公开(公告)号：US11023060B2

公开(公告)日：2021-06-01

申请号：US16223025

申请日：2018-12-17

Applicant: LG DISPLAY CO., LTD.

Inventor： SeungHwan Shin ,  YoungMin Jeong ,  Daeyoung Seo ,  Soyoung Lee

IPC: G06F3/041 ,  G06F3/042 ,  G06F3/044 ,  G06F3/047 ,  G02F1/1333 ,  G02F1/1362

Abstract: A display device having an open area and a non-open area surrounding the open area includes a pixel electrode and a common electrode disposed in the open area; a gate line disposed to extend in a first direction in the non-open area surrounding the open area and transmitting a gate signal to the pixel electrode; a data line disposed to extend in a second direction in the non-open area and transmitting a data signal to the pixel electrode; a plurality of sensing lines disposed in the non-open area and transmitting a common voltage or a touch scan signal to the common electrode; and a photo touch sensor disposed in the non-open area and electrically connected to one of the plurality of sensing lines.

公开(公告)号：US10571726B2

公开(公告)日：2020-02-25

申请号：US15682944

申请日：2017-08-22

Applicant: LG DISPLAY CO., LTD.

Inventor： SeungHwan Shin ,  Gyutae Kang ,  Daeyoung Seo ,  Soyoung Lee ,  YoungMin Jeong

IPC: G02F1/133 ,  G02F1/1368 ,  H01L27/144 ,  G09G3/36 ,  H01L27/32 ,  G02F1/1362 ,  H01L31/113 ,  H01L27/12 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3275

Abstract: A display panel and display device are provided that may be capable of sensing an external light source, such as a laser. The display device may include a display panel including gate lines, data lines, and sub-pixels defined at intersections between the gate lines and the data lines; a light source-sensing circuit in an inactive area of the sub-pixels to sense an external light source; and a monochromatic color filter pattern disposed on a sensor transistor of the light source-sensing circuit. Thus, the incident amount of an external light source other than a laser can be reduced, and the incident amount of the laser can be increased. Accordingly, it may be possible to decrease an initial off-current caused by an external light source and improve the sensitivity in laser sensing. Thus, the size of the sensor transistor can be reduced and aperture ratio can be increased.

公开(公告)号：US09626901B2

公开(公告)日：2017-04-18

申请号：US14501872

申请日：2014-09-30

Applicant: LG Display Co., Ltd.

Inventor： Soyoung Lee ,  Youngjik Jo

IPC: G02F1/13 ,  G09G3/3225 ,  G02F1/1362 ,  H01L27/02 ,  G02F1/1345 ,  H01L27/32

CPC classification number: G09G3/3225 ,  G02F1/13452 ,  G02F1/136204 ,  G02F1/136259 ,  G02F1/136286 ,  H01L27/0296 ,  H01L27/3276

Abstract: Discloses is a display device that may include a display panel; sub-pixels in a display area of the display panel; upper and lower data lines separated in a central portion of the display area; and an electrostatic discharge circuit formed in the central portion of the display area, the electrostatic discharge circuit electrically connected to the upper and lower data lines.

公开(公告)号：US20240178361A1

公开(公告)日：2024-05-30

申请号：US18389134

申请日：2023-11-13

Applicant: LG DISPLAY CO., LTD.

Inventor： HyunGon Kim ,  KwangSu Lim ,  Soyoung Lee ,  YoungIn Jang

IPC: H01L33/62 ,  H01L25/16

CPC classification number: H01L33/62 ,  H01L25/167 ,  H01L2933/0066

Abstract: In one aspect, a display device includes a substrate having pixels each including a plurality of sub-pixels; a plurality of light-emitting elements on the plurality of sub-pixels and each including one or more n-type electrodes and a p-type electrode; a first connection electrode on each of the plurality of light-emitting elements of the plurality of sub-pixels and including a concave portion that overlaps the one or more n-type electrodes; and a second connection electrode on each of the plurality of light-emitting elements of the plurality of sub-pixels and including a convex portion that overlaps the p-type electrode. The concave portion and the convex portion extend in a first direction in each of a first subset of the plurality of sub-pixels, and the concave portion and the convex portion extend in a second direction different from the first direction in each of a second subset of the plurality of sub-pixels.

公开(公告)号：US20220208804A1

公开(公告)日：2022-06-30

申请号：US17523905

申请日：2021-11-10

Applicant: LG Display Co., Ltd.

Inventor： Hun Jang ,  Ji-Heun Lee ,  Soyoung Lee

IPC: H01L27/12

Abstract: A light emitting display panel includes a driving transistor, and a storage capacitor including at least three electrodes to reduce a size of the driving transistor or the storage capacitor. The light emitting display panel comprises a light emitting element, the driving transistor connected to the light emitting element, and the storage capacitor connected to a gate and a first electrode of the driving transistor. The driving transistor includes a light shielding electrode used as the gate of the driving transistor, a buffer covering the light shielding electrode, an active portion provided on an upper surface of the buffer, forming the first electrode, a second electrode and a semiconductor portion of the driving transistor, a gate insulating layer covering the active portion, and a gate electrode provided on an upper surface of the gate insulating layer and connected to the light shielding electrode.

公开(公告)号：US09837444B2

公开(公告)日：2017-12-05

申请号：US14953764

申请日：2015-11-30

Applicant: LG Display Co., Ltd.

Inventor： Youngmin Jeong ,  Seunghwan Shin ,  Daeyoung Seo ,  Soyoung Lee

IPC: H01L27/12 ,  G02F1/1362 ,  G02F1/1343

CPC classification number: H01L27/124 ,  G02F1/134363 ,  G02F1/136286 ,  G02F2001/13629 ,  G02F2001/136295 ,  G02F2201/40 ,  H01L27/1237 ,  H01L27/1259 ,  H01L27/1262 ,  H01L27/1288

Abstract: A display device is described that has reduced resistance in one or more of the gate, common, data electrical lines that control the operation of the pixels of the display device. Reduced resistance is achieved by forming additional metal and/or metal-alloy layers on the gate, common, and/or data lines in such a manner so that the cross-sectional area of those lines is increased. As a consequence, each such line is formed so as to be thicker than could otherwise be achieving without causing defects in the rubbing process of an alignment layer. Additionally, no widening of these lines is needed, thus preserving the aspect ratio of the device. The gate insulating and semiconducting layers that in part make up the thin film transistors that help control the operation of the pixels of the device may also be designed to take into account the increased thickness of the lines.