公开(公告)号：US20240292697A1

公开(公告)日：2024-08-29

申请号：US18689899

申请日：2022-09-05

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Masahiro KATAYAMA ,  Yukinori SHIMA ,  Masataka NAKADA ,  Shingo EGUCHI ,  Daiki NAKAMURA ,  Koji KUSUNOKI

IPC: H10K59/32 ,  G09G3/3233 ,  H10K59/131 ,  H10K59/38 ,  H10K59/80

CPC classification number: H10K59/32 ,  H10K59/131 ,  H10K59/38 ,  H10K59/805 ,  G09G3/3233 ,  G09G2300/0814 ,  G09G2300/0842 ,  G09G2320/0223

Abstract: A display device in which a voltage drop is inhibited adequately is provided. The display device includes a first light-emitting device including a first light-emitting layer, a first charge-generation layer over the first light-emitting layer, and a second light-emitting layer over the first charge-generation layer; a first color filter overlapping with the first light-emitting device; a second light-emitting device including a third light-emitting layer, a second charge-generation layer over the third light-emitting layer, and a fourth light-emitting layer over the second charge-generation layer; a second color filter overlapping with the second light-emitting device; a common electrode included in the first light-emitting device and the second light-emitting device; and an auxiliary wiring electrically connected to the common electrode. The auxiliary wiring includes a first wiring layer and a second wiring layer, the second wiring layer is electrically connected to the first wiring layer through a contact hole of an insulating layer, and the second wiring layer has a lattice shape in a top view.

公开(公告)号：US20240290252A1

公开(公告)日：2024-08-29

申请号：US18655975

申请日：2024-05-06

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Susumu KAWASHIMA ,  Koji KUSUNOKI ,  Kazunori WATANABE ,  Satoshi YOSHIMOTO

IPC: G09G3/32 ,  H10K59/131

CPC classification number: G09G3/32 ,  H10K59/131 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/02 ,  G09G2310/08 ,  G09G2330/021

Abstract: A display apparatus having a wide range of threshold voltage compensation function is provided. In the display apparatus, a p-channel transistor is used as a driving transistor of the light-emitting device. Discharging is performed through a source-drain path while constant voltage is supplied to a gate so that Vth is extracted between the gate and the source. In addition, when a drain potential is set to the sum of forward voltage and a cathode potential of the light-emitting device or a potential sufficiently lower than the sum, it is possible to continue the discharging even when Vth is positive voltage. That is, compensation can be performed even in the case where Vth variation occurs from positive voltage to negative voltage.

公开(公告)号：US20240260287A1

公开(公告)日：2024-08-01

申请号：US18563630

申请日：2022-05-19

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daisuke KUBOTA ,  Kenichi OKAZAKI ,  Ryo HATSUMI ,  Koji KUSUNOKI ,  Shunpei YAMAZAKI

IPC: H10K39/34

CPC classification number: H10K39/34

Abstract: A display apparatus having an image capturing function is provided. A display apparatus or an image capturing device with a high aperture ratio is provided. The display apparatus includes a light-emitting element, a light-receiving element, a first resin layer, and a light-blocking layer. A first pixel electrode, a first organic layer, and a common electrode are stacked in this order in the light-emitting element. A second pixel electrode, a second organic layer, and the common electrode are stacked in this order in the light-receiving element. The first organic layer includes a first light-emitting layer, and the second organic layer includes a photoelectric conversion layer. The light-blocking layer includes a portion positioned, in a plan view, between the light-emitting element and the light-receiving element. The first resin layer is provided to cover the light-emitting element and the light-receiving element. The first resin layer includes portions positioned between the light-emitting element and the light-blocking layer and between the light-receiving element and the light-blocking layer. Furthermore, the first resin layer includes a portion with thickness smaller than an arrangement interval between the light-emitting element and the light-receiving element in a region overlapping with the light-blocking layer.

公开(公告)号：US20240250112A1

公开(公告)日：2024-07-25

申请号：US18624562

申请日：2024-04-02

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Koji KUSUNOKI ,  Shingo EGUCHI ,  Yosuke TSUKAMOTO ,  Kazunori WATANABE ,  Kouhei TOYOTAKA

IPC: H01L27/15 ,  H01L33/00 ,  H01L33/62

CPC classification number: H01L27/156 ,  H01L33/005 ,  H01L33/62 ,  H01L2933/0066

Abstract: A display device with high resolution is provided. Manufacturing cost of a display device using a micro LED as a display element is reduced. The display device includes a substrate, a plurality of transistors, and a plurality of light-emitting diodes. The plurality of light-emitting diodes are provided in a matrix over the substrate. Each of the plurality of transistors are electrically connected to at least one of the plurality of light-emitting diodes. The plurality of light-emitting diodes are positioned closer to the substrate than the plurality of transistors are. The plurality of light-emitting diodes emit light to the opposite side of the substrate.

公开(公告)号：US20240196688A1

公开(公告)日：2024-06-13

申请号：US18286840

申请日：2022-04-18

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Daisuke KUBOTA ,  Ryo HATSUMI ,  Taisuke KAMADA ,  Koji KUSUNOKI

IPC: H10K59/35 ,  H10K39/34 ,  H10K102/00

CPC classification number: H10K59/353 ,  H10K39/34 ,  H10K2102/311

Abstract: A high-resolution display apparatus having a function of detecting light is provided. The display apparatus includes a light-receiving device and a light-emitting device, the light-receiving device includes a first electrode, an active layer over the first electrode, and a second electrode over the active layer, the light-emitting device includes a third electrode, a light-emitting layer over the third electrode, and the second electrode over the light-emitting layer, and a part of the active layer and a part of the light-emitting layer overlap with each other in an outer side of the first electrode and an outer side of the third electrode in a top view.

公开(公告)号：US20240127625A1

公开(公告)日：2024-04-18

申请号：US18398403

申请日：2023-12-28

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daisuke KUBOTA ,  Koji KUSUNOKI

IPC: G06V40/12 ,  G06F21/32 ,  G06V40/13

CPC classification number: G06V40/1365 ,  G06F21/32 ,  G06V40/1318

Abstract: A novel electronic device is provided. An electronic device capable of executing various types of processing by simple operation is provided. An electronic device with a high security level is provided. The electronic device includes a control portion, a detection portion, and a memory portion. The detection portion has a function of detecting touch operation and a function of obtaining fingerprint data on a touching finger. The memory portion has a function of retaining fingerprint data on a plurality of finger registered in advance. The control portion has functions of comparing the fingerprint data on the touching finger obtained by the detection portion with the fingerprint data on the plurality of fingers when the detection portion detects touch operation, and executing processing corresponding to the fingerprint data on the touching finger or a combination of the touch operation and the fingerprint data on the touching finger when the fingerprint data on the touching finger matches any one piece of the fingerprint data on the plurality of fingers.

公开(公告)号：US20240046857A1

公开(公告)日：2024-02-08

申请号：US18380819

申请日：2023-10-17

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Kei TAKAHASHI ,  Susumu KAWASHIMA ,  Koji KUSUNOKI ,  Kazunori WATANABE

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2330/028

Abstract: The power consumption of a display device is reduced. The power consumption of a driver circuit in a display device is reduced. A pixel included in the display device includes a display element. The pixel is configured to have a function of retaining a first voltage corresponding to a first input pulse signal and a function of driving the display element with a third voltage obtained by addition of a second voltage corresponding to a second input pulse signal to the first voltage.

公开(公告)号：US20240023371A1

公开(公告)日：2024-01-18

申请号：US18039860

申请日：2021-11-25

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Shingo EGUCHI ,  Kenichi OKAZAKI ,  Koji KUSUNOKI ,  Kensuke YOSHIZUMI

IPC: H10K59/12 ,  H10K71/00 ,  H10K71/20

CPC classification number: H10K59/1201 ,  H10K71/621 ,  H10K71/231

Abstract: A novel method for fabricating a display apparatus is provided. An anode is formed over an insulating layer, an EL layer is formed over the anode, and a cathode is formed over the EL layer. A plurality of light-emitting elements are formed without provision of a partition by selectively removing parts of the anode, the EL layer, and the cathode. A conductive layer having a light-transmitting property is formed to cover the plurality of light-emitting elements. The cathodes of the plurality of light-emitting elements are electrically connected to the conductive layer.

公开(公告)号：US20230403876A1

公开(公告)日：2023-12-14

申请号：US18233361

申请日：2023-08-14

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Satoshi SEO ,  Koji KUSUNOKI ,  Kei TAKAHASHI

IPC: H10K50/115 ,  G09G3/3225 ,  H10K59/121

CPC classification number: H10K50/115 ,  G09G3/3225 ,  H10K59/1213 ,  G09G2300/0842

Abstract: A display device having a high display quality is provided. A display device that can perform desired display without image data conversion is provided. The display device includes a first pixel. The first pixel includes a first light-emitting element, a color conversion layer, and a first memory circuit. The first light-emitting element exhibits blue light. The color conversion layer has a function of converting light emitted by the first light-emitting element into light having a longer wavelength. A first image signal and a first correction signal are supplied to the first pixel. The first memory circuit has a function of retaining the first correction signal and a function of adding the first correction signal to the first image signal. The first pixel has a function of displaying an image using the first image signal and the first correction signal.

公开(公告)号：US20230395036A1

公开(公告)日：2023-12-07

申请号：US18235498

申请日：2023-08-18

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kazunori WATANABE ,  Koji KUSUNOKI

IPC: G09G3/36 ,  G02F1/1362 ,  G02F1/1368 ,  G11C19/28

CPC classification number: G09G3/3677 ,  G02F1/136286 ,  G02F1/1368 ,  G11C19/28 ,  G09G3/3611 ,  G09G2310/0267 ,  G09G2310/0286

Abstract: A display apparatus with low power consumption is provided. The display apparatus includes a circuit for boosting a signal voltage output from a gate driver. The signal voltage from the gate driver can be boosted and then supplied to a pixel, which is suitable for driving a display device with a high threshold voltage. Furthermore, by utilizing a boosting function, output of the gate driver can be reduced, and power consumption can also be reduced. By combination with a pixel having a boosting function of image data, a display apparatus with lower power consumption can be achieved.