公开(公告)号：US12230187B2

公开(公告)日：2025-02-18

申请号：US17961323

申请日：2022-10-06

Applicant: LG Display Co., Ltd.

Inventor： Joon Hee Lee ,  Jong Min Park ,  Nam Kon Ko ,  Dong Won Park ,  Yong Chul Kwon

IPC: G09G3/32 ,  G09G3/30 ,  G09G3/3225 ,  G09G3/3233 ,  G09G3/3275 ,  G09G3/3266

Abstract: A display panel includes a plurality of pixels. Each of the pixels includes a first transistor having a gate electrode connected to a first node and a first electrode to which a high level driving voltage is applied, a light emitting device having an anode electrode connected to a second electrode of the first transistor and a cathode electrode to which a low level driving voltage is applied, a second transistor applying a fixing voltage to the first node based on a first gate signal, a third transistor applying a data voltage to a second node based on the first gate signal, a fourth transistor connecting the second node to an input terminal for the low level driving voltage based on a second gate signal having a phase opposite to a phase of the first gate signal, and a capacitor between the first node and the second node.

公开(公告)号：US12094397B2

公开(公告)日：2024-09-17

申请号：US17522683

申请日：2021-11-09

Applicant: LG Display Co., Ltd.

Inventor： Yong Chul Kwon ,  Jung Jae Kim ,  Nam Kon Ko ,  Dong Won Park

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2320/0223 ,  G09G2330/025 ,  G09G2330/028

Abstract: An electroluminescence display apparatus includes a display panel including a plurality of pixels connected to a first power line, a power circuit converting a final feedback driving voltage input through a first input terminal thereof to output a high level driving voltage to a first position of the first power line through a first output terminal thereof, and a feedback control circuit receiving the high level driving voltage as a first feedback driving voltage, receiving a second feedback driving voltage from a second position of the first power line, and supplying the first input terminal of the power circuit with the final feedback driving voltage adjusted based on a first output contribution rate of the first feedback driving voltage and a second output contribution rate of the second feedback driving voltage.

公开(公告)号：US20220180800A1

公开(公告)日：2022-06-09

申请号：US17522683

申请日：2021-11-09

Applicant: LG Display Co., Ltd.

Inventor： Yong Chul Kwon ,  Jung Jae Kim ,  Nam Kon Ko ,  Dong Won Park

IPC: G09G3/32

Abstract: An electroluminescence display apparatus includes a display panel including a plurality of pixels connected to a first power line, a power circuit converting a final feedback driving voltage input through a first input terminal thereof to output a high level driving voltage to a first position of the first power line through a first output terminal thereof, and a feedback control circuit receiving the high level driving voltage as a first feedback driving voltage, receiving a second feedback driving voltage from a second position of the first power line, and supplying the first input terminal of the power circuit with the final feedback driving voltage adjusted based on a first output contribution rate of the first feedback driving voltage and a second output contribution rate of the second feedback driving voltage.