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：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 。

公开(公告)号：US10921751B2

公开(公告)日：2021-02-16

申请号：US16058834

申请日：2018-08-08

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

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 behaviour of the recording stack during the irradiating step.

公开(公告)号：US10136122B2

公开(公告)日：2018-11-20

申请号：US15638915

申请日：2017-06-30

Applicant: LG Display Co., Ltd.

Inventor： Hoon Kang ,  Heejin Im ,  Ara Yoon

IPC: H04N13/315 ,  H04N13/305 ,  G02B27/22 ,  H04N13/31 ,  H04N13/128 ,  H04N13/111 ,  H04N13/00

Abstract: The present disclosure relates to an autostereoscopic three-dimensional (or, 3D) display using a switchable barrier. The present disclosure provides an autostereoscopic 3D display comprising: a display panel including a plurality of pixels arrayed in a matrix manner; and a switchable barrier disposed on a front surface of the display panel, wherein the switchable barrier includes: a lower substrate having first lower electrodes, a first passivation layer covering the first lower electrodes, second lower electrodes on the first passivation layer, a second passivation layer covering the second lower electrodes, and third lower electrodes on the second passivation layer; an upper substrate having an upper electrode facing with the first lower electrodes, the second lower electrodes and the third lower electrodes; and a liquid crystal layer disposed between the lower substrate and the upper substrate.

公开(公告)号：US09013773B2

公开(公告)日：2015-04-21

申请号：US13716855

申请日：2012-12-17

Applicant: LG Display Co., Ltd.

Inventor： Hyungseok Bang ,  Heejin Im ,  Guensik Lee

IPC: G03H1/26 ,  G03B5/04 ,  G03H1/22

CPC classification number: G03H1/26 ,  G03H1/2202 ,  G03H1/2286 ,  G03H1/2294 ,  G03H2001/2242 ,  G03H2210/30 ,  G03H2222/35 ,  G03H2223/23

Abstract: A back light unit providing a direction controllable collimated light beam and a three-dimensional display using the same is described. A back light unit comprises: a light source for generating light; and a light direction controller for converting the light from the light source into a direction controlled collimated light beam having a refraction angle, the direction controlled collimated light beam emitted to a predetermined area to generate a three-dimensional holographic image. The back light unit can provide direction controllable collimation light having uniform brightness distribution over a large diagonal area of the spatial light modulator with thin and simple structure.

Abstract translation: 描述了提供方向可控的准直光束的背光单元和使用其的三维显示器。 背光单元包括：用于产生光的光源; 以及用于将来自光源的光转换成具有折射角的方向控制的准直光束的光方向控制器，所述方向控制的准直光束发射到预定区域以产生三维全息图像。 背光单元可以提供具有薄且简单结构的空间光调制器的大对角区域上具有均匀亮度分布的方向可控准直光。