公开(公告)号：US09165952B2

公开(公告)日：2015-10-20

申请号：US14524040

申请日：2014-10-27

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Mai Akiba ,  Jun Koyama

IPC: H01L27/12 ,  G09G3/32 ,  H01L27/15 ,  H01L27/32 ,  G09G3/20 ,  G09G3/22

CPC classification number: H01L27/3248 ,  G09G3/2018 ,  G09G3/2022 ,  G09G3/22 ,  G09G3/3225 ,  G09G3/3233 ,  G09G3/3241 ,  G09G3/325 ,  G09G3/3258 ,  G09G3/3283 ,  G09G2300/04 ,  G09G2300/0426 ,  G09G2300/0814 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2310/0256 ,  G09G2310/0262 ,  G09G2310/027 ,  G09G2310/0286 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2330/028 ,  G09G2330/04 ,  G09G2330/045 ,  H01L27/12 ,  H01L27/124 ,  H01L27/1255 ,  H01L27/1285 ,  H01L27/13 ,  H01L27/15 ,  H01L27/3244 ,  H01L27/3258 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/3276 ,  H01L27/3279 ,  H01L29/4908 ,  H01L29/66757 ,  H01L33/20 ,  H01L33/32 ,  H01L51/0036 ,  H01L51/0038 ,  H01L51/0039 ,  H01L51/0059 ,  H01L51/0073 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/0087 ,  H01L51/5259 ,  H01L2227/323 ,  H01L2251/308

Abstract: By controlling the luminance of light emitting element not by means of a voltage to be impressed to the TFT but by means of controlling a current that flows to the TFT in a signal line drive circuit, the current that flows to the light emitting element is held to a desired value without depending on the characteristics of the TFT. Further, a voltage of inverted bias is impressed to the light emitting element every predetermined period. Since a multiplier effect is given by the two configurations described above, it is possible to prevent the luminance from deteriorating due to a deterioration of the organic luminescent layer, and further, it is possible to maintain the current that flows to the light emitting element to a desired value without depending on the characteristics of the TFT.

公开(公告)号：US08895983B2

公开(公告)日：2014-11-25

申请号：US13974330

申请日：2013-08-23

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Mai Akiba ,  Jun Koyama

IPC: H01L29/04 ,  H01L27/15 ,  G09G3/32 ,  G09G3/20 ,  G09G3/22

CPC classification number: H01L27/3248 ,  G09G3/2018 ,  G09G3/2022 ,  G09G3/22 ,  G09G3/3225 ,  G09G3/3233 ,  G09G3/3241 ,  G09G3/325 ,  G09G3/3258 ,  G09G3/3283 ,  G09G2300/04 ,  G09G2300/0426 ,  G09G2300/0814 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2310/0256 ,  G09G2310/0262 ,  G09G2310/027 ,  G09G2310/0286 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2330/028 ,  G09G2330/04 ,  G09G2330/045 ,  H01L27/12 ,  H01L27/124 ,  H01L27/1255 ,  H01L27/1285 ,  H01L27/13 ,  H01L27/15 ,  H01L27/3244 ,  H01L27/3258 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/3276 ,  H01L27/3279 ,  H01L29/4908 ,  H01L29/66757 ,  H01L33/20 ,  H01L33/32 ,  H01L51/0036 ,  H01L51/0038 ,  H01L51/0039 ,  H01L51/0059 ,  H01L51/0073 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/0087 ,  H01L51/5259 ,  H01L2227/323 ,  H01L2251/308

Abstract: By controlling the luminance of light emitting element not by means of a voltage to be impressed to the TFT but by means of controlling a current that flows to the TFT in a signal line drive circuit, the current that flows to the light emitting element is held to a desired value without depending on the characteristics of the TFT. Further, a voltage of inverted bias is impressed to the light emitting element every predetermined period. Since a multiplier effect is given by the two configurations described above, it is possible to prevent the luminance from deteriorating due to a deterioration of the organic luminescent layer, and further, it is possible to maintain the current that flows to the light emitting element to a desired value without depending on the characteristics of the TFT.

Abstract translation: 通过控制发光元件的亮度不是通过施加到TFT的电压来控制发光元件的亮度，而是通过控制在信号线驱动电路中流向TFT的电流，保持流向发光元件的电流 达到期望值，而不依赖于TFT的特性。 此外，每隔预定周期向发光元件施加反向偏压的电压。 由于通过上述两种配置给出乘法器效应，因此可以防止由于有机发光层的劣化引起的亮度劣化，并且还可以将流到发光元件的电流保持为 不依赖于TFT的特性的期望值。

公开(公告)号：US10977977B2

公开(公告)日：2021-04-13

申请号：US16516489

申请日：2019-07-19

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Atsushi Umezaki ,  Mai Akiba

IPC: G09G3/20 ,  G11C19/28 ,  G09G3/3225 ,  H01L27/12

Abstract: It is an object to provide a semiconductor display device with high reliability. Further, it is an object to provide a semiconductor display device which can reduce power consumption. A decoder is provided for a scan line driver circuit and operates such that, in accordance with a signal input to the scan line driver circuit, a pulse is sequentially input only to scan lines included in pixels of rows performing display and a pulse is not input to scan lines included in pixels of rows at which display is not performed. Then, all pixels or part of pixels in the line selected by the pulse is supplied with a video signal from a signal line driver circuit, whereby display of an image is performed in pixels arranged in the specific area of the pixel portion.

公开(公告)号：US09899419B2

公开(公告)日：2018-02-20

申请号：US14924100

申请日：2015-10-27

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Atsuo Isobe ,  Shunpei Yamazaki ,  Koji Dairiki ,  Hiroshi Shibata ,  Chiho Kokubo ,  Tatsuya Arao ,  Masahiko Hayakawa ,  Hidekazu Miyairi ,  Akihisa Shimomura ,  Koichiro Tanaka ,  Mai Akiba

IPC: H01L29/786 ,  H01L27/12 ,  H01L21/3213 ,  H01L21/02 ,  B23K26/073 ,  H01L21/20 ,  H01L21/84 ,  H01L29/66

CPC classification number: H01L27/1222 ,  B23K26/0738 ,  H01L21/02354 ,  H01L21/02356 ,  H01L21/02675 ,  H01L21/02683 ,  H01L21/02686 ,  H01L21/02691 ,  H01L21/2026 ,  H01L21/32139 ,  H01L21/84 ,  H01L27/1214 ,  H01L27/1218 ,  H01L27/124 ,  H01L27/1255 ,  H01L27/1274 ,  H01L27/1281 ,  H01L27/1296 ,  H01L29/66757 ,  H01L29/78603 ,  H01L29/78675 ,  H01L29/78696 ,  Y10S118/90 ,  Y10T117/10 ,  Y10T117/1004 ,  Y10T117/1008

Abstract: A semiconductor device production system using a laser crystallization method is provided which can avoid forming grain boundaries in a channel formation region of a TFT, thereby preventing grain boundaries from lowering the mobility of the TFT greatly, from lowering ON current, and from increasing OFF current. Rectangular or stripe pattern depression and projection portions are formed on an insulating film. A semiconductor film is formed on the insulating film. The semiconductor film is irradiated with continuous wave laser light by running the laser light along the stripe pattern depression and projection portions of the insulating film or along the major or minor axis direction of the rectangle. Although continuous wave laser light is most preferred among laser light, it is also possible to use pulse oscillation laser light in irradiating the semiconductor film.

公开(公告)号：US20170047388A1

公开(公告)日：2017-02-16

申请号：US15340074

申请日：2016-11-01

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Mai Akiba ,  Jun Koyama

IPC: H01L27/32 ,  G09G3/3258 ,  H01L27/12 ,  G09G3/3225

CPC classification number: H01L27/3248 ,  G09G3/2018 ,  G09G3/2022 ,  G09G3/22 ,  G09G3/3225 ,  G09G3/3233 ,  G09G3/3241 ,  G09G3/325 ,  G09G3/3258 ,  G09G3/3283 ,  G09G2300/04 ,  G09G2300/0426 ,  G09G2300/0814 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2310/0256 ,  G09G2310/0262 ,  G09G2310/027 ,  G09G2310/0286 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2330/028 ,  G09G2330/04 ,  G09G2330/045 ,  H01L27/12 ,  H01L27/124 ,  H01L27/1255 ,  H01L27/1285 ,  H01L27/13 ,  H01L27/15 ,  H01L27/3244 ,  H01L27/3258 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/3276 ,  H01L27/3279 ,  H01L29/4908 ,  H01L29/66757 ,  H01L33/20 ,  H01L33/32 ,  H01L51/0036 ,  H01L51/0038 ,  H01L51/0039 ,  H01L51/0059 ,  H01L51/0073 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/0087 ,  H01L51/5259 ,  H01L2227/323 ,  H01L2251/308

Abstract: By controlling the luminance of light emitting element not by means of a voltage to be impressed to the TFT but by means of controlling a current that flows to the TFT in a signal line drive circuit, the current that flows to the light emitting element is held to a desired value without depending on the characteristics of the TFT. Further, a voltage of inverted bias is impressed to the light emitting element every predetermined period. Since a multiplier effect is given by the two configurations described above, it is possible to prevent the luminance from deteriorating due to a deterioration of the organic luminescent layer, and further, it is possible to maintain the current that flows to the light emitting element to a desired value without depending on the characteristics of the TFT.

公开(公告)号：US09276224B2

公开(公告)日：2016-03-01

申请号：US14090692

申请日：2013-11-26

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Toru Takayama ,  Mai Akiba

IPC: H01L29/08 ,  H01L35/24 ,  H01L51/00 ,  H01L29/04 ,  H01L29/10 ,  H01L31/036 ,  H01L31/0376 ,  H01L31/20 ,  H01L29/15 ,  H01L27/15 ,  H01L29/26 ,  H01L31/12 ,  H01L33/00 ,  H01L27/32 ,  H01L51/52 ,  H01L51/56

CPC classification number: H01L51/0097 ,  H01L27/3244 ,  H01L27/326 ,  H01L51/5237 ,  H01L51/5253 ,  H01L51/5256 ,  H01L51/529 ,  H01L51/56 ,  H01L2221/68368 ,  H01L2227/326 ,  H01L2251/5315 ,  H01L2251/5338

Abstract: The present invention has an object of providing a light-emitting device including an OLED formed on a plastic substrate, which prevents degradation due to penetration of moisture or oxygen. On a plastic substrate, a plurality of films for preventing oxygen or moisture from penetrating into an organic light-emitting layer in the OLED (“barrier films”) and a film having a smaller stress than the barrier films (“stress relaxing film”), the film being interposed between the barrier films, are provided. Owing to a laminate structure, if a crack occurs in one of the barrier films, the other barrier film(s) can prevent moisture or oxygen from penetrating into the organic light emitting layer. The stress relaxing film, which has a smaller stress than the barrier films, is interposed between the barrier films, making it possible to reduce stress of the entire sealing film. Therefore, a crack due to stress hardly occurs.

Abstract translation: 本发明的目的是提供一种包括形成在塑料基板上的OLED的发光装置，其防止由于水分或氧气渗透而导致的劣化。 在塑料基板上，用于防止氧或水分渗入OLED（“阻挡膜”）中的有机发光层的多个膜和具有比阻挡膜（“应力放松膜”）更小的应力的膜， 设置介于阻挡膜之间的膜。 由于层叠结构，如果在一个阻挡膜中发生裂纹，则另一个阻挡膜可以防止水分或氧气渗入有机发光层。 具有比阻挡膜更小的应力的应力缓和膜被插入在阻挡膜之间，使得可以减小整个密封膜的应力。 因此，难以产生由于应力引起的裂纹。

公开(公告)号：US20150041817A1

公开(公告)日：2015-02-12

申请号：US14524040

申请日：2014-10-27

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Mai Akiba ,  Jun Koyama

IPC: H01L27/12 ,  H01L27/32

CPC classification number: H01L27/3248 ,  G09G3/2018 ,  G09G3/2022 ,  G09G3/22 ,  G09G3/3225 ,  G09G3/3233 ,  G09G3/3241 ,  G09G3/325 ,  G09G3/3258 ,  G09G3/3283 ,  G09G2300/04 ,  G09G2300/0426 ,  G09G2300/0814 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2310/0256 ,  G09G2310/0262 ,  G09G2310/027 ,  G09G2310/0286 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2330/028 ,  G09G2330/04 ,  G09G2330/045 ,  H01L27/12 ,  H01L27/124 ,  H01L27/1255 ,  H01L27/1285 ,  H01L27/13 ,  H01L27/15 ,  H01L27/3244 ,  H01L27/3258 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/3276 ,  H01L27/3279 ,  H01L29/4908 ,  H01L29/66757 ,  H01L33/20 ,  H01L33/32 ,  H01L51/0036 ,  H01L51/0038 ,  H01L51/0039 ,  H01L51/0059 ,  H01L51/0073 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/0087 ,  H01L51/5259 ,  H01L2227/323 ,  H01L2251/308

Abstract: By controlling the luminance of light emitting element not by means of a voltage to be impressed to the TFT but by means of controlling a current that flows to the TFT in a signal line drive circuit, the current that flows to the light emitting element is held to a desired value without depending on the characteristics of the TFT. Further, a voltage of inverted bias is impressed to the light emitting element every predetermined period. Since a multiplier effect is given by the two configurations described above, it is possible to prevent the luminance from deteriorating due to a deterioration of the organic luminescent layer, and further, it is possible to maintain the current that flows to the light emitting element to a desired value without depending on the characteristics of the TFT.

Abstract translation: 通过控制发光元件的亮度不是通过施加到TFT的电压来控制发光元件的亮度，而是通过控制在信号线驱动电路中流向TFT的电流，保持流向发光元件的电流 达到期望值，而不依赖于TFT的特性。 此外，每隔预定周期向发光元件施加反向偏压的电压。 由于通过上述两种配置给出乘法器效应，因此可以防止由于有机发光层的劣化引起的亮度劣化，并且还可以将流到发光元件的电流保持为 不依赖于TFT的特性的期望值。

公开(公告)号：US20130341625A1

公开(公告)日：2013-12-26

申请号：US13974330

申请日：2013-08-23

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Mai Akiba ,  Jun Koyama

IPC: H01L27/15

CPC classification number: H01L27/3248 ,  G09G3/2018 ,  G09G3/2022 ,  G09G3/22 ,  G09G3/3225 ,  G09G3/3233 ,  G09G3/3241 ,  G09G3/325 ,  G09G3/3258 ,  G09G3/3283 ,  G09G2300/04 ,  G09G2300/0426 ,  G09G2300/0814 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2310/0256 ,  G09G2310/0262 ,  G09G2310/027 ,  G09G2310/0286 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2330/028 ,  G09G2330/04 ,  G09G2330/045 ,  H01L27/12 ,  H01L27/124 ,  H01L27/1255 ,  H01L27/1285 ,  H01L27/13 ,  H01L27/15 ,  H01L27/3244 ,  H01L27/3258 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/3276 ,  H01L27/3279 ,  H01L29/4908 ,  H01L29/66757 ,  H01L33/20 ,  H01L33/32 ,  H01L51/0036 ,  H01L51/0038 ,  H01L51/0039 ,  H01L51/0059 ,  H01L51/0073 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/0087 ,  H01L51/5259 ,  H01L2227/323 ,  H01L2251/308

Abstract: By controlling the luminance of light emitting element not by means of a voltage to be impressed to the TFT but by means of controlling a current that flows to the TFT in a signal line drive circuit, the current that flows to the light emitting element is held to a desired value without depending on the characteristics of the TFT. Further, a voltage of inverted bias is impressed to the light emitting element every predetermined period. Since a multiplier effect is given by the two configurations described above, it is possible to prevent the luminance from deteriorating due to a deterioration of the organic luminescent layer, and further, it is possible to maintain the current that flows to the light emitting element to a desired value without depending on the characteristics of the TFT.

Abstract translation: 通过控制发光元件的亮度不是通过施加到TFT的电压来控制发光元件的亮度，而是通过控制在信号线驱动电路中流向TFT的电流，保持流向发光元件的电流 达到期望值，而不依赖于TFT的特性。 此外，每隔预定周期向发光元件施加反向偏压的电压。 由于通过上述两种配置给出乘法器效应，因此可以防止由于有机发光层的劣化引起的亮度劣化，并且还可以将流到发光元件的电流保持为 不依赖于TFT的特性的期望值。