公开(公告)号：US09262970B2

公开(公告)日：2016-02-16

申请号：US14223306

申请日：2014-03-24

Applicant: Japan Display Inc.

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

IPC: G09G3/36 ,  G09G3/34 ,  G06F1/32

CPC classification number: G09G3/3406 ,  G06F1/32 ,  G06F1/3265 ,  G09G3/3607 ,  G09G3/3648 ,  G09G2320/0242 ,  G09G2320/0646 ,  G09G2340/06 ,  Y02D10/153

Abstract: According to an aspect, a display device includes: an image display panel; a color conversion device including a signal processing unit and a signal output unit; a planar light-source device; and a light-source-device control unit. The signal processing unit includes a color conversion circuit that converts an input signal in a reference color area into a converted input signal generated in a definition color area where a chromaticity point of at least one of a first color, a second color, and a third color is inside of a reference color area, and a four-color generation circuit that generates an output signal and a light-source-device control signal from the converted input signal. The signal output unit outputs the drive signal to each sub-pixel based on the output signal. The light-source-device control unit outputs a drive voltage for emitting white light on the planar light-source device based on the light-source-device control signal.

Abstract translation: 根据一方面，一种显示装置包括：图像显示面板; 颜色转换装置，包括信号处理单元和信号输出单元; 平面光源装置; 以及光源装置控制部。 信号处理单元包括将参考色区域中的输入信号转换为定义色区域中生成的转换输入信号的颜色转换电路，其中第一颜色，第二颜色和第三色彩中的至少一个的色度点 颜色在参考颜色区域内，以及四色生成电路，其从转换的输入信号生成输出信号和光源装置控制信号。 信号输出单元基于输出信号将驱动信号输出到每个子像素。 光源装置控制部基于光源装置控制信号，在平面光源装置上输出用于发出白光的驱动电压。

公开(公告)号：US09311886B2

公开(公告)日：2016-04-12

申请号：US14073443

申请日：2013-11-06

Applicant: Japan Display Inc.

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

IPC: G09G5/00 ,  G09G3/36 ,  G09G5/02

CPC classification number: G09G5/02 ,  G09G3/3648 ,  G09G2300/0452 ,  G09G2340/06

Abstract: According to an aspect, a display device includes an image display panel on which pixels each including sub-pixels for displaying a first color, a second color, a third color, and a fourth color are arranged, and a signal processing unit that converts an input value of an input signal for an input HSV color space into an output signal for an extended HSV color space. The signal processing unit divides the extended HSV color space into a plurality of spaces, sets limit proportion values different from each other with respect to at least two spaces of the divided spaces respectively, calculates an extension coefficient α with respect to the input signal by using the input signal and a limit proportion value set with respect to a space according to the input signal, and calculates the output signal based on at least the input signal and the extension coefficient α.

Abstract translation: 根据本发明的一个方面，一种显示装置包括图像显示面板，在该图像显示面板上布置有各自包括用于显示第一颜色，第二颜色，第三颜色和第四颜色的子像素的像素，以及信号处理单元， 用于输入HSV色彩空间的输入信号的输入值作为扩展HSV色彩空间的输出信号。 信号处理单元将扩展HSV颜色空间分割为多个空格，分别相对于分割空间的至少两个空格设定彼此不同的极限比例值，通过使用相对于输入信号计算扩展系数α 输入信号和根据输入信号相对于空间设置的限制比例值，并且至少基于输入信号和扩展系数α来计算输出信号。

公开(公告)号：US20140168284A1

公开(公告)日：2014-06-19

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: G09G3/36 ,  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：US20160148583A1

公开(公告)日：2016-05-26

申请号：US14947610

申请日：2015-11-20

Applicant: Japan Display Inc.

Inventor： Takayuki Nakanishi ,  Tatsuya Yata ,  Hirokazu Tatsuno ,  Kiyoshi Nakamura

IPC: G09G3/36

CPC classification number: G09G5/04 ,  G09G3/3225 ,  G09G2300/0452 ,  G09G2320/0666 ,  G09G2320/08 ,  G09G2330/021 ,  G09G2340/06 ,  G09G2360/144 ,  G09G2380/10

Abstract: According to an aspect, a display device includes an image display unit in which pixels each including a plurality of sub-pixels are arranged in a matrix, and a color converting unit that performs color conversion to reduce power consumption in the image display unit. The color converting unit does not perform the color conversion when total power consumption obtained by adding up the power consumption in the image display unit and power consumption in the color converting unit in a case where the color conversion is performed exceeds the power consumption in the image display unit in a case where the color conversion is not performed.

Abstract translation: 根据一个方面，一种显示装置包括：图像显示单元，其中包括多个子像素的像素排列成矩阵;以及颜色转换单元，其执行颜色转换以降低图像显示单元中的功耗。 在执行颜色转换的情况下，通过将图像显示单元中的功耗相加和色彩转换单元中的功耗相加获得的总功耗超过图像中的功耗，则颜色转换单元不执行颜色转换 在不进行颜色转换的情况下的显示单元。

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：US09704426B2

公开(公告)日：2017-07-11

申请号：US14705420

申请日：2015-05-06

Applicant: Japan Display Inc.

Inventor： Tsutomu Harada ,  Naoyuki Takasaki ,  Toshiyuki Nagatsuma ,  Hirokazu Tatsuno

IPC: G09G3/36 ,  G09G3/20 ,  G09G3/34

CPC classification number: G09G3/2003 ,  G09G3/3406 ,  G09G3/36 ,  G09G2300/0452 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2320/0673 ,  G09G2360/16

Abstract: A display device includes a first processing circuit mounted on a substrate separate from a translucent substrate constituting a display panel, and a second processing circuit mounted on the translucent substrate. The first and the second processing circuits receive the same image data. The first processing circuit includes a determination unit that uses color values of a plurality of pixels constituting an image based on the image data to determine an expansion coefficient value serving as a value for improving luminance of the image, and outputs the expansion coefficient value to the second processing circuit. The second processing circuit includes an expansion processing unit that uses the expansion coefficient value to provide expansion processing for improving the luminance of the image for the image based on the image data.

公开(公告)号：US09501983B2

公开(公告)日：2016-11-22

申请号：US14172469

申请日：2014-02-04

Applicant: Japan Display Inc.

Inventor： Hirokazu Tatsuno ,  Toshiyuki Nagatsuma ,  Akira Sakaigawa ,  Masaaki Kabe

IPC: G09G3/36 ,  G09G5/02

CPC classification number: G09G3/3607 ,  G09G3/3648 ,  G09G5/02 ,  G09G2300/0452 ,  G09G2320/0276 ,  G09G2320/0646 ,  G09G2340/06

Abstract: According to an aspect, a color conversion device includes a signal processing unit and a signal output unit. When a color specified in a predetermined color space by color data based on input signals is a color outside a defined color gamut defined in the color space, the signal processing unit generates in-defined-gamut data, and when the color specified in the color space by the color data based on the input signals is a color on a border of or inside the defined color gamut, the signal processing unit does not convert the color data based on the input signals into color data of a color different from that specified by the color data based on the input signals, and generates in-defined-gamut data identical to the color data based on the input signals, and. The signal processing unit generates output signals based on the in-defined-gamut data.

Abstract translation: 根据一个方面，一种颜色转换装置包括信号处理单元和信号输出单元。 当通过基于输入信号的颜色数据在预定色彩空间中指定的颜色是在颜色空间中定义的限定色域之外的颜色时，信号处理单元产生限定色域数据，并且当以颜色指定的颜色 基于输入信号的颜色数据的空间是限定色域的边界或内部的颜色的颜色，信号处理单元不将基于输入信号的颜色数据转换为颜色数据与颜色数据不同于 基于输入信号的颜色数据，并且基于输入信号生成与颜色数据相同的定义的色域数据。 信号处理单元基于定义的色域数据生成输出信号。

公开(公告)号：US20140285539A1

公开(公告)日：2014-09-25

申请号：US14223306

申请日：2014-03-24

Applicant: JAPAN DISPLAY INC.

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

IPC: G09G3/34 ,  G06F1/32 ,  G09G3/36

CPC classification number: G09G3/3406 ,  G06F1/32 ,  G06F1/3265 ,  G09G3/3607 ,  G09G3/3648 ,  G09G2320/0242 ,  G09G2320/0646 ,  G09G2340/06 ,  Y02D10/153

Abstract: According to an aspect, a display device includes: an image display panel; a color conversion device including a signal processing unit and a signal output unit; a planar light-source device; and a light-source-device control unit. The signal processing unit includes a color conversion circuit that converts an input signal in a reference color area into a converted input signal generated in a definition color area where a chromaticity point of at least one of a first color, a second color, and a third color is inside of a reference color area, and a four-color generation circuit that generates an output signal and a light-source-device control signal from the converted input signal. The signal output unit outputs the drive signal to each sub-pixel based on the output signal. The light-source-device control unit outputs a drive voltage for emitting white light on the planar light-source device based on the light-source-device control signal.

Abstract translation: 根据一方面，一种显示装置包括：图像显示面板; 颜色转换装置，包括信号处理单元和信号输出单元; 平面光源装置; 以及光源装置控制部。 信号处理单元包括将参考色区域中的输入信号转换为定义色区域中生成的转换输入信号的颜色转换电路，其中第一颜色，第二颜色和第三色彩中的至少一个的色度点 颜色在参考颜色区域内，以及四色生成电路，其从转换的输入信号生成输出信号和光源装置控制信号。 信号输出单元基于输出信号将驱动信号输出到每个子像素。 光源装置控制部基于光源装置控制信号，在平面光源装置上输出用于发出白光的驱动电压。

公开(公告)号：US09646567B2

公开(公告)日：2017-05-09

申请号：US14947610

申请日：2015-11-20

Applicant: Japan Display Inc.

Inventor： Takayuki Nakanishi ,  Tatsuya Yata ,  Hirokazu Tatsuno ,  Kiyoshi Nakamura

IPC: G09G3/34 ,  G09G5/04 ,  G09G3/3225

CPC classification number: G09G5/04 ,  G09G3/3225 ,  G09G2300/0452 ,  G09G2320/0666 ,  G09G2320/08 ,  G09G2330/021 ,  G09G2340/06 ,  G09G2360/144 ,  G09G2380/10

Abstract: According to an aspect, a display device includes an image display unit in which pixels each including a plurality of sub-pixels are arranged in a matrix, and a color converting unit that performs color conversion to reduce power consumption in the image display unit. The color converting unit does not perform the color conversion when total power consumption obtained by adding up the power consumption in the image display unit and power consumption in the color converting unit in a case where the color conversion is performed exceeds the power consumption in the image display unit in a case where the color conversion is not performed.

公开(公告)号：US20150339965A1

公开(公告)日：2015-11-26

申请号：US14705420

申请日：2015-05-06

Applicant: JAPAN DISPLAY INC.

Inventor： Tsutomu Harada ,  Naoyuki Takasaki ,  Toshiyuki Nagatsuma ,  Hirokazu Tatsuno

IPC: G09G3/20

CPC classification number: G09G3/2003 ,  G09G3/3406 ,  G09G3/36 ,  G09G2300/0452 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2320/0673 ,  G09G2360/16

Abstract: A display device includes a first processing circuit mounted on a substrate separate from a translucent substrate constituting a display panel, and a second processing circuit mounted on the translucent substrate. The first and the second processing circuits receive the same image data. The first processing circuit includes a determination unit that uses color values of a plurality of pixels constituting an image based on the image data to determine an expansion coefficient value serving as a value for improving luminance of the image, and outputs the expansion coefficient value to the second processing circuit. The second processing circuit includes an expansion processing unit that uses the expansion coefficient value to provide expansion processing for improving the luminance of the image for the image based on the image data.

Abstract translation: 显示装置包括安装在与构成显示面板的透光性基板分离的基板上的第一处理电路和安装在透光性基板上的第二处理电路。 第一和第二处理电路接收相同的图像数据。 第一处理电路包括：确定单元，其基于图像数据使用构成图像的多个像素的颜色值，以确定用作提高图像亮度的值的展开系数值，并将展开系数值输出到 第二处理电路。 第二处理电路包括扩展处理单元，该扩展处理单元使用扩展系数值来提供用于基于图像数据提高图像的图像的亮度的扩展处理。