公开(公告)号：US11488539B2

公开(公告)日：2022-11-01

申请号：US17245979

申请日：2021-04-30

Applicant: LG DISPLAY CO., LTD.

Inventor： JaeHoon Park ,  SeonYeong Kim

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

Abstract: A display device can include a display panel including a plurality of data lines, a plurality of scan lines, a plurality of light emission control lines, and a plurality of sub-pixels; a first driving circuit configured to drive the plurality of data lines; a second driving circuit configured to drive the plurality of scan lines; and a third driving circuit configured to drive the plurality of light emission control lines, in which the display panel includes an active area in which an image is displayed and a non-active area which is an edge area of the active area.

公开(公告)号：US09607560B2

公开(公告)日：2017-03-28

申请号：US13720970

申请日：2012-12-19

Applicant: LG Display Co., Ltd.

Inventor： SunUng Kim ,  JungSik Park ,  JunHo Yoo ,  JaeHoon Park

IPC: G09G3/36 ,  G09G3/20

CPC classification number: G09G3/3611 ,  G09G3/2092 ,  G09G3/3688 ,  G09G3/3696 ,  G09G2370/08 ,  G09G2370/14

Abstract: Discussed are an LCD device and a method of driving the same in which, by decreasing the number of lines of a PCB, the manufacturing cost is saved, and the influence of noise is reduced.

公开(公告)号：US12219815B2

公开(公告)日：2025-02-04

申请号：US17507440

申请日：2021-10-21

Applicant: LG Display Co., Ltd.

Inventor： JaeHoon Park

IPC: H01L27/14 ,  H10K59/121 ,  H01L27/12 ,  H01L29/786

Abstract: A display device can include a plurality of sub-pixels disposed on a substrate; a storage capacitor disposed in each of the plurality of sub-pixels; a buffer layer disposed on the storage capacitor; a transistor disposed on the buffer layer in each of the plurality of sub-pixels; and a light emitting element disposed on the transistor in each the plurality of sub-pixels, in which the plurality of sub-pixels include a first sub-pixel, a second sub-pixel, and a third sub-pixel, each of the first, second and third sub-pixels being configured to emit a different color of light, at least one of the plurality of sub-pixels includes a metal layer disposed below the transistor, and the metal layer is connected to one electrode of the storage capacitor.

公开(公告)号：US11043516B2

公开(公告)日：2021-06-22

申请号：US16542773

申请日：2019-08-16

Applicant: LG DISPLAY CO., LTD.

Inventor： KumMi Oh ,  Minseong Yun ,  JaeHoon Park

IPC: H01L27/144 ,  H01L27/32 ,  G09G3/3258 ,  G06K9/00

Abstract: A display device can include a display panel including a plurality of gate lines, a plurality of data lines and a plurality of subpixels; at least one display driving transistor disposed in each of the plurality of subpixels; a sensing transistor disposed in each of the plurality of subpixels; a driver circuit configured to control the sensing transistor; and a sensing circuit electrically connected to a first electrode of the sensing transistor, in which a gate electrode of the at least one display driving transistor and a gate electrode of the sensing transistor are disposed on opposite sides of an active layer in a top-down direction.

公开(公告)号：US11335757B2

公开(公告)日：2022-05-17

申请号：US16985081

申请日：2020-08-04

Applicant: LG Display Co., Ltd.

Inventor： Aram Kim ,  JaeHoon Park ,  YoungJang Lee ,  SeonYeong Kim

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

Abstract: The pixel circuit which controls the driving of the organic light emitting diode includes a driving TFT which supplies a driving current to the organic light emitting diode; a sampling TFT which samples a threshold voltage of the driving TFT; a first initializing TFT which supplies an initialization voltage to one electrode of the organic light emitting diode; and a storage capacitor which stores a voltage applied to the driving TFT, and at least one of the driving TFT, the sampling TFT, and the first initializing TFT includes a shielding electrode disposed between the substrate and the active layer. Therefore, even though the external light is irradiated onto a transparent substrate, a full white gray-level and a full black gray-level can be expressed so that the gray-level expressiveness may not be degraded.

公开(公告)号：US11164530B2

公开(公告)日：2021-11-02

申请号：US16684119

申请日：2019-11-14

Applicant: LG Display Co., Ltd.

Inventor： JaeHoon Park ,  TaeHyoung Moon ,  SeonYeong Kim

IPC: G09G3/3291 ,  H01L27/32

Abstract: A display panel and a display device. A driving voltage line disposed in an active area is disposed to overlap a reference voltage line. The aperture ratio of a display panel is improved, and the transparency of a transparent display device is improved. The width of the driving voltage line disposed in the display panel gradually decreases in a direction away from a driver circuit supplying a driving voltage. Differences in the variation of the driving voltage according to the areas of the display panel are reduced, thereby improving brightness uniformity of the display panel according to the areas of the display panel.

公开(公告)号：US11024233B2

公开(公告)日：2021-06-01

申请号：US16563397

申请日：2019-09-06

Applicant: LG DISPLAY CO., LTD.

Inventor： JaeHoon Park ,  SeonYeong Kim

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

Abstract: A display device can include a display panel including a plurality of data lines, a plurality of scan lines, a plurality of light emission control lines, and a plurality of sub-pixels; a first driving circuit configured to drive the plurality of data lines; a second driving circuit configured to drive the plurality of scan lines; and a third driving circuit configured to drive the plurality of light emission control lines, in which the display panel includes an active area in which an image is displayed and a non-active area which is an edge area of the active area.

公开(公告)号：US11023703B2

公开(公告)日：2021-06-01

申请号：US16658879

申请日：2019-10-21

Applicant: LG Display Co., Ltd.

Inventor： TaeHyoung Moon ,  JaeHoon Park

IPC: G06K9/00 ,  G06F3/044

Abstract: According to the embodiments of the present disclosure, an ultrasonic sensor, an ultrasonic sensing device, a display device, and a biometric information sensing method are provided, in which a first transistor and a second transistor disposed in respective pixels adjacent to each other are driven by a same scan line, and the first transistor controlling the application of a high voltage and the second transistor controlling sensing are configured with different channel types; therefore, a driving interval for generating ultrasonic waves is separated in time from a sensing interval for sensing reflected ultrasonic waves. Accordingly, an interval for applying the high voltage is reduced; therefore, power consumption can be reduced, and the degradation of components constituting the ultrasonic sensor can be overcome or reduced. In addition, sensing can be performed in an area in which ultrasonic waves are generated; thus, sensing sensitivity can be improved.