公开(公告)号：US09293726B2

公开(公告)日：2016-03-22

申请号：US14539117

申请日：2014-11-12

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei Yamazaki ,  Jun Koyama ,  Kunitaka Yamamoto ,  Toshimitsu Konuma

IPC: H01L21/84 ,  H01L29/49 ,  H01L29/40 ,  H01L51/52 ,  H01L27/32 ,  H01L51/00 ,  H01L27/12

CPC classification number: H01L51/52 ,  H01L27/12 ,  H01L27/1214 ,  H01L27/3211 ,  H01L27/3244 ,  H01L27/3258 ,  H01L51/0005 ,  H01L51/0038 ,  H01L51/0042 ,  H01L51/0059 ,  H01L51/0062 ,  H01L51/0077 ,  H01L51/0078 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/0087 ,  H01L51/5237 ,  H01L51/524 ,  H01L51/5253 ,  H01L51/529

Abstract: An object of the present invention is to provide an EL display device having high operation performance and reliability.A third passivation film 45 is disposed under the EL element 203 comprising a pixel electrode (anode) 46, an EL layer 47 and a cathode 48, and diffusion of alkali metals from the EL element 203 formed by inkjet method into TFTs is prevented. Further, the third passivation film 45 prevents penetration of moisture and oxygen from the TFTs, and suppress degradation of the EL element 203 by dispersing the heat generated by the EL element 203.

Abstract translation: 本发明的目的是提供一种具有高操作性能和可靠性的EL显示装置。 第三钝化膜45设置在包括像素电极（阳极）46，EL层47和阴极48的EL元件203的下面，并且防止了碱金属从喷墨法形成的EL元件203扩散到TFT中。 此外，第三钝化膜45防止水分和氧从TFT渗透，并且通过分散由EL元件203产生的热量来抑制EL元件203的劣化。

公开(公告)号：US20150162567A1

公开(公告)日：2015-06-11

申请号：US14619530

申请日：2015-02-11

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Tetsuo Tsutsui ,  Toshimitsu Konuma ,  Mayumi Mizukami

IPC: H01L51/52 ,  H01L51/50 ,  H01L27/32

CPC classification number: H01L51/5275 ,  G02F1/133602 ,  H01L27/3248 ,  H01L51/0037 ,  H01L51/0091 ,  H01L51/5012 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/525 ,  H01L51/5262 ,  H01L51/5271 ,  H01L2251/558

Abstract: To provide a method of improving an efficiency for extracting light in a self light-emitting device using an organic EL material. In the self light-emitting device having a structure in which an EL layer (102) is sandwiched between a transparent electrode (103) and a cathode (101), a film thickness of the EL layer (102) and a film thickness of the transparent electrode (102) are equivalent to the film thicknesses in which there is no occurrence of a guided light, and an inert gas is filled in a space between the transparent electrode (103) and a cover material (105).

Abstract translation: 提供一种提高使用有机EL材料的自发光装置中提取光的效率的方法。 在具有EL层（102）夹在透明电极（103）和阴极（101）之间的结构的自发光器件中，EL层（102）的膜厚度和 透明电极（102）与没有引导光的膜厚相当，在透明电极（103）和覆盖材料（105）之间的空间填充惰性气体。

公开(公告)号：US08987988B2

公开(公告)日：2015-03-24

申请号：US14211193

申请日：2014-03-14

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Jun Koyama ,  Kunitaka Yamamoto ,  Toshimitsu Konuma

IPC: H01J1/62 ,  H01L23/31 ,  H01L27/12 ,  H01L27/32 ,  H01L51/52 ,  H01L51/56

CPC classification number: H01L51/5253 ,  H01L23/3171 ,  H01L27/1214 ,  H01L27/1248 ,  H01L27/322 ,  H01L27/3244 ,  H01L27/3258 ,  H01L29/78621 ,  H01L51/529 ,  H01L51/56 ,  H01L2924/0002 ,  Y10S428/917 ,  H01L2924/00

Abstract: An object of the present invention is to provide an EL display device, which has a high operating performance and reliability. A third passivation film 45 is disposed so as to be in contact with an EL element 203 which comprises a pixel electrode (anode) 46, an EL layer 47 and a cathode 48, to make a structure in which heat generated by the EL element 203 is radiated. Further, the third passivation film 45 prevents alkali metals within the EL element 203 from diffusing into the TFTs side, and prevents moisture and oxygen of the TFTs side from penetrating into the EL element 203. More preferably, heat radiating effect is given to a fourth passivation film 50 to make the EL element 203 to be enclosed by heat radiating layers.

Abstract translation: 本发明的目的是提供一种具有高操作性能和可靠性的EL显示装置。 第三钝化膜45设置成与包括像素电极（阳极）46，EL层47和阴极48的EL元件203接触，以形成由EL元件203产生的热量的结构 被辐射。 此外，第三钝化膜45防止EL元件203内的碱金属扩散到TFT侧，并且防止TFT侧的水分和氧气渗透到EL元件203中。更优选地，将散热效果提供给第四钝化膜 钝化膜50以使EL元件203被散热层包围。

公开(公告)号：US20130221362A1

公开(公告)日：2013-08-29

申请号：US13861651

申请日：2013-04-12

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Jun Koyama ,  Kunitaka Yamamoto ,  Toshimitsu Konuma

IPC: H01L27/12

CPC classification number: H01L51/5253 ,  H01L23/3171 ,  H01L27/1214 ,  H01L27/1248 ,  H01L27/322 ,  H01L27/3244 ,  H01L27/3258 ,  H01L29/78621 ,  H01L51/529 ,  H01L51/56 ,  H01L2924/0002 ,  Y10S428/917 ,  H01L2924/00

Abstract: An object of the present invention is to provide an EL display device, which has a high operating performance and reliability.A third passivation film 45 is disposed under an EL element 203 which comprises a pixel electrode (anode) 46, an EL layer 47 and a cathode 48, to make a structure in which heat generated by the EL element 203 is radiated. Further, the third passivation film 45 prevents alkali metals within the EL element 203 from diffusing into the TFTs side, and prevents moisture and oxygen of the TFTs side from penetrating into the EL element 203. More preferably, heat radiating effect is given to a fourth passivation film 50 to make the EL element 203 to be enclosed by heat radiating layers.

公开(公告)号：US09793328B2

公开(公告)日：2017-10-17

申请号：US15075436

申请日：2016-03-21

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Toshimitsu Konuma ,  Junya Maruyama

IPC: H01L27/12 ,  H01L27/32 ,  H01L51/00 ,  H01L29/786 ,  H01L51/52

CPC classification number: H01L27/3258 ,  H01L27/12 ,  H01L27/1248 ,  H01L27/3246 ,  H01L27/3248 ,  H01L27/3281 ,  H01L29/78621 ,  H01L29/78627 ,  H01L29/78645 ,  H01L51/0001 ,  H01L51/0034 ,  H01L51/0035 ,  H01L51/0038 ,  H01L51/0042 ,  H01L51/005 ,  H01L51/0062 ,  H01L51/0084 ,  H01L51/0085 ,  H01L51/5237 ,  H01L51/524 ,  H01L51/5246 ,  H01L2251/5392 ,  H01L2251/558

Abstract: Failure light emission of an EL element due to failure film formation of an organic EL material in an electrode hole 46 is improved. By forming the organic EL material after embedding an insulator in an electrode hole 46 on a pixel electrode and forming a protective portion 41b, failure film formation in the electrode hole 46 can be prevented. This can prevent concentration of electric current due to a short circuit between a cathode and an anode of the EL element, and can prevent failure light emission of an EL layer.

公开(公告)号：US09425403B2

公开(公告)日：2016-08-23

申请号：US14249649

申请日：2014-04-10

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Toshimitsu Konuma ,  Mayumi Mizukami

IPC: H01L51/00 ,  H01L51/50 ,  H01L27/32 ,  H01L51/52

CPC classification number: H01L51/0038 ,  H01L27/32 ,  H01L27/322 ,  H01L27/3244 ,  H01L51/0025 ,  H01L51/0035 ,  H01L51/005 ,  H01L51/0081 ,  H01L51/5012 ,  H01L51/5237 ,  H01L51/5243 ,  H01L51/5246 ,  H01L51/5253 ,  H01L51/5259 ,  H01L51/5284 ,  H01L2251/5315 ,  Y10S428/917

Abstract: By repeating a purification process of a light-emitting organic compound several times, a thin film made of the light-emitting organic compound to be used in an EL display device contains ionic impurities at the concentration of 0.1 ppm or lower and has a volume resistivity in the range of 3×1010 Ωcm or larger. By using such a thin film as a light-emitting layer in the EL device, a current caused by reasons other than the carrier recombination can be prevented from flowing through the thin film, and deterioration caused by unnecessary heat generation can be suppressed. Accordingly, it is possible to obtain an EL display device with high reliability.

Abstract translation: 通过重复发光有机化合物的净化处理多次，由EL显示装置中使用的发光有机化合物制成的薄膜含有浓度为0.1ppm以下的离子性杂质，具有体积电阻率 在3×1010Ωcm以上的范围内。 通过在EL器件中使用这种薄膜作为发光层，可以防止由载流子复合以外的原因引起的电流流过薄膜，并且可以抑制不必要的发热引起的劣化。 因此，可以获得高可靠性的EL显示装置。

公开(公告)号：US09293513B2

公开(公告)日：2016-03-22

申请号：US14284872

申请日：2014-05-22

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Toshimitsu Konuma ,  Junya Maruyama

IPC: H01L29/08 ,  H01L27/32 ,  H01L27/12 ,  H01L51/00 ,  H01L29/786 ,  H01L51/52

CPC classification number: H01L27/3258 ,  H01L27/12 ,  H01L27/1248 ,  H01L27/3246 ,  H01L27/3248 ,  H01L27/3281 ,  H01L29/78621 ,  H01L29/78627 ,  H01L29/78645 ,  H01L51/0001 ,  H01L51/0034 ,  H01L51/0035 ,  H01L51/0038 ,  H01L51/0042 ,  H01L51/005 ,  H01L51/0062 ,  H01L51/0084 ,  H01L51/0085 ,  H01L51/5237 ,  H01L51/524 ,  H01L51/5246 ,  H01L2251/5392 ,  H01L2251/558

Abstract: Failure light emission of an EL element due to failure film formation of an organic EL material in an electrode hole 46 is improved. By forming the organic EL material after embedding an insulator in an electrode hole 46 on a pixel electrode and forming a protective portion 41b, failure film formation in the electrode hole 46 can be prevented. This can prevent concentration of electric current due to a short circuit between a cathode and an anode of the EL element, and can prevent failure light emission of an EL layer.

Abstract translation: 由于电极孔46中的有机EL材料的成膜失败导致的EL元件的发光不良。 通过在像素电极上的电极孔46中嵌入绝缘体并形成保护部分41b之后形成有机EL材料，可以防止在电极孔46中形成失效。 这可以防止由于EL元件的阴极和阳极之间的短路导致的电流集中，并且可以防止EL层的发光不良。

公开(公告)号：US20140203286A1

公开(公告)日：2014-07-24

申请号：US14211193

申请日：2014-03-14

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Jun Koyama ,  Kunitaka Yamamoto ,  Toshimitsu Konuma

IPC: H01L27/12 ,  H01L23/31

CPC classification number: H01L51/5253 ,  H01L23/3171 ,  H01L27/1214 ,  H01L27/1248 ,  H01L27/322 ,  H01L27/3244 ,  H01L27/3258 ,  H01L29/78621 ,  H01L51/529 ,  H01L51/56 ,  H01L2924/0002 ,  Y10S428/917 ,  H01L2924/00

Abstract: An object of the present invention is to provide an EL display device, which has a high operating performance and reliability. A third passivation film 45 is disposed so as to be in contact with an EL element 203 which comprises a pixel electrode (anode) 46, an EL layer 47 and a cathode 48, to make a structure in which heat generated by the EL element 203 is radiated. Further, the third passivation film 45 prevents alkali metals within the EL element 203 from diffusing into the TFTs side, and prevents moisture and oxygen of the TFTs side from penetrating into the EL element 203. More preferably, heat radiating effect is given to a fourth passivation film 50 to make the EL element 203 to be enclosed by heat radiating layers.

Abstract translation: 本发明的目的是提供一种具有高操作性能和可靠性的EL显示装置。 第三钝化膜45设置成与包括像素电极（阳极）46，EL层47和阴极48的EL元件203接触，以形成由EL元件203产生的热量的结构 被辐射。 此外，第三钝化膜45防止EL元件203内的碱金属扩散到TFT侧，并且防止TFT侧的水分和氧气渗透到EL元件203中。更优选地，将散热效果提供给第四钝化膜 钝化膜50以使EL元件203被散热层包围。

公开(公告)号：US08735900B2

公开(公告)日：2014-05-27

申请号：US13899893

申请日：2013-05-22

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Mayumi Mizutami ,  Toshimitsu Konuma

IPC: H01L29/04

CPC classification number: H01L27/3262 ,  H01L27/1218 ,  H01L27/124 ,  H01L27/322 ,  H01L27/3244 ,  H01L27/3248 ,  H01L27/3258 ,  H01L27/3272 ,  H01L27/3276 ,  H01L51/524 ,  H01L51/5246 ,  H01L51/5253 ,  H01L51/5259 ,  H01L51/5284 ,  H01L51/56 ,  H01L2251/5315

Abstract: A plurality of pixels are arranged on the substrate. Each of the pixels is provided with an EL element which utilizes as a cathode a pixel electrode connected to a current control TFT. On a counter substrate, a light shielding film, a first color filter having a first color and a second color filter having a second color are provided. The second color is different from the first color.

Abstract translation: 多个像素被布置在基板上。 每个像素设置有EL元件，其利用连接到电流控制TFT的像素电极作为阴极。 在对置基板上设置遮光膜，具有第一颜色的第一滤色器和具有第二颜色的第二滤色器。 第二种颜色与第一种颜色不同。