公开(公告)号：US10013933B2

公开(公告)日：2018-07-03

申请号：US15661616

申请日：2017-07-27

Applicant: Japan Display Inc.

Inventor： Masaya Tamaki ,  Amane Higashi

IPC: G09G3/36

CPC classification number: G09G3/3607 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2340/06

Abstract: According to an aspect, an image display panel includes: a first pixel including (d−1) sub pixels, which are first to (d−2)-th sub pixels and a (d−1)-th sub pixel, and a second pixel that is adjacent to the first pixels and includes (d−1) sub pixels, which are first to (d−2)-th sub pixels and a d-th sub pixel. A region of the image display panel includes a first pixel display region and a second pixel display region. The first to (d−2)-th sub pixels of the first pixel, one part of the (d−1)-th sub pixel, and one part of the d-th sub pixel are arranged in the first pixel display region. The first to (d−2)-th sub pixels of the second pixel, the other part of the (d−1)-th sub pixel, and the other part of the d-th sub pixel are arranged in the second pixel display region.

公开(公告)号：US09978339B2

公开(公告)日：2018-05-22

申请号：US15648177

申请日：2017-07-12

Applicant: Japan Display Inc.

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

IPC: G09G5/02 ,  G09G5/10 ,  G09G3/36

CPC classification number: G09G5/10 ,  G09G3/3607 ,  G09G3/3648 ,  G09G5/02 ,  G09G2300/0452 ,  G09G2340/0457 ,  G09G2340/06 ,  G09G2360/16

Abstract: A display device includes a signal processing unit that receives input signals, and calculates output signals to a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel. The signal processing unit calculates a frequency of pixels belonging to each of a plurality of partitions using a light quantity of a surface light source. The signal processing unit calculates an index value for each of the partitions by at least multiplying the cumulative frequency being obtained by sequentially adding the frequency of pixels from a partition having the maximum light quantity among the partitions, and the number of partitions representing a position of a partition to which the cumulative frequency belongs counted from the partition having the maximum light quantity. The signal processing unit controls luminance of the surface light source based on a partition in which the index value exceeds a threshold.

公开(公告)号：US09830886B2

公开(公告)日：2017-11-28

申请号：US14710110

申请日：2015-05-12

Applicant: Japan Display Inc.

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

IPC: G09G5/24 ,  G09G3/36 ,  G09G3/20

CPC classification number: G09G5/243 ,  G09G3/2066 ,  G09G3/2081 ,  G09G3/3607 ,  G09G3/3648 ,  G09G2300/0452 ,  G09G2320/04 ,  G09G2330/021 ,  G09G2340/06 ,  G09G2340/145

Abstract: According to an aspect, a display device includes an image display panel in which pixels each including first to fourth sub-pixels are arranged in a two-dimensional matrix; and a signal processing unit that converts an input signal into an output signal and outputs the generated output signal to the image display panel. The signal processing unit determines an expansion coefficient, obtains a generated signal of the fourth sub-pixel in each pixel based on input signals of the first to the third sub-pixels in the pixel itself and the expansion coefficient, obtains an output signal for the fourth sub-pixel in each pixel based on a generated signal of the fourth sub-pixel in the pixel itself and a generated signal of the fourth sub-pixel in an adjacent pixel to be output to the fourth sub-pixel.

公开(公告)号：US20170323604A1

公开(公告)日：2017-11-09

申请号：US15661616

申请日：2017-07-27

Applicant: Japan Display Inc.

Inventor： Masaya Tamaki ,  Amane Higashi

IPC: G09G3/36

CPC classification number: G09G3/3607 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2340/06

Abstract: According to an aspect, an image display panel includes: a first pixel including (d−1) sub pixels, which are first to (d−2)-th sub pixels and a (d−1)-th sub pixel, and a second pixel that is adjacent to the first pixels and includes (d−1) sub pixels, which are first to (d−2)-th sub pixels and a d-th sub pixel. A region of the image display panel includes a first pixel display region and a second pixel display region. The first to (d−2)-th sub pixels of the first pixel, one part of the (d−1)-th sub pixel, and one part of the d-th sub pixel are arranged in the first pixel display region. The first to (d−2)-th sub pixels of the second pixel, the other part of the (d−1)-th sub pixel, and the other part of the d-th sub pixel are arranged in the second pixel display region.

公开(公告)号：US09679535B2

公开(公告)日：2017-06-13

申请号：US14684654

申请日：2015-04-13

Applicant: Japan Display Inc.

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

IPC: G09G5/02 ,  G09G5/10 ,  G09G3/34 ,  G06T5/00 ,  G06T11/00 ,  H04N1/60 ,  H04N5/202 ,  H04N5/58 ,  H04N9/64 ,  H04N9/73

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.

公开(公告)号：US20160094838A1

公开(公告)日：2016-03-31

申请号：US14858358

申请日：2015-09-18

Applicant: Japan Display Inc.

Inventor： Takeo KOITO ,  Yingbao Yang ,  Amane Higashi

IPC: H04N13/04

CPC classification number: H04N13/31 ,  H04N13/376

Abstract: According to one embodiment, a display device includes a switching liquid crystal unit, a display, and a controller. The switching liquid crystal unit includes optical elements switching an aperture pattern including an aperture portion and a light-shielding portion. The display overlaps the switching liquid crystal unit and displays parallax images including right and left eye images. The controller acquires positional information relating to a position of a viewer, and controls a position of the aperture pattern. The controller switches the aperture pattern from a first aperture pattern to a second aperture pattern so that a right eye always views the right eye image and a left eye always views the left eye image, and starts the switching before the viewer moves to an optimal switching position where a luminance viewed from the first aperture pattern is substantially equal to a luminance viewed from the second aperture patterns.

Abstract translation: 根据一个实施例，显示装置包括开关液晶单元，显示器和控制器。 切换液晶单元包括切换包括开口部分和遮光部分的孔径图案的光学元件。 显示器与切换液晶单元重叠，并显示包括左眼图像和左眼图像的视差图像。 控制器获取与观看者的位置相关的位置信息，并且控制光圈图案的位置。 控制器将孔径图案从第一孔径图案切换到第二孔径图案，使得右眼总是观看右眼图像，并且左眼总是观看左眼图像，并且在观看者移动到最佳切换之前开始切换 从第一孔径图案观看的亮度基本上等于从第二孔径图案观察到的亮度的位置。

公开(公告)号：US09214118B2

公开(公告)日：2015-12-15

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：US20150348477A1

公开(公告)日：2015-12-03

申请号：US14724334

申请日：2015-05-28

Applicant: JAPAN DISPLAY INC.

Inventor： Masaaki Kabe ,  Toshiyuki Nagatsuma ,  Amane Higashi ,  Yoko Fukunaga

IPC: G09G3/36

CPC classification number: G09G3/3607 ,  G09G2300/0452 ,  G09G2320/0626

Abstract: According to an aspect, a display device includes: an image display panel in which pixels are arranged in a two-dimensional matrix, each of the pixels including a first sub-pixel displaying a first color, a second sub-pixel displaying a second color, a third sub-pixel displaying a third color, and a fourth sub-pixel displaying a fourth color; and a signal processing unit that converts input values of input signals into extended values in an extended color space to generate output signals, and outputs the generated output signals to the image display panel. The signal processing unit changes the output signals for the first to fourth sub-pixels based on at least saturation of the input signals.

Abstract translation: 根据一个方面，一种显示装置包括：图像显示面板，其中像素被布置成二维矩阵，每个像素包括显示第一颜色的第一子像素，显示第二颜色的第二子像素 ，显示第三颜色的第三子像素和显示第四颜色的第四子像素; 以及信号处理单元，其将输入信号的输入值转换为扩展颜色空间中的扩展值，以产生输出信号，并将所生成的输出信号输出到图像显示面板。 信号处理单元至少基于输入信号的饱和度改变第一至第四子像素的输出信号。

公开(公告)号：US20150310830A1

公开(公告)日：2015-10-29

申请号：US14692957

申请日：2015-04-22

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Toshiyuki Nagatsuma ,  Masaaki Kabe ,  Amane Higashi ,  Tae Kurokawa ,  Fumitaka Gotoh ,  Akira Sakaigama

IPC: G09G5/10 ,  G09G3/36 ,  G09G5/02 ,  G09G5/18

CPC classification number: G09G5/10 ,  G09G3/3607 ,  G09G3/3648 ,  G09G5/02 ,  G09G2300/0452 ,  G09G2340/0457 ,  G09G2340/06 ,  G09G2360/16

Abstract: A display device includes a signal processing unit that receives input signals, and calculates output signals to a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel. The signal processing unit calculates a frequency of pixels belonging to each of a plurality of partitions using a light quantity of a surface light source. The signal processing unit calculates an index value for each of the partitions by at least multiplying the cumulative frequency being obtained by sequentially adding the frequency of pixels from a partition having the maximum light quantity among the partitions, and the number of partitions representing a position of a partition to which the cumulative frequency belongs counted from the partition having the maximum light quantity. The signal processing unit controls luminance of the surface light source based on a partition in which the index value exceeds a threshold.

Abstract translation: 显示装置包括信号处理单元，其接收输入信号，并计算到第一子像素，第二子像素，第三子像素和第四子像素的输出信号。 信号处理单元使用面光源的光量来计算属于多个分区中的每一个的像素的频率。 所述信号处理单元通过以下方式来计算每个所述分区的索引值：至少乘以通过从所述分区之中具有最大光量的分区依次添加所述像素的频率而获得的累积频率， 从具有最大光量的分区计数累积频率所属的分区。 信号处理单元基于指标值超过阈值的分区来控制表面光源的亮度。

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。