公开(公告)号：US10411158B2

公开(公告)日：2019-09-10

申请号：US15131119

申请日：2016-04-18

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Ryo Arasawa ,  Hideaki Shishido

IPC: H01L27/12 ,  H01L33/16

Abstract: An object is to provide a light-emitting display device in which a pixel including a thin film transistor using an oxide semiconductor has a high aperture ratio. The light-emitting display device includes a plurality of pixels each including a thin film transistor and a light-emitting element. The pixel is electrically connected to a first wiring functioning as a scan line. The thin film transistor includes an oxide semiconductor layer over the first wiring with a gate insulating film therebetween. The oxide semiconductor layer is extended beyond the edge of a region where the first wiring is provided. The light-emitting element and the oxide semiconductor layer overlap with each other.

公开(公告)号：US09368082B2

公开(公告)日：2016-06-14

申请号：US14477172

申请日：2014-09-04

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Ryo Arasawa ,  Jun Koyama ,  Masashi Tsubuku ,  Kosei Noda

IPC: G09G3/36 ,  H01L27/12 ,  H01L29/786

CPC classification number: G09G3/3614 ,  G02F1/133553 ,  G02F1/13439 ,  G02F1/1368 ,  G02F2201/123 ,  G02F2202/10 ,  G09G3/3648 ,  G09G3/3677 ,  G09G2300/08 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2330/021 ,  H01L21/02164 ,  H01L21/02266 ,  H01L21/02565 ,  H01L21/02631 ,  H01L21/467 ,  H01L21/477 ,  H01L27/1225 ,  H01L27/1255 ,  H01L29/24 ,  H01L29/42356 ,  H01L29/45 ,  H01L29/66969 ,  H01L29/78648 ,  H01L29/7869

Abstract: In a liquid crystal display device including a plurality of pixels in a display portion and configured to performed display in a plurality of frame periods, each of the frame periods includes a writing period and a holding period, and after an image signal is input to each of the plurality of pixels in the writing period, a transistor included in each of the plurality of pixels is turned off and the image signal is held for at least 30 seconds in the holding period. The pixel includes a semiconductor layer including an oxide semiconductor layer, and the oxide semiconductor layer has a carrier concentration of less than 1×1014/cm3.

Abstract translation: 在包括显示部分中的多个像素并且被配置为在多个帧周期中进行显示的液晶显示装置中，每个帧周期包括写入周期和保持周期，并且在将图像信号输入到每个 在所述写入周期中的所述多个像素中，包括在所述多个像素中的每一个中的晶体管被​​截止，并且所述图像信号在所述保持周期中保持至少30秒。 像素包括具有氧化物半导体层的半导体层，氧化物半导体层的载流子浓度小于1×10 14 / cm 3。

公开(公告)号：US09318654B2

公开(公告)日：2016-04-19

申请号：US13936355

申请日：2013-07-08

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Ryo Arasawa ,  Hideaki Shishido

IPC: H01L29/04 ,  H01L33/16 ,  H01L27/12

CPC classification number: H01L27/124 ,  H01L27/1225 ,  H01L33/16

Abstract: An object is to provide a light-emitting display device in which a pixel including a thin film transistor using an oxide semiconductor has a high aperture ratio. The light-emitting display device includes a plurality of pixels each including a thin film transistor and a light-emitting element. The pixel is electrically connected to a first wiring functioning as a scan line. The thin film transistor includes an oxide semiconductor layer over the first wiring with a gate insulating film therebetween. The oxide semiconductor layer is extended beyond the edge of a region where the first wiring is provided. The light-emitting element and the oxide semiconductor layer overlap with each other.

公开(公告)号：US09105256B2

公开(公告)日：2015-08-11

申请号：US14244218

申请日：2014-04-03

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Ryo Arasawa ,  Kouhei Toyotaka

IPC: G09G3/36 ,  H01L27/12

CPC classification number: G09G3/3696 ,  G09G3/3614 ,  G09G2320/0247 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2340/16 ,  H01L27/1225

Abstract: Disclosed is a liquid crystal display device and a driving method thereof for displaying an image, in which the polarity of a voltage applied to the liquid crystal element is inverted in a first frame period and a second frame period which are sequential. The voltage applied to the liquid crystal element is compensated in the case where images of the first frame period and the second frame period are judged as a still image as a result of comparison of the image of the first frame period with the image of the second frame period and the absolute value of the voltage applied to the liquid crystal element in the first frame period is different from that of the voltage applied to the liquid crystal element in the second frame period.

Abstract translation: 公开了一种用于显示图像的液晶显示装置及其驱动方法，其中施加到液晶元件的电压的极性在顺序的第一帧周期和第二帧周期中反转。 作为第一帧周期的图像与第二帧周期的图像的比较的结果，在第一帧周期和第二帧周期的图像被判断为静止图像的情况下，施加到液晶元件的电压被补偿 并且在第一帧周期中施加到液晶元件的电压的绝对值与在第二帧周期中施加到液晶元件的电压的绝对值不同。

公开(公告)号：US08890859B2

公开(公告)日：2014-11-18

申请号：US14219275

申请日：2014-03-19

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kouhei Toyotaka ,  Hiroyuki Miyake ,  Ryo Arasawa ,  Koji Kusunoki ,  Tsutomu Murakawa

IPC: G06F3/038 ,  G09G3/36

CPC classification number: G09G3/3648 ,  G09G3/20 ,  G09G3/36 ,  G09G3/3688 ,  G09G2320/103 ,  G09G2330/04

Abstract: Provided is a liquid crystal display device having a pixel including a transistor and a liquid crystal element and a protection circuit electrically connected to one of a source and a drain of the transistor through a data line. The protection circuit includes a first terminal supplied with a first power supply potential and a second terminal supplied with a second power supply potential higher than the first power supply potential. In a moving image display mode, an image signal is input from the data line to the liquid crystal element through the transistor, and the first power supply potential is set at the first potential. In a still image display mode, supply of the image signal is stopped, and the first power supply potential is set at the second potential. The second potential is substantially the same as the minimum value of the image signal.

公开(公告)号：US20130292679A1

公开(公告)日：2013-11-07

申请号：US13936355

申请日：2013-07-08

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Ryo Arasawa ,  Hideaki Shishido

IPC: H01L33/16

CPC classification number: H01L27/124 ,  H01L27/1225 ,  H01L33/16

Abstract: An object is to provide a light-emitting display device in which a pixel including a thin film transistor using an oxide semiconductor has a high aperture ratio. The light-emitting display device includes a plurality of pixels each including a thin film transistor and a light-emitting element. The pixel is electrically connected to a first wiring functioning as a scan line. The thin film transistor includes an oxide semiconductor layer over the first wiring with a gate insulating film therebetween. The oxide semiconductor layer is extended beyond the edge of a region where the first wiring is provided. The light-emitting element and the oxide semiconductor layer overlap with each other.

Abstract translation: 本发明的目的是提供一种发光显示装置，其中包括使用氧化物半导体的薄膜晶体管的像素具有高开口率。 发光显示装置包括多个像素，每个像素包括薄膜晶体管和发光元件。 像素电连接到用作扫描线的第一布线。 薄膜晶体管包括在第一布线之间的氧化物半导体层，其间具有栅极绝缘膜。 氧化物半导体层延伸超过设置有第一布线的区域的边缘。 发光元件和氧化物半导体层彼此重叠。