公开(公告)号：US20130214256A1

公开(公告)日：2013-08-22

申请号：US13731442

申请日：2012-12-31

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daisuke Kumaki ,  Hisao Ikeda ,  Hiroko Abe ,  Satoshi Seo

IPC: H01L51/52 ,  H01L27/32

CPC classification number: H01L51/5237 ,  H01L27/3209 ,  H01L27/3241 ,  H01L27/3244 ,  H01L51/5048 ,  H01L51/506 ,  H01L51/5076 ,  H01L51/5278 ,  Y10S428/917 ,  Y10T428/24942

Abstract: A light emitting element of the invention includes n pieces of light emitting layers (n is a natural number) between first and second electrodes. A first layer and a second layer are provided between the mth light emitting layer (m is a natural number of 1≦m≦n) and the m+1th light emitting layer. The first and second layers are contacted to each other. The first layer contains a substance that transports holes easily and a substance with an electron accepting property. The second layer contains a substance that transports electrons easily and a substance with an electron donating property. Molybdenum oxide is used as the substance with the electron accepting property.

Abstract translation: 本发明的发光元件在第一和第二电极之间包括n个发光层（n是自然数）。 在第m个发光层（m是1 @ m @ n的自然数）和第m + 1个发光层之间设置第一层和第二层。 第一层和第二层彼此接触。 第一层含有容易传输孔的物质和具有电子接受性的物质。 第二层含有易于输送电子的物质和具有给电子性质的物质。 使用氧化钼作为具有电子接受性的物质。

公开(公告)号：US20130074763A1

公开(公告)日：2013-03-28

申请号：US13679391

申请日：2012-11-16

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hisao Ikeda ,  Tomoya Aoyama ,  Takahiro Ibe ,  Yoshiharu Hirakata ,  Shunpei Yamazaki

IPC: B05C11/00

CPC classification number: B05C11/00 ,  C23C14/042 ,  C23C14/12 ,  C23C14/26 ,  C23C14/28 ,  C23C14/568 ,  H01L51/0081 ,  H01L51/56

Abstract: An object is to improve use efficiency of an evaporation material, to reduce manufacturing cost of a light-emitting device, and to reduce manufacturing time needed for a light-emitting device including a layer containing an organic compound. The pressure of a film formation chamber is reduced, a plate is rapidly heated by heat conduction or heat radiation by using a heat source, a material layer on a plate is vaporized in a short time to be evaporated to a substrate on which the material layer is to be formed (formation substrate), and then the material layer is formed on the formation substrate. The area of the plate that is heated rapidly is set to have the same size as the formation substrate and film formation on the formation substrate is completed by one application of heat.

Abstract translation: 本发明的目的在于提高蒸发材料的使用效率，降低发光元件的制造成本，减少含有有机化合物的层的发光元件所需的制造时间。 成膜室的压力减小，通过使用热源的热传导或热辐射快速加热板，在短时间内蒸发板上的材料层以蒸发到其上的材料层 （形成衬底），然后在形成衬底上形成材料层。 将快速加热的板的面积设定为与形成基板相同的尺寸，并且通过一次加热完成在形成基板上的成膜。

公开(公告)号：US12230172B2

公开(公告)日：2025-02-18

申请号：US18263159

申请日：2022-01-18

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei Yamazaki ,  Yosuke Tsukamoto ,  Koji Kusunoki ,  Hisao Ikeda ,  Akio Endo ,  Yoshiaki Oikawa ,  Hideki Uochi

IPC: G09G3/00 ,  G02B27/01 ,  G06F3/01 ,  G09G3/3233

Abstract: A semiconductor device having favorable display quality is provided. The semiconductor device is provided with a display portion, a line-of-sight sensor portion, a control portion, and an arithmetic portion. The line-of-sight sensor portion has a function of obtaining first information showing a direction of a user's line of sight. The arithmetic portion has a function of determining a first region including a gaze point of the user on the display portion with use of the first information and a function of increasing a definition of an image displayed on the first region. Light emitted from the display portion may be used to obtain the first information showing the direction of the line of sight.

公开(公告)号：US11815689B2

公开(公告)日：2023-11-14

申请号：US17715321

申请日：2022-04-07

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hisao Ikeda ,  Yoshiyuki Kurokawa ,  Hiromichi Godo

IPC: G02B27/01

CPC classification number: G02B27/0172 ,  G02B2027/014 ,  G02B2027/0178 ,  G02B2027/0187

Abstract: A downsized electronic device with an eye tracking function is provided. The electronic device with an eye tracking function includes a display device, an infrared light source, and an optical system. The display device includes a display element and a light-receiving element; the infrared light source has a function of emitting infrared light; the light-receiving element has a function of detecting the infrared light reflected by an eyeball; and the optical system includes a first optical element positioned on an optical path through which an image from the display element enters the eyeball and a second optical element positioned on an optical path through which the reflected infrared light enters the light-receiving element. The light-receiving element is integrated with the display device and thus, the electronic device can have a reduced size.

公开(公告)号：US11552107B2

公开(公告)日：2023-01-10

申请号：US16793543

申请日：2020-02-18

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hisao Ikeda ,  Kouhei Toyotaka ,  Hideaki Shishido ,  Hiroyuki Miyake ,  Kohei Yokoyama ,  Yasuhiro Jinbo ,  Yoshitaka Dozen ,  Takaaki Nagata ,  Shinichi Hirasa

IPC: H01L27/12 ,  H01L27/32 ,  G09G3/3233 ,  H01L29/786 ,  G09G3/20 ,  G09G3/36 ,  G09G5/391

Abstract: Provided is a display device with extremely high resolution, a display device with higher display quality, a display device with improved viewing angle characteristics, or a flexible display device. Same-color subpixels are arranged in a zigzag pattern in a predetermined direction. In other words, when attention is paid to a subpixel, another two subpixels exhibiting the same color as the subpixel are preferably located upper right and lower right or upper left and lower left. Each pixel includes three subpixels arranged in an L shape. In addition, two pixels are combined so that pixel units including subpixel are arranged in matrix of 3×2.

公开(公告)号：US10784465B2

公开(公告)日：2020-09-22

申请号：US16031035

申请日：2018-07-10

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hisao Ikeda ,  Hiroki Ohara ,  Makoto Hosoba ,  Junichiro Sakata ,  Shunichi Ito

IPC: H01L51/52 ,  H01L51/50 ,  H01L27/32 ,  G09G3/32 ,  G09G3/3291 ,  G02F1/1362

Abstract: There has been a problem that difference in refractive index between an opposite substrate or a moisture barrier layer provided thereover, and air is maintained large, and light extraction efficiency is low. Further, there has been a problem that peeling or cracking due to the moisture barrier layer is easily generated, which leads to deteriorate the reliability and lifetime of a light-emitting element. A light-emitting element includes a pixel electrode, an electroluminescent layer, a transparent electrode, a passivation film, a stress relieving layer, and a low refractive index layer, all of which are stacked sequentially. The stress relieving layer serves to prevent peeling of the passivation film. The low refractive index layer serves to reduce reflectivity of light generated in the electroluminescent layer in emitting to air. Therefore, a light-emitting element with high reliability and long lifetime and a display device using the light-emitting element can be provided.

公开(公告)号：US10764973B2

公开(公告)日：2020-09-01

申请号：US16121702

申请日：2018-09-05

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hisao Ikeda ,  Nozomu Sugisawa ,  Yuichi Yanagisawa

IPC: H05B33/12 ,  G02F1/1333 ,  H01L27/32 ,  H01L51/52

Abstract: A display device that can display an image along a curved surface is provided. In the display device, a first display panel and a second display panel overlap each other with a light-transmitting layer provided therebetween. The light-transmitting layer is positioned on a display surface side of the first display panel, and on a side opposite to the display surface of the second display panel. The light-transmitting layer has an average transmittance of 80% or more with respect to light in the wavelength range of 450 nm to 700 nm and a refractive index higher than that of air. A display region of the first display panel overlaps a region transmitting visible light of the second display panel with the light-transmitting layer provided therebetween. It is preferred that the display region of the first display panel not overlap with a region blocking visible light of the second display panel.

公开(公告)号：US10719284B2

公开(公告)日：2020-07-21

申请号：US14936134

申请日：2015-11-09

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Yuichi Yanagisawa ,  Daiki Nakamura ,  Nozomu Sugisawa ,  Hisao Ikeda ,  Naoyuki Senda ,  Kensuke Yoshizumi

IPC: G06F3/14 ,  G06F1/16 ,  G09G3/20 ,  G06F3/044 ,  G09G3/00 ,  G06F3/147

Abstract: Provided is a display system or a display device that is suitable for increasing in size. The display system includes a first display panel, a second display panel, a detection means, and a compensation means. The first display panel includes a first display region. The second display panel includes a second display region. The first display region and the second display region include a first region where they overlap. The detection means has a function of detecting the size of the first region. The compensation means has a function of compensating an image displayed on the first display region in accordance with the change in the size of the first region.

公开(公告)号：US10555386B2

公开(公告)日：2020-02-04

申请号：US15958305

申请日：2018-04-20

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daiki Nakamura ,  Nobuharu Ohsawa ,  Hisao Ikeda ,  Akihiro Kaita ,  Shunpei Yamazaki

IPC: H05B33/08 ,  H04N5/235 ,  H05B37/02 ,  H04N5/225 ,  G03B15/05

Abstract: To provide a light-emitting device whose amount of light can be adjusted, or the like. The amount of light emitted from the light-emitting device can be adjusted by controlling the magnitude of the constant current pulse by a control signal. Specifically, the light-emitting device includes a constant current supply configured to be supplied with a control signal and a control pulse signal and configured to supply a constant current pulse; a control device configured to supply the control signal; a driver circuit configured to supply the control pulse signal; and a light-emitting panel configured to be supplied with the constant current pulse. The control signal is a signal for controlling the magnitude of the constant current pulse. The light-emitting panel includes a light-emitting element. The current density of the light-emitting element is greater than or equal to 10 mA/cm2 and less than or equal to 1000 mA/cm2.

公开(公告)号：US10451912B2

公开(公告)日：2019-10-22

申请号：US15647787

申请日：2017-07-12

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Hisao Ikeda ,  Fumito Isaka

IPC: G02F1/1335 ,  G02F1/136 ,  H01L27/32 ,  G02F1/1362 ,  H01L27/28 ,  G02F1/1333

Abstract: A display device includes a display panel and a control portion. The control portion has a function of receiving image data, and a function of generating and supplying first data and second data on the basis of the image data. The display panel includes a pixel and an optical element. The pixel includes a first display element and a second display element. The second display element includes a region adjacent to the first display element. The optical element includes a first region overlapping with the second display element. The first region has a function of directing light which enters a region overlapping with the second display element to the first display element. The first display element is a reflective display element. The second display element is a light-emitting element.