公开(公告)号：US10249251B2

公开(公告)日：2019-04-02

申请号：US15215840

申请日：2016-07-21

Applicant: Japan Display Inc.

Inventor： Tatsuya Yata ,  Takayuki Nakanishi ,  Masaya Tamaki

IPC: G09G5/00 ,  G09G3/34 ,  G09G3/36 ,  G09G5/10

Abstract: According to an aspect, a display device includes: a display unit a plurality of pixels performing that perform color reproduction by combining outputs of sub-pixels; an illumination unit including a first light source, a second light source, and a third light source; a measuring unit that measures intensity of light included in external light other than the light from the illumination unit; and a control unit that controls the intensity of the light to be emitted from each of the first light source, the second light source, and the third light source and controls gradation values of the respective sub-pixels based on the intensity of the external light measured by the measuring unit.

公开(公告)号：US10200661B2

公开(公告)日：2019-02-05

申请号：US15797880

申请日：2017-10-30

Applicant: Japan Display Inc.

Inventor： Tatsuya Yata ,  Naoyuki Takasaki

IPC: H04N9/31 ,  G03B21/20 ,  G02B27/01 ,  G02B27/28

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.

公开(公告)号：US10198989B2

公开(公告)日：2019-02-05

申请号：US15245720

申请日：2016-08-24

Applicant: Japan Display Inc.

Inventor： Takayuki Nakanishi ,  Tatsuya Yata

IPC: G09G5/00 ,  G09G3/3225 ,  G09G3/3275 ,  G09G3/20

Abstract: A display device includes an image display panel and a control unit that outputs an output signal to the image display panel and causes an image to be displayed. The control unit includes an input signal acquisition unit that acquires a correction input signal including a control input signal in which a part of data is input signal data including information of an input signal value for causing a pixel to display a predetermined color, and another part of data is a display control code, a processing content determination unit that determine processing content for processing the input signal data to generate an output signal value of the output signal based on the display control code, and an output signal generation unit that generates the output signal based on the processing content determined by the processing content determination unit and the input signal data.

公开(公告)号：US10056056B2

公开(公告)日：2018-08-21

申请号：US15602712

申请日：2017-05-23

Applicant: Japan Display Inc.

Inventor： Takayuki Nakanishi ,  Tatsuya Yata

IPC: G09G5/02

CPC classification number: G09G5/02 ,  G09G2300/0452 ,  G09G2320/0666 ,  G09G2330/021 ,  G09G2340/06

Abstract: According to an aspect, a display device includes: an image display unit in which pixels are arranged, each of the pixels including a fourth sub-pixel and surrounding sub-pixels arranged around the fourth sub-pixel, the fourth sub-pixels of the respective pixels being arranged in a two-dimensional matrix and displaying a white color component as a fourth color, each of the pixels sharing at least one of the surrounding sub-pixels with an adjacent pixel adjacent to the pixel; and a signal processing unit that, based on a first input video signal for a specific pixel and a second input video signal for an adjacent pixel adjacent to the specific pixel, generates an output signal for the surrounding sub-pixels belonging to the specific pixel and outputs the generated output signal to the image display unit.

公开(公告)号：US10032418B2

公开(公告)日：2018-07-24

申请号：US15583146

申请日：2017-05-01

Applicant: Japan Display Inc.

Inventor： Kazuhiko Sako ,  Naoyuki Takasaki ,  Tsutomu Harada ,  Tatsuya Yata ,  Shigenori Aoki

IPC: G06F3/038 ,  G09G3/34

Abstract: According to an aspect, a display apparatus includes: a plurality of light sources; a display device that includes a display area provided with n1 pixels and that is irradiated with light from the light sources; a light source controller controlling an operation of the light sources; and a display controller controlling an output gradation value of part or all of the pixels. The display area includes a plurality of partial areas, the partial areas corresponding to the light sources on a one-to-one basis. The light source controller determines the amount of light emitted from each light source corresponding to a corresponding one of the partial areas based on luminance of light required for the corresponding partial area. The display controller performs first correction and second correction when the amounts of light emitted from two light sources corresponding to two adjacent partial areas are different.

公开(公告)号：US09953557B2

公开(公告)日：2018-04-24

申请号：US15194918

申请日：2016-06-28

Applicant: Japan Display Inc.

Inventor： Tatsuya Yata ,  Takayuki Nakanishi

IPC: G09G5/02 ,  G09G3/20 ,  G09G3/3291 ,  G09G3/3233 ,  G09G3/36

CPC classification number: G09G3/2003 ,  G09G3/3233 ,  G09G3/3291 ,  G09G3/3607 ,  G09G3/3688 ,  G09G2300/0452 ,  G09G2300/0842 ,  G09G2340/0457 ,  G09G2340/06

Abstract: According to an aspect, a display device includes a plurality of pixels arranged along a row direction and a column direction. One pixel includes a set of sub-pixels including two sub-pixels that correspond to two colors complementary to each other and are arranged adjacent to each other along one of the row direction and the column direction, and two or more combinations of sub-pixels for outputting white light by combining adjacent sub-pixels are present for one sub-pixel.

公开(公告)号：US09947268B2

公开(公告)日：2018-04-17

申请号：US14518672

申请日：2014-10-20

Applicant: Japan Display Inc.

Inventor： Tatsuya Yata ,  Takayuki Nakanishi

IPC: G09G3/3233 ,  H04N5/57 ,  H04N9/73 ,  G09G5/02

CPC classification number: G09G3/3233 ,  G09G5/02 ,  G09G2300/0452 ,  G09G2320/04 ,  G09G2340/0457 ,  G09G2340/06 ,  H04N5/57 ,  H04N9/73

Abstract: The display device includes an image display unit including a plurality of pixels each including first to third sub-pixels and a fourth sub-pixel for displaying an additional color component according to an amount of lighting of a self-emitting element; a conversion processing unit that receives a first input signal including first color information for display at a predetermined pixel, where the first input signal is obtained based on an input video signal, the conversion processing unit being configured to outputs a second input signal including second color information with a saturation reduced by an amount of saturation attenuation defined such that saturation variation falls within a predetermined range according to the first color information; and a fourth sub-pixel signal processing unit that outputs, to the image display unit, a third input signal including third color information with red, green, blue components and the additional color component that are converted based on the second color information.

公开(公告)号：US09830882B2

公开(公告)日：2017-11-28

申请号：US14966014

申请日：2015-12-11

Applicant: Japan Display Inc.

Inventor： Tatsuya Yata ,  Takayuki Nakanishi

IPC: G09G5/06 ,  G09G5/04 ,  G09G5/02 ,  G09G3/36 ,  G09G5/10

CPC classification number: G09G5/02 ,  G09G3/3607 ,  G09G5/04 ,  G09G5/10 ,  G09G2300/0452 ,  G09G2320/0626 ,  G09G2320/0646 ,  G09G2320/0666 ,  G09G2330/021 ,  G09G2330/045 ,  G09G2340/06 ,  G09G2360/144 ,  G09G2360/16

Abstract: According to an aspect, a display device includes: an image display unit in which pixels each including a plurality of sub-pixels are arranged in a matrix, the sub-pixels displaying a plurality of color components; and a signal processing unit that performs color conversion on an input video signal and outputs the resultant signal to a drive circuit that controls drive of the image display unit. The signal processing unit performs color conversion on first color information so as to increase luminance within an allowance range of a change in at least one of a hue and saturation, to generate second color information, the first color information being composed of three primary colors of red, green, and blue and derived based on the input video signal.

公开(公告)号：US20170337885A1

公开(公告)日：2017-11-23

申请号：US15598552

申请日：2017-05-18

Applicant: Japan Display Inc.

Inventor： Shigenori Aoki ,  Tatsuya Yata ,  Tsutomu Harada

IPC: G09G3/34 ,  G02F1/1335 ,  G09G3/36

CPC classification number: G09G3/3426 ,  G02F1/133603 ,  G02F1/133605 ,  G02F1/133606 ,  G02F1/133611 ,  G02F2201/08 ,  G09G3/3611 ,  G09G2300/0452 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0646

Abstract: According to one embodiment, a display device includes a display panel including a first sub display area and a second sub display area, and an illumination device, wherein the illumination device includes a first light source opposed to the first sub display area, a second light source opposed to the second sub display area, and a partition positioned between the first and second light sources and the display panel, and the partition includes a first side surface surrounding the first light source, a second side surface surrounding the second light source, and a connector which connects the first side surface and the second side surface, and the connector is formed of curved surfaces, or two or more flat surfaces, or a combination of curved surfaces and flat surfaces.

公开(公告)号：US20170316746A1

公开(公告)日：2017-11-02

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

IPC: G09G3/34 ,  G02B27/01

CPC classification number: G09G3/3426 ,  G02B27/0101 ,  G02B2027/0118 ,  G09G2320/0646 ,  G09G2360/16

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.