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11. 发明申请

US20220404691A1 ILLUMINATION SYSTEM AND PROJECTION DEVICE 有权
公开(公告)号：US20220404691A1
公开(公告)日：2022-12-22
申请号：US17505629
申请日：2021-10-20
申请人： Coretronic Corporation
发明人： Yi-Chien Lo
IPC分类号： G03B21/20 , H04N9/31 , G03B21/00 , H04N5/74
摘要： An illumination system is adapted to provide an illumination light beam. The illumination system includes a light-source module and a light-shape adjustment module. The light-source module is adapted to emit a first light beam. The light-shape adjustment module is disposed on the transmission path of the first light beam and is adapted to adjust the light shape of the first light beam. The light-shape adjustment module includes a first light-diffusing element, a second light-diffusing element, and a first lens element. The first light beam sequentially passes through the first light-diffusing element, the first lens element, and the second light-diffusing element to form the illumination light beam. A projection device having the illumination system is also provided.

12. 发明申请

US20220398951A1 DISPLAY DEVICE AND METHOD OF CONTROLLING DISPLAY DEVICE 有权
公开(公告)号：US20220398951A1
公开(公告)日：2022-12-15
申请号：US17838256
申请日：2022-06-12
申请人： SEIKO EPSON CORPORATION
发明人： Hiroaki Shimizu , Tatsuya Yanagisawa
IPC分类号： G09G3/00 , G09G3/36 , G03B21/00 , G03B33/12 , G01J1/42 , G01J1/04
摘要： In a display device, when blue (B) light enters a first liquid crystal panel, radiated light radiated from the first liquid crystal panel contains red (R) phosphorescence having a wavelength range longer than blue (B) light due to a deterioration of a liquid crystal material. Thus, in the display device, an optical sensor device is provided behind a mirror comprised of a dichroic mirror to monitor or the like the service life of the first liquid crystal panel on the basis of a result of reception, at the optical sensor device, of light having a frequency band ranging from 600 nm to 650 nm, and makes notification of the result. Furthermore, on the basis of a result from the optical sensor device, an electrode used to suck impurities provided at the first liquid crystal panel is driven to sweep ionic impurities from a display region.

13. 发明授权

US11513340B2 Projector 有权
公开(公告)号：US11513340B2
公开(公告)日：2022-11-29
申请号：US16669122
申请日：2019-10-30
申请人： Qisda Corporation
发明人： Chih-Shiung Chien , Ming-Kuen Lin , Tsung-Hsun Wu
IPC分类号： G02B26/00 , G02B26/08 , G02B5/04 , G03B21/00 , G03B21/20
摘要： A projector including a light source, a first prism, a second prism and a digital micro-mirror device (DMD) is provided. The light source emits light. The first prism includes a first surface, a second surface and a third surface which are connected to each other around the perimeter thereof, and the illumination light enters the first prism through the first surface. The second prism has a fourth surface and a fifth surface which are connected to each other, and the fourth surface faces the second surface of the first prism. The DMD faces the third surface. The illumination light sequentially passes through the first surface, is reflected by the second surface, passes through the third surface, and reaches the DMD. The DMD converts the illumination light into image light, and the image light sequentially passes through the third surface, the second surface, the fourth surface and the fifth surface. In the first prism, a first included angle between the first surface and the third surface is more than or equal to 105 degrees.

14. 发明申请

US20220373782A1 PROJECTION APPARATUS AND CONTROL METHOD 有权
公开(公告)号：US20220373782A1
公开(公告)日：2022-11-24
申请号：US17749624
申请日：2022-05-20
申请人： FUJIFILM Corporation
发明人： Kazuki INOUE , Kazuki ISHIDA
IPC分类号： G02B26/08 , G03B21/00 , G03B21/14 , G03B21/20 , G02B27/09
摘要： A projection apparatus includes a light source, a light modulation portion, a first mirror, a second mirror, a third mirror, a fourth mirror, and a projection optical system. The light source performs irradiation with light. The light modulation portion modulates the light from the light source. The first mirror, the second mirror, the third mirror, and the fourth mirror reflect an optical image modulated by the light modulation portion. The projection optical system projects the optical image reflected by the first mirror, the second mirror, the third mirror, and the fourth mirror to a projection surface of a projection target object. The first mirror, the second mirror, the third mirror, and the fourth mirror are arranged between the light modulation portion and the projection optical system.

15. 发明申请

US20220350230A1 Transparent Display Panel and Control Method and Apparatus Therefor, Display Apparatus, and Display System 有权
公开(公告)号：US20220350230A1
公开(公告)日：2022-11-03
申请号：US17762999
申请日：2021-05-12
申请人： BOE TECHNOLOGY GROUP CO., LTD. , BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
发明人： Luqiang Guo , Tingting Luo , Guangyun Tong , Shou Li
IPC分类号： G03B21/00 , G02F1/1335 , G02F1/1343 , G02F1/1362 , G02F1/137 , G02F1/133 , G03B21/56
摘要： A transparent display panel and a control method and apparatus therefor, a display system, and a computer-readable storage medium. The transparent display panel includes: a liquid crystal panel (11), and a transflective optical film layer (12) disposed on one side of the liquid crystal panel (11), wherein a plurality of microstructures (31) for scattering incident light rays are provided in the transflective optical film layer (12), in order to present a projected image. The transparency level of the transparent display panel is determined by acquiring the ambient light intensity of the transparent display panel or a grayscale average of a projected image at each first region, and the light transmittance level of the liquid crystal panel is adjusted according to the transparency level, thereby improving the projection display effect.

16. 发明申请

US20220342288A1 OPTICAL ENGINE MODULE AND PROJECTION DEVICE 有权
公开(公告)号：US20220342288A1
公开(公告)日：2022-10-27
申请号：US17723420
申请日：2022-04-18
申请人： Coretronic Corporation
发明人： Chung-Ting Wei
IPC分类号： G03B21/14 , G03B21/00 , G03B21/20
摘要： An optical engine module and a projection device are provided. The optical engine module includes a first prism, a light valve, a second prism, and a light-shielding element. The first prism is disposed on a transmission path of an illumination light beam. The light valve is disposed on the transmission path of the illumination light beam from the first prism. The light valve has a reflection surface suitable for converting the illumination light beam into an image beam. The second prism is located between the first prism and the light valve, and is disposed on the transmission path of the illumination light beam from the first prism and on a transmission path of the image beam from the light valve. The light-shielding element is located between the first prism and the second prism.

17. 发明授权

US11480858B2 Projector and cooling device 有权
公开(公告)号：US11480858B2
公开(公告)日：2022-10-25
申请号：US17213330
申请日：2021-03-26
申请人： SEIKO EPSON CORPORATION
发明人： Kaname Nagatani
IPC分类号： G03B21/16 , G03B21/20 , G03B21/00 , H04N9/31
摘要： A projector includes a first cooling target, a cooling device, and an exterior housing. The cooling device includes a first circulation device in which working fluid circulates, a second circulation device in which a liquid refrigerant circulates, and a heat exchanger in which both of the working fluid and the liquid refrigerant flow. The first circulation device includes a first compressor, a condenser, a first expander, and a first evaporator. The second circulation device includes a first heat receiver heat-transferably connected to the first cooling target. The heat exchanger includes a first channel in which the working fluid having flowed in the first expander flows, and a second channel in which the liquid refrigerant having flowed in the first heat receiver flows. The heat exchanger cools the liquid refrigerant flowing in the second channel with the working fluid flowing in the first channel.

18. 发明申请

US20220334428A1 DISPLAY DEVICE AND PROJECTION TYPE DISPLAY DEVICE 有权
公开(公告)号：US20220334428A1
公开(公告)日：2022-10-20
申请号：US17858564
申请日：2022-07-06
申请人： JVCKENWOOD Corporation
发明人： Tadashi AIZAWA
IPC分类号： G02F1/1333 , G03B21/00 , G03B21/16
摘要： A liquid crystal display element includes a pixel region which optically modulates received illumination light for each pixel. A heat sink dissipates heat of the liquid crystal display element. A first mask member is fixed to the heat sink, is formed of a material having a lower heat transfer rate than the heat sink, includes a first opening of which the size corresponds to the size of the pixel region, and masks unnecessary light. A second mask member is arranged at a position further away from the liquid crystal display element than the first mask member, is fixed to the heat sink, is formed of a material having a higher heat transfer rate than the first mask member, includes a second opening of which the size is equal to or larger than the size of the first opening, and masks the unnecessary light.

19. 发明授权

US11442355B2 Light source device and projector 有权
公开(公告)号：US11442355B2
公开(公告)日：2022-09-13
申请号：US17476541
申请日：2021-09-16
申请人： SEIKO EPSON CORPORATION
发明人： Koichi Akiyama
IPC分类号： G03B21/20 , G02F1/1335 , G03B33/12 , G02B27/28 , G02B5/30 , G02B5/02 , G03B21/00
摘要： A light source device according to the present disclosure includes a light source section, a first polarization split element for transmitting first light with a first polarization direction from the light source section and reflecting the first light with a second polarization direction, a second polarization split element for transmitting the first light with the first polarization direction from the first polarization split element, a reflecting element for reflecting the first light with the second polarization direction from the first polarization split element, an optical element for reflecting the first light with the second polarization direction from the reflecting element, a wavelength conversion element for performing wavelength conversion on the first light from the optical element to emit second light, and a diffusion element for diffusely emitting the first light from the second polarization split element.

20. 发明申请

US20220283486A1 LIGHT SOURCE DEVICE AND PROJECTOR 有权
公开(公告)号：US20220283486A1
公开(公告)日：2022-09-08
申请号：US17681352
申请日：2022-02-25
申请人： SEIKO EPSON CORPORATION
发明人： Koichi AKIYAMA
IPC分类号： G03B21/20 , G02B27/28 , G02B27/10 , G03B21/00
摘要： A light source device according to the present disclosure includes a light source unit configured to emit a first light beam, a second light beam, and a third light beam, a first polarization split element configured to transmit the first light beam and the second light beam and reflect the third light beam, a second polarization split element configured to transmit the first light beam and reflect the second light beam, a first retardation element, a first diffusion element configured to diffuse the third light beam, a second diffusion element configured to diffuse the second light beam, and a third diffusion element configured to diffuse the first light beam. The first retardation element converts a polarization direction of the second light beam from the first polarization split element, and converts a polarization direction of the another part of the second light beam from the second polarization split element.

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