公开(公告)号：US09460675B2

公开(公告)日：2016-10-04

申请号：US14198210

申请日：2014-03-05

Applicant: Japan Display Inc.

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

IPC: G09G3/36 ,  G09G3/34 ,  G09G5/06

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：US09405406B2

公开(公告)日：2016-08-02

申请号：US14705664

申请日：2015-05-06

Applicant: Japan Display Inc.

Inventor： Tsutomu Harada ,  Yoshiharu Nakajima ,  Michiru Senda ,  Kazunori Yamaguchi ,  Mitsuru Tateuchi ,  Ryoichi Tsuzaki ,  Toshikazu Maekawa

IPC: G06F3/042 ,  G06F3/041 ,  G06F3/0488 ,  G09G3/34 ,  H04N5/378

CPC classification number: G06F3/0421 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/042 ,  G06F3/04883 ,  G06F2203/04101 ,  G09G3/3406 ,  G09G2354/00 ,  G09G2360/142 ,  H04N5/378

Abstract: An image pickup device capable of stably detecting an object irrespective of use conditions while reducing manufacturing costs is provided. When illumination light from a backlight is emitted to a proximity object from an I/O display panel, an electric charge is accumulated in image pickup pixels in accordance with total light amount, including reflected light originating from the backlight and external environment light. Moreover, when the illumination light is not emitted, a discharging electric charge is released from the image pickup pixels in accordance with the amount of environment light. Thereby, an environment light component is subtracted from an image pickup signal obtained from each of the image pickup pixels, so object information about the proximity object is obtained without influence of the environment light. Moreover, in a light reception drive circuit, fewer frame memories for producing a picked-up image from the image pickup signal are necessary.

Abstract translation: 提供能够在不影响使用条件的同时稳定地检测物体的同时降低制造成本的图像拾取装置。 当来自背光源的照明光从I / O显示面板发射到接近物体时，根据包含来自背光和外部环境光的反射光的总光量积累摄像像素中的电荷。 此外，当不发出照明光时，根据环境光的量，从摄像像素中释放放电电荷。 因此，从从每个摄像像素获得的摄像信号中减去环境光分量，从而获得关于邻近物体的对象信息而不受环境光的影响。 此外，在光接收驱动电路中，需要较少的用于从摄像信号产生拾取图像的帧存储器。

公开(公告)号：US09305520B2

公开(公告)日：2016-04-05

申请号：US13740683

申请日：2013-01-14

Applicant: Japan Display Inc.

Inventor： Amane Higashi ,  Tsutomu Harada ,  Yasuyuki Teranishi ,  Masaya Tamaki

IPC: G09G3/20 ,  G09G5/10

CPC classification number: G09G5/10 ,  G09G3/2059 ,  G09G2340/0428

Abstract: An image display apparatus includes: a grayscale conversion device configured to perform grayscale conversion processing on input data to output data; and a display device configured to operate in accordance with the output data to display an image by pixels arranged in a two-dimensional matrix state, wherein the grayscale conversion device is configured to perform first error diffusion processing for converting N0-grayscale input data into N1-grayscale data (2

Abstract translation: 一种图像显示装置，包括：灰度转换装置，被配置为对输入数据执行灰度转换处理以输出数据; 以及显示装置，被配置为根据所述输出数据进行操作以按照以二维矩阵状态排列的像素显示图像，其中所述灰度转换装置被配置为执行用于将N0-灰度输入数据转换为N1的第一误差扩散处理 - 格式数据（2

公开(公告)号：US20150302565A1

公开(公告)日：2015-10-22

申请号：US14755725

申请日：2015-06-30

Applicant: Japan Display Inc.

Inventor： Soichiro Kurokawa ,  Toshiyuki Nagatsuma ,  Tsutomu Harada

IPC: G06T5/40 ,  H04N5/202 ,  H04N5/20

CPC classification number: G06T5/40 ,  H04N5/20 ,  H04N5/202

Abstract: Disclosed herein is an image processor including: a random number sequence generation section adapted to generate a random number sequence; a random number-superimposed luminance variable generation section adapted to generate a random number-superimposed luminance variable by superimposing the random number sequence on a luminance variable; and a random number-superimposed image signal generation section adapted to generate a random number-superimposed image signal by superimposing the random number-superimposed luminance variable on an image signal.

Abstract translation: 本文公开了一种图像处理器，包括：随机数序列生成部分，适于生成随机数序列; 随机数叠加亮度变量生成部，适于通过将随机数序列叠加在亮度变量上来生成随机数叠加亮度变量; 以及适于通过将随机数叠加亮度变量叠加在图像信号上来生成随机数叠加图像信号的随机数叠加图像信号生成部分。

公开(公告)号：US09158424B2

公开(公告)日：2015-10-13

申请号：US14175373

申请日：2014-02-07

Applicant: Japan Display Inc.

Inventor： Makoto Hayashi ,  Tsutomu Harada

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G06F2203/04107

Abstract: The touch sensor device and the display device include: a panel unit having a touch detection area in which a plurality of drive electrodes extend in an X-direction, a plurality of detection electrodes extend in a Y-direction, and a plurality of detection units each composed of a pair of the drive electrode and the detection electrode are formed in a matrix pattern; the drive electrodes each having a width forming two detection units in the Y-direction; and regions each formed by the intersection between one drive electrode and first to fourth detection electrodes. In this region, detection regions having a first sensitivity in which first to fourth detection units are provided and non-detection regions having a second sensitivity are alternately disposed. For example, the detection electrodes have different shapes between the detection region and the non-detection region.

Abstract translation: 触摸传感器装置和显示装置包括：具有触摸检测区域的面板单元，其中多个驱动电极沿X方向延伸，多个检测电极沿Y方向延伸，多个检测单元 每一个由一对驱动电极和检测电极组成，形成为矩阵图案; 驱动电极各自具有在Y方向上形成两个检测单元的宽度; 以及由一个驱动电极和第一至第四检测电极之间的交点形成的区域。 在该区域中，交替地设置具有第一至第四检测单元的第一灵敏度的检测区域和具有第二灵敏度的非检测区域。 例如，检测电极在检测区域和非检测区域之间具有不同的形状。

公开(公告)号：US20150109350A1

公开(公告)日：2015-04-23

申请号：US14505145

申请日：2014-10-02

Applicant: Japan Display Inc.

Inventor： Fumitaka Gotoh ,  Tsutomu Harada ,  Masaaki Kabe ,  Tae Kurokawa ,  Kojiro Ikeda ,  Toshiyuki Nagatsuma ,  Akira Sakaigawa ,  Naoyuki Takasaki ,  Amane Higashi

IPC: G09G3/36 ,  G09G5/10

CPC classification number: G09G3/3607 ,  G09G5/10 ,  G09G2300/0452

Abstract: A display device includes: an image display unit that includes a plurality of main pixels in an image display region, the image display unit including sub-pixels; a light source that irradiates the image display region; a light source control unit that controls luminance of the light source; and a color information correction processing unit that corrects first color information that is obtained based on the luminance of the light source and an input video signal to second color information, when color information of at least one of a red pixel, a green pixel, and a blue pixel included in the first color information exceeds a predetermined threshold, the second information is corrected by degenerating color information of the red pixel, the green pixel, and the blue pixel, and by adding color information of the white pixel included in the first color information based on the degenerated color information.

Abstract translation: 显示装置包括：图像显示单元，其包括图像显示区域中的多个主要像素，所述图像显示单元包括子像素; 照射图像显示区域的光源; 光源控制单元，其控制所述光源的亮度; 以及颜色信息校正处理单元，当将红色像素，绿色像素以及绿色像素中的至少一种的颜色信息作为颜色信息时，将基于光源的亮度和输入视频信号的亮度获得的第一颜色信息校正为第二颜色信息 包括在第一颜色信息中的蓝色像素超过预定阈值，通过对红色像素，绿色像素和蓝色像素的颜色信息进行退化来校正第二信息，并且通过将包括在第一颜色信息中的第一颜色信息中的白色像素的颜色信息相加 基于退化颜色信息的颜色信息。

公开(公告)号：US12106703B2

公开(公告)日：2024-10-01

申请号：US18137817

申请日：2023-04-21

Applicant: Japan Display Inc.

Inventor： Kazuhiko Sako ,  Kazunari Tomizawa ,  Tsutomu Harada

IPC: G09G3/32 ,  G09G3/20 ,  G09G3/3258

CPC classification number: G09G3/32 ,  G09G3/2007 ,  G09G3/3258 ,  G09G2320/0271 ,  G09G2340/06 ,  G09G2360/16

Abstract: According to an aspect, a display device includes a pixel including a first sub-pixel configured to emit light having a peak in a spectrum of red, a second sub-pixel configured to emit light having a peak in a spectrum of green, and a third sub-pixel configured to emit light having a peak in a spectrum of blue. The first sub-pixel, the second sub-pixel, and the third sub-pixel are inorganic light-emitting diodes. A light emission intensity of the second sub-pixel is increased at a predetermined ratio with respect to a light emission intensity of the first sub-pixel when the first sub-pixel emits light at a light emission intensity within a low-luminance range equal to or lower than a predetermined level of luminance.

公开(公告)号：US12051383B2

公开(公告)日：2024-07-30

申请号：US17745090

申请日：2022-05-16

Applicant: Japan Display Inc.

Inventor： Tadafumi Ozaki ,  Tsutomu Harada

IPC: G09G3/36 ,  G02F1/1334

CPC classification number: G09G3/3607 ,  G02F1/1334 ,  G09G3/3677 ,  G09G2310/08

Abstract: According to an aspect, a display device includes: a display panel including a display area provided with a plurality of pixels; and a light source configured to emit light to the display panel. Writing periods and lighting periods are alternately provided in one frame period for at least one color. Each writing period is a period in which part of a pixel signal is written to a corresponding one of the pixels. Each lighting period is a period in which light is emitted to the pixel after a corresponding one of the writing periods. A light amount in at least one of the lighting periods is larger than a light amount in other lighting periods.

公开(公告)号：US11841582B2

公开(公告)日：2023-12-12

申请号：US17144804

申请日：2021-01-08

Applicant: Japan Display Inc.

Inventor： Tsutomu Harada ,  Shigenori Aoki ,  Koji Yoshida ,  Masayuki Mifune

IPC: G02F1/13357 ,  G02B27/01 ,  G09G3/32

CPC classification number: G02F1/133606 ,  G02B27/0101 ,  G02F1/133603 ,  G02B2027/0121 ,  G02F1/133605 ,  G09G3/32 ,  G09G2320/066

Abstract: A display device is provided and including a backlight device including a plurality of light sources; a display panel disposed to oppose the backlight device and incline with respect to a direction perpendicular to an optical axis of the backlight device; a first diffusion plate between the display panel and the backlight device; and a second diffusion plate arranged at a predetermined angle with respect to the first diffusion plate.

公开(公告)号：US11735132B2

公开(公告)日：2023-08-22

申请号：US17552679

申请日：2021-12-16

Applicant: Japan Display Inc.

Inventor： Tadafumi Ozaki ,  Tsutomu Harada

IPC: G09G3/36 ,  G02F1/133 ,  G09G3/20

CPC classification number: G09G3/3648 ,  G02F1/133 ,  G09G3/2003 ,  G09G2310/08

Abstract: A display device includes: a display panel to display a frame image by arranging line images; and a light source. One frame period includes sub-frame periods each including a writing period and a display period. The line images are written in units of a predetermined number of lines during the writing period. The line images that are written at a time in units of the predetermined number of lines are the same image. In two continuous sub-frame periods in the one frame period, when a line image to be written during the writing period in a preceding sub-frame period differs from a line image to be written during the writing period in a subsequent sub-frame period, a start position of the writing period in the preceding sub-frame period and a start position of the writing period in the subsequent sub-frame period are shifted by one line from each other.