公开(公告)号：US20190198801A1

公开(公告)日：2019-06-27

申请号：US16049300

申请日：2018-07-30

Applicant: LG DISPLAY CO., LTD.

Inventor： IkHyun KUON ,  JeongKweon PARK ,  MoonGoo KIM ,  Chan PARK ,  SangGul LEE ,  YongSoo KIM ,  SangEun HAN

IPC: H01L51/52 ,  H01L51/00 ,  H01L27/32 ,  G06F3/041

CPC classification number: H01L51/5246 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04102 ,  H01L27/323 ,  H01L27/3248 ,  H01L27/3262 ,  H01L27/3276 ,  H01L51/0097 ,  H01L51/5253 ,  H01L51/5281 ,  H01L2251/5338

Abstract: A flexible electroluminescent display device can include a flexible substrate including an active area and a bending area extending from one side of the active area to be bent; a thin film transistor and a light emitting diode on the active area; a touch screen panel on the active area; a touch circuit board connected to the touch screen panel and bent at an outer periphery of the bending area of the flexible substrate; a polarizer disposed on the touch screen panel and covering a portion of the touch circuit board; and a step compensating layer disposed between the touch screen panel and the polarizer, the step compensating layer compensates a step between the touch screen panel and the touch circuit board.

公开(公告)号：US20180097199A1

公开(公告)日：2018-04-05

申请号：US15716039

申请日：2017-09-26

Applicant: LG DISPLAY CO., LTD.

Inventor： Heungju JO ,  JeongKweon PARK ,  Chan PARK ,  SangGul LEE ,  Yongsoo KIM ,  Jangcheol KIM ,  Do-Young KIM ,  Euijun LEE ,  SangEun HAN

IPC: H01L51/52 ,  H01L51/00 ,  H01L27/32 ,  H01L51/56

CPC classification number: H01L51/5253 ,  H01L27/323 ,  H01L27/3276 ,  H01L51/0097 ,  H01L51/5281 ,  H01L51/56 ,  H01L2227/323 ,  H01L2251/5338 ,  Y02E10/549

Abstract: A flexible display device can include a first portion in which an organic light emitting element is disposed on a first surface; a base layer made of a flexible substrate including a second portion, outside of the first portion, having a bend section bent toward a second surface opposite to the first surface; and a protective coating layer covering at least a part of the second portion, wherein a polarization layer is on the organic light emitting element of the first portion without a barrier film, and wherein the protective coating layer is coated such that a portion adjacent to the polarization layer is thicker than the other portion.

公开(公告)号：US20170351357A1

公开(公告)日：2017-12-07

申请号：US15584614

申请日：2017-05-02

Applicant: LG DISPLAY CO., LTD.

Inventor： Heungju JO ,  JeongKweon PARK ,  Chan PARK ,  SangGul LEE ,  SangEun HAN

IPC: G06F3/044 ,  G06F1/16 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F1/1637 ,  G06F1/1643 ,  G06F3/041 ,  G06F3/0412 ,  G06F2203/04105

Abstract: Discussed is a display device in which a first pressure electrode configuring a pressure touch panel is adhered to a first polarizing film attached on a lower end of a panel. The display device includes a display panel displaying an image, a capacitive touch panel provided in the display panel and including a plurality of touch electrodes, a first polarizing film adhered to a first side surface of the display panel, a first pressure electrode part adhered to a first side surface of the first polarizing film and including a first pressure electrode, and a second pressure electrode part spaced apart from the first pressure electrode part and including a second pressure electrode facing the first pressure electrode.

公开(公告)号：US20240221651A1

公开(公告)日：2024-07-04

申请号：US18395832

申请日：2023-12-26

Applicant: LG Display Co., Ltd.

Inventor： Chan PARK ,  Nakyoon KIM ,  Sojeong KIM

IPC: G09G3/3233 ,  G09G3/3266

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2310/061 ,  G09G2320/0233 ,  G09G2320/0247

Abstract: Disclosed are a display device in which a scan timing for applying a stress voltage to a pixel is adjusted based on an operating frequency to prevent a flicker phenomenon even when the operating frequency varies, and a method for operating the same. The display device includes a display panel including a plurality of pixel circuits; and a gate driver circuit configured to provide an emission signal, a first scan signal, a second scan signal, a third scan signal, and a fourth scan signal to each of the plurality of pixel circuits, wherein when the display device operates in a variable refresh rate (VRR) mode, the display device is configured to adjust a time at and/or a time duration for which the third scan signal is enabled based on an operating frequency in each of a refresh frame and an anode reset frame, wherein the third scan signal is defined as a signal for applying an on-bias stress voltage to a pixel circuit.

公开(公告)号：US20230215384A1

公开(公告)日：2023-07-06

申请号：US17963100

申请日：2022-10-10

Applicant: LG Display Co., Ltd.

Inventor： Jongtaek KIM ,  Chan PARK

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

CPC classification number: G09G3/3291 ,  G09G3/2007 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2310/027 ,  G09G2310/0286 ,  G09G2320/0209 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2330/028 ,  G09G2360/16

Abstract: Disclosed is a display device comprising: a display panel on which a plurality of pixels of different colors are arrayed; a power supply configured to supply a high-potential driving voltage to the display panel; and a data driver configured to calculate an average picture level of input image data, and generate a data voltage based on a compensation value for compensating for a voltage drop of the high-potential driving voltage based on the calculated APL, wherein the compensation value is independently set for each of the colors.

公开(公告)号：US20230148069A1

公开(公告)日：2023-05-11

申请号：US18050987

申请日：2022-10-29

Applicant: LG DISPLAY CO, LTD.

Inventor： Juyeob LEE ,  Chan PARK ,  Yongsoo KIM ,  Moowook BANG ,  Kilsu PARK ,  Eungchul PARK

IPC: H01L51/52

CPC classification number: H01L51/524 ,  H01L27/3244

Abstract: A display device includes a pixel substrate having pixels; and a cover window disposed on an upper surface of the pixel substrate and including a folding pattern, and the folding pattern may make an angle between 5 degrees and 40 degrees with a folding line of the display device. Another aspect relates to a display device including a pixel substrate having pixels; and a cover window disposed on an upper surface of the pixel substrate and including a folding pattern, and the folding pattern includes a first folding pattern and a second folding pattern and the first folding pattern and the second folding pattern each may make a different acute angle in the same direction with a folding line of the display device.

公开(公告)号：US20230144298A1

公开(公告)日：2023-05-11

申请号：US17974283

申请日：2022-10-26

Applicant: LG DISPLAY CO., LTD.

Inventor： Hogeun KOO ,  Hong Soon KIM ,  Chan PARK

IPC: G09G3/3291

CPC classification number: G09G3/3291 ,  G09G2310/0297 ,  G09G2310/061 ,  G09G2320/0233

Abstract: Embodiments of the disclosure relate to a display device and a data driving circuit. The display device comprises a display panel including a plurality of subpixels and a plurality of data lines electrically connected with the plurality of subpixels and a data driving circuit outputting a data voltage to the plurality of data lines, wherein the data driving circuit outputs the data voltage for image display to the plurality of data lines during an active period and outputs a step voltage to stepwise decrease a level of the data voltage to a preset target voltage level or stepwise increase the level of the data voltage from the target voltage level during a blank period different from the active period. Specifically, there may be provided a display device and a data driving circuit capable of enhancing display quality in a dark mura area and a bright mura area by outputting a step voltage to stepwise decrease the level of a data voltage to a preset target voltage level or stepwise increase the level of the data voltage from the target voltage level during a blank period.

公开(公告)号：US20220402235A1

公开(公告)日：2022-12-22

申请号：US17843783

申请日：2022-06-17

Applicant: LG Display Co., Ltd.

Inventor： Doowon SEO ,  Wooseok ROH ,  Moongoo KIM ,  Chan PARK ,  Eungchul PARK

IPC: B32B3/30 ,  H01L51/52 ,  G02F1/1333 ,  B32B38/10 ,  B32B37/16 ,  B32B17/06 ,  C03C17/00

Abstract: Disclosed is a method for manufacturing ultra-thin glass. The method includes: patterning, on a mother glass substrate comprising a plurality of display cells and a dummy area surrounding the display cells, a cutting line having a shape corresponding to the display cells; forming a mother glass protective film on the mother glass substrate; forming a through-hole which corresponds to the cutting line by etching the mother glass substrate; and cutting bridges which are formed by the mother glass substrate and connect the through-holes.

公开(公告)号：US20230143178A1

公开(公告)日：2023-05-11

申请号：US17974320

申请日：2022-10-26

Applicant: LG DISPLAY CO., LTD.

Inventor： Hong Soon KIM ,  Chan PARK ,  Nakyoon KIM

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

CPC classification number: G09G3/3291 ,  G09G3/2074 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0291 ,  G09G2310/0297 ,  G09G2330/021

Abstract: Embodiments of the disclosure relate to a display device and a data driving circuit. Specifically, there may be provided a display device with enhanced power efficiency and a data driving circuit by providing a display device including a display panel divided into an always-on display area displaying information during a standby screen period and a black grayscale area except for the always-on display area, an image display voltage output circuit outputting a data voltage to input to the always-on display area during the standby screen period, and a voltage stabilization circuit outputting a constant voltage to input to at least a partial area of the black grayscale area during the standby screen period.

公开(公告)号：US20220091637A1

公开(公告)日：2022-03-24

申请号：US17476095

申请日：2021-09-15

Applicant: LG Display Co., Ltd.

Inventor： Ikhyun KUON ,  Chan PARK ,  Yongsoo KIM ,  Eungchul PARK ,  Moongoo KIM

IPC: G06F1/16

Abstract: A display device having a cover glass according to an example of the present disclosure includes a display panel, and a cover glass located on the display panel and including a folding area and a non-folding area, wherein the cover glass can include a glass layer including a glass having one or more slits disposed in the folding area in a width direction of the glass and formed in a shape passing through the glass in a height direction thereof, and a filler filled in each slit.