公开(公告)号：US12057071B2

公开(公告)日：2024-08-06

申请号：US18219544

申请日：2023-07-07

Applicant: LG Display Co., Ltd. ,  Industry-University Cooperation Foundation Hanyang University

Inventor： Harkjin Kim ,  Kwanghwan Ji ,  Byong-Deok Choi ,  Bum Sik Kim ,  Dong-Young Kim ,  Yong Duck Kim ,  June Hee Lee

IPC: G09G3/32 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3291

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0842 ,  G09G2310/08

Abstract: Disclosed are a display device and a method for driving a pixel of the display device. The device and method is capable of securing a time to sense a threshold voltage of a driving transistor and of compensating for the threshold voltage during operation of the pixel. Each of a plurality of pixels has a 5T1C structure including first to fourth transistors and a driving transistor. The first to fourth transistors are configured to apply driving signals through first to fourth scan lines, respectively. Thus, even without increasing the number of driving signals applied to each pixel, a long time for sensing a threshold voltage of each pixel can be secured.

公开(公告)号：US11616114B2

公开(公告)日：2023-03-28

申请号：US17110146

申请日：2020-12-02

Applicant: LG Display Co., Ltd.

Inventor： HoYoung Jeong ,  Harkjin Kim

IPC: H01L27/32 ,  H04N5/225 ,  G06F3/041 ,  G06F3/044 ,  G06V40/13

Abstract: A display device includes a display panel including a display area on which an image is displayed, a substrate, and an electrode located over the substrate and disposed in the display area; and a camera photographing a front of the display panel without being exposed to the front surface of the display panel, being disposed under the display area of the display panel, and overlapping with a first area in the display area, wherein the electrode overlaps with the first area, and wherein the electrode comprises a semi-transmissive layer positioned over the substrate, an optical path compensation layer positioned on the semi-transmissive layer, and a metal layer positioned on the optical path compensation layer.

公开(公告)号：US11963414B2

公开(公告)日：2024-04-16

申请号：US18174406

申请日：2023-02-24

Applicant: LG Display Co., Ltd.

Inventor： Hoyoung Jeong ,  Harkjin Kim

IPC: H10K59/131 ,  G06F3/041 ,  G06F3/044 ,  G06V40/13 ,  H04N23/57 ,  H10K59/126 ,  H10K59/40

CPC classification number: H10K59/131 ,  G06F3/0412 ,  G06F3/04164 ,  H04N23/57 ,  H10K59/126 ,  G06F3/0446 ,  G06F2203/04111 ,  G06V40/1306 ,  H10K59/40

Abstract: A display device includes a display panel including a display area on which an image is displayed, a substrate, and an electrode located over the substrate and disposed in the display area; and a camera photographing a front of the display panel without being exposed to the front surface of the display panel, being disposed under the display area of the display panel, and overlapping with a first area in the display area, wherein the electrode overlaps with the first area, and wherein the electrode comprises a semi-transmissive layer positioned over the substrate, an optical path compensation layer positioned on the semi-transmissive layer, and a metal layer positioned on the optical path compensation layer.

公开(公告)号：US20240029651A1

公开(公告)日：2024-01-25

申请号：US18219544

申请日：2023-07-07

Applicant: LG Display Co., Ltd. ,  Industry-University Cooperation Foundation Hanyang University

Inventor： Harkjin Kim ,  Kwanghwan Ji ,  Byong-Deok Choi ,  Bum Sik Kim ,  Dong-Young Kim ,  Yong Duck Kim ,  June Hee Lee

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3291

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2310/08 ,  G09G2300/0842

Abstract: Disclosed are a display device and a method for driving a pixel of the display device. The device and method is capable of securing a time to sense a threshold voltage of a driving transistor and of compensating for the threshold voltage during operation of the pixel. Each of a plurality of pixels has a 5T1C structure including first to fourth transistors and a driving transistor. The first to fourth transistors are configured to apply driving signals through first to fourth scan lines, respectively. Thus, even without increasing the number of driving signals applied to each pixel, a long time for sensing a threshold voltage of each pixel can be secured.

公开(公告)号：US11108026B2

公开(公告)日：2021-08-31

申请号：US16669182

申请日：2019-10-30

Applicant: LG Display Co., Ltd.

Inventor： Harkjin Kim ,  Hoyoung Jeong ,  Shin-Bok Lee

IPC: H01L51/52 ,  H01L51/50 ,  H01L27/32 ,  H01L27/15

Abstract: An electro-luminescence display apparatus comprises a transparent substrate; a thin-film transistor array disposed on the transparent substrate; a first electrode disposed on the thin-film transistor array; an electro-luminescence diode disposed on the first electrode; a second electrode disposed on the electro-luminescence diode; an encapsulation unit disposed on the second electrode; and an external light-absorbing layer disposed on the encapsulation unit and absorbing external light that passes through the transparent substrate.