公开(公告)号：US11988916B2

公开(公告)日：2024-05-21

申请号：US18329934

申请日：2023-06-06

Applicant: Japan Display Inc.

Inventor： Chikyu Nakaoka ,  Masaaki Kabe

IPC: G02F1/1335 ,  G02F1/1333 ,  G02F1/13357

CPC classification number: G02F1/133504 ,  G02F1/133354 ,  G02F1/133512 ,  G02F1/133567 ,  G02F1/133602 ,  G02F1/133621 ,  G02F1/133528 ,  G02F2201/305 ,  G02F2202/28

Abstract: According to one embodiment, a display device includes a display panel that includes a display portion including pixels and a non-display portion including an opening, an illumination device, and a color separation element provided between the display panel and the illumination device. The color separation element includes a first element overlapping the pixel and a second element overlapping the opening, the first element separates illumination light from the illumination device into light of a plurality of colors and irradiates the pixel with the light, and the second element separates illumination light from the illumination device into light of a plurality of colors and irradiates the opening with the light.

公开(公告)号：US11243426B2

公开(公告)日：2022-02-08

申请号：US16700346

申请日：2019-12-02

Applicant: Japan Display Inc.

Inventor： Chikyu Nakaoka ,  Masaaki Kabe ,  Tatsuya Yata ,  Kojiro Ikeda

IPC: G02F1/1335 ,  G02F1/1362 ,  G02F1/13 ,  G02F1/13357 ,  G02B5/30 ,  G02B5/18 ,  G02B5/02 ,  G02B5/04 ,  F21V8/00 ,  G02B5/20 ,  G02B6/293 ,  G02B6/34

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.

公开(公告)号：US10789899B2

公开(公告)日：2020-09-29

申请号：US15957336

申请日：2018-04-19

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Masaaki Kabe ,  Jin Ota

IPC: G09G3/36 ,  G09G3/00

Abstract: According to an aspect, a display device includes an image display panel including: sub-pixel rows, in each of which sub-pixels for displaying different colors are periodically arrayed in a first direction, are regularly arranged in a second direction different from the first direction; signal lines in parallel to sub-pixel columns in which the sub-pixels are successively arranged in the second direction; and scan lines that sequentially select each sub-pixel row. Each of m (integer ≥2) selector signals selects n (integer ≥1) pairs of the signal lines each supplied with two signals each having a mutually reverse polarity, within a period during which each sub-pixel row is selected by a corresponding scan line, and a sum of potential changes of the n pairs of the signal lines selected by each selector signal is substantially zero when each sub-pixel row is sequentially selected by the corresponding scan line.

公开(公告)号：US10551694B2

公开(公告)日：2020-02-04

申请号：US15798504

申请日：2017-10-31

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Masaaki Kabe ,  Shinichiro Oka ,  Chikyu Nakaoka

IPC: G02F1/1343 ,  G02F1/137 ,  G02F1/1335

Abstract: According to one embodiment, a liquid crystal device includes a first substrate including a first electrode and a second electrode, a second substrate, a liquid crystal layer, and the second electrode is located on a side of the liquid crystal layer with respect to the first electrode and includes a first opening, the first opening is formed into a polygonal shape including a base portion and at least one projecting portion projecting from the base portion along a first direction, a width of the base portion along the first direction is greater than a width of the projecting portion along the first direction, and the liquid crystal layer exhibits transparency while no voltage being applied and scattering property while voltage being applied.

公开(公告)号：US10268089B2

公开(公告)日：2019-04-23

申请号：US14717289

申请日：2015-05-20

Applicant: Japan Display Inc.

Inventor： Tae Kurokawa ,  Akira Sakaigawa ,  Masaaki Kabe ,  Kojiro Ikeda ,  Amane Higashi

IPC: G02F1/1335 ,  G02F1/1343

Abstract: According to one embodiment, a display device includes a display panel, a light source, a light guide and a prism sheet. The display panel includes a display area in which unit pixels each containing first sub-pixels and second sub-pixels are arranged along a first direction and a second direction. In the display area, the first sub-pixels have a width different from that of the second sub-pixel in at least one of the first direction and the second direction, or each unit pixel contains different numbers of first sub-pixels and second sub-pixels. The prism sheet is interposed between the light guide and the display panel and includes prisms extending along a third direction inclined with respect to the second direction by an acute angle of inclination.

公开(公告)号：US10163410B2

公开(公告)日：2018-12-25

申请号：US15447312

申请日：2017-03-02

Applicant: Japan Display Inc.

Inventor： Masaaki Kabe ,  Amane Higashi ,  Yasuo Takahashi ,  Akira Sakaigawa

IPC: G09G3/36 ,  G09G3/34

Abstract: A driving method for an image display apparatus which includes an image display panel having a plurality of pixels arrayed in a two-dimensional matrix and each configured from a first subpixel for displaying a first primary color, a second subpixel for displaying a second primary color, a third subpixel for displaying a third primary color and a fourth subpixel for displaying a fourth color, and a signal processing section. The signal processing section is capable of calculating a first subpixel output signal, a second subpixel output signal, a third subpixel output signal, and a fourth subpixel output signal. The driving method includes a step of calculating a maximum value (Vmax(S)) of brightness, a saturation (S) and brightness (V(S)), and determining the expansion coefficient (α0).

公开(公告)号：US10162088B2

公开(公告)日：2018-12-25

申请号：US15653063

申请日：2017-07-18

Applicant: Japan Display Inc.

Inventor： Yasuyuki Matsui ,  Masaaki Kabe ,  Akira Sakaigawa ,  Koji Noguchi ,  Kenta Seki

IPC: G02F1/1335 ,  G02B5/20 ,  G02B5/00

Abstract: An image display apparatus including an image display panel that includes: a first color filter for passing light of a first primary and first auxiliary pixels for displaying the first primary; a second color filter for passing light of a second primary and second auxiliary pixels for displaying the second primary; a third color filter for passing light of a third primary and third auxiliary pixels for displaying the third primary; and fourth auxiliary pixels for displaying a fourth color; the first auxiliary pixels, the second auxiliary pixels, the third auxiliary pixels, and the fourth auxiliary pixels being arranged in a two-dimensional matrix, and a light shielding region disposed at least partly around the peripheral edge of each of the fourth auxiliary pixels.

公开(公告)号：US20180203307A1

公开(公告)日：2018-07-19

申请号：US15920277

申请日：2018-03-13

Applicant: Japan Display Inc.

Inventor： Koichi Nagasawa ,  Masaya Tamaki ,  Shuji Hayashi ,  Masaaki Kabe ,  Yoko Fukunaga

IPC: G02F1/1343 ,  G02F1/1337 ,  G02F1/1345 ,  H01L27/12 ,  G02F1/133

Abstract: A pixel array substrate structure includes: first and second planarizing films sequentially stacked on a substrate where a circuit unit is formed; and a relay wire formed between the first and second planarizing films, in which the relay wire electrically connects a first contact portion formed on the first planarizing film and connected to the circuit unit with a second contact portion formed at a position different from the first contact portion when seen from above, on the second planarizing film.

公开(公告)号：US09995983B2

公开(公告)日：2018-06-12

申请号：US15365245

申请日：2016-11-30

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Masaaki Kabe ,  Shinichiro Oka ,  Akira Sakaigawa

IPC: G02F1/137 ,  G02F1/1337 ,  G02F1/1335 ,  G02F1/1343

CPC classification number: G02F1/137 ,  G02F1/133553 ,  G02F1/133707 ,  G02F1/134309 ,  G02F1/134363 ,  G02F1/13439 ,  G02F2001/13756

Abstract: According to one embodiment, a liquid crystal device includes a first substrate including a first electrode and a second electrode opposed to the first electrode, a second substrate opposed to the first substrate, and a liquid crystal layer including liquid crystal molecules held between the first substrate and the second substrate, wherein the second electrode is positioned closer to the liquid crystal layer than is the first electrode and has a polygonal-shaped first opening including at least one projection, and the liquid crystal layer indicates transparency when no voltage is applied thereto and indicates scattering when a voltage is applied thereto.

公开(公告)号：US09972255B2

公开(公告)日：2018-05-15

申请号：US14724334

申请日：2015-05-28

Applicant: Japan Display Inc.

Inventor： Masaaki Kabe ,  Toshiyuki Nagatsuma ,  Amane Higashi ,  Yoko Fukunaga

IPC: G09G3/36

CPC classification number: G09G3/3607 ,  G09G2300/0452 ,  G09G2320/0626

Abstract: According to an aspect, a display device includes: an image display panel in which pixels are arranged in a two-dimensional matrix, each of the pixels including a first sub-pixel displaying a first color, a second sub-pixel displaying a second color, a third sub-pixel displaying a third color, and a fourth sub-pixel displaying a fourth color; and a signal processing unit that converts input values of input signals into extended values in an extended color space to generate output signals, and outputs the generated output signals to the image display panel. The signal processing unit changes the output signals for the first to fourth sub-pixels based on at least saturation of the input signals.