公开(公告)号：US20140152685A1

公开(公告)日：2014-06-05

申请号：US14090251

申请日：2013-11-26

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yuji IWAKI

IPC: G09G5/37 ,  G09G5/373 ,  G09G5/02

CPC classification number: G09G5/14 ,  G09G3/2007 ,  G09G5/32 ,  G09G5/34 ,  G09G2320/0261 ,  G09G2340/0435 ,  G09G2380/14

Abstract: A semiconductor device having an eye-friendly display function is provided. When a display portion displays text, a difference between a gray level of the text and a gray level of a background of the text is reduced depending on a scrolling speed of a screen of the display portion. In other words, during fast scrolling, text visibility is lowered by bringing the gray level of the text closer to the gray level of the background. This can prevent a user from following the text with eyes at the time of fast scrolling, thereby eliminating unnecessary movement of eye muscles and reducing stimuli to the optic nerve. In this manner, eye strain can be reduced.

Abstract translation: 提供具有眼睛友好的显示功能的半导体器件。 当显示部分显示文本时，根据显示部分的屏幕的滚动速度，文本的灰度级与文本背景的灰度级之间的差异减小。 换句话说，在快速滚动期间，通过使文本的灰度级别更接近背景的灰度级来降低文本可见性。 这可以防止用户在快速滚动时用眼睛跟随文本，从而消除眼睛肌肉的不必要的移动并减少对视神经的刺激。 以这种方式，可以减少眼睛疲劳。

公开(公告)号：US20240405308A1

公开(公告)日：2024-12-05

申请号：US18695496

申请日：2022-09-20

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yohei MOMMA ,  Tetsuya KAKEHATA ,  Tetsuji ISHITANI ,  Yuji IWAKI ,  Ryota TAJIMA ,  Shuhei YOSHITOMI

IPC: H01M10/615 ,  B60L58/27 ,  H01M10/44 ,  H01M10/48 ,  H01M10/625 ,  H01M10/63 ,  H01M10/653 ,  H01M50/136 ,  H01M50/213

Abstract: A power storage device that is less likely to be influenced by an ambient temperature is provided. The power storage device capable of being charged and discharged even in a low-temperature environment is provided. A first secondary battery capable of being charged and discharged even at low temperatures and a general second secondary battery are adjacent to each other in the power storage device. The power storage device having such a structure can use, as an internal heat source in a low-temperature environment, heat generated by charge and discharge of the secondary battery capable of being charged and discharged even at low temperatures. Specifically, the power storage device includes the first secondary battery and the second secondary battery adjacent to each other, the first secondary battery has flexibility, and a value of discharge capacity in discharge at −40° C. is higher than or equal to 50% of a value of discharge capacity in discharge at 25° C.

公开(公告)号：US20240379941A1

公开(公告)日：2024-11-14

申请号：US18576873

申请日：2022-06-27

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Jo SAITO ,  Tatsuyoshi TAKAHASHI ,  Kunihiko SUZUKI ,  Shunsuke HOSOUMI ,  Mayumi MIKAMI ,  Kazuki TANEMURA ,  Yuji IWAKI ,  Shunpei YAMAZAKI

IPC: H01M4/36 ,  C01G51/00 ,  H01M4/02 ,  H01M4/1315 ,  H01M4/525 ,  H01M10/0525

Abstract: A positive electrode active material that is unlikely to generate defects even when charging and discharging at a high voltage and/or at a high temperature is provided. A positive electrode active material in which crystal structures are unlikely to collapse even when charging and discharging are repeated is also provided. The positive electrode active material contains lithium, cobalt, oxygen, and an additive element. The positive electrode active material includes a surface portion, an inner portion. The positive electrode active material contains the additive element in the surface portion. The surface portion is a region extending from a surface of the positive electrode active material to a depth of 10 nm or less toward the inner portion, and the surface portion and the inner portion are topotaxy. A degree of diffusion of the additive element vary between crystal planes of the surface portion, and the additive element is at least one or two or more selected from nickel, aluminum, and magnesium.

公开(公告)号：US20240292648A1

公开(公告)日：2024-08-29

申请号：US18645743

申请日：2024-04-25

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi SEO ,  Hiromi SEO ,  Kunihiko SUZUKI ,  Kanta ABE ,  Yuji IWAKI ,  Naoaki HASHIMOTO ,  Tsunenori SUZUKI

IPC: H10K50/16 ,  H10K50/11 ,  H10K50/15 ,  H10K50/17 ,  H10K50/81 ,  H10K50/82 ,  H10K59/00 ,  H10K85/30 ,  H10K101/40

CPC classification number: H10K50/16 ,  H10K50/11 ,  H10K50/15 ,  H10K50/171 ,  H10K50/81 ,  H10K50/82 ,  H10K59/00 ,  H10K85/321 ,  H10K2101/40

Abstract: A novel light-emitting device is provided. A light-emitting device with high emission efficiency is provided. A light-emitting device with a long lifetime is provided. A light-emitting device with low driving voltage is provided. The light-emitting device includes an anode, a cathode, and an EL layer between the anode and the cathode. The EL layer includes a hole-injection layer, a light-emitting layer, and an electron-transport layer. The hole-injection layer is positioned between the anode and the light-emitting layer. The electron-transport layer is positioned between the light-emitting layer and the cathode. The hole-injection layer contains a first substance and a second substance. The first substance is an organic compound which has a hole-transport property and a HOMO level higher than or equal to −5.7 eV and lower than or equal to −5.4 eV. The second substance exhibits an electron-accepting property with respect to the first substance. The electron-transport layer contains a material whose resistance decreases with current flowing therethrough.

公开(公告)号：US20230044589A1

公开(公告)日：2023-02-09

申请号：US17767987

申请日：2020-10-06

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kaori OGITA ,  Hiroshi KADOMA ,  Tomoya HIROSE ,  Yumiko YONEDA ,  Yuji IWAKI ,  Tatsuyoshi TAKAHASHI ,  Shunpei YAMAZAKI

IPC: H01M4/62 ,  H01M10/0585 ,  H01M4/36 ,  H01M10/0562 ,  H01M4/525 ,  H01M4/131 ,  H01M4/66

Abstract: A secondary battery with excellent cycle performance is provided. The secondary battery is an all-solid-state battery including a positive electrode current collector layer, a base film, a positive electrode active material layer, a buffer layer, and a solid electrolyte layer. The base film contains titanium nitride. The positive electrode active material layer contains lithium cobalt oxide. The buffer layer contains titanium oxide. The solid electrolyte layer contains a titanium compound. By using titanium oxide for the buffer layer, a side reaction between the positive electrode active material layer and the solid electrolyte layer can be suppressed, and cycle performance can be improved.

公开(公告)号：US20230006203A1

公开(公告)日：2023-01-05

申请号：US17781178

申请日：2020-11-25

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yuji IWAKI ,  Tatsuyoshi TAKAHASHI ,  Yohei MOMMA ,  Shunpei YAMAZAKI

IPC: H01M4/525 ,  C01G51/00 ,  B60L50/64

Abstract: As for a secondary battery using lithium cobalt oxide as a positive electrode active material, the positive electrode active material with which a decrease in battery capacity due to repeated charge and discharge is inhibited is provided. Alternatively, a positive electrode active material particle which hardly deteriorates is provided. The positive electrode active material includes lithium, cobalt, oxygen, magnesium, aluminum, and fluorine and is a crystal represented by a layered rock-salt structure. The space group of the crystal is represented by R−3m. The concentration of fluorine in a surface portion of the crystal is higher than that inside the crystal. The concentration of magnesium in the surface portion of the crystal is higher than that inside the crystal. The atomic ratio of magnesium to aluminum in the surface portion of the crystal is higher than that inside the crystal.

公开(公告)号：US20220344654A1

公开(公告)日：2022-10-27

申请号：US17642323

申请日：2020-09-07

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Tatsuyoshi TAKAHASHI ,  Kunihiko SUZUKI ,  Kanta ABE ,  Yuji IWAKI

IPC: H01M4/525 ,  H01M4/36 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/0585 ,  H01M50/431

Abstract: Provided is a positive electrode for a secondary battery, which has a small change in a crystal structure due to charging and discharging and has excellent cycle performance. The positive electrode for a secondary battery includes n positive electrode active material layers (n is an integer greater than or equal to 2), n−1 separation layer(s), and a positive electrode current collector layer. The positive electrode active material layers and the separation layer(s) are alternately stacked. The positive electrode active material layer contains lithium, cobalt, and oxygen. The separation layer contains a titanium compound. Titanium oxide and titanium nitride are preferable as the titanium compound, and titanium oxide is particularly preferable.

公开(公告)号：US20210011956A1

公开(公告)日：2021-01-14

申请号：US17034064

申请日：2020-09-28

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Yuji IWAKI ,  Hajime KIMURA ,  Yoshiaki OIKAWA ,  Natsuko TAKASE

IPC: G06F16/93 ,  G06K9/66 ,  G06N3/04 ,  G06K9/00 ,  G06Q50/18 ,  G06K9/62 ,  G06N3/063 ,  G06K9/72 ,  G06F40/268

Abstract: An information search system or an intellectual property information search system that is capable of highly accurate information search is provided. The intellectual property information search system includes a processing unit. First data and first reference analysis data are input to the processing unit. The first data includes first intellectual property information. The first reference analysis data includes plural pieces of second intellectual property information. The processing unit is configured to search the first reference analysis data for data similar to the first data to generate second data. The processing unit is configured to output the second data. The second data includes a piece of the second intellectual property information similar to the first intellectual property information and information showing the degree of similarity of the piece of the second intellectual property information to the first intellectual property information.

公开(公告)号：US20200241624A1

公开(公告)日：2020-07-30

申请号：US16845140

申请日：2020-04-10

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yuji IWAKI ,  Shunpei YAMAZAKI

IPC: G06F1/3234 ,  G02F1/1333 ,  G02F1/1343 ,  G06F3/041 ,  G06F3/044 ,  G06F3/045 ,  G06F3/0488

Abstract: A method for operating an electronic device with lower power consumption is provided. The electronic device includes a display device and a touch sensor. In the case where the touch sensor senses no touch, the touch sensor is brought into a resting state or operated so as to perform a sensing operation at a reduced drive frequency. Also in the case where the touch sensor constantly senses touches and an image on the display device is not changed, the touch sensor is brought into the resting state or operated so as to perform the sensing operation at a reduced drive frequency.

公开(公告)号：US20200218485A1

公开(公告)日：2020-07-09

申请号：US16820932

申请日：2020-03-17

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yuji IWAKI ,  Katsuki YANAGAWA

IPC: G06F3/14 ,  G06F3/147 ,  G09G5/14 ,  G06F1/16

Abstract: A novel bendable and highly portable information processor is provided. In addition, a novel information processor capable of displaying information or the like on a seamless large screen is provided. A novel information processor in which one display region can be divided into two regions at a bend position is provided. A novel information processor in which different images or images for different purposes can be displayed in the respective regions is provided. The present inventors have conceived a program including a step of dividing the display region and displaying image data in the respective regions when a display unit of the information processor is bent.