公开(公告)号：US20190179196A1

公开(公告)日：2019-06-13

申请号：US16324649

申请日：2017-08-03

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shingo EGUCHI ,  Hideaki KUWABARA ,  Kazune YOKOMIZO

IPC: G02F1/1333 ,  G09F9/30 ,  H01L29/786 ,  H01L51/50 ,  H05B33/02

Abstract: A semiconductor device including a large display portion with improved portability is provided. The display device includes a first display panel, a second display panel, and an adhesive layer. The area of the second display panel is larger than the area of the first display panel. The first display panel includes a first substrate, a second substrate, and a reflective liquid crystal element and a first transistor each positioned between the first substrate and the second substrate. The second display panel includes a first resin layer having flexibility, a second resin layer having flexibility, and a light-emitting element and a second transistor each positioned between the first resin layer and the second resin layer. The liquid crystal element has a function of reflecting light toward the second substrate side. The light-emitting element has a function of emitting light toward the second resin layer side. The first substrate and part of the second resin layer are bonded to each other with the adhesive layer.

公开(公告)号：US20220390787A1

公开(公告)日：2022-12-08

申请号：US17889425

申请日：2022-08-17

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shingo EGUCHI ,  Hideaki KUWABARA ,  Kazune YOKOMIZO

IPC: G02F1/1333 ,  H01L29/786 ,  G09F9/46 ,  G09F9/30 ,  H01L27/32 ,  H05B33/02 ,  H01L51/50

Abstract: A semiconductor device including a large display portion with improved portability is provided. The display device includes a first display panel, a second display panel, and an adhesive layer. The area of the second display panel is larger than the area of the first display panel. The first display panel includes a first substrate, a second substrate, and a reflective liquid crystal element and a first transistor each positioned between the first substrate and the second substrate. The second display panel includes a first resin layer having flexibility, a second resin layer having flexibility, and a light-emitting element and a second transistor each positioned between the first resin layer and the second resin layer. The liquid crystal element has a function of reflecting light toward the second substrate side. The light-emitting element has a function of emitting light toward the second resin layer side. The first substrate and part of the second resin layer are bonded to each other with the adhesive layer.

公开(公告)号：US20250140843A1

公开(公告)日：2025-05-01

申请号：US18927228

申请日：2024-10-25

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Mayumi MIKAMI ,  Jo SAITO ,  Teruaki OCHIAI ,  Masahiro TAKAHASHI ,  Tatsuyoshi TAKAHASHI ,  Yohei MOMMA ,  Kazutaka KURIKI ,  Kazune YOKOMIZO ,  Shunpei YAMAZAKI ,  Rihito WADA

IPC: H01M4/525 ,  H01M4/02 ,  H01M4/36 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569

Abstract: To provide a positive electrode active material in which a phase transition is inhibited and a secondary battery including the positive electrode active material. An unprecedented synthesis method has been developed in which lithium cobalt oxide particles are treated with a molten salt of MgF2—LiF as a reaction accelerator to facilitate the diffusion and doping of magnesium into lithium cobalt oxide bulk and to form a stable coating layer in the particle surface portion. Ex situ XRD analysis confirms the inhibition of the harmful phase transition and the emergence of a novel phase as the modified LiCoO2 is charged up to 4.7 V. The modified LiCoO2 shows high electrochemical performance during high-voltage operation. This technology provides a guideline for suppressing fundamental degradation associated with phase transition and achieving ultra-high energy density LiCoO2 positive electrodes.

公开(公告)号：US20230251515A1

公开(公告)日：2023-08-10

申请号：US18134206

申请日：2023-04-13

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shingo EGUCHI ,  Hideaki KUWABARA ,  Kazune YOKOMIZO

IPC: G02F1/1333 ,  G09F9/30 ,  G09F9/46 ,  H01L29/786 ,  H05B33/02 ,  H10K59/50 ,  H10K50/11

CPC classification number: G02F1/133308 ,  G02F1/1333 ,  G09F9/30 ,  G09F9/301 ,  G09F9/46 ,  H01L29/786 ,  H05B33/02 ,  H10K59/50 ,  H10K50/11 ,  H01L29/78603 ,  H10K2102/311

Abstract: A semiconductor device including a large display portion with improved portability is provided. The display device includes a first display panel, a second display panel, and an adhesive layer. The area of the second display panel is larger than the area of the first display panel. The first display panel includes a first substrate, a second substrate, and a reflective liquid crystal element and a first transistor each positioned between the first substrate and the second substrate. The second display panel includes a first resin layer having flexibility, a second resin layer having flexibility, and a light-emitting element and a second transistor each positioned between the first resin layer and the second resin layer. The liquid crystal element has a function of reflecting light toward the second substrate side. The light-emitting element has a function of emitting light toward the second resin layer side. The first substrate and part of the second resin layer are bonded to each other with the adhesive layer.