公开(公告)号：US20170337875A1

公开(公告)日：2017-11-23

申请号：US15598887

申请日：2017-05-18

Applicant: LG DISPLAY CO., LTD.

Inventor： ChangHoon JEON ,  Sunghoon RHA

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

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G3/3291 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2300/0871 ,  G09G2310/0262 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0257 ,  G09G2320/043 ,  H01L27/1214 ,  H01L27/1225 ,  H01L27/1255 ,  H01L27/3262 ,  H01L27/3265 ,  H01L29/78648

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：US20180151132A1

公开(公告)日：2018-05-31

申请号：US15826000

申请日：2017-11-29

Applicant: LG DISPLAY CO., LTD.

Inventor： KyoungWon LEE ,  ChangHoon JEON

IPC: G09G3/34 ,  G09G3/30

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：US20240257741A1

公开(公告)日：2024-08-01

申请号：US18425453

申请日：2024-01-29

Applicant: LG Display Co., Ltd.

Inventor： MinKyung LEE ,  ChangHoon JEON ,  Li-Jin KIM

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2340/0435

Abstract: A light emitting display apparatus includes a pixel including a pixel driving circuit and a light emitting device, and a gate driver supplying gate signals to the pixel driving circuit. The pixel driving circuit includes a switching transistor, a driving transistor, and a first light emitting transistor. The first light emitting transistor is connected between an anode of the light emitting device and a first node, the driving transistor controls the size of the current supplied to the light emitting device through the first node and the first light emitting transistor, and the switching transistor controls the supply of a data voltage to the light emitting device through the first node. During the use of the light emitting display apparatus, one second is divided into a refresh period and an anode reset period, and the switching transistor is turned on only during the refresh period.

公开(公告)号：US20240257740A1

公开(公告)日：2024-08-01

申请号：US18423911

申请日：2024-01-26

Applicant: LG Display Co., Ltd.

Inventor： MinKyung LEE ,  ChangHoon JEON ,  Li-Jin KIM

IPC: G09G3/3233 ,  G09G3/3266

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2340/0435

Abstract: A light emitting display apparatus includes a pixel having a pixel driving circuit and a light emitting device, and a gate driver supplying gate signals to the pixel driving circuit. The pixel driving circuit includes a switching transistor and a first light emitting transistor. The first light emitting transistor is connected between an anode of the light emitting device and a first node, and the switching transistor is connected between a data line in the light emitting display panel and the first node. During use, the gate driver turns on the first light emitting transistor M times per second (M is a natural number of 3 or more) and turns on the switching transistor S times smaller than M times and more than one time (S is a natural number of 2 or more) per second. One second is divided into a refresh period and an anode reset period.

公开(公告)号：US20140306941A1

公开(公告)日：2014-10-16

申请号：US14251244

申请日：2014-04-11

Applicant: LG DISPLAY CO., LTD.

Inventor： JaeBok KIM ,  ChangHoon JEON

IPC: G06F1/16

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.

Abstract translation: 本发明涉及一种柔性显示面板，用于抑制在弯曲其边缘部分时在翘曲区域中产生诸如内部电路层等之间的断开的裂纹或不能获得所需翘曲水平的问题。 根据本发明的实施例，可以简化用于电连接设置在显示区域和非有效区域内的元件的信号线部分的层结构，并且可以在其上形成保护构件，从而获得 最小化由于弯曲引起的层结构的损坏。