公开(公告)号：US20240420428A1

公开(公告)日：2024-12-19

申请号：US18643505

申请日：2024-04-23

Applicant: Sharp Display Technology Corporation

Inventor： Naru USUKURA

IPC: G06T19/00 ,  G02B5/08 ,  G02B5/30

Abstract: An augmented reality display device causes a user to perceive first and second images at different distances in a state where the user can perceive a real environment. The augmented reality display device includes: a display panel which emits polarized lights for first and second images; a surface-divided polarization conversion component; and an optical element and a concave semi-transparent mirror. The surface-divided polarization conversion component in a plan view includes: a first transmissive part; and a second transmissive part which introduces a phase difference different by λ/2 from a phase difference introduced by the first transmissive part. The optical element makes a first image generated from the first polarized light transmitted through the first transmissive part different in virtual image distance from a second image generated from the second polarized light transmitted through the second transmissive part.

公开(公告)号：US20240061284A1

公开(公告)日：2024-02-22

申请号：US18228018

申请日：2023-07-31

Applicant: Sharp Display Technology Corporation

Inventor： Chiaki MINARI ,  Naru USUKURA ,  Ryuzo YUKI

IPC: G02F1/133 ,  G02F1/1334 ,  G02F1/137

CPC classification number: G02F1/13312 ,  G02F1/13345 ,  G02F1/137 ,  G02F2202/04 ,  G02F2203/02

Abstract: A display device includes a display panel and a control unit. The display panel includes a first substrate, a light modulation layer configured to switch between transmissive display and non-transmissive display, and a second substrate in this order, and further includes an optical sensor configured to detect a luminance of light incident from a first space located on one main surface side of the display panel and from a second space located on the other main surface side of the display panel. The control unit calculates, based on the luminance, a relationship between brightness of the first space and brightness of the second space as a numerical value and switches display of the light modulation layer based on the numerical value.

公开(公告)号：US20230341687A1

公开(公告)日：2023-10-26

申请号：US18136272

申请日：2023-04-18

Applicant: Sharp Display Technology Corporation

Inventor： Naru USUKURA

IPC: G02B27/01 ,  G02F1/1335 ,  H10K59/80 ,  G02B5/30 ,  G02F1/13363

CPC classification number: G02B27/0172 ,  G02B5/3016 ,  G02B5/3083 ,  G02F1/133526 ,  G02F1/133541 ,  G02F1/133638 ,  H10K59/879 ,  H10K59/8793

Abstract: Provided is a display device having a thin profile and a high light use efficiency and a head-mounted display including the display device. The display device includes a display panel; a circular polarizer configured to convert display light from the display panel into circularly polarized light and to transmit the circularly polarized light; a patterning mirror including light transmitters and a light reflector, the light transmitters being configured to transmit the circularly polarized light and the light reflector being provided on a surface opposite to a surface facing the circular polarizer; a lens configured to transmit the circularly polarized light transmitted through the patterning mirror; and a circularly polarized light selective reflector configured to selectively reflect the circularly polarized light transmitted through the lens.

公开(公告)号：US20240422303A1

公开(公告)日：2024-12-19

申请号：US18641990

申请日：2024-04-22

Applicant: Sharp Display Technology Corporation

Inventor： Naru USUKURA

IPC: H04N13/337 ,  G02B3/00 ,  G02B3/14 ,  G02B5/30 ,  H04N13/156

Abstract: Provided are a surface-divided polarization conversion component capable of generating from one display panel two images at different virtual image distances, and a display device using the surface-divided polarization conversion component. The surface-divided polarization conversion component includes, in a plan view: a first transmissive part which transmits polarized light for a first image; and a second transmissive part which transmits polarized light for a second image, the second transmissive part introducing a phase difference different by λ/2 from a phase difference introduced by the first transmissive part.

公开(公告)号：US20240272528A1

公开(公告)日：2024-08-15

申请号：US18404936

申请日：2024-01-05

Applicant: Sharp Display Technology Corporation

Inventor： Naru USUKURA

IPC: G03B21/00 ,  G02F1/1347

CPC classification number: G03B21/006 ,  G02F1/13471

Abstract: Provided is a projector that has a high light use efficiency and can switch irradiation regions. The projector includes: a light source; a polarization beam splitter configured to split light from the light source into P-polarized light and S-polarized light; a first reflective display configured to modulate the split P-polarized light; a second reflective display configured to modulate the split S-polarized light; a projector lens on which reflected lights from the reflective displays are incident; and a deflector disposed on or near a light-emitting side of the projector lens and configured to change a traveling direction of incident polarized light depending on the polarized light.

公开(公告)号：US20230244101A1

公开(公告)日：2023-08-03

申请号：US18102904

申请日：2023-01-30

Applicant: Sharp Display Technology Corporation

Inventor： Naru USUKURA ,  Masahiro IMAI ,  Yuhichiroh MURAKAMI ,  Takahiro YAMAGUCHI ,  Shige FURUTA

IPC: G02F1/1335 ,  G02F1/1368 ,  G02F1/1362 ,  G02F1/13357

CPC classification number: G02F1/133536 ,  G02F1/133504 ,  G02F1/133524 ,  G02F1/1368 ,  G02F1/136286 ,  G02F1/133603

Abstract: A display device includes an organic EL element layer, a liquid crystal element layer disposed on top of the organic EL element layer, and a polarizing plate disposed at a side of the liquid crystal element layer that faces an observer. The liquid crystal element layer includes two transparent substrates and a liquid crystal layer disposed between the two transparent substrates. The liquid crystal element layer is configured to be able to, by applying a voltage to the liquid crystal layer, cause a substantially quarter-wavelength retardation in light passing through the liquid crystal layer.

公开(公告)号：US20220365619A1

公开(公告)日：2022-11-17

申请号：US17740055

申请日：2022-05-09

Applicant: Sharp Display Technology Corporation

Inventor： Shugo KANO ,  Tomohiro KIMURA ,  Naru USUKURA ,  Yasuhiro SUGITA ,  Takuma YAMAMOTO

IPC: G06F3/041 ,  G06F3/01

Abstract: A display device includes a first display configured to display a plurality of objects, and a touch panel overlapped with the first display in a plan view. The touch panel includes a pressing force sensor configured to detect a pressing force in each of the plurality of objects. The display device controls display of a second display in accordance with a function of an object with a pressing force detected, among the plurality of objects.

公开(公告)号：US20240210699A1

公开(公告)日：2024-06-27

申请号：US18519376

申请日：2023-11-27

Applicant: Sharp Display Technology Corporation

Inventor： Naru USUKURA

IPC: G02B27/01 ,  G02B5/30 ,  G02B27/09 ,  G02B27/14 ,  G02B27/28

CPC classification number: G02B27/0172 ,  G02B5/3016 ,  G02B27/0179 ,  G02B27/0955 ,  G02B27/141 ,  G02B27/283 ,  G02B2027/0187

Abstract: Provided is a display device includes a display panel, a linearly polarizing plate, and a first polarized light-selective reflector disposed sequentially toward a viewer; a first phase difference plate and a first lens disposed closer to the viewer relative to the first polarized light-selective reflector and facing each other; a semi-transparent mirror disposed closer to the viewer relative to the first phase difference plate and the first lens; a second lens and a second phase difference plate disposed closer to the viewer relative to the semi-transparent mirror and facing each other; and a second polarized light-selective reflector disposed closer to the viewer relative to the second lens and the second phase difference plate. The first lens and the second lens have shapes asymmetric about the semi-transparent mirror as a plane of symmetry in a cross-sectional view in a direction from the display panel toward the second polarized light-selective reflector.

公开(公告)号：US20240085700A1

公开(公告)日：2024-03-14

申请号：US18236328

申请日：2023-08-21

Applicant: Sharp Display Technology Corporation

Inventor： MATTIA SIGNORETTO ,  DAVID JAMES MONTGOMERY ,  PETER JOHN ROBERTS ,  Naru USUKURA ,  Manabu DAIO

IPC: G02B27/01 ,  G02F1/1335

CPC classification number: G02B27/0172 ,  G02F1/133526 ,  G02F1/133541 ,  G02F1/133557 ,  G02F1/133638

Abstract: The display device of the present invention includes, in the following order toward a viewer: a display panel; a semi-transparent mirror; a Pancharatnam-Berry lens configured to cause one-handed circularly polarized light incident thereon that is left-handed circularly polarized light or right-handed circularly polarized light to converge while causing opposite-handed circularly polarized light incident thereon to diverge; and a circularly polarized light-selective reflector.

公开(公告)号：US20230314877A1

公开(公告)日：2023-10-05

申请号：US18126820

申请日：2023-03-27

Applicant: Sharp Display Technology Corporation

Inventor： Naru USUKURA ,  Akiko ITOH ,  Koji MURATA ,  Keisuke YOSHIDA

IPC: G02F1/13357 ,  G06F1/16

CPC classification number: G02F1/13362 ,  G06F1/1616

Abstract: An electronic device includes a first display panel including a first display surface, and a second display panel including a second display surface and configured to be disposed such that light emitted from the first display surface is incident on the second display surface. The first display panel is configured such that light emitted from the first display surface and incident on the second display surface includes a large amount of P-polarization components. The second display panel is a reflection-type display panel, and includes a polarizer disposed on the second display surface and configured to absorb S-polarization components of incident light.