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1. 发明公开

US20240185813A1 DISPLAY DEVICE AND DISPLAY SYSTEM 审中-公开
公开(公告)号：US20240185813A1
公开(公告)日：2024-06-06
申请号：US18521650
申请日：2023-11-28
申请人： Japan Display Inc.
发明人： Kazuhiko SAKO , Yoshihiro WATANABE , Tomoyuki ISHIHARA
IPC分类号： G09G3/36
CPC分类号： G09G3/3607 , G02B27/0172 , G09G2320/064 , G09G2320/0666
摘要： A display device includes a display panel comprising a display region for displaying an image, a light source device comprising a plurality of light sources configured to emit light toward the display panel, and a drive circuit configured to drive the display panel based on an image signal including information on the image.

2. 发明申请

US20190221168A1 DISPLAY DEVICE 审中-公开
公开(公告)号：US20190221168A1
公开(公告)日：2019-07-18
申请号：US16248232
申请日：2019-01-15
申请人： Japan Display Inc.
发明人： Kazuhiko SAKO , Tsutomu HARADA , Naoyuki TAKASAKI , Toshiyuki NAGATSUMA
IPC分类号： G09G3/34 , G09G3/20 , G09G3/36
CPC分类号： G09G3/3406 , G09G3/2003 , G09G3/2074 , G09G3/3607 , G09G2300/0452 , G09G2310/08 , G09G2320/0233 , G09G2320/0238 , G09G2360/16
摘要： According to an aspect, a display device includes a display unit including a plurality of pixels, a light source device that emits light that illuminates the display unit, and a controller that controls operation of the light source device. The controller does not lower luminance of the light for a second predetermined time or longer after the controller has raised the luminance of the light by a predetermined amount of luminance change or more within a first predetermined time.

3. 发明申请

US20190035339A1 DISPLAY DEVICE 审中-公开
公开(公告)号：US20190035339A1
公开(公告)日：2019-01-31
申请号：US16039440
申请日：2018-07-19
申请人： Japan Display Inc.
发明人： Kazuhiko SAKO , Daichi SUZUKI , Naoyuki TAKASAKI , Tsutomu HARADA , Kojiro IKEDA
IPC分类号： G09G3/34 , G09G3/20
CPC分类号： G09G3/3426 , G09G3/2007 , G09G3/3648 , G09G2300/023 , G09G2300/0426
摘要： According to an aspect, a display device includes a display panel comprising a plurality of pixels, a light guide plate, a light source configured to emit light from a lateral side of the light guide plate, a dimming panel, and a controller. The dimming panel comprises a plurality of dimming areas arranged in an emission direction of the light from the light source. The dimming areas are capable of individually changing transmittance of the light according to intensities of light required to display an image using the display panel. When adjacent two of the dimming areas differ in light transmittance from each other, the controller increases output gradation values of target pixels, the target pixels being located in a predetermined area extending from a boundary between the two dimming areas in one of the two dimming areas that has lower light transmittance.

4. 发明申请

US20160260395A1 DISPLAY DEVICE, ELECTRONIC APPARATUS, AND METHOD FOR DRIVING DISPLAY DEVICE 审中-公开
标题翻译：显示装置，电子装置和驱动显示装置的方法
公开(公告)号：US20160260395A1
公开(公告)日：2016-09-08
申请号：US15016341
申请日：2016-02-05
申请人： Japan Display Inc.
发明人： Kazuhiko SAKO , Naoyuki Takasaki , Tsutomu Harada
IPC分类号： G09G3/36
CPC分类号： G09G3/3607 , G09G3/3426 , G09G3/3648 , G09G2300/0443 , G09G2300/0452 , G09G2320/0242 , G09G2320/0646 , G09G2320/0666 , G09G2330/021 , G09G2360/148 , G09G2360/16
摘要： A display device includes an image display panel, a light source unit, and a signal processing unit. The tentative expansion coefficient calculating unit calculates a tentative expansion coefficient. The tentative index value calculating unit calculates a tentative index value serving as an index of the irradiation amount of light based on the tentative expansion coefficient. The low-saturation pixel detecting unit detects low-saturation pixels in a certain region on an image display surface. The light irradiation amount calculating unit calculates a comparative light irradiation amount based on a detection by the low-saturation pixel detecting unit, a display quality maintenance reference value at which the display quality of colors displayed by the low-saturation pixels is maintained, and an index value calculated based on the tentative index value and calculates, based on the comparative light irradiation amount, a light irradiation amount serving as the irradiation amount of light.
摘要翻译：显示装置包括图像显示面板，光源单元和信号处理单元。暂定膨胀系数计算单元计算暂定膨胀系数。临时指标值计算单元基于暂时膨胀系数计算用作光照射量的指标的暂定指数值。低饱和度像素检测单元检测图像显示面上某一区域的低饱和度像素。光照射量计算单元基于低饱和度像素检测单元的检测来计算比较光照射量，维持由低饱和度像素显示的颜色的显示质量的显示质量维持基准值，以及基于试验性指标值计算出的指标值，并且基于比较光照射量计算用作光照射量的光照射量。

5. 发明公开

US20230274711A1 ELECTRONIC DEVICE 审中-公开
公开(公告)号：US20230274711A1
公开(公告)日：2023-08-31
申请号：US18173082
申请日：2023-02-23
申请人： Japan Display Inc.
发明人： Kentaro OKUYAMA , Kazuhiko SAKO , Tsutomu HARADA , Takayuki NAKANISHI , Kazunari TOMIZAWA
IPC分类号： G09G3/34 , H04N23/60 , G09G3/36 , G02F1/1337 , G02F1/1334
CPC分类号： G09G3/3413 , H04N23/60 , G09G3/36 , G02F1/133738 , G02F1/13347 , G09G2320/064
摘要： According to one embodiment, an electronic device includes a display panel configured to display an image and including a display region that transmits external light, a light source unit, a camera opposed to the display region of the display panel, and a control unit. The control unit is configured to in a light emission period, permit irradiation of light by the light source unit, irradiate the display region with light, display the image in the display region, and prohibit capturing by the camera. The control unit is configured to in a capturing period, prohibit the irradiation of the light by the light source unit, set the display region to be transparent, permit the capturing by the camera, and take in the external light transmitted through the display region to the camera.

6. 发明申请

US20180231836A1 DISPLAY DEVICE AND DIMMING DEVICE 审中-公开
公开(公告)号：US20180231836A1
公开(公告)日：2018-08-16
申请号：US15892001
申请日：2018-02-08
申请人： Japan Display Inc.
发明人： Daichi SUZUKI , Kazuhiko SAKO
IPC分类号： G02F1/1335 , G02F1/1343 , H05B33/08 , G09G3/36
摘要： According to an aspect, a display device includes: a display panel including a display area with pixels; a backlight; and a dimmer. The dimmer includes a dimming panel including a dimming area overlapping the display area and a control circuit. The dimming area includes a plurality of regions each including a first electrode and a second electrode. The control circuit includes a shift register configured to receive an electrical signal for controlling a potential of each of the first electrodes and including a plurality of sequential circuits coupled in series, a holding circuit to which an output of each of the sequential circuits is coupled, and a gradation voltage setter to which an output of the holding circuit is coupled. Each of the first electrodes is coupled to an output of the gradation voltage setter.

7. 发明申请

US20180204523A1 DISPLAY DEVICE, METHOD OF DRIVING DISPLAY DEVICE, AND METHOD OF INSPECTING DISPLAY DEVICE 审中-公开
公开(公告)号：US20180204523A1
公开(公告)日：2018-07-19
申请号：US15841395
申请日：2017-12-14
申请人： Japan Display Inc.
发明人： Tsutomu HARADA , Kazuhiko SAKO
IPC分类号： G09G3/34 , G09G3/36 , G09G3/00
CPC分类号： G09G3/342 , G09G3/006 , G09G3/36 , G09G3/3648 , G09G2310/08 , G09G2320/0233 , G09G2320/0646 , G09G2320/0693
摘要： According to one embodiment, a display device includes an illumination device includes a first illumination portion and a second illumination portion, a display panel includes a first display portion illuminated by the first illumination portion, and a second display portion illuminated by the second illumination portion, and a controller which controls the illumination device and the display panel, wherein the first display portion includes a first sub-display portion, and a second sub-display portion adjacent to the second display portion, and the controller controls a modulation rate of the second sub-display portion of the first display portion, based on an amount of displacement between the illumination device and the display panel.

8. 发明申请

US20160293087A1 DISPLAY DEVICE AND DISPLAY DEVICE DRIVE METHOD 有权
标题翻译：显示设备和显示设备驱动方法
公开(公告)号：US20160293087A1
公开(公告)日：2016-10-06
申请号：US15041569
申请日：2016-02-11
申请人： Japan Display Inc.
发明人： Kazuhiko SAKO , Tsutomu HARADA , Naoyuki TAKASAKI
IPC分类号： G09G3/20
CPC分类号： G09G3/342 , G09G2320/0626 , G09G2360/16
摘要： A display device includes an image display panel, a backlight with independently driven light sources for lighting the image display panel, a backlight control section which calculates, on the basis of required luminance for each divided area based on an image signal and luminance distribution information for the backlight, tentative lighting levels of the light sources, selects the light sources in calculation order, calculates estimated luminance of a selected light source on the basis of the calculated tentative lighting levels or the calculated lighting level of an already selected light source and the luminance distribution information, and calculates, if the estimated luminance does not satisfy the required luminance, a lighting level of the selected light source that satisfies the required luminance on the basis of the tentative lighting level thereof and the luminance distribution information, and a calculation order change section which changes the calculation order at determined timing.
摘要翻译：显示装置包括：图像显示面板，具有用于点亮图像显示面板的独立驱动的光源的背光;背光控制部，其基于图像信号的每个分割区域的所需亮度和基于图像信号的亮度分布信息，背光源，光源的暂定照明级别，以计算顺序选择光源，基于计算出的暂定照明电平或计算出的已选择光源的亮度，计算所选光源的估计亮度，亮度并且如果估计亮度不满足所需亮度，则根据其暂定点亮电平和亮度分布信息来计算满足所需亮度的所选择的光源的点亮电平和计算顺序变化改变确定的计算顺序的部分定时

9. 发明申请

US20150279285A1 DISPLAY DEVICE AND DISPLAY DEVICE DRIVE METHOD 审中-公开
标题翻译：显示设备和显示设备驱动方法
公开(公告)号：US20150279285A1
公开(公告)日：2015-10-01
申请号：US14667981
申请日：2015-03-25
申请人： Japan Display Inc.
发明人： Kazuhiko SAKO , Tsutomu HARADA
IPC分类号： G09G3/34 , G09G3/36
CPC分类号： G09G3/3607 , G09G3/3406 , G09G3/3611 , G09G5/003 , G09G5/006 , G09G2310/08 , G09G2320/0626 , G09G2330/021 , G09G2360/145 , G09G2370/08
摘要： A display device includes an image display panel on which pixels are arranged, a backlight which lights the image display panel from a rear of the image display panel, a first device which controls the backlight, and a second device which controls the image display panel. The first device generates an image signal, outputs the image signal to the second device, determines a light source lighting amount of the backlight on the basis of the image signal by blocks obtained by dividing a display surface of the image display panel and luminance distribution information on the backlight stored in advance, and controls the backlight by the light source lighting amount. The second device acquires the image signal, converts the image signal to a display signal for controlling display of the image display panel, and controls the image display panel.
摘要翻译：显示装置包括其上布置有像素的图像显示面板，从图像显示面板的后部点亮图像显示面板的背光，控制背光的第一设备和控制图像显示面板的第二设备。第一装置产生图像信号，将图像信号输出到第二装置，基于通过划分图像显示面板的显示面和亮度分布信息而获得的图像信号来确定背光源的光源照明量在预先存储的背光上，并且通过光源照射量控制背光。第二装置获取图像信号，将图像信号转换为用于控制图像显示面板的显示的显示信号，并控制图像显示面板。

10. 发明公开

US20240078965A1 DISPLAY DEVICE 审中-公开
公开(公告)号：US20240078965A1
公开(公告)日：2024-03-07
申请号：US18241575
申请日：2023-09-01
申请人： Japan Display Inc.
发明人： Kazunari TOMIZAWA , Kazuhiko SAKO , Tsutomu HARADA
IPC分类号： G09G3/32
CPC分类号： G09G3/32 , G09G2300/0842 , G09G2310/08 , G09G2320/0233 , G09G2320/0626 , G09G2320/0673
摘要： A display device includes a plurality of light-emitting elements, and a control circuit configured to control drive of the light-emitting elements. The control circuit divides one frame period into a plurality of subframe periods having different lengths and controls light emission and non-emission of the light-emitting elements for each of the subframe periods.

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