公开(公告)号：US20170162119A1

公开(公告)日：2017-06-08

申请号：US15367583

申请日：2016-12-02

Applicant: LG DISPLAY CO., LTD.

Inventor： EungKyu KIM ,  YongKyu PARK ,  Seokyu JANG

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3275 ,  H01L27/32

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0214 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2330/021 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/3276

Abstract: A display device includes a switching circuit; a sub-pixel having a driving transistor and an organic light emitting diode (OLED) with an anode connected to the driving transistor; a driving voltage supply line to supply a driving voltage to the OLED through the driving transistor; a base voltage supply line connected to a cathode of the OLED through the switching circuit; a ground line to supply a ground voltage to the switching circuit; a first capacitor between the driving voltage supply line and the ground line; and a second capacitor between the base voltage supply line and the ground line. The switching circuit selectively supplies one of a first level voltage and a second level voltage as the base voltage, and the second level voltage is higher than the first level voltage at the ground voltage.

公开(公告)号：US20210407437A1

公开(公告)日：2021-12-30

申请号：US17343143

申请日：2021-06-09

Applicant: LG DISPLAY CO., LTD.

Inventor： Seokyu JANG ,  SeungBaek PARK

IPC: G09G3/3291

Abstract: The present disclosure generally relates to a method of sensing characteristic value of circuit element and display device using it, which may shorten the threshold voltage sensing and compensation time of the driving transistor and the threshold voltage compensation time driving transistors by sensing the threshold voltage in a mobility sensing period of the driving transistor, calculate the threshold voltage using two or more sensing values of driving current for the driving transistor.

公开(公告)号：US20190066620A1

公开(公告)日：2019-02-28

申请号：US15846525

申请日：2017-12-19

Applicant: LG Display Co., Ltd.

Inventor： JinWoo PARK ,  Seokyu JANG ,  ChangBok LEE

IPC: G09G3/36 ,  G09G3/3266

Abstract: Disclosed is a display device which is capable of increasing a lifespan of a gate driver by maintaining a deterioration balance among a plurality of pull-down transistors, wherein the display device may include a display panel for displaying an image, a gate driver for supplying a gate signal to the display panel, and a timing controller for supplying a gate driver control signal to the gate driver, wherein the timing controller is set in such a way that it is turned-off until after a predetermined one among the plurality of pull-down transistors inside the gate driver is driven by the use of reset signal supplied from a reset integrated circuit.

公开(公告)号：US20190051239A1

公开(公告)日：2019-02-14

申请号：US15840156

申请日：2017-12-13

Applicant: LG DISPLAY CO., LTD.

Inventor： JinWoo PARK ,  Seokyu JANG ,  ChangBok LEE

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/043 ,  G09G2330/023 ,  G09G2330/026 ,  G09G2330/027

Abstract: Disclosed is an organic light-emitting display device including: a display panel; a drive IC configured to supply a driving signal to the display panel; and a controller configured to operate in one of a first driving scheme, in which, when turned on, a sensing period of sensing characteristics of the display panel is executed, after which a display period of displaying an image on the display panel is executed, and a second driving scheme, in which, when turned on, the display period of displaying the image on the display panel is executed, the controller operating in the second driving scheme when turned on within a preset time after having been turned off.

公开(公告)号：US20170193923A1

公开(公告)日：2017-07-06

申请号：US15390151

申请日：2016-12-23

Applicant: LG DISPLAY CO., LTD.

Inventor： Yong Kyu PARK ,  Seokyu JANG ,  Chang Bok LEE

IPC: G09G3/3291 ,  G09G3/3258

CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G3/3258 ,  G09G2300/043 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0202 ,  G09G2320/029 ,  G09G2320/043 ,  G09G2320/045

Abstract: Disclosed are an organic light emitting display panel, an organic light emitting display device, and a method of driving the organic light emitting display device. The organic light emitting display panel, the organic light emitting display device, and the method of driving the organic light emitting display device having a subpixel structure and a gate line connection structure in which two types of scan transistors within each subpixel can be individually turned on and off and image driving and various types of sensing driving can be performed while the aperture ratio increases through the individual on and off of the scan transistors.