公开(公告)号：US20240118575A1

公开(公告)日：2024-04-11

申请号：US18390270

申请日：2023-12-20

Applicant: Japan Display Inc.

Inventor： Takayuki IMAI ,  Kojiro IKEDA ,  Takeo KOITO

IPC: G02F1/1347 ,  G02F1/1343 ,  G02F1/1362

CPC classification number: G02F1/1347 ,  G02F1/134309 ,  G02F1/13439 ,  G02F1/136286

Abstract: An optical device includes an optical element including a liquid crystal cell configured to distribute light emitted from a light source, a power supply part configured to generate first and second potentials, a control signal generation circuit part configured to generate a control signal that controls a pulse width of each of the first and second potentials, and a switch circuit part configured to output a first potential signal including the first potential with a first pulse width and the second potential with a second pulse width based on the control signal. The liquid crystal cell includes a first substrate on which first and second transparent electrodes are alternately arranged in a first direction, and a second substrate on which third and fourth transparent electrodes are alternately arranged in a second direction. The first potential signal is input to the first transparent electrode.

公开(公告)号：US20210373366A1

公开(公告)日：2021-12-02

申请号：US17335450

申请日：2021-06-01

Applicant: Japan Display Inc.

Inventor： Takayuki IMAI ,  Takeo KOITO

IPC: G02F1/1334 ,  G09G3/36

Abstract: According to one embodiment, a display device includes a display panel, a third transparent substrate, a light-emitting element, and a modulation element. The display panel includes a first transparent substrate, a second transparent substrate, a first liquid crystal layer of a polymer dispersed type held. The third transparent substrate has a first end portion. The light-emitting element is opposed to the first end portion. The modulation element includes a fourth transparent substrate and a fifth transparent substrate disposed between the light-emitting element and the first end portion, a second liquid crystal layer, and control electrodes for applying voltage to the second liquid crystal layer.

公开(公告)号：US20160035317A1

公开(公告)日：2016-02-04

申请号：US14812214

申请日：2015-07-29

Applicant: Japan Display Inc.

Inventor： Takayuki IMAI ,  Norio NAKAMURA

IPC: G09G5/10 ,  G09G3/32 ,  G09G5/18

CPC classification number: G09G3/3233 ,  G09G3/3283 ,  G09G5/18 ,  G09G2310/08 ,  G09G2320/0646 ,  G09G2330/021 ,  G09G2330/023

Abstract: According to one embodiment, a display device includes a display panel in which pixel units are arranged, and a controller configured to generate image signals by multiplying display data externally supplied to each line by a luminosity adjustment factor, to supply the generated image signals to the pixel units, to accumulate power consumption of each line, and to execute black insertion if the accumulated power consumption is determined to be greater than power consumption of one previous display frame by a predetermined value, wherein the luminosity adjustment factor is acquired by substituting the power consumption of one previous frame to a decreasing function, and a display pattern including a plurality of continuing black display lines is synchronized with supply of the image signals and is displayed moving the same direction of a screen scanning direction of the display panel during the black insertion.

Abstract translation: 根据一个实施例，显示装置包括其中布置有像素单元的显示面板，以及控制器，被配置为通过将外部提供给每行的显示数据乘以亮度调节因子来生成图像信号，以将所生成的图像信号提供给 像素单位，以累积每行的功耗，并且如果将累积功耗确定为大于一个先前显示帧的功耗预定值，则执行黑插入，其中通过代替功率来获取亮度调节因子 消耗一个前一帧到减小功能，并且包括多个连续黑色显示行的显示图案与图像信号的提供同步，并且在黑色插入期间显示为移动与显示面板的屏幕扫描方向相同的方向 。

公开(公告)号：US20230033124A1

公开(公告)日：2023-02-02

申请号：US17873677

申请日：2022-07-26

Applicant: Japan Display Inc.

Inventor： Takayuki IMAI ,  Kentaro OKUYAMA

IPC: G09G3/36

Abstract: A display device includes: first and second substrates with a liquid crystal therebetween; pixel electrodes and a common electrode provided to the first or second substrate; a light source including first to third light sources; and an image processor generating a signal to be provided to each pixel based on an input image signal. A frame period includes a first subframe period in which the first light source is on, a second subframe period in which the second light source is on, a third subframe period in which the third light source is on, and a fourth subframe period in which one or more of the first to third light sources are on. The image processor divides a gradation value into two values smaller than the gradation value, allocates one of the two values to the fourth subframe period, and allocates the other value to the other first subframe period.

公开(公告)号：US20220113576A1

公开(公告)日：2022-04-14

申请号：US17499078

申请日：2021-10-12

Applicant: Japan Display Inc.

Inventor： Yuuichi KANESAKA ,  Koichi NAGAO ,  Tomohide OOHIRA ,  Takayuki IMAI

IPC: G02F1/1345 ,  G02F1/1343

Abstract: According to one embodiment, a liquid crystal device includes a first liquid crystal cell, a second liquid crystal cell, a first flexible wiring board including a first terminal and connected to the first liquid crystal cell, a second flexible wiring board including a second terminal and connected to the second liquid crystal cell, and a circuit board including a first connector connected to the first terminal and a second connector connected to the second terminal. The first flexible wiring board and the second flexible wiring board are arranged without overlapping each other in plan view. A first distance from an edge of the circuit board to the first connector and a second distance from the edge to the second connector are different from each other.

公开(公告)号：US20190237015A1

公开(公告)日：2019-08-01

申请号：US16376095

申请日：2019-04-05

Applicant: JAPAN DISPLAY INC.

Inventor： Takayuki IMAI ,  Norio Nakamura

IPC: G09G3/3233 ,  G09G3/3283

CPC classification number: G09G3/3233 ,  G09G3/3283 ,  G09G5/18 ,  G09G2310/08 ,  G09G2320/0646 ,  G09G2330/021 ,  G09G2330/023

Abstract: According to one embodiment, a display device includes a display panel in which pixel units are arranged, and a controller configured to generate image signals by multiplying display data externally supplied to each line by a luminosity adjustment factor, to supply the generated image signals to the pixel units, to accumulate power consumption of each line, and to execute black insertion if the accumulated power consumption is determined to be greater than power consumption of one previous display frame by a predetermined value, wherein the luminosity adjustment factor is acquired by substituting the power consumption of one previous frame to a decreasing function, and a display pattern including a plurality of continuing black display lines is synchronized with supply of the image signals and is displayed moving the same direction of a screen scanning direction of the display panel during the black insertion.

公开(公告)号：US20170352329A1

公开(公告)日：2017-12-07

申请号：US15611167

申请日：2017-06-01

Applicant: Japan Display Inc.

Inventor： Takayuki IMAI

IPC: G09G5/10

CPC classification number: G09G5/10 ,  G09G3/36 ,  G09G5/028 ,  G09G2310/0235 ,  G09G2320/0626 ,  G09G2320/0646 ,  G09G2320/0666 ,  G09G2340/0428 ,  G09G2360/144

Abstract: According to one embodiment, a display device includes a plurality of light sources, a display panel illuminated by the light sources and a drive circuit which drives the light sources time-divisionally to emit light sequentially based on a first image signal for displaying an image in color. The drive circuit determines whether visibility of the image displayed in color deteriorates because of external light, extracts from the first image signal a brightness signal when determining that the visibility of the image deteriorates, generates a second image signal based on the brightness signal, and drives the display panel based on the second image signal when the second image signal is generated.