公开(公告)号：US10475393B2

公开(公告)日：2019-11-12

申请号：US15826000

申请日：2017-11-29

Applicant: LG DISPLAY CO., LTD.

Inventor： KyoungWon Lee ,  ChangHoon Jeon

IPC: G09G3/32 ,  G09G3/34 ,  G09G3/30 ,  G09G3/3258 ,  G09G3/3233 ,  G09G3/3266

Abstract: An electroluminescent display device includes a pixel area including a plurality of sub-pixels displaying an image signal at a specific refresh rate, a plurality of ELVDD lines electrically connected to the plurality of sub-pixels, a plurality of data lines electrically connected to the plurality of sub-pixels, a plurality of scan lines electrically connected to the plurality of sub-pixels, a plurality of EM lines electrically connected to the plurality of sub pixels, a scan driver sequentially supplying a scan signal to the plurality of scan lines and sequentially supplying an EM signal having a specific duty ratio pattern configured to control a dimming level of the pixel area to the plurality of EM lines, and a driving unit electrically connected to the plurality of data lines and the scan driver, and configured to control the dimming level according to a dimming control signal.

公开(公告)号：US20240062728A1

公开(公告)日：2024-02-22

申请号：US18499105

申请日：2023-10-31

Applicant: LG Display Co., Ltd.

Inventor： Nakyoon Kim ,  ChangHoon Jeon ,  Hongsoon Kim

IPC: G09G3/3291 ,  G09G3/20 ,  G09G3/3233

CPC classification number: G09G3/3291 ,  G09G3/2096 ,  G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2320/0257

Abstract: The present disclosure relates to display device, display panel, and display driving method. Disclosed herein is a display device including a display panel in which a light emitting element, a driving transistor configured to provide a driving current to a light emitting element using a driving voltage, and a plurality of switching transistors configured to control driving of the driving transistor are disposed; a gate driving circuit configured to supply a plurality of scan signals to the display panel through a plurality of gate lines; an emission driving circuit configured to supply a plurality of emission signals to the display panel through a plurality of emission signal lines; a data driving circuit configured to supply a data voltage to the display panel; and a timing controller configured to, in a low speed mode in which the display panel is operated at a low driving frequency, control the driving current to be applied to the driving transistor during a first emission control period after a bias voltage is applied to the driving transistor, and control the driving current to be applied to the light emitting element through the driving transistor during a second emission control period.

公开(公告)号：US10366656B2

公开(公告)日：2019-07-30

申请号：US15598887

申请日：2017-05-18

Applicant: LG DISPLAY CO., LTD.

Inventor： ChangHoon Jeon ,  Sunghoon Rha

IPC: G09G3/3258 ,  G09G3/3291 ,  H01L27/32 ,  G09G3/3233 ,  H01L27/12 ,  H01L29/786

Abstract: Discussed herein are an OLED display device and a method of driving the same. The OLED display device includes according to an embodiment an organic light-emitting diode; a driving transistor involved in driving the organic light-emitting diode and including a bottom gate electrode, an oxide semiconductor layer, a source electrode, a drain electrode and a top gate electrode; a first switching transistor electrically connected to the bottom gate electrode of the driving transistor and involved in transmitting a data voltage to control the driving transistor; a storage capacitor electrically connected to the bottom gate electrode and involved in charging the data voltage; a second switching transistor configured to store a threshold voltage in the storage capacitor; a compensating transistor directly connected to the top gate electrode of the driving transistor to compensate for a deviation in the threshold voltage of the driving transistor; and a compensating capacitor disposed between the source electrode of the driving transistor and a source electrode of the compensating transistor and storing the threshold voltage therein.

公开(公告)号：US20230145805A1

公开(公告)日：2023-05-11

申请号：US17975512

申请日：2022-10-27

Applicant: LG Display Co., Ltd.

Inventor： Nakyoon Kim ,  ChangHoon Jeon ,  Hongsoon Kim

IPC: G09G3/3291 ,  G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G3/2096 ,  G09G2310/08 ,  G09G2300/0842 ,  G09G2300/0426 ,  G09G2320/0257 ,  G09G2320/0247

Abstract: The present disclosure relates to display device, display panel, and display driving method. Disclosed herein is a display device including a display panel in which a light emitting element, a driving transistor configured to provide a driving current to a light emitting element using a driving voltage, and a plurality of switching transistors configured to control driving of the driving transistor are disposed; a gate driving circuit configured to supply a plurality of scan signals to the display panel through a plurality of gate lines; an emission driving circuit configured to supply a plurality of emission signals to the display panel through a plurality of emission signal lines; a data driving circuit configured to supply a data voltage to the display panel; and a timing controller configured to, in a low speed mode in which the display panel is operated at a low driving frequency, control the driving current to be applied to the driving transistor during a first emission control period after a bias voltage is applied to the driving transistor, and control the driving current to be applied to the light emitting element through the driving transistor during a second emission control period.

公开(公告)号：US20160172428A1

公开(公告)日：2016-06-16

申请号：US14568042

申请日：2014-12-11

Applicant: LG Display Co., Ltd.

Inventor： Janghoon Song ,  ChangHoon Jeon ,  JungJoo Lee

IPC: H01L27/32 ,  H01L51/00

CPC classification number: H01L27/3276 ,  H01L27/3297 ,  H01L51/0097 ,  H01L2251/5338 ,  Y02E10/549 ,  Y02P70/521

Abstract: There is provided a flexible display having a plurality of innovations configured to allow bending of a portion or portions to reduce apparent border size and/or utilize the side surface of an assembled flexible display.

Abstract translation: 提供了一种柔性显示器，其具有多个创新，其被配置为允许部分或部分的弯曲以减少表观边界尺寸和/或利用组装的柔性显示器的侧表面。

公开(公告)号：US11830443B2

公开(公告)日：2023-11-28

申请号：US17975512

申请日：2022-10-27

Applicant: LG Display Co., Ltd.

Inventor： Nakyoon Kim ,  ChangHoon Jeon ,  Hongsoon Kim

IPC: G09G3/30 ,  G09G3/3291 ,  G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/3291 ,  G09G3/2096 ,  G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2320/0257

Abstract: The present disclosure relates to display device, display panel, and display driving method. Disclosed herein is a display device including a display panel in which a light emitting element, a driving transistor configured to provide a driving current to a light emitting element using a driving voltage, and a plurality of switching transistors configured to control driving of the driving transistor are disposed; a gate driving circuit configured to supply a plurality of scan signals to the display panel through a plurality of gate lines; an emission driving circuit configured to supply a plurality of emission signals to the display panel through a plurality of emission signal lines; a data driving circuit configured to supply a data voltage to the display panel; and a timing controller configured to, in a low speed mode in which the display panel is operated at a low driving frequency, control the driving current to be applied to the driving transistor during a first emission control period after a bias voltage is applied to the driving transistor, and control the driving current to be applied to the light emitting element through the driving transistor during a second emission control period.

公开(公告)号：US09760125B2

公开(公告)日：2017-09-12

申请号：US14251244

申请日：2014-04-11

Applicant: LG DISPLAY CO., LTD.

Inventor： JaeBok Kim ,  ChangHoon Jeon

IPC: G06F1/16 ,  H04M1/02

CPC classification number: G06F1/1652 ,  H01L27/3276 ,  H01L51/0097 ,  H01L51/5253 ,  H01L2251/5338 ,  H04M1/0268

Abstract: The present invention relates to a flexible display panel for suppressing a problem in which a crack such as disconnection on an internal circuit layer or the like is generated or a required warpage level is not attainable in a warped area while bending an edge portion thereof. According to an embodiment of the present invention, the layer structure of a signal line portion for electrically connecting elements provided within a display area and a non-active area may be simplified, and a protective member may be formed thereon, thereby obtaining the effect of minimizing the damage of the layer structure due to bending.