公开(公告)号：US12288779B2

公开(公告)日：2025-04-29

申请号：US17613189

申请日：2020-08-20

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kei Takahashi ,  Koji Kusunoki ,  Hajime Kimura

IPC: H01L25/18 ,  G06F3/041 ,  G06F3/042 ,  G06F3/044 ,  H10K65/00

Abstract: To achieve multifunctionality, a large number of components and the time and effort for implementing the components are required, which leads to an increase in the manufacturing cost and a reduction in yield. A matrix display portion and a matrix optical sensor portion are formed over one substrate. In addition, a driver circuit of the display portion and a driver circuit of the optical sensor portion formed over the same substrate as that for the display portion are built in one chip, whereby the number of components can be reduced. When the optical sensor is formed in a display panel, a barcode reader function or a scanner function can be given to the display panel. Furthermore, a function of authenticating fingerprints or the like or an input/output function of a touch sensor can be given to the display panel.

公开(公告)号：US12271233B2

公开(公告)日：2025-04-08

申请号：US18136384

申请日：2023-04-19

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Koji Kusunoki ,  Hiroyuki Miyake ,  Kazunori Watanabe

IPC: G06F1/16 ,  G06F3/041 ,  G06F3/044 ,  G06F3/045 ,  G06F3/0488 ,  G06F15/02 ,  H10K59/40 ,  H10K77/10

Abstract: To increase the detection sensitivity of a touch panel, provide a thin touch panel, provide a foldable touch panel, or provide a lightweight touch panel. A display element and a capacitor forming a touch sensor are provided between a pair of substrates. Preferably, a pair of conductive layers forming the capacitor each have an opening. The opening and the display element are provided to overlap each other. A light-blocking layer is provided between a substrate on the display surface side and the pair of conductive layers forming the capacitor.

公开(公告)号：US12256597B2

公开(公告)日：2025-03-18

申请号：US18533282

申请日：2023-12-08

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei Yamazaki ,  Daiki Nakamura ,  Ryo Hatsumi ,  Rai Sato ,  Shingo Eguchi ,  Koji Kusunoki

IPC: H10K50/858 ,  G02B1/11 ,  G02B3/00 ,  G02B27/09 ,  G06F3/0354 ,  G06F3/041 ,  G06F3/042 ,  G06F3/147 ,  G06F3/16 ,  G09F9/30 ,  G09G3/30 ,  G09G3/3225 ,  H05B33/02 ,  H10K50/00 ,  H10K59/00 ,  H10K59/12 ,  H10K59/131 ,  H10K59/60 ,  H10K59/80

Abstract: A novel functional panel that is highly convenient, useful, or reliable is provided. The functional panel includes a base material and a pair of pixels, and the base material covers the pair of pixels and has a light-transmitting property. The pair of pixels includes one pixel and another pixel, and the one pixel includes a light-emitting device and a first microlens. The light-emitting device emits light toward the base material, and the first microlens is interposed between the base material and the light emission and converges light. The first microlens includes a first surface and a second surface; the second surface is closer to the light-emitting device than the first surface is; and the second surface has a smaller radius of curvature than the first surface. The other pixel includes a photoelectric conversion device and a second microlens. The second microlens is interposed between the base material and the photoelectric conversion and converges external light incident from the base material side. The second microlens includes a third surface and a fourth surface; the third surface is closer to the photoelectric conversion device than the fourth surface is; and the fourth surface has a smaller radius of curvature than the third surface.

公开(公告)号：US12178093B2

公开(公告)日：2024-12-24

申请号：US17642425

申请日：2020-09-09

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei Yamazaki ,  Koji Kusunoki ,  Kazunori Watanabe ,  Susumu Kawashima ,  Daisuke Kubota ,  Taisuke Kamada ,  Ryo Hatsumi

IPC: H01L29/08 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K59/121 ,  H10K59/131 ,  H10K77/10 ,  H10K101/40

Abstract: The resolution of a display apparatus having a light detection function is increased. A display apparatus includes a plurality of transistors and a light-emitting and light-receiving device in a subpixel. The light-emitting and light-receiving device has a function of emitting light of a first color and a function of receiving light of a second color. One of a source and a drain of a first transistor is electrically connected to a first wiring, and the other thereof is electrically connected to a gate of a second transistor. One electrode of the light-emitting and light-receiving device is electrically connected to one of a source and a drain of the second transistor, one of a source and a drain of a third transistor, and one of a source and a drain of a fifth transistor. One of a source and a drain of a fourth transistor is electrically connected to a second wiring, and the other thereof is electrically connected to the other of the source and the drain of the third transistor.

公开(公告)号：US12111545B2

公开(公告)日：2024-10-08

申请号：US18233953

申请日：2023-08-15

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Koji Kusunoki ,  Susumu Kawashima ,  Daisuke Kubota ,  Tetsuji Ishitani ,  Akio Yamashita

IPC: G02F1/1362 ,  C09K19/38 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1368 ,  G02F1/137

CPC classification number: G02F1/13624 ,  C09K19/3857 ,  G02F1/133345 ,  G02F1/133357 ,  G02F1/133365 ,  G02F1/13439 ,  G02F1/136227 ,  G02F1/1368 ,  G02F1/13756

Abstract: A display device with a high aperture ratio is provided. The display device includes, in a pixel, a first transistor, a second transistor, a first insulating layer, a second insulating layer, a conductive layer, a pixel electrode, a layer containing a liquid crystal material, and a common electrode. The first insulating layer is positioned over a channel formation region of the first transistor. The conductive layer is positioned over the first insulating layer. The second insulating layer is positioned over the first transistor, the second transistor, the first insulating layer, and the conductive layer. The pixel electrode is positioned over the second insulating layer, the layer containing a liquid crystal material is positioned over the pixel electrode, and the common electrode is positioned over the layer containing a liquid crystal material. The common electrode overlaps with the conductive layer with the layer containing a liquid crystal material and the pixel electrode therebetween. The pixel includes a first connection portion where the conductive layer is electrically connected to the first transistor and a second connection portion where the pixel electrode is electrically connected to the second transistor. The conductive layer, the pixel electrode, and the common electrode each have a function of transmitting visible light.

公开(公告)号：US12096670B2

公开(公告)日：2024-09-17

申请号：US17625854

申请日：2020-07-08

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Daisuke Kubota ,  Taisuke Kamada ,  Ryo Hatsumi ,  Koji Kusunoki ,  Kazunori Watanabe ,  Susumu Kawashima

IPC: H01L51/52 ,  H10K50/86 ,  H10K59/35 ,  H10K59/65 ,  H10K102/00

CPC classification number: H10K59/353 ,  H10K50/865 ,  H10K59/351 ,  H10K59/352 ,  H10K59/65 ,  H10K2102/311

Abstract: The resolution of a display apparatus having alight detection function is increased. The display apparatus includes a light-emitting device and a light-emitting and light-receiving device. The light-emitting device includes a first pixel electrode, a first light-emitting layer, and a common electrode; the light-emitting and light-receiving device includes a second pixel electrode, a second light-emitting layer, an active layer, and the common electrode; the active layer includes an organic compound; the first light-emitting layer is positioned between the first pixel electrode and the common electrode; the second light-emitting layer and the active layer are each positioned between the second pixel electrode and the common electrode; the light-emitting device has a function of emitting light of a first color; and the light-emitting and light-receiving device has a function of emitting light of a second color and a function of receiving light of the first color. The light-emitting and light-receiving device functions as both a light-emitting device and a light-receiving device, whereby a pixel can have a light-receiving function without an increase in the number of subpixels included in the pixel. Furthermore, the pixel can be provided with a light-receiving function without a reduction in the resolution of the display apparatus or a reduction in the aperture ratio of each subpixel.

公开(公告)号：US12087741B2

公开(公告)日：2024-09-10

申请号：US17055206

申请日：2019-05-08

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Koji Kusunoki ,  Yosuke Tsukamoto ,  Kensuke Yoshizumi

IPC: H01L25/075 ,  H01L27/12 ,  H01L29/786 ,  H01L33/50 ,  H01L33/58 ,  H01L33/62

CPC classification number: H01L25/0753 ,  H01L27/1225 ,  H01L29/78651 ,  H01L29/7869 ,  H01L33/504 ,  H01L33/58 ,  H01L33/62 ,  H01L2933/0041 ,  H01L2933/0058 ,  H01L2933/0066

Abstract: A display device with a high luminance, a high contrast, and low power consumption is provided. The display device includes a transistor, a light-emitting element, a coloring layer, a phosphor layer, a first electrode, and a second electrode. The light-emitting element is electrically connected to the first electrode and the second electrode, the first electrode is electrically connected to the transistor, and the second electrode is positioned on the same plane as the first electrode. The coloring layer is positioned over the light-emitting element, the phosphor layer is positioned between the light-emitting element and the coloring layer, and the phosphor layer, the light-emitting element, and the coloring layer include a region in which they overlap with one another. The light-emitting element includes a light-emitting diode chip, and the phosphor layer has a function of emitting light of a complementary color of an emission color of the light-emitting element.

公开(公告)号：US12080095B2

公开(公告)日：2024-09-03

申请号：US17639632

申请日：2020-09-02

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Susumu Kawashima ,  Kazunori Watanabe ,  Koji Kusunoki ,  Satoshi Yoshimoto

IPC: G06V40/13 ,  G06F3/041 ,  G06V40/12 ,  H04N25/75

CPC classification number: G06V40/1365 ,  G06F3/0412 ,  G06V40/1318 ,  H04N25/75

Abstract: To provide an imaging device having a function of biometric authentication and a function of a touch sensor or a near touch sensor. The imaging device includes pixels, current mirror circuits, and CDS circuits. The pixels, the current mirror circuits, and the CDS circuits are electrically connected to read lines. The current mirror circuit includes a first and a second transistor. One of a source and a drain of the first transistor is electrically connected to the read line, and a power supply potential is supplied to the other of a source and a drain of the second transistor. The imaging device outputs imaging data written to the pixel, as a first signal, to the read line in a first period, and then, resets the imaging data and outputs a second signal from the pixel to the read line in a second period. In the first period, a first potential is supplied to terminals, and in the second period, a second potential is supplied to terminals. A difference between the second potential and the power supply potential is greater than a difference between the first potential and the power supply potential.

公开(公告)号：US12063802B2

公开(公告)日：2024-08-13

申请号：US17768150

申请日：2020-10-05

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daisuke Kubota ,  Taisuke Kamada ,  Ryo Hatsumi ,  Koji Kusunoki ,  Kazunori Watanabe ,  Susumu Kawashima

IPC: H10K39/34 ,  H10K50/858

CPC classification number: H10K39/34 ,  H10K50/858

Abstract: A display apparatus having a photoelectric conversion function with high sensitivity is provided. The light extraction efficiency of the display apparatus is increased. The display apparatus includes a light-emitting device, a light-emitting and light-receiving device, a first lens, and a second lens. The light-emitting device has a function of emitting light of a first color. The light-emitting and light-receiving device has a function of emitting light of a second color and a function of receiving light of the first color and converting it into an electric signal. The light emitted by the light-emitting device is emitted to the outside of the display apparatus through the first lens. Light enters the light-emitting and light-receiving device from the outside of the display apparatus through the second lens.

公开(公告)号：US12040333B2

公开(公告)日：2024-07-16

申请号：US18022329

申请日：2021-08-17

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Satoshi Yoshimoto ,  Koji Kusunoki ,  Kazunori Watanabe ,  Susumu Kawashima ,  Marina Hiyama ,  Motoharu Saito

IPC: G09G3/20 ,  H01L27/12

CPC classification number: H01L27/1248 ,  G09G3/20 ,  G09G2300/0426 ,  G09G2310/0286 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2330/021

Abstract: A highly functional semiconductor device is provided. The semiconductor device includes a first transistor and a second transistor. The first transistor includes a first semiconductor layer, a first gate electrode, a first electrode, and a second electrode. The second transistor includes a second semiconductor layer, a second gate electrode, a third electrode, and a fourth electrode. The first gate electrode and the second gate electrode are connected to each other, and the second electrode and the third electrode are connected to each other. A first insulating layer, a second insulating layer, and a second semiconductor layer are stacked over the first semiconductor layer. The first insulating layer is less likely to diffuse hydrogen than the second insulating layer. The second insulating layer contains oxide, the first semiconductor layer contains polycrystalline silicon, and the second semiconductor layer contains a metal oxide. The first transistor is a p-channel transistor and the second transistor is an n-channel transistor.