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公开(公告)号：US20200036947A1
公开(公告)日：2020-01-30
申请号：US16590626
申请日：2019-10-02
Applicant: Japan Display Inc.
Inventor： Tatsuya Yata , Naoyuki Takasaki
Abstract: According to one embodiment, a display device includes an optical modulation element configured to emit image light corresponding to an image by using illumination light from an illumination device, a polarization control element configured to emit first polarized light, and second polarized light on the basis of the image light receiving from the optical modulation element, a polarization separation element configured to transmit the first polarized light as transmitted light and reflect the second polarized light as reflected light, and a projector configured to project the transmitted light onto a first projection area of a projection plane, and projects reflected light onto a second projection area of the projection plane.
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公开(公告)号：US10545370B2
公开(公告)日：2020-01-28
申请号：US16393368
申请日：2019-04-24
Applicant: Japan Display Inc.
Inventor： Tatsuya Yata , Kazunari Tomizawa
IPC: G02F1/1335 , G09G3/36 , G02F1/1362
Abstract: According to an aspect, a display device includes: a controller; and a pixel including: first to fourth sub-pixels including respective first to fourth color filters transmitting light having respective spectrum peaks falling on a spectrum of reddish green, a spectrum of bluish green, a spectrum of red, and a spectrum of blue, respectively. The first to fourth sub-pixels each include a reflective electrode reflecting light transmitted through the color filter. The first to fourth sub-pixels are each divided into sub-divided pixels having different areas to perform multiple gradation expression through a combination of whether each of the sub-divided pixels reflects light. The controller stores patterns of combinations of whether each of the sub-divided pixels reflects light according to an input signal, and controls operations of the sub-divided pixels through use of any one of the patterns based on a predetermined condition including light intensity.
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公开(公告)号：US10509521B2
公开(公告)日：2019-12-17
申请号：US15939986
申请日：2018-03-29
Applicant: Japan Display Inc.
Inventor： Masaya Tamaki , Takayuki Nakanishi , Tatsuya Yata
Abstract: An input device includes a first substrate, a light-emitting element, and a third electrode unit. The first substrate has first and second surfaces. The light-emitting element unit includes: a first conductive electrode unit including first conductive layers; a second conductive electrode unit including second conductive layers each having a size overlapping with the first conductive layer in planar view; and luminescent layers conducted with at least a part of the first electrode unit, each provided between the first and second electrode units and conducted with the first conductive layer and the second conductive layer overlapping with the first conductive layer in planar view. The third electrode unit is insulated from the first conductive layers and detects a change in an electric field between the first conductive layers and the third electrode unit depending on coordinates of a proximity object at a position overlapping with the first surface in planar view.
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公开(公告)号：US10481465B2
公开(公告)日：2019-11-19
申请号：US15923049
申请日：2018-03-16
Applicant: Japan Display Inc.
Inventor： Takayuki Nakanishi , Tatsuya Yata , Takeo Koito
IPC: G02F1/29 , G02F1/1343 , G02F1/1347 , G02F1/1335
Abstract: According to one embodiment, an illumination device includes a light source unit which emits light, a modulation element includes a modulation portion which modulates incident light, and a non-modulation portion which is adjacent to the modulation portion, and a liquid crystal element located between the light source unit and the modulation element, the liquid crystal element forming a lens between the light source unit and the modulation portion.
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公开(公告)号：US10477169B2
公开(公告)日：2019-11-12
申请号：US16225736
申请日：2018-12-19
Applicant: Japan Display Inc.
Inventor： Tatsuya Yata , Naoyuki Takasaki
Abstract: According to one embodiment, a display device includes an optical modulation element configured to emit image light corresponding to an image by using illumination light from an illumination device, a polarization control element configured to emit first polarized light, and second polarized light on the basis of the image light receiving from the optical modulation element, a polarization separation element configured to transmit the first polarized light as transmitted light and reflect the second polarized light as reflected light, and a projector configured to project the transmitted light onto a first projection area of a projection plane, and projects reflected light onto a second projection area of the projection plane.
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Patent Agency Ranking
公开(公告)号：US20190129245A1
公开(公告)日：2019-05-02
申请号：US16168996
申请日：2018-10-24
Applicant: Japan Display Inc.
Inventor： Takayuki NAKANISHI , Tatsuya Yata , Takeo Koito
IPC: G02F1/1335 , G02F1/1337 , G02F1/13363
Abstract: According to one embodiment, an optical element, including a first liquid crystal lens formed of liquid crystal molecules, a polarizer opposed to the first liquid crystal lens, a first modulating portion located between the first liquid crystal lens and the polarizer to modulate incident light and a first unmodulating portion located between the first liquid crystal lens and the polarizer and adjacent to the first modulating portion.
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公开(公告)号：US20190122620A1
公开(公告)日：2019-04-25
申请号：US16163994
申请日：2018-10-18
Applicant: Japan Display Inc.
Inventor： Tatsuya Yata , Kazunari Tomizawa
IPC: G09G3/36 , G02F1/1335
Abstract: According to an aspect, a display device includes first to fourth sub-pixels. The first to fourth sub-pixels are each divided into N (N≥2) sub-divided pixels having different areas and can perform N-bit gradation display. Gradation display for a mixed color combining two types out of the first to fourth sub-pixels includes: the N-bit gradation display including 2N-step gradation; and halftone gradation display. In first and second gradation display, an area ratio between the sub-divided pixels driven and those not driven in one of the two types is equal to that in the other of the two types. In the second gradation display, a total area ratio of the sub-divided pixels driven to those not driven is greater than that in the first gradation display. In the halftone gradation display, an area ratio between the sub-divided pixels driven and those not driven is different between the two types.
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公开(公告)号：US10235966B2
公开(公告)日：2019-03-19
申请号：US15709877
申请日：2017-09-20
Applicant: Japan Display Inc.
Inventor： Takayuki Nakanishi , Tatsuya Yata
Abstract: An image display device includes an image display unit including first pixels each constituted of sub-pixels of three or more colors included in a first color gamut and second pixels each constituted of sub-pixels of three or more colors included in a second color gamut different from the first color gamut, the first pixels and the second pixels being arranged in a matrix and adjacent to each other; and a processing unit that determines an output of the sub-pixels included in each pixel of the image display unit corresponding to an input image signal. The processing unit determines an output of the sub-pixels included in the other one of the pixels based on part of components of an input image signal corresponding to one of the first pixel and the second pixel that are adjacent to each other.
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公开(公告)号：US10140933B2
公开(公告)日：2018-11-27
申请号：US15496447
申请日：2017-04-25
Applicant: Japan Display Inc.
Inventor： Kazuhiko Sako , Naoyuki Takasaki , Tsutomu Harada , Tatsuya Yata , Shigenori Aoki
Abstract: According to an aspect, a display apparatus includes: a plurality of light sources; a display device irradiated with light from the light sources; and a controller. The display area includes a plurality of partial areas corresponding to the light sources on a one-to-one basis. Each of the partial areas includes a first area and a second area, the first area being irradiated with light from a first light source that corresponds thereto, and the second area being irradiated with light from the first light source and a second light source adjacent to the first light source. The controller controls an operation of the first light source based on whether the first area requires the light from the first light source and whether the second area obtains light required for display output by receiving the light from the second light source.
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公开(公告)号：US20180252964A1
公开(公告)日：2018-09-06
申请号：US15912007
申请日：2018-03-05
Applicant: Japan Display Inc.
Inventor： Chikyu Nakaoka , Masaaki Kabe , Tatsuya Yata , Kojiro Ikeda
IPC: G02F1/1335 , G02F1/1362
Abstract: According to one embodiment, a display device includes a first arrangement layer and a second arrangement layer. The first layer includes a first pixel, a second pixel, and a third pixel are arranged periodically in one direction. The second layer is opposed to the first layer, and the second layer includes a first element, a second element, and a third element which are arranged periodically to correspond to the first pixel, the second pixel, and the third pixel, respectively, and separate emission light to light of wavelength corresponding to a first color, light of wavelength corresponding to a second color, and light of wavelength corresponding to a third color to be emitted on the first pixel, the second pixel, and the third pixel, respectively.
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