公开(公告)号：US11854504B2

公开(公告)日：2023-12-26

申请号：US18197355

申请日：2023-05-15

Applicant: Japan Display Inc.

Inventor： Daijiro Takano ,  Takayuki Imai

IPC: G09G5/10 ,  G09G3/36

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

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：US11630347B2

公开(公告)日：2023-04-18

申请号：US17305408

申请日：2021-07-07

Applicant: Japan Display Inc.

Inventor： Takayuki Imai ,  Masayuki Ikari

IPC: G02F1/13357 ,  G02F1/1362 ,  G02F1/1335

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：US10304382B2

公开(公告)日：2019-05-28

申请号：US15635333

申请日：2017-06-28

Applicant: Japan Display Inc.

Inventor： Takayuki Imai ,  Norio Nakamura

IPC: G09G3/3233 ,  G09G3/3283 ,  G09G5/18

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：US10283085B2

公开(公告)日：2019-05-07

申请号：US15611167

申请日：2017-06-01

Applicant: Japan Display Inc.

Inventor： Takayuki Imai

IPC: G06F3/038 ,  G09G5/10 ,  G09G3/36 ,  G09G5/02

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.

公开(公告)号：US09460652B2

公开(公告)日：2016-10-04

申请号：US14546372

申请日：2014-11-18

Applicant: Japan Display Inc.

Inventor： Takayuki Imai ,  Norio Nakamura

IPC: G09G3/3208 ,  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。