公开(公告)号：US10657352B2

公开(公告)日：2020-05-19

申请号：US15834959

申请日：2017-12-07

Applicant: LG Display Co., Ltd.

Inventor： Guensik Lee ,  Seungman Ryu ,  ARa Yoon ,  Junghoon Lee

IPC: G06K9/00 ,  H01L27/32 ,  G06F3/042 ,  G06F3/041 ,  G02F1/1333 ,  G06F1/16 ,  G02B5/32 ,  H04M1/02 ,  F21V8/00

Abstract: The present disclosure relates to a flat panel display embedding an optical imaging sensor such as a fingerprint image sensor. The present disclosure provides 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 includes: a first cover plate and a second cover plate having a size corresponding to the length and the width and joining each other by a first low refractive layer between the first cover plate and the second cover plate; a light radiating film corresponding to the display area under the second cover plate; a light incident film disposed outside of the display area at one lateral side of the light radiating film, under the second cover plate; a second low refractive layer disposed under the light radiating film and the light incident film, and attached on the top surface of the display panel; and a light source disposed at the lateral side of the display panel as facing with the light incident film.

公开(公告)号：US10073416B2

公开(公告)日：2018-09-11

申请号：US14695610

申请日：2015-04-24

Applicant: LG Display Co., Ltd. ,  Bayer MaterialScience AG

Inventor： Hyungseok Bang ,  Heejin Im ,  Guensik Lee ,  Friedrich-Karl Bruder ,  Thomas Peter Facke ,  Marc-Stephan Weiser ,  Rainer Hagen ,  Thomas Rolle ,  Horst Berneth ,  Dennis Honel ,  Günther Walze

IPC: G03H1/04 ,  G03H1/02 ,  G02B5/32

CPC classification number: G03H1/0402 ,  G02B5/32 ,  G03H1/0252 ,  G03H1/0272 ,  G03H1/04 ,  G03H1/0486 ,  G03H2001/026 ,  G03H2001/0264 ,  G03H2001/043 ,  G03H2001/0439 ,  G03H2240/43 ,  G03H2240/52 ,  G03H2240/55 ,  G03H2270/11

Abstract: The invention relates to a method for producing a holographic optical element by providing a recording stack comprising at least one recording element laminated on at least one supporting element, irradiating at least a part of the recording stack with at least one recording beam in an irradiating step, wherein during the irradiating step, the recording stack bends, providing a bending deviation threshold for the recording stack, and adjusting at least one first process parameter such that an expected maximum bending deviation of the recording stack does not exceed the bending deviation threshold, wherein the at least one first process parameter influences the bending behavior of the recording stack during the irradiating step.

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：US20180149792A1

公开(公告)日：2018-05-31

申请号：US15819992

申请日：2017-11-21

Applicant: LG DISPLAY CO., LTD.

Inventor： Guensik Lee ,  Kyoseop Choo

IPC: F21V8/00 ,  G06K9/00 ,  G02B5/32

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 to the display area, and wherein the sensing light is collimated and directionized to a predetermined direction.

公开(公告)号：US09541900B2

公开(公告)日：2017-01-10

申请号：US14140914

申请日：2013-12-26

Applicant: LG Display Co., Ltd. ,  Bayer MaterialScience AG

Inventor： Hyungseok Bang ,  Heejin Im ,  Guensik Lee ,  Friedrich-Karl Bruder ,  Thomas Peter Fäcke ,  Marc-Stephan Weiser ,  Rainer Hagen ,  Thomas Rölle ,  Horst Berneth ,  Dennis Hönel ,  Günther Walze

IPC: G03F1/20 ,  G03H1/20 ,  G02B27/09 ,  G03H1/02 ,  G03H1/04 ,  G02B27/01 ,  G02B5/02 ,  G02B5/32

CPC classification number: G03H1/20 ,  G02B5/0252 ,  G02B5/0278 ,  G02B5/32 ,  G02B27/0103 ,  G02B27/0944 ,  G03H1/02 ,  G03H1/0402 ,  G03H2001/0264 ,  G03H2001/0439 ,  G03H2222/18

Abstract: The present disclosure relates to a method for producing a beam shaping holographic optical element, which is configured to generate diffracted beams configured to reconstruct an image of a diffusor irrespectively of the point of impact of a pencil of light on the beam shaping holographic optical element, comprising providing a recording element, providing a master element comprising a particular pattern, forming a recording stack comprising the recording element and the master element such that the master element is arranged to the recording element in a closed-copy distance, irradiating at least a part of the recording stack with a reconstruction beam, irradiating at least a part of the recording stack with a reference beam, wherein at least one of the reconstruction beam or reference beam penetrates the master element to record the pattern of the master element onto the recording element.

Abstract translation: 本公开涉及一种用于制造光束成形全息光学元件的方法，其被配置为产生衍射光束，所述衍射光束被配置为重建漫射器的图像，而不管光束的影响点在光束成形全息光学元件上， 包括提供记录元件，提供包括特定图案的主元件，形成包括所述记录元件和所述主元件的记录堆叠，使得所述主元件以闭合复印距离布置到所述记录元件，照射至少一部分 具有重建光束的记录堆叠，用参考光束照射至少一部分记录堆叠，其中重建光束或参考光束中的至少一个穿透主元件以将主元件的图案记录到记录元件上 。