, a second electrode connected to the first electrode of the first transistor, and a gate electrode connected to the first scan line.Type: ApplicationFiled: May 11, 2023Publication date: March 7, 2024Inventors: JIN-WOOK YANG, YU-CHOL KIM, DONGGYU LEE, JAEKEUN LIM, JAE-HYEON JEON
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Patent number: 11922866Abstract: A pixel includes: a first transistor including a gate electrode electrically connected to a first node, a second node to which a first power voltage for driving the light emitting element is applied, and a third node electrically connected to the light emitting element; a first emission control transistor having an on-off timing controlled by a first emission control signal; and a second emission control transistor having an on-off timing controlled by a second emission control signal. A time interval exists between a time at which the first emission control signal having a turn-on level is input such that a voltage of the second node is dropped from a bias voltage having a voltage level higher than a voltage level of the first power voltage and a time at which the second emission control signal having a turn-on level is input.Type: GrantFiled: April 12, 2023Date of Patent: March 5, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Young Ha Sohn, Se Hyuk Park, Jin Wook Yang, Dong Gyu Lee, Jae Hyeon Jeon
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Publication number: 20240062694Abstract: A display system includes a host processor configured to provide frame data using a scan order, and a display device including a display panel including pixels and a display panel driver configured to refresh the pixels according using the frame data and to provide the scan order to the host processor.Type: ApplicationFiled: March 28, 2023Publication date: February 22, 2024Inventors: DONGGYU LEE, SEHYUK PARK, JIN-WOOK YANG, JAE-HYEON JEON
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Publication number: 20240038143Abstract: A display device includes: a display panel which displays an image corresponding to each of a plurality of frames, and a source driver which drives the display panel. The plurality of frames includes a first frame operating at a first operating frequency, and a second frame operating at a frequency higher than the first operating frequency. The first frame includes a write cycle section, a hold cycle section, and a blank section including a standby section. The source driver operates in a normal driving mode during the write cycle section and the hold cycle section, and operates in a low-power driving mode during the standby section.Type: ApplicationFiled: April 7, 2023Publication date: February 1, 2024Inventors: JIN-WOOK YANG, SEHYUK PARK, DONGGYU LEE, JAE-HYEON JEON
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Publication number: 20240013709Abstract: A display device includes a display panel which includes first to nth pixel areas arranged in a direction, where n is a natural number greater than or equal to 2, an emission control driver which provides an emission control signal having a plurality of emission cycles corresponding to a number of outputs of a gate-on voltage during a frame period to the first to nth pixel areas, a power supply which generates first to nth bias voltages respectively provided to the first to nth pixel areas, and a timing controller which controls timings when the first to nth bias voltages are supplied to the first to nth pixel areas in a way such that a kth bias voltage is provided with a delay of one emission cycle from a (k?1)th bias voltage, where k is a natural number greater than or equal 2 and less than or equal n.Type: ApplicationFiled: February 7, 2023Publication date: January 11, 2024Inventors: DONGGYU LEE, SEHYUK PARK, YOUNGHA SOHN, JIN-WOOK YANG, JAE-HYEON JEON
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Publication number: 20240013728Abstract: A display device includes a display panel including pixels, and a display panel driver which starts a scan operation in synchronization with an input timing of input image data, performs the scan operation every a scan cycle in one frame, and delays a start of the scan operation of an (N+1)-th frame until the scan operation of an N-th frame ends when the input image data of the (N+1)-th frame is input during the scan operation of the N-th frame, where N is a positive integer.Type: ApplicationFiled: February 6, 2023Publication date: January 11, 2024Inventors: DONGGYU LEE, JIN-WOOK YANG, JAE-HYEON JEON
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Publication number: 20240013724Abstract: An electronic device includes a display panel which includes a plurality of pixels and displays an image at each of multiple frames, a driving circuit which drives the multiple frames at multiple operating frequencies, a voltage generator which provides a voltage to the display panel, and a drive controller. The drive controller includes a representative frequency calculator which calculates a representative frequency, based on operating frequencies of βnβ number of frames before one frame of the multiple frames, and a compensating signal calculator which outputs a compensating signal, based on the representative frequency and a count number in the one frame. The drive controller transmits the compensating signal to the voltage generator, the voltage includes a reference voltage, the voltage generator generates the reference voltage based on the compensating signal, and the voltage generator provides the reference voltage to each of the plurality of pixels.Type: ApplicationFiled: May 12, 2023Publication date: January 11, 2024Inventors: DONGGYU LEE, HONGSOO KIM, SEHYUK PARK, YOUNGHA SOHN, JIN-WOOK YANG, JAE-HYEON JEON
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Publication number: 20240005847Abstract: A display device includes: a pixel electrically connected to a data line, a write scan line, an initialization scan line, a compensation scan line, a transmission control line, and an emission control line; a first driving circuit configured to provide a write scan signal to the write scan line and a second driving circuit configured to receive a plurality of clock signals, each of which has a time duration of one unit horizontal period and provide an initialization scan signal, a compensation scan signal, a transmission control signal, and an emission control signal to the initialization scan line, the compensation scan line, the transmission control line, and the emission control line, respectively. Each of the initialization scan signal and the compensation scan signal has an activation interval of one unit horizontal periods or more.Type: ApplicationFiled: March 28, 2023Publication date: January 4, 2024Inventors: JIN-WOOK YANG, YU-CHOL KIM, SEHYUK PARK, DONGGYU LEE, JAE-HYEON JEON
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Publication number: 20230410742Abstract: A display device includes: a display panel and a panel driver for driving the display panel during a plurality of driving frames whose frequencies are varied. Among the driving frames, a first driving frame having a first frequency includes a first write period, and a second driving frame having a second frequency lower than the first frequency includes a second write period and a variable blank period. The panel driver includes a data driver and a driving controller. Each of the first and second write periods includes N horizontal periods (N is an integer number equal to or greater than 1), each of the N horizontal periods has a first duration, and each of the first and second write periods has a second duration corresponding to N times of the first duration. The driving controller applies a training synchronizing signal to the data driver during the variable blank period.Type: ApplicationFiled: March 27, 2023Publication date: December 21, 2023Inventors: DONGGYU LEE, JIN-WOOK YANG, JAE-HYEON JEON
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Publication number: 20230410723Abstract: A display device includes a display panel including a pixel which receives a luminance control voltage, a driving controller which receives an input image signal and a control signal and provides an output image signal to the display panel, and a voltage generator which generates the luminance control voltage in response to a voltage control signal from the driving controller. The driving controller determines a current operating frequency based on the control signal, and outputs the voltage control signal based on a difference value between the current operating frequency and a previous operating frequency and an operating time of the previous operating frequency when the current operating frequency is different from the previous operating frequency, where the luminance control voltage is changed from a first voltage level to a second voltage level based on the voltage control signal.Type: ApplicationFiled: March 13, 2023Publication date: December 21, 2023Inventors: SEHYUK PARK, DONGGYU LEE, JAE-HYEON JEON, JIN-WOOK YANG
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Publication number: 20230410741Abstract: A display device includes a light emitting element, a first transistor, and a second transistor connected between the first transistor and the light emitting element and including a gate electrode which receives an emission signal. One frame includes a first period a second period continuous with the first period. An emission off period of the emission signal has a first time duration during the first period, and the emission off period of the emission signal has a second time duration different from the first time duration during the second period.Type: ApplicationFiled: March 16, 2023Publication date: December 21, 2023Inventors: DONGGYU LEE, JAE-HYEON JEON, SEHYUK PARK, JIN-WOOK YANG
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Publication number: 20230401997Abstract: A display device includes a display panel including a pixel and a driving controller to drive the display panel. The driving controller generates a compensating signal, when a first driving frequency of a first frame is determined as being higher than a second driving frequency of a second frame by comparing a first cycle count value of the first frame with a second cycle count value of the second frame subsequent to the first frame.Type: ApplicationFiled: March 7, 2023Publication date: December 14, 2023Inventors: JAE-HYEON JEON, SEHYUK PARK, YOUNGHA SOHN, JIN-WOOK YANG, DONGGYU LEE
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Publication number: 20230306906Abstract: A display device is disclosed that includes a pixel. The pixel includes a first transistor electrode connected between a second node and a third node and including a gate electrode connected to a first node. A first capacitor is formed between the first node and a fourth node. A second capacitor is formed between the fourth node and a first power line. A second transistor is connected between a data line and the fourth node. An eighth transistor is connected between the first power line and the second node. A ninth transistor is connected between the second node and a bias power line. A sixth transistor is connected between the third node and a fifth node. A light emitting element is electrically connected between the fifth node and a second power line. A gate electrode of the eighth transistor and a gate electrode of the sixth transistor are connected to different gate lines.Type: ApplicationFiled: January 2, 2023Publication date: September 28, 2023Inventors: Jin Wook YANG, Dong Gyu LEE, Jae Hyeon JEON
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Publication number: 20230301149Abstract: A display device includes a display panel including a plurality of pixels. At least one of the pixel includes a light emitting diode, a first transistor connected between a power line receiving a power source voltage and an anode of the light emitting diode, a second transistor connected between a data line and a first reference node, a first capacitor connected between the power line and the first reference node, a second capacitor connected between the first reference node and a second reference node, a third transistor connected between the first refence node and a reference voltage line receiving a reference voltage, a fourth transistor connected between an initialization voltage line receiving an initialization voltage and a drain of the first transistor, and a fifth transistor connected between the drain of the first transistor and the anode of the light emitting diode.Type: ApplicationFiled: May 23, 2023Publication date: September 21, 2023Inventors: DONGGYU LEE, JIHYE KIM, JIN-WOOK YANG, JAE-HYEON JEON
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Patent number: 11758663Abstract: A display device includes a folding area, a first unfolding area located on a side of the folding area, and a second unfolding area located on a second side of the folding area. The display device further includes a display module which includes a display panel, and a first circuit board which is attached to the display panel and disposed under the display module, wherein the first circuit board includes a base film, a first driving integrated circuit (βICβ) disposed in the first unfolding area, and a second driving IC disposed in the second unfolding area where the first driving IC and the second driving IC do not overlap each other in a thickness direction during folding.Type: GrantFiled: August 22, 2022Date of Patent: September 12, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Won Tae Kim, Ji Hye Kim, Jae Hyeon Jeon
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Patent number: 11696475Abstract: A display device includes a display panel including a plurality of pixels. At least one of the pixel includes a light emitting diode, a first transistor connected between a power line receiving a power source voltage and an anode of the light emitting diode, a second transistor connected between a data line and a first reference node, a first capacitor connected between the power line and the first reference node, a second capacitor connected between the first reference node and a second reference node, a third transistor connected between the first reference node and a reference voltage line receiving a reference voltage, a fourth transistor connected between an initialization voltage line receiving an initialization voltage and a drain of the first transistor, and a fifth transistor connected between the drain of the first transistor and the anode of the light emitting diode.Type: GrantFiled: February 3, 2021Date of Patent: July 4, 2023Assignee: Samsung Display Co., Ltd.Inventors: Donggyu Lee, Jihye Kim, Jin-Wook Yang, Jae-Hyeon Jeon
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Patent number: 11676535Abstract: A pixel of a display device includes a light-emitting diode and a pixel circuit that provides a current corresponding to a data signal to the light-emitting diode in response to a plurality of scan signals and a light emission control signal. The light emission control signal includes a first section and a second section, the second section includes a light-emission-on section and a light-emission-off section, the light emission control signal has an active level in the light-emission-on section and has an inactive level in each of the first section and the light-emission-off section, and the light-emission-on section and the light-emission-off section of the light emission control signal may vary depending on a light emission ratio of a dimming mode.Type: GrantFiled: January 27, 2022Date of Patent: June 13, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jae-Hyeon Jeon, Donggyu Lee, Jin-Wook Yang
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Patent number: 11640810Abstract: A display apparatus includes an optical module, a display panel and a display panel driver. The display panel is disposed on the optical module. The display panel driver is configured to drive the display panel. The display panel includes a first display area including at least a portion overlapping with the optical module and a second display area not overlapping with the optical module in a plan view. The first display area includes pixels having a first pixel structure. The second display area includes pixels having a second pixel structure different from the first pixel structure.Type: GrantFiled: January 6, 2021Date of Patent: May 2, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ji Hye Kim, Young Ha Sohn, Jin-Wook Yang, Dong Gyu Lee, Jae-Hyeon Jeon
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Patent number: 11640794Abstract: A display device includes a first transistor including a first electrode connected to a first power line, a second electrode connected to a third node, and a gate electrode connected to a first node, a first capacitor formed between the first power line and a second node, a second capacitor formed between the first node and the second node, an emission transistor including a first electrode connected to the third node, a second electrode, and a gate electrode connected to an emission control line, and a light emitting element connected to the second electrode of the emission transistor and a second power line.Type: GrantFiled: February 25, 2022Date of Patent: May 2, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jin Wook Yang, Ji Hye Kim, Young Ha Sohn, Dong Gyu Lee, Jae Hyeon Jeon