公开(公告)号：US20240381509A1

公开(公告)日：2024-11-14

申请号：US18781408

申请日：2024-07-23

Applicant: Japan Display Inc.

Inventor： Kazunori YAMAGUCHI ,  Hiroyuki WAKANA ,  Takayuki IMAI

IPC: H05B47/105 ,  F21V33/00 ,  G02F1/1347 ,  G06F1/16 ,  H05B47/175 ,  H05B47/19

Abstract: According to an aspect, an illumination device includes a light source, a light adjustment device configured to control a light distribution angle of light emitted from the light source, and a controller configured to control the light adjustment device. The controller includes a storage configured to hold correspondence information indicating a correspondence relation between first data that is input from a control device and second data that is used to control the light distribution angle, a data generator configured to generate second data by adjusting the first data based on the correspondence information, and a driver configured to drive the light adjustment device based on the second data.

公开(公告)号：US20220011638A1

公开(公告)日：2022-01-13

申请号：US17305408

申请日：2021-07-07

Applicant: Japan Display Inc.

Inventor： Takayuki IMAI ,  Masayuki IKARI

IPC: G02F1/1362

Abstract: According to one embodiment, a display device includes a first transparent substrate having a first side surface extending over a first area, a second area and a third area, a second transparent substrate opposed to the first transparent substrate in the third area, a polymer dispersed liquid crystal layer, a first wiring board mounted with a first light-emitting element in the first area, a second wiring board mounted with a second light-emitting element in the second area, a first terminal connected to a power supply in the first area, a second terminal connected to the second wiring board in the second area, and a first conductive layer arranged on the first side surface and connected to the first terminal and the second terminal.

公开(公告)号：US20240389209A1

公开(公告)日：2024-11-21

申请号：US18785955

申请日：2024-07-26

Applicant: Japan Display Inc.

Inventor： Kazunori YAMAGUCHI ,  Hiroyuki WAKANA ,  Takayuki IMAI

IPC: H05B47/105 ,  F21V9/40 ,  F21V33/00 ,  G02F1/1347 ,  H05B47/175 ,  H05B47/19

Abstract: An illumination device includes a light source, a light adjustment device configured to control a light distribution angle of light emitted from the light source, and a controller configured to control the light source and the light adjustment device. The controller includes a storage configured to hold information indicating a correspondence relation between an irradiation area calculated based on a light distribution angle command value and an irradiation area ratio to a predetermined reference irradiation area, a light emission intensity generator configured to generate light emission intensity of the light source based on the information, and a driver configured to drive the light source based on the light emission intensity.

公开(公告)号：US20240192570A1

公开(公告)日：2024-06-13

申请号：US18439314

申请日：2024-02-12

Applicant: Japan Display Inc.

Inventor： Takayuki IMAI ,  Kojiro IKEDA ,  Takeo KOITO

IPC: G02F1/29

CPC classification number: G02F1/29 ,  G02F2203/07

Abstract: In a method for driving an optical element including a first liquid crystal cell, the first liquid crystal cell includes a first substrate on which first and second transparent electrodes are arranged in a first direction, a second substrate on which third and fourth transparent electrodes are arranged in a second direction, and a first liquid crystal layer between the first substrate and the second substrate, and the method includes the steps of inputting a first signal to the first transparent electrode, inputting a second signal having a phase difference of π with respect to the first signal to the second transparent electrode, inputting a third signal having a phase difference of α with respect to the first signal to the third transparent electrode, and inputting a fourth signal having a phase difference of π with respect to the third signal to the fourth transparent electrode.

公开(公告)号：US20150138257A1

公开(公告)日：2015-05-21

申请号：US14546372

申请日：2014-11-18

Applicant: Japan Display Inc.

Inventor： Takayuki IMAI ,  Norio NAKAMURA

IPC: G09G3/32

CPC classification number: G09G3/3208 ,  G09G2320/0242 ,  G09G2320/0276 ,  G09G2320/046 ,  G09G2320/0666 ,  G09G2320/0673 ,  G09G2330/021

Abstract: According to one embodiment, a display device displays an n−1th frame (n is an integer which is greater than or equal 2) and an nth frame in this order. The display device includes a display panel, calculator, adjuster, and controller. The calculator calculates power consumption of the n−1th frame. The adjuster determines whether or not the nth frame is brighter than the n−1th frame, and adjusts brightness of the nth frame based on a brightness adjustment magnification of the nth frame calculated based on the power consumption of the n−1th frame and a decreasing function, when the nth frame is not brighter than the n−1th frame. The controller stops light emission with an arbitrary timing when the nth frame is displayed, when the nth frame is brighter than the n−1th frame.

Abstract translation: 根据一个实施例，显示装置依次显示n-1帧（n是大于或等于2的整数）和第n帧。 显示装置包括显示面板，计算器，调节器和控制器。 计算器计算第n帧的功耗。 调整器确定第n帧是否比第n-1帧更亮，并且基于基于第n-1帧的功耗计算的第n帧的亮度调整倍数和减小第n帧的亮度来调整第n帧的亮度 功能，当第n帧不比第n帧更亮时。 当第n帧比第n-1帧亮时，控制器在第n帧显示时以任意定时停止发光。

公开(公告)号：US20230377529A1

公开(公告)日：2023-11-23

申请号：US18197355

申请日：2023-05-15

Applicant: Japan Display Inc.

Inventor： Daijiro TAKANO ,  Takayuki IMAI

IPC: G09G3/36

CPC classification number: G09G3/36 ,  G09G2310/0202 ,  G09G2320/0271 ,  G09G2320/0257 ,  G09G2320/0295 ,  G09G2310/08

Abstract: A display device includes: a display panel having a display region in which pixels are arranged; scan lines each coupled to the pixels arranged in a row direction; signal lines each coupled to the pixels arranged in a column direction; a signal line drive circuit; a scan line drive circuit selecting the scan lines; and a signal processing circuit. A second half period of a selection period of a first scan line overlaps a first half period of a selection period of a second scan line. The signal processing circuit adjusts a pixel gradation value of the pixel in an m-th column coupled to the second scan line when a difference value between the pixel gradation value of the pixel in the m-th column coupled to the first scan line and an average gradation value of the pixels arranged in the m-th column is larger than a predetermined value.

公开(公告)号：US20230324746A1

公开(公告)日：2023-10-12

申请号：US18336193

申请日：2023-06-16

Applicant: Japan Display Inc.

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

IPC: G02F1/1345 ,  G02F1/1343

CPC classification number: G02F1/13452 ,  G02F1/134309

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：US20210287623A1

公开(公告)日：2021-09-16

申请号：US17336670

申请日：2021-06-02

Applicant: Japan Display Inc.

Inventor： Shunsuke NOICHI ,  Takayuki IMAI

IPC: G09G3/36

Abstract: According to one embodiment, a display device includes a display panel including pixels arranged in a matrix, a common electrode, a pixel electrode disposed for each of the pixels, and a liquid crystal layer containing a polymer and liquid crystal molecules, a light source, and a controller controlling a voltage between the common electrode and the pixel electrode, and controlling an operation of the light source. The controller applies a voltage corresponding to an image component to write the image component between the common electrode and the pixel electrode in order from the pixel located on an opposite side to the light source in a first period, and turns on the light source to display an image corresponding to the written image component on the display panel in the first period.

公开(公告)号：US20170301291A1

公开(公告)日：2017-10-19

申请号：US15635333

申请日：2017-06-28

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：US20240319527A1

公开(公告)日：2024-09-26

申请号：US18735905

申请日：2024-06-06

Applicant: Japan Display Inc.

Inventor： Takayuki IMAI ,  Kazunori YAMAGUCHI ,  Hiroyuki WAKANA

IPC: G02F1/133 ,  G02F1/1335

CPC classification number: G02F1/13306 ,  G02F1/133531

Abstract: An illumination control device includes a storage that is non-transitory and stores setting information for controlling a light emitter configured to emit light, and a controller that writes the setting information as of then to the storage when a request for writing the setting information is input and reads the setting information from the storage when a request for reading the setting information is input. The light emitter is controlled based on the setting information read by the controller.