公开(公告)号：US10353135B2

公开(公告)日：2019-07-16

申请号：US15392646

申请日：2016-12-28

Applicant: LG Display Co., Ltd.

Inventor： Youngki Song ,  MyungJoon Park

IPC: F21V8/00 ,  G02F1/133 ,  G02F1/1333 ,  G02F1/1335

Abstract: Disclosed is a backlight unit for minimizing consumption power in realizing partial luminance. The backlight unit includes a light guide member including a first light incident part and a second light incident part, a first light source unit disposed in the first light incident part, and a second light source unit disposed in the second light incident part. The first light source unit and the second light source unit have different luminous intensities.

公开(公告)号：US11500199B2

公开(公告)日：2022-11-15

申请号：US16710948

申请日：2019-12-11

Applicant: LG Display Co., Ltd.

Inventor： Youngki Song ,  Chiyong Kim

IPC: H01L25/16 ,  H01L25/18 ,  H01L27/14 ,  H01L27/32 ,  H01L51/00 ,  H01L51/52 ,  G02B27/00 ,  G02B5/04 ,  G02B26/08 ,  G09F9/30 ,  G09F9/33 ,  G02F1/133 ,  G06F3/041 ,  G06F3/044 ,  G02F1/1335 ,  G02F1/1333 ,  H01L27/146

Abstract: A light path control device and an electronic device including the light path control device, which reduce color shift at a side viewing angle, are provided. The light path control device can include a light path control layer including first, second and third light control layers, and a transparent base member coupled to the first light control layer or the third light control layer. The third light control layer can have a refractive index which is lower than a refractive index of the second light control layer. The light path control layer can include a first refractive surface disposed between the first light control layer and the third light control layer, and a second refractive surface and a third refractive surface disposed between the second light control layer and the third light control layer.

公开(公告)号：US11966143B2

公开(公告)日：2024-04-23

申请号：US17236788

申请日：2021-04-21

Applicant: LG Display Co., Ltd.

Inventor： Youngki Song ,  SunMan Kim

IPC: G02F1/167 ,  G02F1/1676 ,  G02F1/1679

CPC classification number: G02F1/167 ,  G02F1/1676 ,  G02F1/1679 ,  G02F2203/01

Abstract: The present disclosure relates to a light shutter panel and a transparent display apparatus having the same. The light shutter panel according to the present disclosure comprises: a lower electrode plate; an upper electrode plate facing with the lower electrode plate; a shutter layer disposed between the lower electrode plate and the upper electrode plate, and including a maximum light transmitting portion, a minimum light blocking portion, ink storage portions connecting the maximum light transmitting portion and the minimum light blocking portion, and an electric field guide disposed between the ink storage portions; a plurality of spacers maintaining a gap between the lower electrode plate and the upper electrode plate; and black ink filled into the ink storage portion of the shutter layer.

公开(公告)号：US11714217B2

公开(公告)日：2023-08-01

申请号：US17111160

申请日：2020-12-03

Applicant: LG Display Co., Ltd.

Inventor： Youngki Song ,  SunMan Kim

IPC: G02B5/00 ,  G02B5/04 ,  H10K50/858 ,  H10K50/86

CPC classification number: G02B5/003 ,  G02B5/045 ,  H10K50/858 ,  H10K50/865

Abstract: The present disclosure relates to a light control film having nano (or nano-scale) light absorbing layer and a display using the same. A light control film according to the present disclosure comprises: a lower layer having a first axis and a second axis; an upper layer facing with the lower layer; a middle layer having a thickness disposed between the lower layer and the upper layer; a plurality of nano light absorbing layers arrayed with a predetermined interval along the first axis in the middle layer, each of the nano light absorbing layer having a width along the first axis, a length along the second axis and a height corresponding to the thickness of the middle layer; and a prism pattern disposed between each pair of the nano light absorbing layers.

公开(公告)号：US11921396B2

公开(公告)日：2024-03-05

申请号：US17961906

申请日：2022-10-07

Applicant: LG Display Co., Ltd.

Inventor： Youngki Song

IPC: G02F1/1685 ,  G02F1/13 ,  G02F1/1335 ,  G02F1/167 ,  G02F1/1675 ,  G02F1/1676 ,  G02F1/1677 ,  H10K59/50

CPC classification number: G02F1/1685 ,  G02F1/1323 ,  G02F1/133553 ,  G02F1/167 ,  G02F1/1677 ,  H10K59/50 ,  G02F1/133504 ,  G02F1/1676 ,  G02F2001/1678 ,  G02F2201/50

Abstract: A viewing angle adjustment device and a display device including the same are discussed. The viewing angle adjustment device can include a first protective layer, a second protective layer disposed on the first protective layer, a light conversion layer disposed between the first protective layer and the second protective layer and including dispersion liquid having dispersed floating particles, and an auxiliary light conversion layer disposed on the second protective layer. The auxiliary light conversion layer can include first patterns where a light absorbing layer and a transparent layer are disposed in a center area, and second patterns where the light absorption layer, the transparent layer and a reflective layer are disposed in an edge area.

公开(公告)号：US10928660B2

公开(公告)日：2021-02-23

申请号：US15988106

申请日：2018-05-24

Applicant: LG Display Co., Ltd.

Inventor： JinRyun Kim ,  Youngki Song ,  MinSoo Park ,  Eunhee Choi

IPC: G02F1/13 ,  G02F1/35 ,  G02B26/02 ,  G02B5/23 ,  G02F1/13357

Abstract: A viewing angle controlling film, a backlight unit using the same, and a display device using the same are disclosed. The viewing angle controlling film comprises a first area where light transmittance is not converted; and a second area where light transmittance is converted, wherein the second area includes a light-transmittance conversion portion configured to react with light of a predetermined wavelength range to convert the light transmittance and not to react with light of a wavelength range other than the predetermined wavelength range.

公开(公告)号：US20180156964A1

公开(公告)日：2018-06-07

申请号：US15833840

申请日：2017-12-06

Applicant: LG DISPLAY CO., LTD

Inventor： Youngki Song ,  Hyunkyo Lim ,  Sunbok Song

IPC: F21V8/00 ,  G02F1/1368 ,  G02F1/1362 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/1333

Abstract: A light guide plate and a liquid crystal display are disclosed. The light guide plate having a light incident plane on which light is incident from a light source and a reverse light incident plane facing the light incident plane, includes at least one of corners of the reverse light incident plane having a curvature, a chamfered shape, or a plurality of first step patterns including a first tread and a first riser.

公开(公告)号：US11953799B2

公开(公告)日：2024-04-09

申请号：US17236873

申请日：2021-04-21

Applicant: LG Display Co., Ltd.

Inventor： Jaehyun Park ,  Youngki Song

IPC: G02F1/167 ,  G02F1/1676 ,  G02F1/1679

CPC classification number: G02F1/167 ,  G02F1/1676 ,  G02F1/1679 ,  G02F2203/01

Abstract: The present disclosure relates to a light shutter panel and a transparent display apparatus having the same. The light shutter panel according to the present disclosure comprises: a lower electrode plate; a upper electrode plate facing with the lower electrode plate; a shutter layer disposed between the lower electrode plate and the upper electrode plate, the shutter layer including a first ink storage portion disposed at a lower part, a second ink storage portion disposed at a upper part and overlapped with the first ink storage portion, and a first electric field guide disposed between the first ink storage portion and the second ink storage portion; a first black ink filled into the first ink storage portion; and a second black ink filled into the second ink storage portion.

公开(公告)号：US11914262B2

公开(公告)日：2024-02-27

申请号：US17236758

申请日：2021-04-21

Applicant: LG Display Co., Ltd.

Inventor： Youngki Song ,  JaeHyun Park ,  Sun Man Kim

IPC: G02F1/167 ,  G02F1/1679 ,  G02F1/1676

CPC classification number: G02F1/167 ,  G02F1/1676 ,  G02F1/1679 ,  G02F2203/01

Abstract: The present disclosure relates to a light shutter panel and a transparent display apparatus having the same. The light shutter panel comprises: a first light shutter panel and a second light shutter panel. Each of the first and second light shutter panels includes: a lower electrode plate, an upper electrode plate, a shutter layer, transparent spacers and a black ink. The lower electrode plate and the upper electrode plate are attached as facing each other. The shutter layer is disposed between the lower electrode plate and the upper electrode plate. The shutter layer includes a maximum light transmitting portion, a minimum light blocking portion, an ink storage portion and an electric field guide. The electric field guide is disposed between the ink storage portions. The transparent spacers maintain the gap between the lower electrode plate and the upper electrode plate. The black ink is filled into the ink storage portion.

公开(公告)号：US10663640B2

公开(公告)日：2020-05-26

申请号：US15833840

申请日：2017-12-06

Applicant: LG DISPLAY CO., LTD

Inventor： Youngki Song ,  Hyunkyo Lim ,  Sunbok Song

IPC: G02B6/00 ,  F21V8/00 ,  G02F1/1368 ,  G02F1/1362 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/1333 ,  G02F1/1337 ,  G09G3/36

Abstract: A light guide plate and a liquid crystal display are disclosed. The light guide plate having a light incident plane on which light is incident from a light source and a reverse light incident plane facing the light incident plane, includes at least one of corners of the reverse light incident plane having a curvature, a chamfered shape, or a plurality of first step patterns including a first tread and a first riser.