公开(公告)号：US20230142681A1

公开(公告)日：2023-05-11

申请号：US17979418

申请日：2022-11-02

Applicant: LG DISPLAY CO., LTD.

Inventor： Youngsung CHO ,  Byeong-Seong SO

IPC: H01L27/32 ,  G06F3/041 ,  G09G3/3266 ,  G09G3/3225

CPC classification number: H01L27/3276 ,  G06F3/0412 ,  G09G3/3266 ,  G09G3/3225 ,  G09G2300/0842 ,  G06F2203/04112 ,  G09G2300/0819 ,  G09G2300/0439 ,  G09G2300/0861 ,  G06F3/044

Abstract: A display device includes a display panel including a plurality of subpixels and a plurality of signal lines, the display panel defining a display area having a first optical area and a normal area outside of the first optical area, and a non-display area. The first optical area includes a plurality of light emitting areas and a plurality of first transmission areas, and the normal area includes a plurality of light emitting areas. The display panel includes a plurality of first horizontal lines, among the signal lines, disposed through the first optical area. The first horizontal lines include a bypass line connected to subpixels at both boundaries of the first optical area and not connected to other subpixels inside of the first optical area, and a non-bypass line connected to the subpixels at both boundaries of the first optical area and the subpixels inside of the first optical area.

公开(公告)号：US20230064771A1

公开(公告)日：2023-03-02

申请号：US17847487

申请日：2022-06-23

Applicant: LG DISPLAY CO., LTD.

Inventor： Youngsung CHO ,  Byeong-Seong SO

IPC: G09G3/3233

Abstract: A display device includes subpixels disposed in a display area for displaying an image. Each subpixel includes a light emitting element; a driving transistor for driving the light emitting element; and a transistor whose turn-on or turn-off may be controlled by a gate signal supplied through a gate line. The subpixels includes a subpixel disposed in a specific area in the display area, and such subpixel may include a compensation capacitor formed by overlapping of a gate node of the driving transistor or a connection pattern connected to the gate node of the driving transistor and the gate line. A voltage level of the gate signal supplied through the gate line is changed to a lower voltage level at a timing at which a data voltage or a voltage resulting from changing of the data voltage is applied to the gate node of the driving transistor.

公开(公告)号：US20210201827A1

公开(公告)日：2021-07-01

申请号：US17116750

申请日：2020-12-09

Applicant: LG Display Co., Ltd.

Inventor： Hyung-Uk JANG ,  Chul NAM ,  Byeong-Seong SO ,  Young-Sung CHO

IPC: G09G3/3291 ,  G09G3/3266

Abstract: An electroluminescent display device having a plurality of pixels is disclosed. Each pixel includes a driving transistor having a gate connected to a first node, a source connected to a third node, and a drain connected to a fourth node, to generate pixel current corresponding to a data voltage when a high-level source voltage is applied to the third node, a light emitting element connected between the fourth node and an input terminal for a low-level source voltage, an internal compensator including first and second capacitors, and switching transistors, and a kick-back compensation transistor to apply a DC voltage higher than an initialization voltage to the first node in a kick-back compensation period between an initialization period and a data writing period.

公开(公告)号：US20230196999A1

公开(公告)日：2023-06-22

申请号：US17952032

申请日：2022-09-23

Applicant: LG DISPLAY CO., LTD.

Inventor： Youngsung CHO ,  Byeong-Seong SO

IPC: G09G3/3233 ,  H01L27/32 ,  G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/3233 ,  H01L27/3258 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2300/0842 ,  G09G2300/0819 ,  G09G2330/021 ,  G09G2310/08 ,  G09G2300/0861 ,  G09G2354/00

Abstract: A display device includes: a display panel including a plurality of data lines, a plurality of gate lines, and a plurality of pixels connected to the plurality of data lines and the plurality of gate lines; a data driving circuit configured to supply data signals to the plurality of data lines; a gate driving circuit configured to supply gate signals to the plurality of gate lines; and a power supply circuit configured to supply a first body voltage and a second body voltage having a voltage level that is less than the first body voltage to the plurality of pixels, the plurality of pixels being selectively supplied with the first body voltage and the second body voltage.

公开(公告)号：US20220209068A1

公开(公告)日：2022-06-30

申请号：US17467991

申请日：2021-09-07

Applicant: LG Display Co., Ltd.

Inventor： Byeong-Seong SO

IPC: H01L33/38 ,  H01Q1/24 ,  H01L33/62 ,  H01L27/15 ,  H01L33/44

Abstract: Embodiments of the present disclosure relate to a display panel and a display device. The display panel comprises a substrate including a first display area and a second display area each having a plurality of sub-pixels, wherein the number of sub-pixels per unit area in the first display area is less than the number of sub-pixels per unit area in the second display area; a transistor layer disposed over the substrate and including a plurality of transistors; a planarization layer over the transistor layer; a light emitting element layer including a common electrode including a plurality of holes in the first display area, disposed over the planarization layer, and including a plurality of light emitting elements; and an antenna comprising a first antenna electrode disposed in the transistor layer and a second antenna electrode disposed over the first antenna electrode, disposed in the first display area and at least a part of which overlaps the plurality of holes. In the present disclosure, the reception rate of the antenna is improved.

公开(公告)号：US20200211468A1

公开(公告)日：2020-07-02

申请号：US16710848

申请日：2019-12-11

Applicant: LG Display Co., Ltd.

Inventor： Youngsung CHO ,  Byeong-Seong SO

IPC: G09G3/3266 ,  G09G3/3291 ,  G09G3/3258

Abstract: Disclosed is a light emitting display apparatus in which two of three scan signals used by a pixel driving circuit provided in one pixel are supplied through two scan lines provided in the pixel and the other remaining signal is supplied through a scan line provided in another pixel adjacent to the pixel.

公开(公告)号：US20200209995A1

公开(公告)日：2020-07-02

申请号：US16714438

申请日：2019-12-13

Applicant: LG Display Co., Ltd.

Inventor： Byeong-Seong SO ,  Youngsung CHO

IPC: G06F3/041 ,  H01Q1/24

Abstract: Disclosed is a display apparatus with an integrated antenna, in which an antenna and a touch screen are embedded, and the display apparatus comprises a display panel including a touch screen and an antenna electrode, wherein the display panel is divided into a display area and a non-display area surrounding the display area and includes a pixel array part including pixel driving circuits provided in the display area and an electrode array part provided on the pixel array part and including the touch screen and the antenna electrode, the display area includes a pixel including the pixel driving circuit, and a portion of the touch screen is open.