公开(公告)号：US20250130427A1

公开(公告)日：2025-04-24

申请号：US18834445

申请日：2023-01-23

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daiki NAKAMURA ,  Hisao IKEDA ,  Ryo HATSUMI ,  Takeya HIROSE

IPC: G02B27/01 ,  H04N13/344 ,  H10K59/35

Abstract: An electronic device providing a high sense of immersion is provided. An electronic device with low power consumption is provided. A first display device includes a plurality of first pixels. The first pixel includes a light-emitting element exhibiting green. A second display device includes a plurality of second pixels. The second pixel includes a light-emitting element exhibiting red and a light-emitting element exhibiting blue. Each of the first display device and the second display device has a function of displaying a first image and a second image. The first display device is provided at such a position that the first image is reflected by the first half mirror and enters an eyepiece lens. The second display device is provided at such a position that the second image passes through the first half mirror and enters the eyepiece lens. The first image and the second image are each presented through the eyepiece lens.

公开(公告)号：US20250088769A1

公开(公告)日：2025-03-13

申请号：US18910318

申请日：2024-10-09

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunsuke SATO ,  Seiichi YONEDA ,  Yusuke NEGORO ,  Takeya HIROSE ,  Shunpei YAMAZAKI

IPC: H04N25/77

Abstract: An imaging device that has an image processing function and is capable of operating at high speed is provided. The imaging device has an additional function such as image processing, image data obtained by an imaging operation is binarized in a pixel unit, and a product-sum operation is performed using the binarized data. A memory circuit is provided in the pixel unit and retains a weight coefficient used for the product-sum operation. Thus, an arithmetic operation can be performed without the weight coefficient read from the outside every time, whereby power consumption can be reduced. Furthermore, a pixel circuit, a memory circuit, and the like and a product-sum operation circuit and the like are stacked, so that the lengths of wirings between the circuits can be reduced, and high-speed operation with low power consumption can be performed.

公开(公告)号：US20250035946A1

公开(公告)日：2025-01-30

申请号：US18716664

申请日：2022-12-15

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Ryo HATSUMI ,  Hisao IKEDA ,  Daiki NAKAMURA ,  Takeya HIROSE ,  Yosuke TSUKAMOTO

IPC: G02B27/28 ,  G02B5/30 ,  G02B27/01 ,  H10K59/90

Abstract: A thin optical device having high light utilization efficiency and a small electronic device including the optical device are provided. The thin optical device includes a reflective polarizing plate, a lens, and an optical rotator. The optical device can be a thin optical device that is small in overall length by rotation of the polarization plane of linearly polarized light with the optical rotator and utilization of properties of transmitting and reflecting light of the reflective polarizing plate. Furthermore, the optical device does not use a half mirror; thus, the optical device has a property of high light utilization efficiency, and the power consumption of the electronic device can be reduced and the reliability of the electronic device can be improved.

公开(公告)号：US20240419008A1

公开(公告)日：2024-12-19

申请号：US18722062

申请日：2022-12-09

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Ryo HATSUMI ,  Hisao IKEDA ,  Daiki NAKAMURA ,  Takeya HIROSE ,  Yosuke TSUKAMOTO

IPC: G02B27/09 ,  G02B25/00 ,  H10K59/80

Abstract: An electronic device that can provide a high sense of immersion is provided. An electronic device with low power consumption is provided. The electronic device includes a first display device, a second display device, a first half mirror, an eyepiece lens, and a first lens. The first display device displays a first image, and the second display device displays a second image. The first display device is provided at a position so that the first image is reflected by the first half mirror and enters the eyepiece lens. The second display device is provided at a position so that the second image passes through the first half mirror and enters the eyepiece lens. The first lens is provided between the second display device and the first half mirror. The pixel density of the first display device and that of the second display device are equal to each other. The first image is presented with a first viewing angle through the eyepiece lens, and the second image is presented with a second viewing angle greater than the first viewing angle through the eyepiece lens.

公开(公告)号：US20230296910A1

公开(公告)日：2023-09-21

申请号：US18182604

申请日：2023-03-13

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takeya HIROSE ,  Ryo HATSUMI ,  Hisao IKEDA ,  Daiki NAKAMURA ,  Yosuke TSUKAMOTO

IPC: G02B27/28 ,  G02B27/14

CPC classification number: G02B27/286 ,  G02B27/144

Abstract: An optical device with less influence of stray light is provided. The optical device is thin and includes a half mirror, a first lens, a retardation plate, a reflective polarizing plate, and a second lens. In the optical device, a geometric phase lens which has negative and positive refractive power is used as the first lens, whereby images can be focused after magnified optically. Thus, the optical device can have a wide viewing angle. In the case where stray light occurs due to birefringence of an optical material, negative refractive power of the first lens can prevent the stray light from being focused on the eye direction. Accordingly, image degradation recognized due to stray light can be prevented.

公开(公告)号：US20220350432A1

公开(公告)日：2022-11-03

申请号：US17760603

申请日：2020-09-22

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kei TAKAHASHI ,  Hidetomo KOBAYASHI ,  Hajime KIMURA ,  Takeshi OSADA ,  Hideaki SHISHIDO ,  Kiyotaka KIMURA ,  Shuichi KATSUI ,  Takeya HIROSE ,  Takayuki IKEDA

IPC: G06F3/041 ,  H01L51/52 ,  H01L27/12 ,  H01L51/44 ,  G09G3/3266 ,  G06F3/042 ,  G09G3/3275 ,  G09G3/3233

Abstract: To provide an inexpensive display device. The display device includes a pixel and an IC chip. The pixel includes a first pixel circuit including a display element and a second pixel circuit including a light-receiving device. The one IC chip includes a control circuit, a data driver circuit, and a read circuit. The first and second pixel circuits are electrically connected to the read circuit. The control circuit has a function of controlling driving of the data driver circuit and the read circuit. The data driver circuit has a function of supplying image data to the first pixel circuit. The read circuit has a function of outputting a monitor signal corresponding to a monitor current when the monitor current flows through the first pixel circuit. The read circuit also has a function of outputting an imaging signal corresponding to imaging data acquired by the second pixel circuit.

公开(公告)号：US20220035980A1

公开(公告)日：2022-02-03

申请号：US17299654

申请日：2019-11-20

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hitoshi KUNITAKE ,  Kazuki TSUDA ,  Tatsuki KOSHIDA ,  Takeya HIROSE ,  Tomoaki ATSUMI

IPC: G06F30/367

Abstract: A transistor model that achieves precise approximation of transistor electrical characteristics is provided. The transistor model is a field-effect transistor model. A first capacitor is provided between a gate and a source. A second capacitor is provided between the gate and a drain. Each of the first capacitor and the second capacitor is a non-linear capacitor whose capacitance value is determined depending on a gate voltage. The first capacitor may be composed of a plurality of variable capacitors. The second capacitor may be composed of a plurality of variable capacitors. When CV characteristics of the first capacitor and CV characteristics of the second capacitor are adjusted, more precise simulation data is obtained.