公开(公告)号：US09613571B2

公开(公告)日：2017-04-04

申请号：US14505084

申请日：2014-10-02

Applicant: Japan Display Inc.

Inventor： Fumitaka Gotoh ,  Tsutomu Harada ,  Naoyuki Takasaki

IPC: G09G3/34 ,  G09G3/36 ,  G09G5/04

CPC classification number: G09G3/3406 ,  G09G3/3648 ,  G09G5/04 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2320/0646 ,  G09G2320/0666 ,  G09G2330/023 ,  G09G2380/10

Abstract: A display device includes: an image display unit in an image display region, the image display unit including a plurality of main pixels each including sub-pixels; a light source portion that irradiates the image display region; a signal correction unit that calculates saturation and value of the main pixels based on first color information to be displayed on a predetermined pixel, the first color information being obtained based on an input video signal, and generates second color information by correcting the first color information based on the calculated saturation and value; a signal generation unit that calculates the saturation and the value of the main pixels based on the second color information, and generates a signal for determining light source luminance of the light source based on the calculated saturation and value; and a light source control unit that controls luminance of the light source based on the signal.

公开(公告)号：US09552758B2

公开(公告)日：2017-01-24

申请号：US14708406

申请日：2015-05-11

Applicant: Japan Display Inc.

Inventor： Tsutomu Harada ,  Hiroki Uchiyama ,  Toshiyuki Nagatsuma

IPC: G09G3/20 ,  G09G3/36 ,  G06T1/20 ,  G09G3/34 ,  H04N1/46 ,  H04N1/60 ,  G09G5/06

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：US20170003813A1

公开(公告)日：2017-01-05

申请号：US15265383

申请日：2016-09-14

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Kohei Azumi ,  Koji Ishizaki ,  Hideki Kaneko ,  Tsutomu Harada

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

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G02F1/133528 ,  G02F1/134363 ,  G02F2001/134318 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04103 ,  Y10T29/49117

Abstract: The reliability of a display device with an input device is improved. A plurality of detection electrodes (input position detection electrodes) forming an electrostatic capacity between them and a common electrode of a display device to detect an input position are formed on a different substrate from substrates configuring the display device. Moreover, a polarizing plate and the substrate on which the plurality of detection electrodes are formed are adhesively fixed via, for example, an adhesive layer so that the plurality of detection electrodes are fixed so as to be separated apart from the display device. Thus, a distance between electrodes (the detection electrode and a driving electrode) for detecting an input position can be set separately from a thickness of the display device, and therefore, reduction in detection sensitivity (detection reliability) for the input position due to increase in the electrostatic capacity can be suppressed.

Abstract translation: 提高了具有输入装置的显示装置的可靠性。 在与构成显示装置的基板不同的基板上形成有多个检测电极（输入位置检测电极）与显示装置的公共电极之间形成检测输入位置的静电电容。 此外，通过例如粘合剂层将偏振片及其上形成有多个检测电极的基板粘合固定，使得多个检测电极被固定成与显示装置分离。 因此，用于检测输入位置的电极（检测电极和驱动电极）之间的距离可以与显示装置的厚度分开设置，因此由于增加而导致输入位置的检测灵敏度（检测可靠性）降低 在静电容量方面可以抑制。

公开(公告)号：US09390679B2

公开(公告)日：2016-07-12

申请号：US14184819

申请日：2014-02-20

Applicant: Japan Display Inc.

Inventor： Tsutomu Harada ,  Masaaki Kabe ,  Fumitaka Goto ,  Toshiyuki Nagatsuma

IPC: G09G5/10 ,  G09G5/04 ,  G09G3/34

CPC classification number: G09G5/04 ,  G09G3/342 ,  G09G2320/0242 ,  G09G2320/062 ,  G09G2320/0646 ,  G09G2320/0666

Abstract: According to an aspect, a display device includes: an image display panel; a signal processing unit; and a signal processing circuit. The signal processing unit calculates an extension coefficient α for an input signal, calculates an output signal of a first sub-pixel, calculates an output signal of a second sub-pixel, calculates an output signal of a third sub-pixel, calculates an output signal of a fourth sub-pixel, and calculates a control signal. The signal processing circuit performs filtering processing on the control signal by a set first time constant to calculate and output a light-source device control signal, when the control signal is smaller than a set threshold value, and performs filtering processing on the control signal by a set second time constant to calculate and output the light-source device control signal, when the control signal is equal to or larger than the threshold value.

Abstract translation: 根据一方面，一种显示装置包括：图像显示面板; 信号处理单元; 和信号处理电路。 信号处理单元计算输入信号的扩展系数α，计算第一子像素的输出信号，计算第二子像素的输出信号，计算第三子像素的输出信号，计算输出 信号，并计算控制信号。 当控制信号小于设定的阈值时，信号处理电路对设定的第一时间常数对控制信号进行滤波处理，以计算和输出光源装置控制信号，并且通过 当控制信号等于或大于阈值时，设定第二时间常数来计算和输出光源装置控制信号。

公开(公告)号：US20160148579A1

公开(公告)日：2016-05-26

申请号：US14947669

申请日：2015-11-20

Applicant: Japan Display Inc.

Inventor： Susumu Kimura ,  Fumitaka Gotoh ,  Naoyuki Takasaki ,  Tsutomu Harada

IPC: G09G3/34 ,  G09G3/36

CPC classification number: G09G3/3607 ,  G09G3/3426 ,  G09G2300/0452 ,  G09G2320/0276 ,  G09G2320/0646 ,  G09G2340/06 ,  G09G2360/16

Abstract: According to an aspect, the liquid crystal display device includes: an expansion coefficient determining unit that determines an expansion coefficient of each of partial areas based on a signal level of the first, the second, and the third colors; a luminance level determining unit that determines a luminance level of each partial area based on the signal level; a signal processing unit that uses the expansion coefficient to expand the signal level; and a light source control unit that controls brightness of a light source based on the expansion coefficient and the luminance level. The light source can change the brightness of the partial areas individually. The light source control unit controls the light source such that the brightness of the light source in a partial area having a luminance level equal to or higher than a predetermined threshold is higher than the brightness based on the expansion coefficient.

Abstract translation: 根据一个方面，液晶显示装置包括：扩展系数确定单元，其基于第一颜色，第二颜色和第三颜色的信号级确定每个部分区域的展开系数; 亮度级确定单元，其基于所述信号电平来确定每个部分区域的亮度级; 使用扩展系数来扩大信号电平的信号处理单元; 以及光源控制单元，其基于展开系数和亮度水平来控制光源的亮度。 光源可以单独改变部分区域的亮度。 光源控制单元控制光源，使得亮度等于或高于预定阈值的部分区域中的光源的亮度高于基于展开系数的亮度。

公开(公告)号：US20160093252A1

公开(公告)日：2016-03-31

申请号：US14821239

申请日：2015-08-07

Applicant: Japan Display Inc.

Inventor： Tsutomu Harada ,  Akira Sakaigawa

IPC: G09G3/34 ,  G02F1/1343 ,  G02F1/1335

CPC classification number: G09G3/3426 ,  G09G2320/0646

Abstract: According to one embodiment, a display device includes a light source, a dimming panel which comprises a dimming area including sub-areas arrayed in a matrix and controls a transmittance of light from the light source in each of the sub-areas, and a display panel which comprises a display area including pixels arrayed in a matrix and displays an image due to incident light transmitted through the dimming panel thereon.

Abstract translation: 根据一个实施例，显示设备包括光源，调光面板，其包括调光区域，该调光区域包括排列成矩阵的子区域，并且控制来自每个子区域中的光源的光的透射率，以及显示器 面板，其包括包括排列在矩阵中的像素的显示区域，并且由于透过其中的调光面板的入射光而显示图像。

公开(公告)号：US20150109349A1

公开(公告)日：2015-04-23

申请号：US14505109

申请日：2014-10-02

Applicant: Japan Display Inc.

Inventor： Fumitaka Gotoh ,  Tsutomu Harada ,  Naoyuki Takasaki

IPC: G09G5/10 ,  G02F1/133 ,  G09G3/36 ,  G02F1/1335

CPC classification number: G09G3/36 ,  G09G3/3607

Abstract: A display device includes: an image display unit that includes an image display region; a plurality of light sources that are arranged corresponding to a plurality of partial regions included in the image display region and irradiate the partial regions with light; a light amount correction processing unit that detects that the partial regions are non-display regions in which no image is displayed, and corrects a light amount of the light sources based on a predetermined threshold when the partial regions adjacent to each other are continuous non-display regions; and a light source control unit that controls the light amount of the light sources.

Abstract translation: 显示装置包括：图像显示单元，其包括图像显示区域; 多个光源，其对应于包括在图像显示区域中的多个部分区域并且用光照射该部分区域; 光量校正处理单元，其检测部分区域是不显示图像的非显示区域，并且当彼此相邻的部分区域是连续的时，基于预定阈值校正光源的光量， 展示区域 以及光源控制单元，其控制光源的光量。

公开(公告)号：US20140292840A1

公开(公告)日：2014-10-02

申请号：US14198210

申请日：2014-03-05

Applicant: Japan Display Inc.

Inventor： Tsutomu Harada ,  Akira Sakaigawa ,  Naoyuki Takasaki ,  Fumitaka Goto

IPC: G09G3/20 ,  G09G3/36

CPC classification number: G09G3/3648 ,  G09G3/3426 ,  G09G5/06 ,  G09G2300/0408 ,  G09G2300/0452 ,  G09G2320/064 ,  G09G2320/0673 ,  G09G2340/06

Abstract: According to an aspect, a display device includes: an image display panel; and a plurality of signal processing circuits that are responsible for respective regions in the image display panel, that convert an input value of an input HSV color space of an input signal to each of their own responsible regions into an extension value of an extended HSV color space to generate an output signal of the extension value for the image display panel. The signal processing circuits decide an extension coefficient αA for the image display panel in its entirety in a cooperative manner. The signal processing circuit, regarding its own responsible region, calculates an output signal of each of a first sub-pixel, a second sub-pixel, third sub-pixel, and a fourth sub-pixel.

Abstract translation: 根据一方面，一种显示装置包括：图像显示面板; 以及负责图像显示面板中的各个区域的多个信号处理电路，其将输入信号的输入HSV颜色空间的输入值转换为其各自的负责区域中的每一个，使其扩展为HSV颜色的扩展值 用于生成图像显示面板的扩展值的输出信号的空间。 信号处理电路以合作的方式整体地确定图像显示面板的扩展系数αA。 信号处理电路关于其自己的负责区域，计算第一子像素，第二子像素，第三子像素和第四子像素中的每一个的输出信号。

公开(公告)号：US20140036166A1

公开(公告)日：2014-02-06

申请号：US13954452

申请日：2013-07-30

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Kohei Azumi ,  Koji Ishizaki ,  Hideki Kaneko ,  Tsutomu Harada

IPC: G02F1/1333 ,  G02F1/1335

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G02F1/133528 ,  G02F1/134363 ,  G02F2001/134318 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04103 ,  Y10T29/49117

Abstract: The reliability of a display device with an input device is improved. A plurality of detection electrodes (input position detection electrodes) forming an electrostatic capacity between them and a common electrode of a display device to detect an input position are formed on a different substrate from substrates configuring the display device. Moreover, a polarizing plate and the substrate on which the plurality of detection electrodes are formed are adhesively fixed via, for example, an adhesive layer so that the plurality of detection electrodes are fixed so as to be separated apart from the display device. Thus, a distance between electrodes (the detection electrode and a driving electrode) for detecting an input position can be set separately from a thickness of the display device, and therefore, reduction in detection sensitivity (detection reliability) for the input position due to increase in the electrostatic capacity can be suppressed.

Abstract translation: 提高了具有输入装置的显示装置的可靠性。 在与构成显示装置的基板不同的基板上形成有多个检测电极（输入位置检测电极）与显示装置的公共电极之间形成检测输入位置的静电电容。 此外，通过例如粘合剂层将偏振片及其上形成有多个检测电极的基板粘合固定，使得多个检测电极被固定成与显示装置分离。 因此，用于检测输入位置的电极（检测电极和驱动电极）之间的距离可以与显示装置的厚度分开设置，因此由于增加而导致输入位置的检测灵敏度（检测可靠性）降低 在静电容量方面可以抑制。

公开(公告)号：US12067950B2

公开(公告)日：2024-08-20

申请号：US18370990

申请日：2023-09-21

Applicant: Japan Display Inc.

Inventor： Kazunari Tomizawa ,  Tsutomu Harada

IPC: G09G3/36

CPC classification number: G09G3/3607 ,  G09G2300/0452 ,  G09G2310/0213 ,  G09G2320/0666

Abstract: A display device includes: a display panel with pixels arranged in a first direction and a second direction; and a light source. Each pixel includes: a first sub-pixel including a color filter for a first color; and a second sub-pixel arranged adjacent to the first sub-pixel in the first direction and including a color filter for a complementary color between a second color and a third color. The light source includes: a first light emitter configured to emit light in the first color; a second light emitter configured to emit light in the second color; and a third light emitter configured to emit light in the third color. One frame period includes: a first light emission period of causing the first and second light emitters to emit light simultaneously; and a second light emission period of causing the first and third light emitters to emit light simultaneously.