公开(公告)号：US09111483B2

公开(公告)日：2015-08-18

申请号：US13718402

申请日：2012-12-18

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiroyuki Miyake ,  Kouhei Toyotaka ,  Kazunori Watanabe ,  Toru Tanabe ,  Makoto Kaneyasu ,  Masashi Fujita

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2370/08

Abstract: To provide a display device with high image quality and fewer terminals. The present invention is made with a focus on the positional relation between a serial-parallel conversion circuit and an external connection terminal for supplying a serial signal to the serial-parallel conversion circuit. The structure conceived is such that a serial-parallel conversion circuit and an external connection terminal for supplying a serial signal to the serial-parallel conversion circuit are provided close to each other so that an RC load between the serial-parallel conversion circuit and the external connection terminal is reduced.

Abstract translation: 提供具有高图像质量和较少终端的显示设备。 本发明的重点是串行并行转换电路和用于向串行 - 并行转换电路提供串行信号的外部连接端子之间的位置关系。 所构想的结构使得串行并行转换电路和用于向串行 - 并行转换电路提供串行信号的外部连接端子彼此靠近地设置，使得串行 - 并行转换电路和外部电路之间的RC负载 连接端子减少。

公开(公告)号：US20150137118A1

公开(公告)日：2015-05-21

申请号：US14548365

申请日：2014-11-20

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Atsushi Umezaki ,  Hiroyuki Miyake

IPC: H01L27/12

CPC classification number: H01L27/124 ,  G09G3/2092 ,  G09G3/3266 ,  G09G3/3674 ,  G09G3/3677 ,  G09G2300/0809 ,  G09G2310/0205 ,  G09G2310/0248 ,  G09G2310/0286 ,  G09G2310/0289 ,  G09G2310/0291 ,  G09G2310/061 ,  G09G2320/0646 ,  G09G2320/0666 ,  G11C19/28 ,  H01L27/0207 ,  H01L27/1222 ,  H01L27/1225

Abstract: To suppress fluctuation in the threshold voltage of a transistor, to reduce the number of connections of a display panel and a driver IC, to achieve reduction in power consumption of a display device, and to achieve increase in size and high definition of the display device. A gate electrode of a transistor which easily deteriorates is connected to a wiring to which a high potential is supplied through a first switching transistor and a wiring to which a low potential is supplied through a second switching transistor; a clock signal is input to a gate electrode of the first switching transistor; and an inverted clock signal is input to a gate electrode of the second switching transistor. Thus, the high potential and the low potential are alternately applied to the gate electrode of the transistor which easily deteriorates.

Abstract translation: 为了抑制晶体管的阈值电压的波动，为了减少显示面板和驱动器IC的连接数量，为了实现显示装置的功耗的降低，并且实现显示装置的尺寸和高清晰度的增加 。 容易恶化的晶体管的栅电极通过第一开关晶体管和通过第二开关晶体管供给低电位的布线而连接到提供高电位的布线; 时钟信号被输入到第一开关晶体管的栅电极; 并且反相时钟信号被输入到第二开关晶体管的栅电极。 因此，高电位和低电位交替施加到容易劣化的晶体管的栅电极。

公开(公告)号：US20150016585A1

公开(公告)日：2015-01-15

申请号：US14315601

申请日：2014-06-26

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kouhei Toyotaka ,  Jun Koyama ,  Hiroyuki Miyake

IPC: G09G3/36 ,  G11C19/28 ,  H03K3/012 ,  H03K17/687

CPC classification number: H01L27/124 ,  G02F1/1334 ,  G02F1/1337 ,  G02F1/134336 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2201/121 ,  G02F2201/123 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3648 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2300/0426 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/0626 ,  G09G2330/021 ,  G11C19/28 ,  G11C19/287 ,  H01L27/1225 ,  H01L29/7869

Abstract: A semiconductor device includes first and second transistors having the same conductivity type and a circuit. One of a source and a drain of the first transistor is electrically connected to that of the second transistor. First and third potentials are supplied to the circuit through respective wirings. A second potential and a first clock signal are supplied to the others of the sources and the drains of the first and second transistors, respectively. A second clock signal is supplied to the circuit. The third potential is higher than the second potential which is higher than the first potential. A fourth potential is equal to or higher than the third potential. The first clock signal alternates the second and fourth potentials and the second clock signal alternates the first and third potentials. The circuit controls electrical connections between gates of the first and second transistors and the wirings.

Abstract translation: 半导体器件包括具有相同导电类型的第一和第二晶体管和电路。 第一晶体管的源极和漏极之一与第二晶体管的源极和漏极电连接。 第一和第三电位通过各自的布线提供给电路。 第二电位和第一时钟信号分别被提供给第一和第二晶体管的源极和漏极中的其它电极。 第二个时钟信号被提供给电路。 第三电位高于高于第一电位的第二电位。 第四个电位等于或高于第三个电位。 第一时钟信号交替第二和第四电位，第二时钟信号交替第一和第三电位。 该电路控制第一和第二晶体管的栅极与布线之间的电连接。

公开(公告)号：US08922537B2

公开(公告)日：2014-12-30

申请号：US14089025

申请日：2013-11-25

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Jun Koyama ,  Hiroyuki Miyake

IPC: G09G5/00 ,  G09G3/36 ,  G02F1/1345

CPC classification number: G09G3/3618 ,  G02F1/1345 ,  G06F3/0416 ,  G06F3/0421 ,  G06F3/044 ,  G09G3/3648 ,  G09G3/3655 ,  G09G3/3696 ,  G09G2300/0809 ,  G09G2310/04 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/0209 ,  G09G2320/0219 ,  G09G2320/10 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2340/0435 ,  G09G2340/16 ,  G09G2354/00

Abstract: The liquid crystal display device includes a first substrate provided with a terminal portion, a switching transistor, a driver circuit portion, and a pixel circuit portion including a pixel transistor and a plurality of pixels, a second substrate provided with a common electrode electrically connected to the terminal portion through the switching transistor, and liquid crystal between a pixel electrode and the common electrode. In a period during which a still image is switched to a moving image, the following steps are sequentially performed: a first step of supplying the common potential to the common electrode; a second step of supplying a power supply voltage to the driver circuit portion; a third step of supplying a clock signal to the driver circuit portion; and a fourth step of supplying a start pulse signal to the driver circuit portion.

Abstract translation: 液晶显示装置包括具有端子部分的第一基板，开关晶体管，驱动电路部分和包括像素晶体管和多个像素的像素电路部分，第二基板设置有电连接到 通过开关晶体管的端子部分和像素电极与公共电极之间的液晶。 在将静止图像切换为运动图像的期间中，依次执行以下步骤：将公共电位提供给公共电极的第一步骤; 向驱动电路部供给电源电压的第2工序; 向所述驱动电路部提供时钟信号的第三步骤; 以及向所述驱动器电路部分提供起始脉冲信号的第四步骤。

公开(公告)号：US20140204073A1

公开(公告)日：2014-07-24

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: 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.

Abstract translation: 提供一种液晶显示装置，其具有包括晶体管和液晶元件的像素，以及通过数据线电连接到晶体管的源极和漏极之一的保护电路。 保护电路包括提供有第一电源电位的第一端子和被提供有高于第一电源电位的第二电源电位的第二端子。 在运动图像显示模式中，图像信号通过晶体管从数据线输入到液晶元件，并且第一电源电位被设置为第一电位。 在静止图像显示模式下，停止图像信号的供给，将第一电源电位设定为第二电位。 第二电位与图像信号的最小值基本相同。

公开(公告)号：US20140118378A1

公开(公告)日：2014-05-01

申请号：US14064306

申请日：2013-10-28

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Jun Koyama ,  Yuji Iwaki ,  Hiroyuki Miyake ,  Toru Tanabe

IPC: G09G5/393

CPC classification number: G09G5/00 ,  G09G3/3648 ,  G09G5/36 ,  G09G2320/0247 ,  G09G2320/0613 ,  G09G2320/103 ,  G09G2340/0428 ,  G09G2340/0435 ,  G09G2340/14 ,  G09G2360/16

Abstract: A novel method for driving a display device in which generation of flickers caused by rewriting pixels is reduced and which has a high aperture ratio is provided. The driving method includes a first step of determining whether displayed still image data is two-valued still image data or multivalued still image data, and a second step of performing display by rewriting (refreshing) the two-valued still image data with lower frequency than the multivalued still image data.

Abstract translation: 提供了一种用于驱动显示装置的新颖方法，其中由重写像素引起的闪烁的产生被减少并且具有高的开口率。 驱动方法包括：确定显示的静止图像数据是否是二值静止图像数据还是多值静止图像数据的第一步骤，以及通过重新（刷新）低频率的二值静止图像数据来执行显示的第二步骤 多值静止图像数据。

公开(公告)号：US20140103387A1

公开(公告)日：2014-04-17

申请号：US14136649

申请日：2013-12-20

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiroyuki Miyake ,  Tomoyuki Iwabuchi ,  Ryota Fukumoto

IPC: H01L27/15

CPC classification number: H01L27/156 ,  G09G3/3233 ,  G09G3/3241 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2310/0256 ,  G09G2320/02 ,  G09G2320/0238 ,  H01L27/3244 ,  H01L27/3248 ,  H01L27/3265

Abstract: A problem in that a light emitting element slightly emits light is solved by an off current of a thin film transistor connected in series to the light emitting element, thereby a display device which can perform a clear display by increasing contrast, and a driving method thereof are provided. When the thin film transistor connected in series to the light emitting element is turned off, a charge held in the capacitance of the light emitting element itself is discharged. Even when an off current is generated at the thin film transistor connected in series to the light emitting element, this off current charges this capacitance until the capacitance of the light emitting element itself holds a predetermined voltage again. Accordingly, the off current of the thin film transistor does not contribute to light emission. In this manner, a slight light emission of the light emitting element can be reduced.

Abstract translation: 通过与发光元件串联连接的薄膜晶体管的截止电流来解决发光元件稍微发光的问题，从而可以通过增加对比度进行清晰显示的显示装置及其驱动方法 被提供。 当与发光元件串联连接的薄膜晶体管截止时，放电保持在发光元件本身的电容中的电荷。 即使当在与发光元件串联连接的薄膜晶体管上产生截止电流时，该截止电流对该电容充电，直到发光元件本身的电容再次保持预定电压。 因此，薄膜晶体管的截止电流对发光没有贡献。 以这种方式，可以减少发光元件的轻微发光。

公开(公告)号：US20140070209A1

公开(公告)日：2014-03-13

申请号：US14023295

申请日：2013-09-10

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Hiroyuki Miyake ,  Hideaki Shishido ,  Jun Koyama

IPC: H01L27/12

CPC classification number: H01L27/1225 ,  H01L27/1255 ,  H01L29/7869

Abstract: A semiconductor device including a capacitor whose charge capacity is increased while improving the aperture ratio is provided. Further, a semiconductor device which consumes less power is provided. A transistor which includes a light-transmitting semiconductor film, a capacitor in which a dielectric film is provided between a pair of electrodes, an insulating film which is provided over the light-transmitting semiconductor film, and a first light-transmitting conductive film which is provided over the insulating film are included. The capacitor includes the first light-transmitting conductive film which serves as one electrode, the insulating film which functions as a dielectric, and a second light-transmitting conductive film which faces the first light-transmitting conductive film with the insulating film positioned therebetween and functions as the other electrode. The second light-transmitting conductive film is formed over the same surface as the light-transmitting semiconductor film of the transistor and is a metal oxide film containing a dopant.

Abstract translation: 提供一种半导体装置，其包括在提高开口率的同时增加充电容量的电容器。 此外，提供消耗更少功率的半导体器件。 一种晶体管，其包括透光半导体膜，在一对电极之间设置有电介质膜的电容器，设置在所述透光半导体膜上的绝缘膜和第一透光性导电膜， 包括在绝缘膜上。 电容器包括用作一个电极的第一透光导电膜，用作电介质的绝缘膜和面向第一透光导电膜的第二透光导电膜，绝缘膜位于其间并具有功能 作为另一个电极。 第二透光导电膜形成在与晶体管的透光半导体膜相同的表面上，并且是含有掺杂剂的金属氧化物膜。

公开(公告)号：US20140034954A1

公开(公告)日：2014-02-06

申请号：US13957819

申请日：2013-08-02

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Hiroyuki Miyake ,  Hideaki Shishido ,  Jun Koyama ,  Daisuke Matsubayashi ,  Keisuke Murayama

IPC: H01L27/12

CPC classification number: H01L27/1255 ,  G02F1/1339 ,  G02F1/134363 ,  G02F1/13454 ,  G02F1/13458 ,  G02F1/136204 ,  G02F1/136209 ,  G02F1/136213 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/134372 ,  G02F2201/121 ,  G02F2201/123 ,  G02F2201/40 ,  H01L27/1225 ,  H01L27/124 ,  H01L27/3265 ,  H01L29/7869

Abstract: To provide a semiconductor device including a capacitor whose charge capacity is increased without reducing the aperture ratio. The semiconductor device includes a transistor including a light-transmitting semiconductor film, a capacitor where a dielectric film is provided between a pair of electrodes, an insulating film provided over the light-transmitting semiconductor film, and a light-transmitting conductive film provided over the insulating film. In the capacitor, a metal oxide film containing at least indium (In) or zinc (Zn) and formed on the same surface as the light-transmitting semiconductor film in the transistor serves as one electrode, the light-transmitting conductive film serves as the other electrode, and the insulating film provided over the light-transmitting semiconductor film serves as the dielectric film.

Abstract translation: 提供一种包括电容器的半导体器件，其电容量增加而不降低开口率。 半导体器件包括：晶体管，包括透光半导体膜，电容器，其中电介质膜设置在一对电极之间;绝缘膜设置在透光半导体膜上;以及透光导电膜， 绝缘膜。 在电容器中，与晶体管中的透光性半导体膜相同的表面上形成至少含有铟（In）或锌（Zn）的金属氧化物膜作为一个电极，透光性导电膜作为 设置在透光半导体膜上的绝缘膜用作电介质膜。

公开(公告)号：US20140022155A1

公开(公告)日：2014-01-23

申请号：US14038823

申请日：2013-09-27

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiroyuki Miyake

IPC: G09G3/36

CPC classification number: G09G3/3674 ,  G09G3/3614 ,  G09G3/3688 ,  G09G2310/0235

Abstract: A display device includes a pixel portion to which a non-inverted video signal is input in a first period and an inverted video signal is input in a second period, and a signal line driver circuit comprising a switch circuit portion for controlling output of the non-inverted video signal and the inverted video signal to the pixel portion. The switch circuit portion is controlled by a first signal serving as a first high power supply potential and a first low power supply potential in the first period and is controlled by a second signal serving as a second high power supply potential and a second low power supply potential in the second period, so that the switch circuit portion controls output of the non-inverted video signal and the inverted video signal to the pixel portion.

Abstract translation: 显示装置包括在第一时段中输入非反转视频信号的像素部分和在第二周期中输入反相视频信号的信号线驱动器电路，以及包括用于控制非反相视频信号的输出的开关电路部分的信号线驱动器电路， 反相视频信号和反相视频信号输出到像素部分。 开关电路部分由在第一时段中用作第一高电源电位和第一低电源电位的第一信号控制，并由用作第二高电源电位的第二信号和第二低电源 使得开关电路部分将非反相视频信号和反相视频信号的输出控制到像素部分。