公开(公告)号：US20150213843A1

公开(公告)日：2015-07-30

申请号：US14679103

申请日：2015-04-06

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Jun KOYAMA ,  Shunpei YAMAZAKI

IPC: G11C5/10 ,  G11C7/12

CPC classification number: G11C5/10 ,  G11C7/12 ,  G11C7/18 ,  G11C11/4085 ,  G11C11/4094 ,  G11C11/4097 ,  H01L27/0207 ,  H01L27/0688 ,  H01L27/10805 ,  H01L27/10873 ,  H01L27/10885 ,  H01L27/10897 ,  H01L27/1207 ,  H01L27/1225 ,  H01L29/7869

Abstract: An object of one embodiment of the present invention is to propose a memory device in which a period in which data is held is ensured and memory capacity per unit area can be increased. In the memory device of one embodiment of the present invention, bit lines are divided into groups, and word lines are also divided into groups. The word lines assigned to one group are connected to the memory cell connected to the bit lines assigned to the one group. Further, the driving of each group of bit lines is controlled by a dedicated bit line driver circuit of a plurality of bit line driver circuits. In addition, cell arrays are formed on a driver circuit including the above plurality of bit line driver circuits and a word line driver circuit. The driver circuit and the cell arrays overlap each other.

Abstract translation: 本发明的一个实施例的目的是提出一种存储器件，其中确保了保持数据的周期并且可以增加每单位面积的存储器容量。 在本发明的一个实施例的存储器件中，位线被分成组，字线也被分成组。 分配给一个组的字线连接到连接到分配给该组的位线的存储单元。 此外，每组位线的驱动由多位位线驱动电路的专用位线驱动电路控制。 此外，在包括上述多个位线驱动电路的驱动电路和字线驱动电路上形成单元阵列。 驱动器电路和单元阵列彼此重叠。

公开(公告)号：US20150177544A1

公开(公告)日：2015-06-25

申请号：US14632075

申请日：2015-02-26

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Jun KOYAMA ,  Shunpei YAMAZAKI

IPC: G02F1/1368 ,  G02F1/1343 ,  G02F1/137

CPC classification number: G02F1/1368 ,  G02F1/13306 ,  G02F1/133345 ,  G02F1/133512 ,  G02F1/133784 ,  G02F1/1339 ,  G02F1/13394 ,  G02F1/134309 ,  G02F1/134336 ,  G02F1/13439 ,  G02F1/13454 ,  G02F1/1362 ,  G02F1/136286 ,  G02F1/137 ,  G02F2001/133302 ,  G02F2001/133357 ,  G02F2001/133388 ,  G02F2001/133742 ,  G02F2001/13793 ,  G02F2201/121 ,  G02F2201/123

Abstract: When a pixel portion and a driver circuit are formed over one substrate and a counter electrode is formed over an entire surface of a counter substrate, the driver circuit may be adversely affected by an optimized voltage of the counter electrode. A semiconductor device according to the present invention has a structure in which: a liquid crystal layer is provided between a pair of substrates; one of the substrates is provided with a pixel electrode and a driver circuit; the other of the substrates is a counter substrate which is provided with two counter electrode layers in different potentials; and one of the counter electrode layers overlaps with the pixel electrode with the liquid crystal layer therebetween and the other of the counter electrode layers overlaps with the driver circuit with the liquid crystal layer therebetween. An oxide semiconductor layer is used for the driver circuit.

Abstract translation: 当像素部分和驱动电路形成在一个衬底上并且相对电极形成在对向衬底的整个表面上时，驱动电路可能受到对电极的优化电压的不利影响。 根据本发明的半导体器件具有以下结构：在一对基板之间设置液晶层; 其中一个基板设置有像素电极和驱动电路; 另一个基板是相对基板，其具有不同电位的两个对电极层; 相对电极层中的一个与像素电极重叠，液晶层在其间，另一个对电极层与驱动电路重叠，液晶层在其间。 氧化物半导体层用于驱动电路。

公开(公告)号：US20150070254A1

公开(公告)日：2015-03-12

申请号：US14540326

申请日：2014-11-13

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Jun KOYAMA ,  Hiroyuki MIYAKE

IPC: G09G3/32

CPC classification number: G09G3/3208 ,  G09G3/2003 ,  G09G3/3233 ,  G09G2330/021 ,  H01L27/1225 ,  H01L27/3262 ,  H01L27/3276 ,  H01L29/78609 ,  H01L29/7869 ,  H01L29/78693 ,  H01L29/78696

Abstract: Objects are to provide a display device the power consumption of which is reduced, to provide a self-luminous display device the power consumption of which is reduced and which is capable of long-term use in a dark place. A circuit is formed using a thin film transistor in which a highly-purified oxide semiconductor is used and a pixel can keep a certain state (a state in which a video signal has been written). As a result, even in the case of displaying a still image, stable operation is easily performed. In addition, an operation interval of a driver circuit can be extended, which results in a reduction in power consumption of a display device. Moreover, a light-storing material is used in a pixel portion of a self-luminous display device to store light, whereby the display device can be used in a dark place for a long time.

Abstract translation: 目的是提供一种降低功耗的显示装置，以提供其功耗降低并且能够在黑暗处长期使用的自发光显示装置。 使用其中使用高度纯化的氧化物半导体并且像素可以保持一定状态（已经写入视频信号的状态）的薄膜晶体管形成电路。 结果，即使在显示静止图像的情况下，也能够容易地进行稳定的动作。 此外，可以延长驱动电路的操作间隔，这导致显示装置的功耗的降低。 此外，在自发光显示装置的像素部分中使用光存储材料来存储光，由此显示装置可以在黑暗的地方长时间使用。

公开(公告)号：US20150021600A1

公开(公告)日：2015-01-22

申请号：US14507204

申请日：2014-10-06

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Jun KOYAMA ,  Shunpei YAMAZAKI

IPC: H01L27/12

CPC classification number: H01L27/1225 ,  G02F1/133345 ,  G02F1/134309 ,  G02F1/13452 ,  G02F1/13454 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2201/123 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2300/0426 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2330/023 ,  H01L27/124 ,  H01L27/1285 ,  H01L29/045 ,  H01L29/66742 ,  H01L29/66969 ,  H01L29/7869

Abstract: One embodiment of the present invention provides a highly reliably display device in which a high mobility is achieved in an oxide semiconductor. A first oxide component is formed over a base component. Crystal growth proceeds from a surface toward an inside of the first oxide component by a first heat treatment, so that a first oxide crystal component is formed in contact with at least part of the base component. A second oxide component is formed over the first oxide crystal component. Crystal growth is performed by a second heat treatment using the first oxide crystal component as a seed, so that a second oxide crystal component is formed. Thus, a stacked oxide material is formed. A transistor with a high mobility is formed using the stacked oxide material and a driver circuit is formed using the transistor.

Abstract translation: 本发明的一个实施例提供了一种在氧化物半导体中实现高迁移率的高度可靠的显示装置。 第一氧化物组分形成在基底组分上。 晶体生长通过第一次热处理从第一氧化物组分的表面向内部进行，从而形成第一氧化物晶体组分与至少一部分基础组分接触。 在第一氧化物晶体组分上形成第二氧化物组分。 通过使用第一氧化物晶体成分作为种子的第二次热处理进行晶体生长，从而形成第二氧化物晶体成分。 因此，形成堆叠的氧化物材料。 使用层叠的氧化物材料形成具有高迁移率的晶体管，并且使用该晶体管形成驱动电路。

公开(公告)号：US20140368417A1

公开(公告)日：2014-12-18

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：US20140353758A1

公开(公告)日：2014-12-04

申请号：US14459503

申请日：2014-08-14

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Jun KOYAMA ,  Shunpei YAMAZAKI

IPC: G06K19/077 ,  H01L23/528 ,  H01L27/06

CPC classification number: G06K19/07775 ,  G06K19/07722 ,  H01L23/5227 ,  H01L23/528 ,  H01L27/0203 ,  H01L27/0688 ,  H01L27/12 ,  H01L27/1214 ,  H01L27/1225 ,  H01L27/1266 ,  H01L27/1277 ,  H01L27/13 ,  H01L2924/0002 ,  H01L2924/3011 ,  H01L2924/00

Abstract: A semiconductor device, in which an integrated circuit portion and an antenna are easily connected, can surely transmit and receive a signal to and from a communication device. The integrated circuit portion is formed of a thin film transistor over a surface of a substrate so that the area occupied by the integrated circuit portion is increased. The antenna is provided over the integrated circuit portion, and the thin film transistor and the antenna are connected. Further, the area over the substrate occupied by the integrated circuit portion is 0.5 to 1 times as large as the area of the surface of the substrate. Thus, the size of the integrated circuit portion can be close to the desired size of the antenna, so that the integrated circuit portion and the antenna are easily connected and the semiconductor device can surely transmit and receive a signal to and from the communication device.

Abstract translation: 集成电路部分和天线容易连接的半导体器件可以肯定地向通信设备发送信号和从通信设备接收信号。 集成电路部分由衬底的表面上的薄膜晶体管形成，使得由集成电路部分占据的面积增加。 天线设置在集成电路部分上，并且薄膜晶体管和天线被连接。 此外，由集成电路部分占据的衬底上的面积是衬底表面的面积的0.5至1倍。 因此，集成电路部分的尺寸可以接近天线的期望尺寸，使得集成电路部分和天线容易连接，并且半导体器件可以可靠地向通信装置发送信号和从通信装置接收信号。

公开(公告)号：US20140191934A1

公开(公告)日：2014-07-10

申请号：US14153667

申请日：2014-01-13

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Jun KOYAMA ,  Shunpei YAMAZAKI

IPC: G09G3/36

CPC classification number: G09G3/3648 ,  G09G3/32 ,  G09G3/3611 ,  G09G3/3674 ,  G09G3/3688 ,  G09G2300/0408 ,  G09G2310/027 ,  G09G2310/0286 ,  G09G2320/0233 ,  H01L27/1214

Abstract: There are provided a driving circuit of a semiconductor display device which can obtain an excellent picture without picture blur (display unevenness) and with high fineness/high resolution, and the semiconductor display device. A buffer circuit used in the driving circuit of the semiconductor display device is constituted by a plurality of TFTs each having a small channel width, and a plurality of such buffer circuits are connected in parallel with each other.

Abstract translation: 提供了可以获得没有图像模糊（显示不均匀）和高细度/高分辨率的优异图像的半导体显示装置的驱动电路和半导体显示装置。 在半导体显示装置的驱动电路中使用的缓冲电路由具有小沟道宽度的多个TFT构成，并且多个这样的缓冲电路彼此并联连接。

公开(公告)号：US20140185170A1

公开(公告)日：2014-07-03

申请号：US14199377

申请日：2014-03-06

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Jun KOYAMA

IPC: H02H9/04

CPC classification number: H01L27/0266 ,  G09G3/3283 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2300/0426 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/0286 ,  G09G2330/04 ,  G11C19/28 ,  H01L27/1225 ,  H02H9/044 ,  Y10T29/49117 ,  Y10T428/24364 ,  Y10T428/24372 ,  Y10T428/2438

Abstract: Provided are a driver circuit which suppresses damage of a semiconductor element due to ESD in a manufacturing process, a method of manufacturing the driver circuit. Further provided are a driver circuit provided with a protection circuit with low leakage current, and a method of manufacturing the driver circuit. By providing a protection circuit in a driver circuit to be electrically connected to a semiconductor element in the driver circuit, and by forming, at the same time, a transistor which serves as the semiconductor element in the driver circuit and a transistor included in the protection circuit in the driver circuit, damage of the semiconductor element due to ESD is suppressed in the process of manufacturing the driver circuit. Further, by using an oxide semiconductor film for the transistor included in the protection circuit in the driver circuit, leakage current in the protection circuit is reduced.

Abstract translation: 提供了在制造过程中抑制由于ESD导致的半导体元件的损坏的驱动电路，制造驱动电路的方法。 还提供了具有低泄漏电流的保护电路的驱动电路，以及制造该驱动电路的方法。 通过在驱动电路中提供保护电路以电连接到驱动电路中的半导体元件，并且同时形成用作驱动电路中的半导体元件的晶体管和包括在保护中的晶体管 在制造驱动电路的过程中抑制了由于ESD引起的半导体元件的损坏。 此外，通过使用包含在驱动电路中的保护电路中的晶体管的氧化物半导体膜，减小了保护电路中的漏电流。

公开(公告)号：US20140146033A1

公开(公告)日：2014-05-29

申请号：US14086290

申请日：2013-11-21

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Jun KOYAMA ,  Hiroyuki MIYAKE

IPC: G09G5/00 ,  G09G3/36

CPC classification number: G09G3/3655 ,  G09G3/3648 ,  G09G3/3696 ,  G09G2320/041 ,  G09G2320/103 ,  G09G2340/0435

Abstract: To provide a novel display device without deterioration of display quality, the display device includes a display panel including a pixel portion that displays still images at a frame frequency of 30 Hz or less, a temperature sensing unit that senses the temperature of the display panel, a memory device that stores a correction table containing correction data, and a control circuit to which correction data selected from the correction table is input in accordance with an output of the temperature sensing unit. The pixel portion includes a plurality of pixels. Each of the pixels includes a transistor, a display element, and a capacitor. The control circuit outputs a voltage based on the correction data input to the control circuit, to the capacitor included in each of the pixels.

Abstract translation: 为了提供一种不会降低显示质量的新型显示装置，显示装置包括：显示面板，包括以30Hz以下的帧频显示静止图像的像素部，感测显示面板的温度的温度检测部， 存储装置，存储包含校正数据的校正表;以及控制电路，根据温度检测单元的输出，输入从校正表中选择的校正数据。 像素部分包括多个像素。 每个像素包括晶体管，显示元件和电容器。 控制电路基于输入到控制电路的校正数据将电压输出到每个像素中包括的电容器。

公开(公告)号：US20140028659A1

公开(公告)日：2014-01-30

申请号：US13949258

申请日：2013-07-24

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Jun KOYAMA

IPC: G09G3/36

CPC classification number: G09G3/36 ,  G02F1/1368 ,  G09G3/3677 ,  G09G2300/0408 ,  G09G2300/043 ,  G09G2300/0495 ,  G09G2380/02 ,  G11C19/28 ,  H03K17/302 ,  H03K2217/0018

Abstract: A liquid crystal material is prevented from being degraded by a voltage to control the shift of the threshold voltage which is applied to a back gate on the same conductive film as a pixel electrode. A liquid crystal display device includes a pixel circuit including a pixel electrode which applies an electric field to a liquid crystal layer; and a driver circuit including a transistor including a first gate and a second gate with a semiconductor film interposed therebetween. The transistor overlaps with the liquid crystal layer. A signal for controlling on/off of the transistor is input to the first gate. A signal for applying a first voltage is input to the second gate in a gate line selection period. A signal for alternately applying the first voltage and a second voltage is input to the second gate in a vertical retrace period.

Abstract translation: 防止液晶材料被电压降级，以控制施加到与像素电极相同的导电膜上的背栅的阈值电压的偏移。 液晶显示装置包括像素电路，该像素电路包括向液晶层施加电场的像素电极; 以及包括晶体管的驱动器电路，所述晶体管包括第一栅极和第二栅极，半导体膜夹在其间。 晶体管与液晶层重叠。 用于控制晶体管的导通/截止的信号被输入到第一栅极。 用于施加第一电压的信号在栅极线选择周期中被输入到第二栅极。 用于交替施加第一电压和第二电压的信号在垂直回扫期间被输入到第二门。