公开(公告)号：US20190204944A1

公开(公告)日：2019-07-04

申请号：US16195725

申请日：2018-11-19

Applicant: LG Display Co., Ltd.

Inventor： Jaehun JUN ,  Hyunkyu PARK

IPC: G06F3/041

CPC classification number: G06F3/0412 ,  G06F3/044

Abstract: Disclosed are a touch display device, a touch driving circuit, and a touch driving method. A touch display device, a touch driving circuit, and a touch driving method is capable of supplying touch driving signals having different signal characteristics (e.g., driving frequencies) to touch electrodes or sensing groups by considering such touch electrode-specific or sensing group-specific difference. By this configuration, without reducing touch sensitivity, the touch sensing time required to sense all of the touch electrodes can be reduced, and a display driving time can be significantly lengthened, making it possible to implement a display requiring a large screen and high-resolution.

公开(公告)号：US20170108993A1

公开(公告)日：2017-04-20

申请号：US15393166

申请日：2016-12-28

Applicant: LG Display Co., Ltd.

Inventor： Dukhyo LEE ,  Jaehun JUN ,  Hyeongwon KANG ,  Beomjin KIM

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044

Abstract: Disclosed herein are a method and circuit for driving touch sensors and a display device using the same. A method of driving touch sensors includes supplying a touch sensor driving signal to the touch sensors or an amplifier and sensing a touch input during a touch input sensing portion and measuring current noise received through the touch sensors without the touch sensor driving signal during a noise measurement portion.

公开(公告)号：US20210200354A1

公开(公告)日：2021-07-01

申请号：US17115229

申请日：2020-12-08

Applicant: LG DISPLAY CO., LTD.

Inventor： HyeongWon KANG ,  Jaehun JUN

IPC: G06F3/041 ,  H01L27/32 ,  G09G3/3275 ,  G06F3/044

Abstract: Embodiments of the present disclosure relate to a touch display device, a data driving circuit, and a touch sensing method. By sensing multiple data lines simultaneously using gate signals for display as touch driving pulses, it is possible to provide touch sensing without having a separate touch electrode for touch sensing and touch driving pulses. The touch sensing method includes outputting gate signals sequentially having a pulse section including two or more pulses to gate lines, by a gate driving circuit; outputting an image data voltage to data lines, by a source driving circuit; sensing the data lines by combining every N (N is a natural number of 2 or more) data lines or sensing a plurality of reference voltage lines by combining every N reference voltage lines, by a sensing circuit; and determining a touch or a touch coordinate, based on sensing values obtained by sensing of the sensing circuit.

公开(公告)号：US20210191554A1

公开(公告)日：2021-06-24

申请号：US17113601

申请日：2020-12-07

Applicant: LG DISPLAY CO., LTD.

Inventor： Jaehun JUN

IPC: G06F3/041 ,  G09G3/36 ,  G06K9/00 ,  G06F3/044

Abstract: Provided is a touch display device that can sense a touch input of a finger with the touch display device, recognize a finger touch position, specify a fingerprint sensing area, and sense a fingerprint in the fingerprint sensing area. Provided is also a touch display device that does not need a particularly fingerprint sensing line by performing fingerprint sensing using data lines of the touch display device and that can sense a fingerprint without decreasing a fingerprint sensing performance by minimizing a parasitic capacitance which can be generated in data lines, gate lines, touch electrodes, or the like at the time of sensing a fingerprint.

公开(公告)号：US20220206625A1

公开(公告)日：2022-06-30

申请号：US17410969

申请日：2021-08-24

Applicant: LG Display Co., Ltd.

Inventor： Hyunkyu PARK ,  Jaehun JUN ,  JuneYoun HWANG

IPC: G06F3/041 ,  G06F3/044

Abstract: Embodiments of the present disclosure relate to touch display devices, touch driving circuits, touch controllers, and sensing data transmission methods, provide effects of reducing the amount of sensing data transmitted as a touch driving circuit transmits encoded sensing data to a touch controller.

公开(公告)号：US20210405799A1

公开(公告)日：2021-12-30

申请号：US17472059

申请日：2021-09-10

Applicant: LG DISPLAY CO., LTD.

Inventor： Jaehun JUN ,  Hyunkyu PARK

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/3275

Abstract: A display device can include a display panel having a plurality of data lines, a plurality of gate lines and a plurality of subpixels are arrayed; a data driver configured to supply a video data signal including a first signal segment and a second signal segment maintaining a predetermined voltage difference to each of the plurality of data lines, and output readout data in response to signal sensing through each of the plurality of data lines to which the video data signal is supplied; and a touch controller configured to detect a touch based on the readout data, wherein each of the plurality of subpixels includes: an emitting device; a driving transistor; a first transistor; and a storage capacitor connected between a first node and a second node, and including a first plate and a second plate.

公开(公告)号：US20190051245A1

公开(公告)日：2019-02-14

申请号：US16051196

申请日：2018-07-31

Applicant: LG Display Co., Ltd.

Inventor： Jaehun JUN

IPC: G09G3/3258 ,  H01L51/52 ,  H01L27/32

Abstract: Embodiments disclosed herein relate to a display device, an electronic device, and a body-biasing circuit, and more particularly, to a display device, an electronic device, and a body biasing circuit, in which even if a common voltage is fluctuated due to noise, image quality degradation due to the fluctuation of the common voltage can be prevented through a body-biasing technique that applies a body voltage corresponding to the common voltage to a body of a driving transistor in a sub-pixel.

公开(公告)号：US20210200415A1

公开(公告)日：2021-07-01

申请号：US17115558

申请日：2020-12-08

Applicant: LG Display Co., Ltd.

Inventor： Jaehun JUN ,  HyeongWon KANG ,  MyungHo SHIN

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/20

Abstract: Embodiments of the present disclosure relate to a touch display device, a touch driving circuit, and a touch driving method, and more specifically, to a touch display device, a touch driving circuit, and a touch driving method for enabling a signal-to-noise ratio (SNR) and sensitivity of touch sensing to be improved by implementing a code division sensing effect for the self-capacitance sensing scheme.

公开(公告)号：US20200348786A1

公开(公告)日：2020-11-05

申请号：US16862139

申请日：2020-04-29

Applicant: LG DISPLAY CO., LTD.

Inventor： Jaehun JUN ,  Hyunkyu PARK

IPC: G06F3/041 ,  G06F3/044

Abstract: Provided are a display device and a data driver. The disp lay device comprises a display panel in which a plurality of data lines and a plurality of gate lines are disposed and a plurality of subpixels are arrayed; a data driver supplying a video data signal including a first signal segment and a second signal segment maintaining a predetermined voltage difference to each of the plurality of data lines and outputting readout data in response to signal sensing through each of the plurality of data lines to which the video data signal is supplied; and a touch controller detecting a touch or determining touch coordinates in accordance with the readout data. In the present invention, both display driving and touch sensing are performed without a dedicated touch sensor structure. It is possible to simultaneously perform the display driving and the touch sensing.

公开(公告)号：US20190180696A1

公开(公告)日：2019-06-13

申请号：US16210707

申请日：2018-12-05

Applicant: LG Display Co., Ltd.

Inventor： Hyunkyu PARK ,  Jaehun JUN

IPC: G09G3/3291 ,  G09G3/3266 ,  G09G3/3258 ,  H01L27/32 ,  G02B27/01 ,  H01L51/52

Abstract: Embodiments of the present disclosure relate to a micro display device and a display integrated circuit and, more specifically, to a micro display device and a display integrated circuit, which include: a pixel array chip including a pixel array zone in which a plurality of subpixels defined by a plurality of gate lines and a plurality of data lines are arranged, and a through-zone in which a plurality of through-electrodes connected to the plurality of gate lines and the plurality of data lines in an outer area of the pixel array zone are arranged; and a driver chip including a circuit zone in which a driver circuit configured to drive the plurality of gate lines and the plurality of data lines through the plurality of through-electrodes is disposed, and thus have a high yield.