公开(公告)号：US20240423042A1

公开(公告)日：2024-12-19

申请号：US18742282

申请日：2024-06-13

Applicant: LG Display Co., Ltd.

Inventor： JoungMi Choi ,  EuiHyun Chung ,  Hyunguk Jang

IPC: H10K59/131 ,  H10K59/121

Abstract: A display device according to one or more examples may include a substrate, a pixel array layer located on the substrate and including a plurality of subpixels disposed in a display area where an image is displayed, and a base circuit layer located between the substrate and the pixel array layer and including a gate driving circuit disposed over the entire display area. A display panel and a display apparatus are also disclosed.

公开(公告)号：US20240260384A1

公开(公告)日：2024-08-01

申请号：US18449474

申请日：2023-08-14

Applicant: LG Display Co., Ltd.

Inventor： Sungwoo Jun ,  Hyunguk Jang ,  Youngsung Cho

IPC: H10K59/65 ,  H10K59/80

CPC classification number: H10K59/65 ,  H10K59/80518 ,  H10K59/80521

Abstract: A display device and a display panel are disclosed which comprise a first optical area included in a display area, the optical area for display an image displaying and being light transmittable. A normal area included in the display area is positioned around the first optical area, wherein each of the first optical area and the normal area includes a plurality of emission areas, wherein a light emitting element including an anode electrode, a light emitting layer, and a cathode electrode is disposed in each of the plurality of emission areas in the first optical area. An outer shape of the anode electrode disposed in the first optical area has a plurality of protrusions and a plurality of depressions that are alternately arranged, thereby reducing a flare due to lack of any angled portion in the anode electrode.

公开(公告)号：US10474280B2

公开(公告)日：2019-11-12

申请号：US15381410

申请日：2016-12-16

Applicant: LG Display Co., Ltd.

Inventor： Hyunguk Jang ,  Cheolse Kim ,  Sungchul Kim ,  Sanghyuck Bae ,  Sungsu Han ,  Suyun Ju ,  Doyoung Jung

IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/038 ,  G06F3/044

Abstract: A touch sensing system is disclosed. The touch sensing system includes an active stylus pen that generates a first pen driving signal for detecting a touch input in synchronization with a touch driving signal input from a touch screen and a second pen driving signal for detecting an additional input related to an additional function of the active stylus pen in a touch driving period and outputs the first and second pen driving signals to the touch screen; and a touch driving device that applies the touch driving signal to the touch screen, senses the first pen driving signal in a first period of the touch driving period, and senses the second pen driving signal in a second period of the touch driving period.

公开(公告)号：US10324547B2

公开(公告)日：2019-06-18

申请号：US15384766

申请日：2016-12-20

Applicant: LG Display Co., Ltd.

Inventor： Sungsu Han ,  Hyunguk Jang ,  Sungchul Kim ,  Sanghyuck Bae ,  Suyun Ju ,  Doyoung Jung

IPC: G06F3/038 ,  G06F3/041 ,  G06F3/0354 ,  G06F3/044

Abstract: An active stylus pen according to the present invention includes a first signal processor configured to generate a touch frame recognition signal for discriminating touch frames on the basis of sub-pulses corresponding to part of each touchscreen driving signal received from a touchscreen and a second signal processor configured to generate a pen driving signal synchronized with main pulses of each touchscreen driving signal other than the sub-pulses and to vary the pen driving signal in units of a touch frame according to the touch frame recognition signal such that additional pen information is reflected in the pen driving signal.

公开(公告)号：US10241597B2

公开(公告)日：2019-03-26

申请号：US15392783

申请日：2016-12-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Doyoung Jung ,  Cheolse Kim ,  Buyeol Lee ,  Hyunguk Jang ,  Sanghyuck Bae

IPC: G06F3/01 ,  G06F3/03 ,  G06F3/041 ,  G06F3/044 ,  G06F3/046 ,  G06F3/043 ,  G06F3/048 ,  H01Q1/24 ,  G06F3/038 ,  G06F3/0354

Abstract: An active stylus pen is insensitive to external noise and has enhanced sensing performance with respect to an uplink signal input from a touch screen. The active stylus pen includes a housing connected to a ground, a conductive tip protruding outwardly from one side of the housing and brought into contact with a touch screen, a conductor layer surrounding an outer surface of the housing with an insulator interposed therebetween, a pen driving circuit connected to the conductor layer, and a switch connecting the conductor layer and the pen driving circuit. The pen driving circuit is cased by the housing, receives an uplink signal and a touch sensor driving signal from the touch screen, generates a pen driving signal synchronized with the touch sensor driving signal and outputs the generated pen driving signal to the touch screen through the conductive tip.

公开(公告)号：US09946403B2

公开(公告)日：2018-04-17

申请号：US14984740

申请日：2015-12-30

Applicant: LG Display Co., Ltd.

Inventor： Sungchul Kim ,  Hyunguk Jang ,  Sanghyuck Bae ,  Sungsu Han ,  Suyun Ju ,  Doyoung Jung ,  Kyungjin Jang ,  Yoonion Hwang

IPC: G06F3/045 ,  G06F3/041 ,  G06F3/044 ,  G06F3/0354

CPC classification number: G06F3/0418 ,  G06F3/03545 ,  G06F3/0412 ,  G06F3/044

Abstract: A touch sensitive display device, a method for driving the same, and a driving circuit of the display device are disclosed. The touch sensitive display device comprises a display panel comprising a plurality of pixels and a plurality of touch sensors. Each touch sensor is connected to at least one respective pixel of the pixels, the display panel driven in a plurality of successive display frame periods and during each display frame period a respective frame of image data is driven to the pixels. A touch driving circuit drives touch driving signals to the touch sensors during a touch frame that begins in a first display frame period of the display frame periods and ends in a second display frame period of the display frame periods that immediately follows the first display frame period.