公开(公告)号：US20150109352A1

公开(公告)日：2015-04-23

申请号：US14519766

申请日：2014-10-21

Applicant: Japan Display .Inc.

Inventor： Naoyuki TAKASAKI ,  Tsutomu HARADA ,  Susumu KIMURA ,  Fumitaka GOTOH

IPC: G09G5/10 ,  G09G5/02

CPC classification number: G09G3/342 ,  G02B6/0068 ,  G09G3/3406 ,  G09G3/3648 ,  G09G5/026 ,  G09G2300/0452 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2320/0666 ,  G09G2330/021 ,  G09G2360/145 ,  G09G2360/16 ,  G09G2380/10

Abstract: According to an aspect, a display device includes an image display panel; a planar light source including a light guide plate and an edge-lit light source that has light sources; and a controller. The controller sets luminance determination blocks by virtually dividing the image display panel in a light-source-arrangement-direction, identifies a luminance determination block with a highest luminance in the incidence direction, among luminance determination blocks at a same position in the light-source-arrangement-direction, identifies a luminance determination block the luminance of which is to be corrected by referring to luminance information of the light sources, and controls a light quantity of each of the light sources in such a manner that luminance of the identified luminance determination block is achieved.

Abstract translation: 根据一个方面，显示装置包括图像显示面板; 包括导光板和具有光源的边缘照明光源的平面光源; 和控制器。 控制器通过在光源布置方向上虚拟地划分图像显示面板来设置亮度确定块，在光源中的相同位置处的亮度确定块中识别入射方向上具有最高亮度的亮度确定块 通过参照光源的亮度信息来识别其亮度被校正的亮度确定块，并且以这样的方式控制每个光源的光量，使得所识别的亮度确定的亮度 块实现。

公开(公告)号：US20140285465A1

公开(公告)日：2014-09-25

申请号：US14175373

申请日：2014-02-07

Applicant: Japan Display Inc.

Inventor： Makoto HAYASHI ,  Tsutomu HARADA

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G06F2203/04107

Abstract: The touch sensor device and the display device include: a panel unit having a touch detection area in which a plurality of drive electrodes extend in an X-direction, a plurality of detection electrodes extend in a Y-direction, and a plurality of detection units each composed of a pair of the drive electrode and the detection electrode are formed in a matrix pattern; the drive electrodes each having a width forming two detection units in the Y-direction; and regions each formed by the intersection between one drive electrode and first to fourth detection electrodes. In this region, detection regions having a first sensitivity in which first to fourth detection units are provided and non-detection regions having a second sensitivity are alternately disposed. For example, the detection electrodes have different shapes between the detection region and the non-detection region.

Abstract translation: 触摸传感器装置和显示装置包括：具有触摸检测区域的面板单元，其中多个驱动电极沿X方向延伸，多个检测电极沿Y方向延伸，多个检测单元 每一个由一对驱动电极和检测电极组成，形成为矩阵图案; 驱动电极各自具有在Y方向上形成两个检测单元的宽度; 以及由一个驱动电极和第一至第四检测电极之间的交点形成的区域。 在该区域中，交替地设置具有第一至第四检测单元的第一灵敏度的检测区域和具有第二灵敏度的非检测区域。 例如，检测电极在检测区域和非检测区域之间具有不同的形状。

公开(公告)号：US20230298512A1

公开(公告)日：2023-09-21

申请号：US18137817

申请日：2023-04-21

Applicant: Japan Display Inc.

Inventor： Kazuhiko SAKO ,  Kazunari TOMIZAWA ,  Tsutomu HARADA

IPC: G09G3/32 ,  G09G3/20

CPC classification number: G09G3/32 ,  G09G3/2007 ,  G09G3/3258 ,  G09G2320/0271 ,  G09G2360/16

Abstract: According to an aspect, a display device includes a pixel including a first sub-pixel configured to emit light having a peak in a spectrum of red, a second sub-pixel configured to emit light having a peak in a spectrum of green, and a third sub-pixel configured to emit light having a peak in a spectrum of blue. The first sub-pixel, the second sub-pixel, and the third sub-pixel are inorganic light-emitting diodes. A light emission intensity of the second sub-pixel is increased at a predetermined ratio with respect to a light emission intensity of the first sub-pixel when the first sub-pixel emits light at a light emission intensity within a low-luminance range equal to or lower than a predetermined level of luminance.

公开(公告)号：US20230236416A1

公开(公告)日：2023-07-27

申请号：US18127274

申请日：2023-03-28

Applicant: Japan Display Inc.

Inventor： Tsutomu HARADA ,  Daisuke OZEKI ,  Junji KOBASHI

IPC: G02B27/01

CPC classification number: G02B27/01 ,  G02B2027/014 ,  G02B2027/0161

Abstract: According to an aspect, a head-up display device, includes: a display panel configured to display a third image that is a composite of first and second images; a parallax generator configured to generate parallax of the first image and parallax of the second image; and a projection destination part onto which projection light emitted from a display surface side of the display panel and modulated by the parallax generator is projected.

公开(公告)号：US20230039923A1

公开(公告)日：2023-02-09

申请号：US17972904

申请日：2022-10-25

Applicant: Japan Display Inc.

Inventor： Kazunari TOMIZAWA ,  Tsutomu HARADA ,  Junji KOBASHI ,  Shinichiro OKA ,  Yosuke HYODO

IPC: G02F1/1347 ,  G02F1/1335

Abstract: According to one embodiment, in a display device a first panel includes a first polarizing plate, a second polarizing plate, and a first liquid crystal panel interposed between the first polarizing plate and the second polarizing plate, a second panel includes a third polarizing plate, a fourth polarizing plate, and a second liquid crystal panel interposed between the third polarizing plate and the fourth polarizing plat, and a polarizing plate, which is located second from a surface close to an illumination device and a surface closest to an observer, has an extinction ratio that is lower than that of each of the other polarizing plates.

公开(公告)号：US20210383744A1

公开(公告)日：2021-12-09

申请号：US17407344

申请日：2021-08-20

Applicant: Japan Display Inc.

Inventor： Tsutomu HARADA ,  Tadafumi OZAKI ,  Kazunari TOMIZAWA

IPC: G09G3/32 ,  H01L27/15

Abstract: According to one embodiment, a display device includes a first power supply line, a second power supply line, a reset line, pixels, gate lines, control wiring lines, source lines, a first driver and a second driver. Each of the pixels includes a drive transistor, a light emitting element, a pixel switch, a storage capacitor and a reset switch. The reset switch is connected between the reset line and a gate electrode of the drive transistor, and switched between an ON state and an OFF state by a second control signal provided via a corresponding control wiring line among the control wiring lines.

公开(公告)号：US20210210028A1

公开(公告)日：2021-07-08

申请号：US17208682

申请日：2021-03-22

Applicant: Japan Display Inc.

Inventor： Kazuhiko SAKO ,  Tsutomu HARADA ,  Naoyuki TAKASAKI ,  Toshiyuki NAGATSUMA

IPC: G09G3/34 ,  G09G3/20 ,  G09G3/36

Abstract: A display device is provided and includes display panel comprising plurality of pixels; and light source device configured to emit light that illuminates display panel, wherein display panel is configured to control operation of light source device, display panel does not lower luminance of light for second predetermined time or longer after display panel has raised luminance of light by predetermined amount of luminance change or more within first predetermined time, and when image changes from first image other than raster image and ramp image to second image that is either of raster image and ramp image, display panel lowers luminance of light within time shorter than second predetermined time even after luminance of light has been raised by predetermined amount of luminance change or more within first predetermined time.

公开(公告)号：US20210132442A1

公开(公告)日：2021-05-06

申请号：US17144804

申请日：2021-01-08

Applicant: Japan Display Inc.

Inventor： Tsutomu HARADA ,  Shigenori AOKI ,  Koji YOSHIDA ,  Masayuki MIFUNE

IPC: G02F1/13357 ,  G02B27/01

Abstract: A display device is provided and including a backlight device including a plurality of light sources; a display panel disposed to oppose the backlight device and incline with respect to a direction perpendicular to an optical axis of the backlight device; a first diffusion plate between the display panel and the backlight device; and a second diffusion plate arranged at a predetermined angle with respect to the first diffusion plate.

公开(公告)号：US20190107754A1

公开(公告)日：2019-04-11

申请号：US16150949

申请日：2018-10-03

Applicant: Japan Display Inc.

Inventor： Kazuhiko SAKO ,  Tsutomu HARADA

IPC: G02F1/1335 ,  G02F1/1333 ,  G09G3/34 ,  G09G3/36

CPC classification number: G02F1/133603 ,  G02F1/133308 ,  G02F2001/133317 ,  G09G3/20 ,  G09G3/3426 ,  G09G3/3648

Abstract: According to an aspect, a display device includes: a display panel having a display area including a plurality of pixels; and an illuminator provided so as to overlap the display panel and configured to illuminate the display area. The illuminator has a plurality of segment blocks set in different positions in the display area. Each of the segment blocks is provided such that the luminance of the segment block is individually controlled. At least one of the segment blocks satisfies a predetermined condition. The predetermined condition is such that at least two light source rows each including a plurality of light sources arranged in a first direction are arranged in a second direction intersecting the first direction, and that none of the light sources included in the two light source rows adjacent in the second direction are in the same straight line along the second direction.

公开(公告)号：US20190064559A1

公开(公告)日：2019-02-28

申请号：US16106537

申请日：2018-08-21

Applicant: Japan Display Inc.

Inventor： Tsutomu HARADA ,  Daichi SUZUKI ,  Kazuhiko SAKO ,  Naoyuki TAKASAKI ,  Kazunari TOMIZAWA

IPC: G02F1/13357 ,  G09G3/34 ,  G09G3/36 ,  F21V8/00

Abstract: According to an aspect, a display device includes: a display panel including a display area provided with pixels; an illuminator including an illumination area configured to emit light to the display panel such that the display area is illuminated from one surface side of the display panel; and a liquid crystal dimming panel overlapping the display panel, and including a dimming area configured to be adjusted in transmittance of the light emitted to another surface side of the display panel through the display area. The illumination area includes first segment regions configured such that luminance levels thereof are individually adjusted. The dimming area includes second segment regions configured such that the light transmittances thereof are individually adjusted. Each of the first segment regions overlaps more than one of the second segment regions. Each of the second segment regions overlaps more than one of the pixels.