公开(公告)号：US09753596B2

公开(公告)日：2017-09-05

申请号：US14821383

申请日：2015-08-07

Applicant: Japan Display Inc.

Inventor： Shigenori Aoki ,  Tsutomu Harada

IPC: G06F3/044 ,  G09G3/34 ,  G02F1/1347 ,  G06F3/041 ,  F21V8/00 ,  G02F1/1335

CPC classification number: G06F3/044 ,  G02B6/0011 ,  G02F1/13471 ,  G02F2001/133601 ,  G06F3/0412 ,  G06F3/0416 ,  G06F2203/04103 ,  G06F2203/04108 ,  G09G3/3426 ,  G09G2300/023 ,  G09G2320/066 ,  G09G2320/0686

Abstract: A display device is disclosed. In one embodiment, it includes a light source, a light guide including an entrance surface facing the light source and an exit surface from which light incident on the entrance surface exits, and a display panel including a display area in which a plurality of display pixels are arranged, with the display area facing the exit surface. The display panel is configured to selectively transmit light incident on the display area for displaying an image in the display area by driving the display pixels. A dimming panel including a dimming area faces the display area and the exit surface, and is configured to change a transmittance of light incident on the dimming area for each portion in the dimming area.

公开(公告)号：US09741293B2

公开(公告)日：2017-08-22

申请号：US14821239

申请日：2015-08-07

Applicant: Japan Display Inc.

Inventor： Tsutomu Harada ,  Akira Sakaigawa

IPC: G09G3/34

CPC classification number: G09G3/3426 ,  G09G2320/0646

Abstract: A display device is disclosed. According to one embodiment, the display device includes a light source, a dimming panel and a display panel. The dimming panel includes a dimming area with sub-areas arrayed in a matrix. The dimming panel also controls a transmittance of light from the light source in each of the sub-areas. The display panel includes a display area with pixels arrayed in a matrix and displays an image due to incident light transmitted through the dimming panel thereon. In one example, an optical separation system is arranged between the dimming panel and the display panel. It separates light from the light source into respective wavelength bands. The display panel includes corresponding liquid crystal panels on which the respective wavelength bands are made incident.

公开(公告)号：US09734770B2

公开(公告)日：2017-08-15

申请号：US14505109

申请日：2014-10-02

Applicant: Japan Display Inc.

Inventor： Fumitaka Gotoh ,  Tsutomu Harada ,  Naoyuki Takasaki

IPC: G09G3/36

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.

公开(公告)号：US09606667B2

公开(公告)日：2017-03-28

申请号：US14702279

申请日：2015-05-01

Applicant: JAPAN DISPLAY, INC.

Inventor： Kouji Noguchi ,  Tsutomu Harada ,  Yoshitoshi Kida ,  Takayuki Nakanishi ,  Koji Ishizaki ,  Takeya Takeuchi

IPC: G06F3/044 ,  G06F3/041 ,  G09G3/36 ,  G02F1/1333

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G06F3/0412 ,  G06F3/044 ,  G09G3/3614 ,  G09G3/3696 ,  G09G2310/06

Abstract: A capacitance-type touch panel, allowing disturbance noise and touch detection time to be reduced and having a simple configuration, is provided. The capacitance-type touch panel including: a plurality of drive electrodes each having a strip shape; a drive control circuit performing control such that a drive signal for touch detection is selectively applied to the drive electrodes; a plurality of touch detection electrodes arranged to intersect with the drive electrodes in such a manner that capacitance is formed in each intersecting part, and each outputting a detection signal in synchronization with the drive signal; and a detection circuit detecting an external proximity object based on the detection signal. The drive control circuit controls application of the drive signal in such a manner that the detection signal is a polarity-alternating signal including a positive-negative asymmetrical signal component which is due to presence of the external proximity object.

公开(公告)号：US09583049B2

公开(公告)日：2017-02-28

申请号：US14519766

申请日：2014-10-21

Applicant: Japan Display .Inc.

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

IPC: G09G3/34 ,  G09G3/36 ,  G09G5/02

CPC classification number: G09G3/342 ,  G02B6/0068 ,  G09G3/3406 ,  G09G3/3648 ,  G09G5/026 ,  G09G2300/0452 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2320/0666 ,  G09G2330/021 ,  G09G2360/145 ,  G09G2360/16 ,  G09G2380/10

Abstract: According to an aspect, a display device includes an image display panel; a planar light source including a light guide plate and an edge-lit light source that has light sources; and a controller. The controller sets luminance determination blocks by virtually dividing the image display panel in a light-source-arrangement-direction, identifies a luminance determination block with a highest luminance in the incidence direction, among luminance determination blocks at a same position in the light-source-arrangement-direction, identifies a luminance determination block the luminance of which is to be corrected by referring to luminance information of the light sources, and controls a light quantity of each of the light sources in such a manner that luminance of the identified luminance determination block is achieved.

Abstract translation: 根据一个方面，显示装置包括图像显示面板; 包括导光板和具有光源的边缘照明光源的平面光源; 和控制器。 控制器通过在光源布置方向上虚拟地划分图像显示面板来设置亮度确定块，在光源中的相同位置处的亮度确定块中识别入射方向上具有最高亮度的亮度确定块 通过参照光源的亮度信息来识别其亮度被校正的亮度确定块，并且以这样的方式控制每个光源的光量，使得所识别的亮度确定的亮度 块实现。

公开(公告)号：US09378691B2

公开(公告)日：2016-06-28

申请号：US14936435

申请日：2015-11-09

Applicant: Japan Display Inc.

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

IPC: G09G5/02 ,  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.

公开(公告)号：US20160093255A1

公开(公告)日：2016-03-31

申请号：US14821383

申请日：2015-08-07

Applicant: Japan Display Inc.

Inventor： Shigenori Aoki ,  Tsutomu Harada

IPC: G09G3/34 ,  G09G5/10 ,  G06F3/041 ,  G06F3/044 ,  G02F1/1335 ,  F21V8/00

CPC classification number: G06F3/044 ,  G02B6/0011 ,  G02F1/13471 ,  G02F2001/133601 ,  G06F3/0412 ,  G06F3/0416 ,  G06F2203/04103 ,  G06F2203/04108 ,  G09G3/3426 ,  G09G2300/023 ,  G09G2320/066 ,  G09G2320/0686

Abstract: According to one embodiment, a display device includes a light source, a light guide including an entrance surface facing the light source, and an exit surface from which light incident on the entrance surface exits, a display panel including a display area in which a plurality of display pixels are arranged, the display area facing the exit surface, the display panel is configured to selectively transmit light incident on the display area for displaying an image in the display area by driving the display pixels, and a dimming panel including a dimming area facing the display area and the exit surface, the dimming panel is configured to change a transmittance of light incident on the dimming area for each portion in the dimming area.

Abstract translation: 根据一个实施例，显示装置包括光源，包括面向光源的入射表面的光导以及入射在入射表面上的光的出射表面，显示面板包括显示区域，多个 显示面板被布置为面向出射表面的显示区域，显示面板被配置为选择性地透射入射在显示区域上的光，以通过驱动显示像素在显示区域中显示图像，以及调光面板，其包括调光区域 面对显示区域和出射表面，调光面板被配置为改变在调光区域中的每个部分入射到调光区域上的光的透射率。

公开(公告)号：US20160063935A1

公开(公告)日：2016-03-03

申请号：US14936435

申请日：2015-11-09

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.

公开(公告)号：US20150301689A1

公开(公告)日：2015-10-22

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 ,  G09G3/34 ,  H04N5/378 ,  G06F3/041

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，根据包括来自背光的反射光和外部环境光的总光量积累在摄像像素中的电荷。 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：US20150279286A1

公开(公告)日：2015-10-01

申请号：US14668324

申请日：2015-03-25

Applicant: Japan Display Inc.

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

IPC: G09G3/34 ,  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.

Abstract translation: 在显示装置中，分别包括分别显示第一至第三原色和第四颜色的第一至第四子像素的像素布置在图像显示面板上。 照明单元从其后面向面板发光。 控制单元基于输入图像信号计算面板的显示面的每个块的所需亮度值，基于照明单元的亮度分布信息确定照明单元的光源照明量，以满足所需的亮度值 亮度值，根据亮度分布信息和光源照射量，生成各像素的亮度信息，根据亮度信息和输入图像信号生成驱动子像素的输出图像信号，通过光源照射量 ，并通过输出图像信号控制面板。