公开(公告)号：US10579854B2

公开(公告)日：2020-03-03

申请号：US15822170

申请日：2017-11-26

Applicant: LG Display Co., Ltd.

Inventor： Kyoseop Choo ,  Hongchul Kim ,  Hoon Kang ,  Buyeol Lee ,  Seungman Ryu

IPC: G06F3/042 ,  G09G3/3233 ,  H01L27/32 ,  G06K9/00 ,  G06F3/041

Abstract: An electroluminescent display device integrated with a fingerprint sensor comprises: a display panel comprising a plurality of display pixels; a transparent substrate bonded to the top of the display panel; and an image sensor bonded to the bottom of the display panel, wherein each of the display pixels in at least some part of the pixel array on the display panel comprises a light transmission area, the image sensor comprises a plurality of photosensors, one or more of the photosensors are exposed within the light transmission area, and the resolution of the image sensor is higher than or equal to the resolution of the display panel.

公开(公告)号：US10565419B2

公开(公告)日：2020-02-18

申请号：US15826437

申请日：2017-11-29

Applicant: LG Display Co., Ltd.

Inventor： Seungman Ryu ,  Ara Yoon

IPC: G06K9/00 ,  H01L27/146 ,  F21V8/00 ,  G01J1/42

Abstract: The present disclosure relates to a flat panel display embedding an optical imaging sensor such as a fingerprint image sensor. The present disclosure suggests a flat panel type optical image sensor comprising: a cover plate having a sensing area; a light incident film disposed at a side under the cover plate; a light radiating film disposed under the cover plate corresponding to the sensing area; a low refractive layer under the light incident film and the light radiating film; a light source disposed under the light incident film; and a light sensor disposed under the light incident film.

公开(公告)号：US09910208B2

公开(公告)日：2018-03-06

申请号：US14727362

申请日：2015-06-01

Applicant: LG DISPLAY CO., LTD. ,  BAYER MATERIALSCIENCE AG

Inventor： Hyungseok Bang ,  Seungman Ryu ,  Friedrich-Karl Bruder ,  Thomas Peter Fäcke ,  Rainer Hagen ,  Günther Walze

IPC: G02B6/00 ,  G02F1/13 ,  F21V8/00 ,  G02B27/22 ,  G02F1/1335 ,  G02B5/32

CPC classification number: G02B6/005 ,  G02B5/32 ,  G02B6/0023 ,  G02B6/0035 ,  G02B6/0038 ,  G02B6/0051 ,  G02B6/0055 ,  G02B6/0066 ,  G02B6/0076 ,  G02B27/225 ,  G02F1/1323 ,  G02F1/1336

Abstract: The present disclosure relates to a thin film type controlled viewing window back light unit and a thin flat type Controlled Viewing window Display using the same. The present disclosure suggests a thin film type back light unit which can include: a base film having a width and a length, and including a high refractive film and a low refractive film stacked on the high refractive film; an incident pattern disposed at one side of a bottom surface of the base film; a reflective pattern disposed at an opposite side apart from the one side with the length of the bottom surface of the base film, and covering the width of the opposite side; a light radiating pattern disposed on an upper surface of the base film; a holographic film for controlling a viewing-window disposed on the light radiating pattern; and a light source being apart from the incident pattern, and providing an incident light to the incident pattern.

公开(公告)号：US09851489B2

公开(公告)日：2017-12-26

申请号：US15184349

申请日：2016-06-16

Applicant: LG Display Co., Ltd. ,  Covestro Deutschland AG

Inventor： Hyungseok Bang ,  Seungman Ryu ,  Joobong Hyun ,  Friedrich-Karl Bruder

IPC: F21V7/04 ,  F21V8/00 ,  G02F1/1335

CPC classification number: G02B6/002 ,  G02B6/0028 ,  G02B6/005 ,  G02B6/0055 ,  G02B6/0068 ,  G02B6/0073 ,  G02F1/133615

Abstract: The present disclosure relates to a viewing angle switchable back light unit in which the general mode and the privacy mode in a liquid crystal display can be selected. The present disclosure suggests a thin film type back light unit comprising: a light guide film including a light entering part disposed at one side, a light changing part disposed at other side and a light guiding part connecting the light entering part and the light changing part; a light radiating part disposed on an upper surface of the light guide film; and a light source disposed at the light entering part of the light guide film. The light entering part includes a wedge light coupler and a light deflection element. The light changing part includes a light reflecting pattern. The light radiating part includes a light radiating film providing some of the collimated lights as back lights.

公开(公告)号：US10747175B2

公开(公告)日：2020-08-18

申请号：US15964023

申请日：2018-04-26

Applicant: LG Display Co., Ltd.

Inventor： Guensik Lee ,  Kyoseop Choo ,  Seungman Ryu ,  Junghoon Lee

IPC: G03H1/22 ,  G06K9/00 ,  G02B27/09 ,  G03H1/02 ,  G06K9/76 ,  G02B5/32 ,  G06F3/042 ,  G03H1/04 ,  G06F3/041 ,  G03H1/26

Abstract: A fingerprint sensor integrated display using a holographic optical element and a recording and reconstruction method of the holographic optical element are disclosed. The fingerprint sensor integrated display includes a display panel on which an input image is displayed, a transparent substrate disposed on the display panel, and a light entering element configured to irradiate light from a light source onto the transparent substrate. A particular type of visual information is reconstructed through a holographic element at a location of the light entering element.

公开(公告)号：US10395086B2

公开(公告)日：2019-08-27

申请号：US15969600

申请日：2018-05-02

Applicant: LG DISPLAY CO., LTD.

Inventor： Guensik Lee ,  Kyoseop Choo ,  Seungman Ryu

IPC: G06K9/00 ,  G02F1/1333 ,  H01L27/00 ,  G02B5/32 ,  F21V8/00 ,  H01L27/32 ,  G06F21/32 ,  H01L27/30 ,  G02F1/1335

Abstract: The present disclosure relates to a flat panel display embedding an optical imaging sensor such as a fingerprint image sensor. The present disclosure suggests a flat panel display embedding an image sensor comprising: a display panel including a display area and a non-display area; and a directional optical unit having a length and a width corresponding to the display panel and a thickness, and attached on a top surface of the display panel, wherein the directional optical unit provides a sensing light beam to the display area, and wherein the sensing light is collimated and directionized to a predetermined direction.

公开(公告)号：US10274741B2

公开(公告)日：2019-04-30

申请号：US15582009

申请日：2017-04-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Hyungseok Bang ,  Seungman Ryu ,  Jonggeun Yoon ,  Yongku Lee

IPC: G02B27/22 ,  H04N13/344 ,  G02B3/00 ,  G02B27/00 ,  G09G3/3208 ,  H01L27/32 ,  H01L51/52 ,  G02B27/01

Abstract: The present disclosure relates to a display for a personal immersion apparatus for embodying the virtual reality or the augmented reality. The present disclosure suggests a display for a personal immersion apparatus comprising: a display panel; and an imaging lens; wherein the display panel includes: a plurality of pixel areas disposed on a substrate; an emission area defined in the each pixel area; a non-emission area surrounding the emission area in the each pixel area; and a micro deflector configured to deflect lights scattered over the non-emission area from the emission area to a normal direction with respect to a surface of the substrate, and to provide the deflected lights to the imaging lens, and wherein the imaging lens is disposed apart from the display panel with a focal length of the imaging lens.

公开(公告)号：US10082614B2

公开(公告)日：2018-09-25

申请号：US15379976

申请日：2016-12-15

Applicant: LG Display Co., Ltd. ,  COVESTRO DEUTSCHLAND AG

Inventor： Hyungseok Bang ,  Seungman Ryu ,  Joobong Hyun ,  Yongku Lee ,  Dongyeon Kim ,  Friedrich-Karl Bruder ,  Günther Walze

IPC: F21V8/00 ,  G02F1/13 ,  G02F1/1335

Abstract: The disclosure relates to a viewing angle switchable back light unit wherein a general mode and a privacy mode in a liquid crystal display can be selected. A thin film type back light unit includes a light guide film, a light radiator, a first light source, and a light collimator. The light guide film includes a light entering part at one side, a light guiding part extending from the one side to an opposite side of the one side, and a light radiating part on one plane surface. The light radiator is on the light radiating part. The first light source faces the light entering part. The light collimator is on the light entering part facing the first light source. The light collimator receives an expanding light from the first light source, converts the expanding light into collimated light, and provides the collimated light to the light entering part.

公开(公告)号：US20160139322A1

公开(公告)日：2016-05-19

申请号：US14932456

申请日：2015-11-04

Applicant: LG DISPLAY CO., LTD. ,  COVESTRO DEUTSCHLAND AG.

Inventor： Hyungseok BANG ,  Seungman Ryu

IPC: F21V8/00 ,  G02B5/32

CPC classification number: G02B6/0045 ,  B29D11/00663 ,  G02B5/003 ,  G02B5/188 ,  G02B5/265 ,  G02B5/32 ,  G02B6/003 ,  G02B6/0031 ,  G02B6/0035 ,  G02B6/0043 ,  G02B6/0046 ,  G02B6/0051 ,  G02B6/0055 ,  G02B6/0065 ,  G02B6/0068 ,  G02F1/133615 ,  G02F2201/08 ,  G02F2203/023 ,  G03H2001/2236 ,  G03H2250/33

Abstract: Provided is a thin light unit for a display device that includes, for example, a high refraction film including an inclined portion at a first side of the high refraction film and a flat portion extended from the inclined portion to a second side of the high refraction film; a second member on the inclined portion at the first side of the high refraction film and having a first width; a first member on the flat portion in a middle of the second side of the high refraction film and separated from the second member; a third member on the flat portion and having the first width; and a light source adjacent to the first member at a side of the flat portion.

Abstract translation: 提供了一种用于显示装置的薄光单元，其包括例如包括在高折射膜的第一侧的倾斜部分的高折射膜和从倾斜部分延伸到高折射的第二侧的平坦部分 电影; 在所述高折射膜的第一侧的所述倾斜部分上具有第一宽度的第二构件; 在所述高折射膜的第二侧的中间的平坦部分上的与所述第二构件分离的第一构件; 平坦部分上具有第一宽度的第三构件; 以及在平坦部分的一侧与第一构件相邻的光源。