公开(公告)号：US20170221433A1

公开(公告)日：2017-08-03

申请号：US15492640

申请日：2017-04-20

Applicant: Japan Display Inc.

Inventor： Tsutomu Harada ,  Naoyuki Takasaki ,  Akira Sakaigawa

IPC: G09G3/36

CPC classification number: G09G3/3607 ,  G09G3/3413 ,  G09G3/342 ,  G09G3/3648 ,  G09G2300/0439 ,  G09G2300/0443 ,  G09G2300/0452 ,  G09G2320/0233 ,  G09G2320/0646 ,  G09G2330/021 ,  G09G2360/16

Abstract: In a display device, pixels each including first to fourth subpixels that respectively display first to third primary colors and fourth color are arranged on an image display panel. A lighting unit emits light to the panel from the rear thereof. A control unit calculates a required luminance value for each block of the display surface of the panel based on an input image signal, determines a light source lighting amount of the lighting unit based on luminance distribution information on the lighting unit so as to satisfy the required luminance value, generates luminance information on each pixel based on the luminance distribution information and light source lighting amount, generates an output image signal that drives the subpixels based on the luminance information and input image signal, controls the lighting unit by the light source lighting amount, and controls the panel by the output image signal.

公开(公告)号：US09721996B2

公开(公告)日：2017-08-01

申请号：US14952167

申请日：2015-11-25

Applicant: Japan Display Inc.

Inventor： Masaaki Kabe ,  Hidemasa Yamaguchi ,  Kojiro Ikeda ,  Akira Sakaigawa

IPC: H01L27/32 ,  G09G3/32

CPC classification number: H01L27/32 ,  G09G3/2003 ,  G09G3/32 ,  G09G2300/0452 ,  H01L27/3216 ,  H01L27/3218 ,  H01L27/3244

Abstract: A display device includes a display unit in which pixels are arranged in a matrix. The pixels each include a first sub-pixel having the largest area among sub-pixels, a second sub-pixel adjacent to the first sub-pixel and having an area smaller than that of the first sub-pixel, and a third sub-pixel adjacent to the first and second sub-pixels, having an area smaller than that of the first sub-pixel, and arranged in the same column as that of second sub-pixels. First, second, and third pixels are aligned in at least one of a column direction or a row direction and each include the first, second, and third sub-pixels that can display different one of first, second, and third colors. Areas of the first, second, and third colors displayable by the first, second, and third pixels in total are equal to one another.

公开(公告)号：US09659531B2

公开(公告)日：2017-05-23

申请号：US14668324

申请日：2015-03-25

Applicant: Japan Display Inc.

Inventor： Tsutomu Harada ,  Naoyuki Takasaki ,  Akira Sakaigawa ,  Amane Higashi

IPC: G09G3/36 ,  G09G3/34

CPC classification number: G09G3/3607 ,  G09G3/3413 ,  G09G3/342 ,  G09G3/3648 ,  G09G2300/0439 ,  G09G2300/0443 ,  G09G2300/0452 ,  G09G2320/0233 ,  G09G2320/0646 ,  G09G2330/021 ,  G09G2360/16

Abstract: In a display device, pixels each including first to fourth subpixels that respectively display first to third primary colors and fourth color are arranged on an image display panel. A lighting unit emits light to the panel from the rear thereof. A control unit calculates a required luminance value for each block of the display surface of the panel based on an input image signal, determines a light source lighting amount of the lighting unit based on luminance distribution information on the lighting unit so as to satisfy the required luminance value, generates luminance information on each pixel based on the luminance distribution information and light source lighting amount, generates an output image signal that drives the subpixels based on the luminance information and input image signal, controls the lighting unit by the light source lighting amount, and controls the panel by the output image signal.

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：US20160203778A1

公开(公告)日：2016-07-14

申请号：US15078989

申请日：2016-03-23

Applicant: Japan Display Inc.

Inventor： Yasuyuki Matsui ,  Akira Sakaigawa ,  Masaaki Kabe ,  Kenta Seki

IPC: G09G3/36

CPC classification number: G09F13/04 ,  G02F1/133514 ,  G02F2201/52 ,  G09G3/3607 ,  G09G2300/0452 ,  G09G2300/0465 ,  G09G2300/0478 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0247 ,  G09G2330/021

Abstract: Disclosed herein is a display apparatus including: a first pixel including three sub-pixels for displaying three primary colors respectively; and a second pixel including three sub-pixels for displaying two colors selected among the three primary colors and a predetermined color other than the three primary colors, wherein, in the first pixel, the size of the display surface of a sub-pixel for displaying a specific color included in the three primary colors as a specific color missing from the second pixel is larger than each of the sizes of the display surfaces of the two other sub-pixels for displaying the two other primary colors respectively.

公开(公告)号：US09324283B2

公开(公告)日：2016-04-26

申请号：US14086476

申请日：2013-11-21

Applicant: Japan Display Inc.

Inventor： Masaaki Kabe ,  Toshiyuki Nagatsuma ,  Amane Higashi ,  Kojiro Ikeda ,  Tae Kurokawa ,  Masashi Mitsui ,  Hiroki Uchiyama ,  Hirokazu Tatsuno ,  Fumitaka Goto ,  Akira Sakaigawa

IPC: G09G3/34 ,  G09G3/36 ,  G09G3/20

CPC classification number: G09G3/3607 ,  G09G3/2003 ,  G09G3/3648 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2340/06 ,  G09G2360/16

Abstract: According to an aspect, a display device includes a first sub-pixel, a second sub-pixel, a third sub-pixel; and a fourth sub-pixel. A signal obtained based on at least an input signal for the first sub-pixel and an extension coefficient is supplied to the first sub-pixel. A signal obtained based on at least an input signal for the second sub-pixel and the extension coefficient is supplied to the second sub-pixel. A signal obtained based on at least an input signal for the third sub-pixel and the extension coefficient is supplied to the third sub-pixel. A signal obtained based on at least the input signal for the first sub-pixel, the input signal for the second sub-pixel, the input signal for the third sub-pixel, and the extension coefficient is supplied to the fourth sub-pixel. The extension coefficient varies based on at least a saturation of the input signals.

Abstract translation: 根据一个方面，显示装置包括第一子像素，第二子像素，第三子像素; 和第四子像素。 至少基于第一子像素的输入信号获得的信号和扩展系数被提供给第一子像素。 至少基于第二子像素的输入信号获得的信号和扩展系数被提供给第二子像素。 至少基于第三子像素的输入信号获得的信号和扩展系数被提供给第三子像素。 基于至少基于第一子像素的输入信号，第二子像素的输入信号，第三子像素的输入信号和扩展系数获得的信号被提供给第四子像素。 扩展系数至少基于输入信号的饱和度而变化。

公开(公告)号：US20160091642A1

公开(公告)日：2016-03-31

申请号：US14821188

申请日：2015-08-07

Applicant: Japan Display Inc.

Inventor： Akira Sakaigawa ,  Yoneharu Takubo

IPC: G02B5/20 ,  F21V8/00 ,  G02F1/1335

CPC classification number: G02B5/201 ,  G02B6/002 ,  G02B6/0068 ,  G02B6/0073 ,  G02B6/0083 ,  G02F1/133514 ,  G02F1/133603 ,  G02F2001/133614 ,  G02F2201/52

Abstract: According to one embodiment, a first substrate includes first to fourth pixel electrodes. A color filter layer includes a red filter opposed to the first pixel electrode, a green filter opposed to the second pixel electrode, a first blue filter opposed to the third pixel electrode and having a peak of transmittance at a wavelength shorter than 460 nm, and a second blue filter opposed to the fourth pixel electrode and having a peak of transmittance at a wavelength longer than 960 nm.

Abstract translation: 根据一个实施例，第一基板包括第一至第四像素电极。 滤色器层包括与第一像素电极相对的红色滤光器，与第二像素电极相对的绿色滤光器，与第三像素电极相对的第一蓝色滤光器，并且在短于460nm的波长处具有透射峰的峰值，以及 与第四像素电极相对的第二蓝色滤光器，并且在长于960nm的波长处具有透射峰。

公开(公告)号：US09196204B2

公开(公告)日：2015-11-24

申请号：US13744120

申请日：2013-01-17

Applicant: Japan Display Inc.

Inventor： Amane Higashi ,  Toshiyuki Nagatsuma ,  Akira Sakaigawa ,  Masaaki Kabe

IPC: G09G5/10 ,  G09G3/36 ,  G09G3/34 ,  G09G5/02

CPC classification number: G09G3/3611 ,  G09G3/3406 ,  G09G3/3607 ,  G09G5/02 ,  G09G2320/0233 ,  G09G2320/0276 ,  G09G2340/06

Abstract: An image processing apparatus includes an image display unit and a luminance control unit. The image display unit includes pixels arranged in a matrix, each of which is formed of a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel, and performs image display. The luminance control unit adjusts a ratio between a generation amount of first luminance generated by the first sub-pixel, the second sub-pixel, and the third sub-pixel and a generation amount of second luminance generated by the fourth sub-pixel. Over all input tones, the luminance control unit makes the generation amount of the second luminance lower than the generation amount of the first luminance and generates the second luminance so that a function representing a luminance value of the second luminance is continuous.

Abstract translation: 图像处理装置包括图像显示单元和亮度控制单元。 图像显示单元包括以矩阵形式布置的像素，每个像素由第一子像素，第二子像素，第三子像素和第四子像素形成，并执行图像显示。 亮度控制单元调整由第一子像素，第二子像素和第三子像素产生的第一亮度的产生量与由第四子像素生成的第二亮度的产生量之间的比率。 在所有输入音调上，亮度控制单元使得第二亮度的生成量低于第一亮度的产生量，并产生第二亮度，使得表示第二亮度的亮度值的函数是连续的。

公开(公告)号：US20150294441A1

公开(公告)日：2015-10-15

申请号：US14684654

申请日：2015-04-13

Applicant: Japan Display Inc.

Inventor： Akira Sakaigawa ,  Toshiyuki Nagatsuma ,  Amane Higashi ,  Masaaki Kabe

IPC: G06T5/00 ,  G09G5/10

CPC classification number: G09G5/10 ,  G09G3/3413 ,  G09G2300/0452 ,  G09G2320/0276 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2340/0428 ,  G09G2340/0457 ,  G09G2340/06

Abstract: A display device includes a conversion section which generate a data conversion signal including a first number of bits from an input signal, an error dispersion section which generates a display control signal including a second number of bits that is smaller than the first number of bits from the data conversion signal and which spatially disperses errors that occur at the time of generating the display control signal, and a display panel section which displays an image on the basis of the display control signal.

Abstract translation: 显示装置包括转换部分，其从输入信号产生包括第一位数的数据转换信号;误差色散部分，其生成包括比第一位数小的第二位数的显示控制信号， 数据转换信号，并且在空间上分散在生成显示控制信号时发生的误差;以及显示面板部分，其基于显示控制信号显示图像。

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。