公开(公告)号：US09455309B2

公开(公告)日：2016-09-27

申请号：US14815159

申请日：2015-07-31

Applicant: LG DISPLAY CO., LTD.

Inventor： Kimin Choi ,  Yoonju Lee ,  Hongsuk Kim ,  Kwanghun Jeon

IPC: H01L27/14 ,  H01L27/32 ,  H01L51/52

CPC classification number: H01L27/3272 ,  H01L27/0248 ,  H01L27/3223 ,  H01L27/3262 ,  H01L27/3276 ,  H01L51/5221

Abstract: Discussed is an organic light emitting display device that may include a first pixel on a substrate; a switching transistor with a first active layer provided inside the first pixel; a driving transistor with a second active layer provided inside the first pixel; a first light shielding layer overlapping the second active layer; and a second light shielding layer overlapping the first active layer, wherein the first light shielding layer is connected with the driving transistor, and the second light shielding layer is electrically insulated from the first light shielding layer.

Abstract translation: 讨论了可以在基板上包括第一像素的有机发光显示装置; 具有设置在第一像素内的第一有源层的开关晶体管; 具有设置在所述第一像素内的第二有源层的驱动晶体管; 与第二有源层重叠的第一遮光层; 以及与第一有源层重叠的第二遮光层，其中第一遮光层与驱动晶体管连接，第二遮光层与第一遮光层电绝缘。

公开(公告)号：US11580908B2

公开(公告)日：2023-02-14

申请号：US17541717

申请日：2021-12-03

Applicant: LG DISPLAY CO., LTD.

Inventor： Kwanghun Jeon ,  Kimin Choi ,  HyoBin Choi

IPC: G09G3/3233

Abstract: Embodiments of the present disclosure are related to a driving circuit and a display device, by applying an initialization voltage to a sensing node between a driving transistor and a light-emitting element and sensing a voltage change of the sensing node according to driving the light-emitting element, a threshold voltage of the light-emitting element can be detected without turning-on the driving transistor. Furthermore, by turning on the driving transistor and falling a voltage of the sensing node before sensing the voltage of the sensing node, a voltage lower than the threshold voltage of the light-emitting element can be sensed and a variation of a characteristic value of the light-emitting element is detected, thus a circuit for sensing the characteristic value of the light-emitting element can be implemented easily.

公开(公告)号：US09786728B2

公开(公告)日：2017-10-10

申请号：US15272109

申请日：2016-09-21

Applicant: LG Display Co., Ltd.

Inventor： Kimin Choi ,  Yoonju Lee ,  Hongsuk Kim ,  Kwanghun Jeon

IPC: H01L27/14 ,  H01L27/32 ,  H01L51/52 ,  H01L27/02

CPC classification number: H01L27/3272 ,  H01L27/0248 ,  H01L27/3223 ,  H01L27/3262 ,  H01L27/3276 ,  H01L51/5221

Abstract: Discussed is an organic light emitting display device that may include a first pixel on a substrate; a switching transistor with a first active layer provided inside the first pixel; a driving transistor with a second active layer provided inside the first pixel; a first light shielding layer overlapping the second active layer; and a second light shielding layer overlapping the first active layer, wherein the first light shielding layer is connected with the driving transistor, and the second light shielding layer is electrically insulated from the first light shielding layer.