公开(公告)号：US20230197003A1

公开(公告)日：2023-06-22

申请号：US17966347

申请日：2022-10-14

Applicant: LG Display Co., Ltd.

Inventor： Jin Her ,  Hoon Jeong ,  Chul Sang Shin

IPC: G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/3233 ,  G09G3/2096 ,  G09G2300/0852 ,  G09G2300/0819 ,  G09G2310/0294 ,  G09G2330/021 ,  G09G2300/0828 ,  G09G2310/0286 ,  G09G2310/0289

Abstract: An electroluminescent display apparatus includes a plurality of pixels that each include a driving element including a first gate electrode connected to a first gate node, a second gate electrode facing the first gate electrode, a source electrode connected to a source node, and a drain electrode, a light emitting device connected between the source node and an input terminal for a low level driving voltage to emit light during an emission period, and an internal compensation circuit including a first capacitor connected to the first gate node and the source node. The internal compensation circuit samples a threshold voltage of the driving element during a sampling period that precedes the emission period. A sampling reinforcement voltage for increasing a sampling current flowing in the driving element is applied to the second gate electrode of the driving element during the sampling period.

公开(公告)号：US20250046250A1

公开(公告)日：2025-02-06

申请号：US18919834

申请日：2024-10-18

Applicant: LG Display Co., Ltd.

Inventor： Jin Her ,  Hoon Jeong ,  Chul Sang Shin

IPC: G09G3/3233 ,  G09G3/20

Abstract: An electroluminescent display apparatus includes a plurality of pixels that each include a driving element including a first gate electrode connected to a first gate node, a second gate electrode facing the first gate electrode, a source electrode connected to a source node, and a drain electrode, a light emitting device connected between the source node and an input terminal for a low level driving voltage to emit light during an emission period, and an internal compensation circuit including a first capacitor connected to the first gate node and the source node. The internal compensation circuit samples a threshold voltage of the driving element during a sampling period that precedes the emission period. A sampling reinforcement voltage for increasing a sampling current flowing in the driving element is applied to the second gate electrode of the driving element during the sampling period.

公开(公告)号：US12148377B2

公开(公告)日：2024-11-19

申请号：US17966347

申请日：2022-10-14

Applicant: LG Display Co., Ltd.

Inventor： Jin Her ,  Hoon Jeong ,  Chul Sang Shin

IPC: G09G3/3233 ,  G09G3/20

Abstract: An electroluminescent display apparatus includes a plurality of pixels that each include a driving element including a first gate electrode connected to a first gate node, a second gate electrode facing the first gate electrode, a source electrode connected to a source node, and a drain electrode, a light emitting device connected between the source node and an input terminal for a low level driving voltage to emit light during an emission period, and an internal compensation circuit including a first capacitor connected to the first gate node and the source node. The internal compensation circuit samples a threshold voltage of the driving element during a sampling period that precedes the emission period. A sampling reinforcement voltage for increasing a sampling current flowing in the driving element is applied to the second gate electrode of the driving element during the sampling period.

公开(公告)号：US09323116B2

公开(公告)日：2016-04-26

申请号：US14330513

申请日：2014-07-14

Applicant: LG Display Co., Ltd.

Inventor： Jae Hyun You ,  Chul Sang Shin

IPC: G02F1/1343

CPC classification number: G02F1/134363 ,  G02F2001/134318 ,  G02F2001/134372

Abstract: A pixel of an LCD device includes a gate line, a data line intersecting with the gate line, a gate insulation layer between the data line and the gate line, a thin film transistor formed at an intersection of the gate line and the data line, a planarization layer, a common electrode formed on the planarization layer, a pixel electrode formed over the common electrode, and an insulation layer between the common electrode and the pixel electrode. The common electrode is formed with groove extending along a region where the data line extends. Material of the common electrode is absent from the groove to reduce capacitance between the common electrode and the data line.

Abstract translation: LCD器件的像素包括栅极线，与栅极线相交的数据线，数据线和栅极线之间的栅极绝缘层，形成在栅极线和数据线的交叉点处的薄膜晶体管， 平坦化层，形成在平坦化层上的公共电极，形成在公共电极上的像素电极以及公共电极和像素电极之间的绝缘层。 公共电极形成有沿着数据线延伸的区域延伸的凹槽。 沟槽中不存在公共电极的材料，以减小公共电极和数据线之间的电容。