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1. 发明授权

US11947201B2 Liquid crystal device, display device, optical modulation module, and control method of liquid crystal device 有权
公开(公告)号：US11947201B2
公开(公告)日：2024-04-02
申请号：US18173910
申请日：2023-02-24
申请人： SEIKO EPSON CORPORATION
发明人： Hiroyuki Hosaka , Akihide Haruyama
IPC分类号： G02F1/1335 , G02F1/01 , G02F1/133 , G02F1/13363 , G02F1/1347
CPC分类号： G02F1/0136 , G02F1/13306 , G02F1/133528 , G02F1/13363 , G02F1/1347
摘要： A liquid crystal device includes a liquid crystal panel including a liquid crystal layer as a first liquid crystal layer, a first polarizing element, a second polarizing element, a first phase difference adjusting element arranged between the first polarizing element and the liquid crystal panel and including a liquid crystal layer as a second liquid crystal layer, a second phase difference adjusting element arranged between the liquid crystal panel and the second polarizing element and including a liquid crystal layer as a third liquid crystal layer, and a first phase difference controlling element driving unit and a second phase difference controlling element driving unit as control units configured to control a value of a voltage applied to the first phase difference adjusting element and the second phase difference adjusting element, based on image data input to the liquid crystal panel.

2. 发明申请

US20140126035A1 ELECTRO-OPTIC DEVICE AND ELECTRONIC APPARATUS 有权
标题翻译：电光设备和电子设备
公开(公告)号：US20140126035A1
公开(公告)日：2014-05-08
申请号：US14067766
申请日：2013-10-30
申请人： Seiko Epson Corporation
发明人： Yohei Sugimoto , Atsushi Ito , Ryosuke Yamasaki , Akihide Haruyama
IPC分类号： G02F1/137
CPC分类号： G02F1/133502 , G02F2001/133562 , G02F2001/133565
摘要： An electro-optic device includes a first substrate, a second substrate, an electro-optic layer which is interposed between the second substrate and the first substrate, and a first translucent film, a second translucent film, and a third translucent film which are disposed between the second substrate and the electro-optic layer and are sequentially formed from the second substrate, in which the refractive index of the second translucent film is larger than the refractive index of the second substrate, is smaller than the refractive index of the first translucent film, and is smaller than the third translucent film. A transmittance of incident light of the electro-optic device is intensified using refractive index matching, interference dimming, and anti-scattering.
摘要翻译：电光装置包括第一基板，第二基板，介于第二基板和第一基板之间的电光层，以及第一半透明膜，第二半透明膜和第三半透明膜，在所述第二基板和所述电光层之间，并且从所述第二基板依次形成所述第二半透明膜的折射率大于所述第二基板的折射率的折射率，所述第二基板的折射率小于所述第一半透明并且比第三半透明膜小。使用折射率匹配，干涉调光和抗散射来增强电光装置的入射光的透射率。

3. 发明授权

US11994774B2 Electro-optical device, electronic apparatus, and projector 有权
公开(公告)号：US11994774B2
公开(公告)日：2024-05-28
申请号：US17827826
申请日：2022-05-30
申请人： SEIKO EPSON CORPORATION
发明人： Akihide Haruyama , Toru Aoki
IPC分类号： G02F1/1335 , G02F1/13363 , G03B21/00 , G03B33/12
CPC分类号： G02F1/133638 , G02F1/133526 , G02F1/133528 , G03B21/006 , G02F2201/38 , G02F2203/01 , G02F2413/02 , G02F2413/08 , G03B33/12
摘要： In an electro-optical device, a first polarizing element, a first phase difference element, a transmissive liquid crystal panel, a second phase difference element, and a second polarizing element are sequentially arranged. Here, when a phase difference of the first phase difference element and the second phase difference element is λ/4, an influence of orientation disorder of liquid crystal molecules can be alleviated, but a contrast ratio is reduced. Therefore, when a wavelength of incident light is λ, a phase difference R of the first phase difference element and the second phase difference element satisfies the following condition that 0

4. 发明授权

US10942388B1 Liquid crystal device and electronic apparatus 有权
公开(公告)号：US10942388B1
公开(公告)日：2021-03-09
申请号：US17090868
申请日：2020-11-05
申请人： SEIKO EPSON CORPORATION
发明人： Akihide Haruyama
IPC分类号： G02F1/1335 , G02F1/13363
摘要： A liquid crystal device includes a first substrate arranged on a light incident side and a second substrate that faces the first substrate through intermediation of a liquid crystal layer. A light shielding member is not provided in a display region of the first substrate. In a display region of the second substrate, a light shielding member in a lattice shape is provided between a substrate body and a pixel electrode. The second substrate includes a first lens member provided between the substrate body and the light shielding member, a second lens member provided between the light shielding member and the pixel electrode, and a third lens member provided between the second lens member and the pixel electrode. The liquid crystal device includes an optical compensation member on a light incident side of the third lens member.

5. 发明授权

US11506942B2 Electro-optical device and electronic apparatus 有权
公开(公告)号：US11506942B2
公开(公告)日：2022-11-22
申请号：US17483825
申请日：2021-09-24
申请人： SEIKO EPSON CORPORATION
发明人： Akihide Haruyama
IPC分类号： G02F1/1339 , G02F1/1335 , G02F1/1343
摘要： An electro-optical device includes a first substrate including a plurality of pixel electrodes, a second substrate having translucency, an electro-optical layer disposed between the first substrate and the second substrate, the electro-optical layer having an optical property that varies in accordance with an electric field generated by the plurality of pixel electrodes, and a spacer disposed between the first substrate and the second substrate, the spacer including a high refractive index portion having a refractive index greater than a refractive index of the electro-optical layer, the spacer being configured to define a distance between the first substrate and the second substrate.

6. 发明授权

US10444569B2 Liquid crystal display device and electronic apparatus 有权
公开(公告)号：US10444569B2
公开(公告)日：2019-10-15
申请号：US16034808
申请日：2018-07-13
申请人： SEIKO EPSON CORPORATION
发明人： Akihide Haruyama
IPC分类号： G02F1/1335 , G02F1/13363 , G02F1/1337 , G02F1/1362 , G02F1/1333 , G09G3/36 , G02F1/1368
摘要： Provided is a technique to suppress a decrease in the effect of optical compensation caused by diffraction at the element substrate in a liquid crystal display device. One aspect of a liquid crystal device includes a counter substrate that includes a common electrode, an element substrate that includes a pixel electrode, a lens, and a light-shielding member, the light-shielding member defining an opening area of a pixel, a liquid crystal layer interposed between the counter substrate and the element substrate, and an optical compensation member arranged on a counter substrate side with respect to the liquid crystal layer. Incident light is incident from the counter substrate side.

7. 发明公开

US20230273466A1 LIQUID CRYSTAL DEVICE, DISPLAY DEVICE, OPTICAL MODULATION MODULE, AND CONTROL METHOD OF LIQUID CRYSTAL DEVICE 审中-公开
公开(公告)号：US20230273466A1
公开(公告)日：2023-08-31
申请号：US18173910
申请日：2023-02-24
申请人： SEIKO EPSON CORPORATION
发明人： Hiroyuki Hosaka , Akihide Haruyama
IPC分类号： G02F1/01 , G02F1/1335 , G02F1/13363 , G02F1/133 , G02F1/1347
CPC分类号： G02F1/0136 , G02F1/133528 , G02F1/13363 , G02F1/13306 , G02F1/1347
摘要： A liquid crystal device includes a liquid crystal panel including a liquid crystal layer as a first liquid crystal layer, a first polarizing element, a second polarizing element, a first phase difference adjusting element arranged between the first polarizing element and the liquid crystal panel and including a liquid crystal layer as a second liquid crystal layer, a second phase difference adjusting element arranged between the liquid crystal panel and the second polarizing element and including a liquid crystal layer as a third liquid crystal layer, and a first phase difference controlling element driving unit and a second phase difference controlling element driving unit as control units configured to control a value of a voltage applied to the first phase difference adjusting element and the second phase difference adjusting element, based on image data input to the liquid crystal panel.

8. 发明授权

US10527889B2 Liquid-crystal display device and electronic apparatus 有权
公开(公告)号：US10527889B2
公开(公告)日：2020-01-07
申请号：US16012271
申请日：2018-06-19
申请人： SEIKO EPSON CORPORATION
发明人： Akihide Haruyama
IPC分类号： G02F1/13363 , G02F1/137 , G02F1/1337
摘要： The invention provides a new technique for improving the contrast in a liquid-crystal display device having a liquid crystal layer that is formed of pretilted liquid crystal molecules having a negative dielectric constant anisotropy. A liquid-crystal display device according to an aspect of the invention includes a liquid crystal panel in which a phase-difference compensation layer including a C plate is formed, and a phase-difference compensation member disposed on the outside of the liquid crystal panel and including an O plate or an A plate. The liquid crystal panel includes an opposing substrate, a liquid crystal layer formed of pretilted liquid crystal molecules having a negative dielectric constant anisotropy, and an element substrate.

9. 发明授权

US10488724B2 Transmissive-type liquid crystal display device and electronic apparatus 有权
公开(公告)号：US10488724B2
公开(公告)日：2019-11-26
申请号：US16274371
申请日：2019-02-13
申请人： SEIKO EPSON CORPORATION
发明人： Akihide Haruyama
IPC分类号： G02F1/136 , G02F1/1362 , G02F1/1335 , H04N9/31
CPC分类号： G02F1/136209 , G02F1/133526 , H04N9/3197 , G02F2201/123 , G02F2203/01
摘要： A first substrate includes a base material having transmissivity, a light-shielding body having a grid pattern in a plan view seen from a thickness direction of the base material, a pixel electrode, a first insulator having transmissivity that overlaps the light-shielding body in the plan view and is disposed between the base material and the pixel electrode, and a second insulator having transmissivity that overlaps the pixel electrode in the plan view and is disposed in contact with the first insulator between the base material and the pixel electrode. The second insulator has a refractive index greater than a refractive index of the first insulator. An interface between the second insulator and the first insulator has an inclined portion inclined away from a central axis along a thickness direction of the second insulator from the incident side of light toward an emitting side.

10. 发明申请

US20170212378A1 LIQUID CRYSTAL APPARATUS AND ELECTRONIC EQUIPMENT 审中-公开
公开(公告)号：US20170212378A1
公开(公告)日：2017-07-27
申请号：US15405295
申请日：2017-01-12
申请人： Seiko Epson Corporation
发明人： Akihide Haruyama , Yoshitake Tateno
IPC分类号： G02F1/13363 , G02F1/1335 , G02F1/1368
CPC分类号： G02F1/133526 , G02F1/133634
摘要： A liquid crystal panel has an element substrate which emits light transmitted through a microlens, a liquid crystal which transmits light incident from the element substrate, a counter substrate which transmits light emitted from the liquid crystal, and an optical compensation plate provided on a light emission side of the element substrate.

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