公开(公告)号：US20160358558A1

公开(公告)日：2016-12-08

申请号：US15168890

申请日：2016-05-31

Applicant: Japan Display Inc.

Inventor： Naoyuki TAKASAKI ,  Tsutomu HARADA ,  Kazuhiko SAKO

IPC: G09G3/34

CPC classification number: G09G3/342 ,  G09G3/3648 ,  G09G3/3666 ,  G09G2300/0452 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/0646 ,  G09G2360/16

Abstract: According to an aspect, a display device includes an image display panel; a planar light source including a light guide plate, a first sidelight light source, and a second sidelight light source; and a control unit. The control unit sets first luminance determination blocks in a first display surface of the image display panel and identifies a first luminance determination block to be a target of luminance correction by referring to luminance information on the light sources. The control unit sets second luminance determination blocks in a second display surface of the image display panel and identifies a second luminance determination block to be a target of luminance correction by referring to the luminance information on the light sources. The control unit controls light source lighting amounts of the respective light sources to satisfy luminance of the identified first luminance determination block and the identified second luminance determination block.

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，第一侧光源和第二侧光源的平面光源; 和控制单元。 控制单元在图像显示面板的第一显示面上设置第一亮度判定块，并参照光源的亮度信息，将第一亮度判定块识别为亮度校正对象。 控制单元在图像显示面板的第二显示面上设定第二亮度判定块，并参照光源的亮度信息来识别作为亮度校正对象的第二亮度判定块。 控制单元控制各个光源的光源照射量以满足所识别的第一亮度确定块和所识别的第二亮度确定块的亮度。

公开(公告)号：US20160259219A1

公开(公告)日：2016-09-08

申请号：US15046836

申请日：2016-02-18

Applicant: Japan Display Inc.

Inventor： Shinichiro OKA ,  Youichi ASAKAWA ,  Akira SAKAIGAWA ,  Tsutomu HARADA

IPC: G02F1/1343 ,  G02F1/1335

CPC classification number: G02F1/134363 ,  G02F1/133514 ,  G02F1/133621 ,  G02F1/136286 ,  G02F2001/133622 ,  G02F2001/134345

Abstract: According to one embodiment, a display device includes a first color film of a first color and a second color film of a second color, wherein the irradiator comprises a first light source of a third color and a second light source of a fourth color, the first color and the second color have a complementary color relationship, lightness of the first color is greater than lightness of the second color, a first total displayable area of the first color film is larger than a second total displayable area of the second color film, and the irradiator is configured to radiate light of the first light source and the second light source in a switching manner by time division.

Abstract translation: 根据一个实施例，显示装置包括第一颜色的第一彩色胶片和第二颜色的第二彩色胶片，其中所述照射器包括第三颜色的第一光源和第四颜色的第二光源， 第一颜色和第二颜色具有互补色彩关系，第一颜色的亮度大于第二颜色的亮度，第一彩色胶片的第一总可显示区域大于第二彩色胶片的第二总可显示区域， 并且所述照射器被配置为通过时分方式以切换方式照射所述第一光源和所述第二光源的光。

公开(公告)号：US20160196787A1

公开(公告)日：2016-07-07

申请号：US14972250

申请日：2015-12-17

Applicant: Japan Display Inc.

Inventor： Masaaki KABE ,  Fumitaka GOTOH ,  Kazuhiko SAKO ,  Toshiyuki NAGATSUMA ,  Kojiro IKEDA ,  Tsutomu HARADA

IPC: G09G3/36

CPC classification number: G09G3/3607 ,  G09G3/2092 ,  G09G2300/0452 ,  G09G2340/00 ,  G09G2340/06

Abstract: According to an aspect, a display device includes an image display panel and a signal processing unit. The signal processing unit derives a generation signal for a fourth sub-pixel in each of pixels based on an input signal for a first sub-pixel, an input signal for a second sub-pixel, an input signal for a third sub-pixel, and an extension coefficient. The signal processing unit derives a correction value based on a hue of an input color corresponding to a color to be displayed based on the input signal for the first sub-pixel, the input signal for the second sub-pixel, and the input signal for the third sub-pixel. The signal processing unit derives the output signal for the fourth sub-pixel in each of the pixels based on the generation signal for the fourth sub-pixel and the correction value and outputs the output signal to the fourth sub-pixel.

Abstract translation: 根据一方面，显示装置包括图像显示面板和信号处理单元。 信号处理单元基于第一子像素的输入信号，第二子像素的输入信号，第三子像素的输入信号，导出每个像素中的第四子像素的生成信号， 和扩展系数。 信号处理单元基于第一子像素的输入信号，第二子像素的输入信号和第二子像素的输入信号，基于与要显示的颜色相对应的输入颜色的色调， 第三子像素。 信号处理单元基于第四子像素的生成信号和校正值，导出每个像素中的第四子像素的输出信号，并将输出信号输出到第四子像素。

公开(公告)号：US20150339966A1

公开(公告)日：2015-11-26

申请号：US14708406

申请日：2015-05-11

Applicant: Japan Display Inc.

Inventor： Tsutomu HARADA ,  Hiroki UCHIYAMA ,  Toshiyuki NAGATSUMA

IPC: G09G3/20 ,  G06T1/20 ,  G09G3/36 ,  G09G3/34

CPC classification number: G09G3/2003 ,  G06T1/20 ,  G09G3/2092 ,  G09G3/3413 ,  G09G3/36 ,  G09G5/06 ,  G09G2300/0452 ,  G09G2320/0626 ,  G09G2330/021 ,  G09G2330/022 ,  G09G2340/06 ,  G09G2360/144 ,  H04N1/46 ,  H04N1/60

Abstract: A display device includes an image processing unit that performs image processing on image data input from the outside, and performs display output corresponding to the image data on which image processing is performed by the image processing unit. The image processing unit includes a first processing circuit that simply replaces colors of an image to limit the number of colors used for the image to a predetermined number equal to or smaller than 16, a second processing circuit that performs image processing including arithmetic processing for improving luminance of a plurality of pixels constituting the image displayed on the display device corresponding to the image data; and a switching unit that causes the second processing circuit to perform image processing, and causes the first processing circuit to perform image processing when performing the image processing while saving more power than the second processing circuit.

Abstract translation: 显示装置包括对从外部输入的图像数据执行图像处理的图像处理单元，并且执行与由图像处理单元执行图像处理的图像数据相对应的显示输出。 图像处理单元包括简单地替换图像的颜色以将用于图像的颜色的数量限制为等于或小于16的预定数量的第一处理电路，执行包括用于改善的算术处理的图像处理的第二处理电路 构成对应于图像数据的在显示装置上显示的图像的多个像素的亮度; 以及切换单元，其使得所述第二处理电路执行图像处理，并且使得所述第一处理电路在执行所述图像处理时执行图像处理，同时比所述第二处理电路节省更多的电力。

公开(公告)号：US20240062707A1

公开(公告)日：2024-02-22

申请号：US18230459

申请日：2023-08-04

Applicant: Japan Display Inc.

Inventor： Tsutomu HARADA ,  Kazunari TOMIZAWA

IPC: G09G3/32 ,  G09G3/3225

CPC classification number: G09G3/32 ,  G09G3/3225 ,  G09G2320/0271 ,  G09G2320/0242

Abstract: A display device includes a plurality of light emitting devices included in a pixel, and a control circuit configured to define each of a plurality of subframe periods included in a frame period during which a frame image is displayed as one of an emission period in which the light emitting device is in an emission state and a non-emission period in which the light emitting device is in a non-emission state, and to control emission of the light emitting device, based on a gradation value of the pixel.

公开(公告)号：US20220382105A1

公开(公告)日：2022-12-01

申请号：US17886490

申请日：2022-08-12

Applicant: Japan Display Inc.

Inventor： Tsutomu HARADA

IPC: G02F1/13357 ,  G02F1/1335 ,  G09G3/34

Abstract: According to one embodiment, a display device includes a display panel including a display area which displays images, a plurality of light sources irradiating light to display an image on the display area and a control unit which sequentially causes the plurality of light source, which correspond to a plurality of areas divided from the display area, to emit light for each of the areas. The control unit repeatedly causes the light source, which corresponds to an area specified from the plurality of areas based on the image, to emit light during one frame period of displaying an image on the display area.

公开(公告)号：US20220221956A1

公开(公告)日：2022-07-14

申请号：US17706051

申请日：2022-03-28

Applicant: Japan Display Inc.

Inventor： Hayato KURASAWA ,  Kohei AZUMI ,  Koji ISHIZAKI ,  Hideki KANEKO ,  Tsutomu HARADA

IPC: G06F3/044 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1343 ,  G06F3/041

Abstract: Display device is provided and includes display part including first and second substrates, first and second polarizing plates, display area that includes pixel electrodes, a common electrode and display functional layer each of which is arranged between first and second substrates, display image formed by applying display voltage between pixel electrodes and common electrode in display period, input part including third substrate having back surface facing front surface of display part, detection electrodes formed on back surface of third substrate, and conductive layer provided between back surface of third substrate and front surface of display part, wherein conductive layer overlaps third substrate without through detection electrodes outside display area, and part of detection electrodes is uncovered by conductive layer outside display area.

公开(公告)号：US20220005420A1

公开(公告)日：2022-01-06

申请号：US17476857

申请日：2021-09-16

Applicant: Japan Display Inc.

Inventor： Kazuhiko SAKO ,  Tsutomu HARADA

IPC: G09G3/34 ,  G09G3/36

Abstract: According to an aspect, a display device includes: an image display panel having an image display surface on which display is to be controlled based on an image signal; a light source device that includes light sources provided corresponding to divided partial areas of the image display surface, and is configured to illuminate the image display surface; and a signal processor configured to calculate a light quantity of each light source for each of the partial areas. The signal processor is configured to calculate the light quantity for each partial area based on the image signal, set one of the partial areas as an adjustment target partial area for the light quantity, and adjust the light quantity in the adjustment target partial area when the light quantity of an adjacent partial area located around the adjustment target partial area is equal to or smaller than a predetermined value.

公开(公告)号：US20210174753A1

公开(公告)日：2021-06-10

申请号：US17181276

申请日：2021-02-22

Applicant: Japan Display Inc.

Inventor： Tsutomu HARADA ,  Kazunari TOMIZAWA ,  Kazunori YAMAGUCHI

IPC: G09G3/34 ,  H01L27/32

Abstract: According to one embodiment, a display device includes a display panel on which a plurality of pixels having a light emitting element is disposed and a display control unit configured to display an image on the display panel by causing each of the plurality of pixels to emit light based on a pixel signal that defines luminance of each of the plurality of pixels. The display control unit is configured to display the image by decreasing luminance of a first pixel which is a protection target pixel of the plurality of pixels and increasing luminance of a second pixel disposed around the first pixel.

公开(公告)号：US20190278404A1

公开(公告)日：2019-09-12

申请号：US16423980

申请日：2019-05-28

Applicant: Japan Display Inc.

Inventor： Koji ISHIZAKI ,  Kouji NOGUCHI ,  Tsutomu HARADA ,  Takeya TAKEUCHI ,  Yoshitoshi KIDA ,  Takayuki NAKANISHI

IPC: G06F3/044 ,  G09G3/36 ,  G06F3/041 ,  G02F1/1333

Abstract: A detection device includes a plurality of drive electrodes, wherein: in a first mode, a first drive electrode block including a first number of the drive electrodes are supplied with a first drive signal; in a second mode, a second drive electrode block including a second number of the drive electrodes are supplied with a second drive signal; and the first number is different from the second number.