公开(公告)号：US20040079923A1

公开(公告)日：2004-04-29

申请号：US10684410

申请日：2003-10-15

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Toshimitsu Konuma ,  Mayumi Mizukami

IPC: C09K011/06

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 3null1010 nullcm 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数次，由EL显示装置使用的发光有机化合物构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3×10 10Ω或更大的范围内。 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：US20040036822A1

公开(公告)日：2004-02-26

申请号：US10645613

申请日：2003-08-22

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Takeshi Nishi ,  Toshimitsu Konuma ,  Michio Shimizu ,  Kouji Moriya

IPC: G02F001/1333

CPC classification number: G02F1/1334 ,  G02F1/13624 ,  G02F1/141

Abstract: A liquid crystal electro-optical device comprising a pair of substrates at least one of them is light-transmitting, electrodes being provided on said substrates, and an electro-optical modulating layer being supported by said pair of substrates, provided that said electro-optical modulating layer comprises an anti-ferroelectric liquid crystal material or a smectic liquid crystal material which exhibits anti-ferroelectricity, and a transparent material.

Abstract translation: 一种液晶电光装置，包括一对基板，其中至少一个是透光的，电极设置在所述基板上，电光转换层由所述一对基板支撑，只要所述电光 调制层包括具有抗铁电性的反铁电液晶材料或近晶液晶材料和透明材料。

公开(公告)号：US20020190257A1

公开(公告)日：2002-12-19

申请号：US10206018

申请日：2002-07-26

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Mayumi Mizukami ,  Toshimitsu Konuma

IPC: H01L029/04

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: Plurality of pixels (102) are arranged on the substrate. Each of the pixels (102) is provided with an EL element which utilizes as a cathode a pixel electrode (105) connected to a current control TFT (104). On a counter substrate (110), a light shielding film (112) is disposed at the position corresponding to periphery of each pixel (102), while a color filter (113) is disposed at the position corresponding to each of the pixels (102). This light shielding film makes the contour of the pixels clear, resulting in an image display with high definition. In addition, it is possible to fabricate the EL display device of the present invention with most of an existing manufacturing line for liquid crystal display devices. Thus, an amount of equipment investment can be significantly reduced, thereby resulting in a reduction in the total manufacturing cost.

Abstract translation: 多个像素（102）被布置在基板上。 每个像素（102）设置有EL元件，其利用连接到电流控制TFT（104）的像素电极（105）作为阴极。 在对置基板（110）上，在与各像素（102）的周围对应的位置设置遮光膜（112），同时在与每个像素（102）对应的位置设置滤色器（113） ）。 该遮光膜使像素的轮廓清晰，导致高分辨率的图像显示。 此外，可以利用大部分现有的液晶显示装置制造线来制造本发明的EL显示装置。 因此，可以显着减少设备投资的量，从而导致总制造成本的降低。

公开(公告)号：US20030047730A1

公开(公告)日：2003-03-13

申请号：US10238218

申请日：2002-09-10

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Toshimitsu Konuma

IPC: H01L029/18

CPC classification number: H01L29/66757 ,  H01L21/31051 ,  H01L21/3212 ,  H01L27/3244 ,  H01L27/3246 ,  H01L29/78636 ,  H01L29/78645 ,  H01L51/005 ,  H01L51/0059 ,  H01L51/0078 ,  H01L51/0084 ,  H01L51/5016 ,  H01L51/5203 ,  H01L51/5206 ,  H01L51/5234 ,  H01L2251/5315 ,  H01L2251/558

Abstract: An element structure is provided in which film formation irregularities and deterioration of an organic compound layer formed on an electrode are prevented in an active matrix light emitting device. After forming an insulating film so as to cover edge portions of a conductor which becomes a light emitting element electrode, polishing is performed using a CMP (chemical mechanical polishing) method in the present invention, thus forming a structure in which surfaces of a first electrode and a leveled insulating layer are coplanar. The film formation irregularities in the organic compound layer formed on the electrode can thus be prevented, and electric field concentration from the edge portions of the electrode can be prevented.

Abstract translation: 提供一种元件结构，其中在有源矩阵发光器件中防止了在电极上形成的有机化合物层的成膜不均匀和劣化。 在形成绝缘膜以覆盖成为发光元件电极的导体的边缘部分之后，使用本发明中的CMP（化学机械抛光）方法进行研磨，由此形成其中第一电极的表面 并且平整的绝缘层是共面的。 因此可以防止在电极上形成的有机化合物层中的成膜不均匀性，并且可以防止来自电极的边缘部分的电场浓度。

公开(公告)号：US20040141139A1

公开(公告)日：2004-07-22

申请号：US10754702

申请日：2004-01-12

Applicant: Semiconductor Energy Laboratory Co., Ltd., a Japan corporation

Inventor： Shunpei Yamazaki ,  Jun Koyama ,  Yuji Kawasaki ,  Toshimitsu Konuma ,  Satoshi Teramoto ,  Yoshiharu Hirakata

IPC: G02F001/1345

CPC classification number: G02F1/13454 ,  G02F1/1339

Abstract: An active matrix liquid crystal display having improved reliability. Pixel regions and a peripheral driver circuit are integrally packed on the display. TFTs forming the peripheral driver circuit are located inside a sealing material layer on the side of a liquid crystal material, thus protecting the peripheral driver circuit from external moisture and contaminants. This enhances the long-term reliability of the peripheral driver circuit. Pixel TFTs are arranged in pixel regions. The leads going from the TFTs forming the peripheral driver circuit to the pixel TFTs are shortened. This results in a reduction in the resistance. As a result, the display characteristics are improved.

Abstract translation: 一种具有提高的可靠性的有源矩阵液晶显示器。 像素区域和外围驱动器电路整体地封装在显示器上。 形成外围驱动电路的TFT位于液晶材料侧的密封材料层的内部，从而保护外围驱动电路免受外部湿气和污染物的影响。 这增强了外围驱动电路的长期可靠性。 像素TFT布置在像素区域中。 从形成外围驱动电路的TFT到像素TFT的引线缩短。 这导致电阻降低。 结果，改善了显示特性。

公开(公告)号：US20040135146A1

公开(公告)日：2004-07-15

申请号：US10745007

申请日：2003-12-23

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Toshimitsu Konuma ,  Jun Koyama ,  Kazutaka Inukai ,  Mayumi Mizukami

IPC: H01L021/00

CPC classification number: H01L51/56 ,  H01L27/1222 ,  H01L27/127 ,  H01L27/3244 ,  H01L27/3262 ,  H01L29/78621 ,  H01L29/78627 ,  H01L51/5237 ,  H01L51/5246 ,  H01L51/525 ,  H01L51/5259

Abstract: To provide an electronic device capable of bright image display. A pixel is structured such that a switching TFT and a current controlling TFT are formed on a substrate and an EL element is electrically connected to the current controlling TFT. A gate capacitor formed between a gate electrode of the current controlling TFT and an LDD region thereof holds a voltage applied to the gate electrode, and hence a capacitor (condenser) is not particularly necessary in the pixel, thereby making the effective light emission area of the pixel large.

Abstract translation: 提供能够进行明亮图像显示的电子装置。 像素被构造成使得开关TFT和电流控制TFT形成在衬底上，并且EL元件电连接到电流控制TFT。 形成在电流控制TFT的栅极电极和LDD区域之间的栅极电容器保持施加到栅电极的电压，因此在像素中不特别需要电容器（电容器），从而使有效发光面积 像素大。

公开(公告)号：US20020197394A1

公开(公告)日：2002-12-26

申请号：US10219277

申请日：2002-08-16

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Mayumi Mizukami ,  Toshimitsu Konuma

IPC: B05D005/12

CPC classification number: H01L51/0005 ,  H01L27/3244 ,  H01L51/0001 ,  H01L51/529 ,  H01L51/56 ,  Y10S438/956

Abstract: An object of the invention is reducing a manufacturing cost of an EL display device and an electronic device equipped therewith. In an active matrix type EL display device, an EL material for a pixel portion is formed by coating steps using a dispenser device. As a discharge port of the dispenser is made into a linear shape, the throughput is increased. Such the dispenser device is used, so that it is possible to simplify the EL layer forming steps, then, to reduce the manufacturing cost.

Abstract translation: 本发明的一个目的是降低EL显示装置和配备其的电子装置的制造成本。 在有源矩阵型EL显示装置中，通过使用分配器装置的涂布步骤形成用于像素部分的EL材料。 当分配器的排出口形成线性形状时，生产量增加。 使用这种分配器装置，从而可以简化EL层形成步骤，然后降低制造成本。

公开(公告)号：US20020182968A1

公开(公告)日：2002-12-05

申请号：US10189438

申请日：2002-07-08

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Mayumi Mizukami ,  Toshimitsu Konuma

IPC: H01J009/00

CPC classification number: H01L27/3244 ,  H01L21/02686 ,  H01L21/2026 ,  H01L27/1214 ,  H01L27/1251 ,  H01L27/3258 ,  H01L27/3262 ,  H01L51/0004 ,  H01L51/0013 ,  H01L51/5231 ,  H01L51/56 ,  H01L2251/5315

Abstract: An object of the invention is to reduce the manufacturing cost of EL display devices and electronic devices incorporating the EL display devices. An EL material is formed by printing in an active matrix EL display device. Relief printing or screen printing may be used as the method of printing. Manufacturing steps of the EL layer is therefore simplified and reduction of manufacturing cost is devised.

Abstract translation: 本发明的目的是降低EL显示装置和结合有EL显示装置的电子装置的制造成本。 通过在有源矩阵EL显示装置中印刷形成EL材料。 可以使用浮雕印刷或丝网印刷作为印刷方法。 因此，EL层的制造步骤被简化，并且设计了制造成本的降低。

公开(公告)号：US20040256621A1

公开(公告)日：2004-12-23

申请号：US10893889

申请日：2004-07-20

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Toshimitsu Konuma ,  Akira Sugawara ,  Yukiko Uehara ,  Hongyong Zhang ,  Atsunori Suzuki ,  Hideto Ohnuma ,  Naoaki Yamaguchi ,  Hideomi Suzawa ,  Hideki Uochi ,  Yasuhiko Takemura

IPC: H01L029/04

CPC classification number: H01L29/665 ,  H01L21/02145 ,  H01L21/02244 ,  H01L21/02258 ,  H01L21/31116 ,  H01L21/31144 ,  H01L21/31683 ,  H01L21/31687 ,  H01L21/321 ,  H01L27/124 ,  H01L27/127 ,  H01L29/458 ,  H01L29/66598 ,  H01L29/66757 ,  H01L29/78621 ,  H01L29/78627

Abstract: A TFT formed on an insulating substrate source, drain and channel regions, a gate insulating film formed on at least the channel region and a gate electrode formed on the gate insulating film. Between the channel region and the drain region, a region having a higher resistivity is provided in order to reduce an Ioff current. A method for forming this structure comprises the steps of anodizing the gate electrode to form a porous anodic oxide film on the side of the gate electrode; removing a portion of the gate insulating using the porous anodic oxide film as a mask so that the gate insulating film extends beyond the gate electrode but does not completely cover the source and drain regions. Thereafter, an ion doping of one conductivity element is performed. The high resistivity region is defined under the gate insulating film.

Abstract translation: 形成在绝缘基板源极，漏极和沟道区上的TFT，至少形成在沟道区上的栅极绝缘膜和形成在栅极绝缘膜上的栅电极。 在沟道区域和漏极区域之间，提供具有较高电阻率的区域以便减小偏转电流。 形成该结构的方法包括以下步骤：在栅电极侧阳极氧化栅电极以形成多孔阳极氧化膜; 使用多孔阳极氧化膜去除一部分栅极绝缘体作为掩模，使得栅极绝缘膜延伸超过栅极电极但不完全覆盖源极和漏极区域。 此后，进行一个导电性元素的离子掺杂。 高电阻率区域限定在栅极绝缘膜下。

公开(公告)号：US20040061438A1

公开(公告)日：2004-04-01

申请号：US10664731

申请日：2003-09-18

Applicant: Semiconductor Energy Laboratory Co., Ltd.

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

IPC: H05B033/00

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.

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的下方，以形成其中辐射由EL元件203产生的热量的结构。 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。