公开(公告)号：US20210248964A1

公开(公告)日：2021-08-12

申请号：US17245979

申请日：2021-04-30

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：US20200168164A1

公开(公告)日：2020-05-28

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：US20210043709A1

公开(公告)日：2021-02-11

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

Abstract: According to an aspect of the present disclosure, 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.