公开(公告)号：US20140139568A1

公开(公告)日：2014-05-22

申请号：US14163451

申请日：2014-01-24

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yasunori YOSHIDA ,  Hajime KIMURA

IPC: G09G3/36

CPC classification number: G09G3/3413 ,  G02F1/13306 ,  G09G3/20 ,  G09G3/2018 ,  G09G3/2022 ,  G09G3/2074 ,  G09G3/2081 ,  G09G3/22 ,  G09G3/3258 ,  G09G3/3406 ,  G09G3/342 ,  G09G3/3607 ,  G09G3/3648 ,  G09G3/3659 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2300/0465 ,  G09G2300/0809 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0876 ,  G09G2300/088 ,  G09G2310/0235 ,  G09G2310/0237 ,  G09G2310/024 ,  G09G2310/0251 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0247 ,  G09G2320/0252 ,  G09G2320/0257 ,  G09G2320/0261 ,  G09G2320/028 ,  G09G2320/041 ,  G09G2320/043 ,  G09G2320/0613 ,  G09G2320/0646 ,  G09G2320/106 ,  G09G2330/021 ,  G09G2340/16 ,  G09G2360/144 ,  G09G2360/16 ,  H04M1/0214 ,  H04M1/0266 ,  H04M2250/16 ,  H04W52/0251

Abstract: To provide a hold-type display device without a problem of motion blur and a driving method thereof. The length of a period for displaying a blanking image in one frame period is controlled in accordance with a control parameter showing the degree of motion blur, and the level of a signal supplied to a display element is changed in accordance with the length of the period for displaying the blanking image. Accordingly, the hold-type display device without a problem of motion blur and the driving method thereof can be provided.

Abstract translation: 提供一种没有运动模糊问题的保持型显示装置及其驱动方法。 根据表示运动模糊度的控制参数来控制用于在一个帧周期中显示消隐图像的周期的长度，并且根据周期的长度来改变提供给显示元件的信号的电平 用于显示消隐图像。 因此，可以提供没有运动模糊问题的保持型显示装置及其驱动方法。

公开(公告)号：US20170365226A1

公开(公告)日：2017-12-21

申请号：US15673664

申请日：2017-08-10

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hajime KIMURA ,  Yasunori YOSHIDA ,  Hideaki SHISHIDO ,  Atsushi UMEZAKI ,  Makoto YANAGISAWA ,  Shunpei YAMAZAKI

IPC: G09G3/36 ,  G09G3/34 ,  G02F1/1335 ,  G09G3/3208 ,  G02F1/1362

CPC classification number: G09G3/36 ,  G02F1/133603 ,  G02F1/1362 ,  G09G3/3208 ,  G09G3/3426 ,  G09G3/3648 ,  G09G2300/046 ,  G09G2320/0238 ,  G09G2320/062 ,  G09G2320/066 ,  G09G2330/021

Abstract: It is an object to provide a display device in which a problem of light leakage from a liquid crystal element in black display is reduced or overcome and the contrast is improved. It is another object to provide a pixel circuit having a function to control a lighting state of a backlight based on each pixel. These objects are achieved by turning off a light-emitting element in display of a black gray scale, and by providing a light-emitting element in each pixel and providing, in a pixel circuit, a function to individually control lighting and non-lighting of the light-emitting element depending on a gray scale to perform display. When a backlight is provided in each pixel, a light-emitting element that is a backlight is turned off when a black gray scale is displayed, whereby reduction in contrast due to light leakage from a liquid crystal element can be prevented.

公开(公告)号：US20160012783A1

公开(公告)日：2016-01-14

申请号：US14863500

申请日：2015-09-24

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hajime KIMURA ,  Yasunori YOSHIDA ,  Hideaki SHISHIDO ,  Atsushi UMEZAKI ,  Makoto YANAGISAWA ,  Shunpei YAMAZAKI

IPC: G09G3/36

CPC classification number: G09G3/36 ,  G02F1/133603 ,  G02F1/1362 ,  G09G3/3208 ,  G09G3/3426 ,  G09G3/3648 ,  G09G2300/046 ,  G09G2320/0238 ,  G09G2320/062 ,  G09G2320/066 ,  G09G2330/021

Abstract: It is an object to provide a display device in which a problem of light leakage from a liquid crystal element in black display is reduced or overcome and the contrast is improved. It is another object to provide a pixel circuit having a function to control a lighting state of a backlight based on each pixel. These objects are achieved by turning off a light-emitting element in display of a black gray scale, and by providing a light-emitting element in each pixel and providing, in a pixel circuit, a function to individually control lighting and non-lighting of the light-emitting element depending on a gray scale to perform display. When a backlight is provided in each pixel, a light-emitting element that is a backlight is turned off when a black gray scale is displayed, whereby reduction in contrast due to light leakage from a liquid crystal element can be prevented.

Abstract translation: 本发明的目的是提供一种显示装置，其中减少或克服了黑色显示器中的液晶元件的漏光问题，并提高了对比度。 另一个目的是提供一种具有基于每个像素来控制背光的点亮状态的功能的像素电路。 这些目的是通过关闭黑色灰度显示器中的发光元件来实现的，并且通过在每个像素中提供发光元件并在像素电路中提供单独控制照明和非点亮的功能 该发光元件根据灰度来执行显示。 当在每个像素中设置背光时，当显示黑色灰度时，作为背光的发光元件被关闭，由此可以防止由于来自液晶元件的光泄漏造成的对比度的降低。

公开(公告)号：US20150130857A1

公开(公告)日：2015-05-14

申请号：US14529290

申请日：2014-10-31

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yasunori YOSHIDA ,  Hajime KIMURA

IPC: G09G3/36

CPC classification number: G09G3/36 ,  G09G3/2025 ,  G09G3/3233 ,  G09G3/325 ,  G09G3/3258 ,  G09G3/3406 ,  G09G3/3648 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/024 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/02 ,  G09G2320/0233 ,  G09G2320/0252 ,  G09G2320/0261 ,  G09G2320/0271 ,  G09G2320/0276 ,  G09G2320/0626 ,  G09G2320/0673 ,  G09G2320/10 ,  G09G2320/106 ,  G09G2340/0435 ,  G09G2360/144 ,  G09G2360/16 ,  G09G2360/18 ,  H01L27/1214 ,  H01L27/124 ,  H01L27/1255 ,  H01L29/42384

Abstract: The present invention solves the motion blur of moving images in hold-type display devices. An amount of a moving image is detected from image data included in frames and an image at the intermediate state between an image of the current frame and an image of the next frame is made as an interpolation image. Thus, the movement of the image can follow the movement of human eyes and the luminance of the interpolation image is changed, and thus, display can be made close to pseudo impulse type display. In this manner, hold-type display devices without motion blur and methods of driving the hold-type display devices can be provided.

Abstract translation: 本发明解决了保持型显示装置中运动图像的运动模糊。 从包括在帧中的图像数据检测运动图像的量，并且将当前帧的图像与下一帧的图像之间的中间状态的图像做成内插图像。 因此，图像的移动可以跟随人眼的移动，并且内插图像的亮度改变，从而可以使显示更接近伪脉冲型显示。 以这种方式，可以提供没有运动模糊的保持型显示装置和驱动保持型显示装置的方法。

公开(公告)号：US20130341627A1

公开(公告)日：2013-12-26

申请号：US13971144

申请日：2013-08-20

Applicant: Semiconductor Energy Laboratory Co., Ltd

Inventor： Yasunori YOSHIDA ,  Hajime KIMURA ,  Shinji MAEKAWA ,  Osamu NAKAMURA ,  Shunpei YAMAZAKI

IPC: H01L27/15

CPC classification number: H01L27/156 ,  H01L21/288 ,  H01L21/76838 ,  H01L27/1285 ,  H01L27/1292 ,  H01L27/3248 ,  H01L27/3276

Abstract: The invention provides an active matrix EL display device which can perform a clear multi-gray scale color display. In particular, the invention provides a large active matrix EL display device at low cost by a manufacturing method which can selectively form a pattern. Power supply lines in a pixel portion are arranged in matrix by the manufacturing method which can selectively form a pattern. Further, capacitance between wirings is reduced by providing a longer distance between adjacent wirings by the manufacturing method which can selectively form a pattern.

Abstract translation: 本发明提供一种能够执行清晰的多灰阶彩色显示的有源矩阵EL显示装置。 特别地，本发明通过可以选择性地形成图案的制造方法以低成本提供大的有源矩阵EL显示装置。 通过可以选择性地形成图案的制造方法将像素部分中的电源线布置成矩阵。 此外，通过可以选择性地形成图案的制造方法，通过在相邻布线之间提供更长的距离来减小布线之间的电容。