-
公开(公告)号：US20240314898A1
公开(公告)日：2024-09-19
申请号：US18672324
申请日：2024-05-23
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Daiki NAKAMURA , Tomoya AOYAMA
IPC: H05B33/14 , G02F1/1335 , G02F1/1339 , H05B33/04
CPC classification number: H05B33/14 , G02F1/133526 , G02F1/1339 , H05B33/04
Abstract: A novel functional panel that is highly convenient or reliable is provided. A novel display device is provided. The functional panel includes an optical element, a first insulating film, and a region. The optical element has a first refractive index; the optical element is a convex lens; the optical element has a first surface and a second surface; the optical element has a first cross section on a first plane; the first surface forms a first curve in the first cross section; the first curve has a first radius of curvature; the second surface faces the first surface; the second surface is irradiated with first light; the first insulating film is interposed between the optical element and the region; the first insulating film is in contact with the second surface; the region overlaps with the second surface; the region faces the second surface; the region emits the first light; and a distance L1 is a distance between the region and the second surface. The distance L1 has a relationship with the first radius of curvature R1 and the first refractive index N1 represented by the following formula: L1≤5×R1/(N1−1).
-
公开(公告)号：US20240292701A1
公开(公告)日：2024-08-29
申请号：US18560710
申请日：2022-05-13
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Takayuki IKEDA , Satoshi SEO , Sachiko KAWAKAMI , Daiki NAKAMURA , Shunpei YAMAZAKI
CPC classification number: H10K59/353 , H10K50/19 , H10K59/80518 , H10K59/879
Abstract: A display device with high display quality is provided. The display device includes a first subpixel including a first light-emitting device and a first coloring layer transmitting blue light in a display portion. The first light-emitting device includes a first pixel electrode, a first EL layer, and a common electrode. The first EL layer includes a first light-emitting material emitting blue light and a second light-emitting material emitting light with a longer wavelength than blue light. The first EL layer includes a first light-emitting unit over the first pixel electrode, a charge-generation layer over the first light-emitting unit, and a second light-emitting unit over the charge-generation layer. In an emission spectrum of blue display by the display portion at a low luminance, the intensity of a first emission peak at a wavelength longer than or equal to 400 nm and shorter than 500 nm is assumed to be 1; in this case, the intensity of a second emission peak at a wavelength longer than or equal to 500 nm and shorter than or equal to 700 nm in the emission spectrum is lower than or equal to 0.5.
-
公开(公告)号：US20240276833A1
公开(公告)日：2024-08-15
申请号：US18566876
申请日：2022-05-25
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Shunpei YAMAZAKI , Takayuki IKEDA , Satoshi SEO , Sachiko KAWAKAMI , Daiki NAKAMURA
CPC classification number: H10K59/771 , H10K59/353 , H10K59/80518 , H10K59/878
Abstract: A display device with a high level of immersion or realistic sensation is provided. The display device includes a display portion capable of full-color display, a communication portion having a wireless communication function, and a wearing portion having a function of being worn on a head. The display portion includes a subpixel including a light-emitting device and a coloring layer transmitting blue light. The light-emitting device contains a first light-emitting material emitting blue light and a second light-emitting material emitting light having a longer wavelength than blue light. The light-emitting device includes a first light-emitting unit, a charge-generation layer, and a second light-emitting unit that are stacked in this order. In an emission spectrum obtained with the display portion performing blue display at low luminance, when the intensity of a first emission peak at a wavelength higher than or equal to 400 nm and lower than 500 nm is regarded as 1, the intensity of a second emission peak at a wavelength higher than or equal to 500 nm and lower than or equal to 700 nm in the emission spectrum is lower than or equal to 0.5.
-
公开(公告)号：US20240206216A1
公开(公告)日：2024-06-20
申请号：US18288333
申请日：2022-04-18
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Daisuke KUBOTA , Akio YAMASHITA , Taisuke KAMADA , Daiki NAKAMURA
CPC classification number: H10K50/13 , H10K50/156 , H10K50/166 , H10K71/231
Abstract: A display apparatus that has a light detection function and has a light detection function with high accuracy is provided. The display apparatus includes a light-receiving device and a first light-emitting device. The light-receiving device includes a first electrode, a light-receiving layer, and a common electrode that are stacked in this order. The first light-emitting device includes a second electrode, a first EL layer, and the common electrode that are stacked in this order. The light-receiving layer includes a first layer, a second layer, and an active layer between the first layer and the second layer. The first layer contains a first substance having a hole-transport property, and the second layer contains a second substance having an electron-transport property. An end portion of the active layer, an end portion of the first layer, and an end portion of the second layer are aligned or substantially aligned with one another. The first EL layer includes a third layer, a fourth layer, and a first light-emitting layer between the third layer and the fourth layer. The third layer contains a third substance having a hole-transport property, and the fourth layer contains a fourth substance having an electron-transport property.
-
公开(公告)号：US20240196657A1
公开(公告)日：2024-06-13
申请号：US18287339
申请日：2022-04-13
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Shunpei Yamazaki , Daiki NAKAMURA , Ryo YAMAUCHI , Kenichi OKAZAKI , Shingo EGUCHI
IPC: H10K59/122 , H10K59/35 , H10K59/80
CPC classification number: H10K59/122 , H10K59/353 , H10K59/80515
Abstract: A display apparatus with a wide viewing angle is provided. The display apparatus includes a first light-emitting element and a second light-emitting element over a substrate. The first light-emitting element includes a first pixel electrode, a first organic layer, and a common electrode, and the second light-emitting element includes a second pixel electrode, a second organic layer, and the common electrode. In a top view of the substrate, the first light-emitting element includes a first side and a second side that is shorter than the first side. An absolute value of a difference between a chromaticity difference between a chromaticity in a front direction and a chromaticity in a first direction and a chromaticity difference between the chromaticity in the front direction and a chromaticity in a second direction is less than or equal to 0.05. A projection of the first direction onto the substrate is parallel to the first side, and a projection of the second direction onto the substrate is parallel to the second side. An angle formed by the first direction and a normal direction of a surface of the substrate is 70°, and an angle formed by the second direction and the normal direction of the surface of the substrate is 70°.
-
Patent Agency Ranking
26.发明公开公开(公告)号：US20240164168A1
公开(公告)日：2024-05-16
申请号：US18279939
申请日：2022-02-25
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Kenichi OKAZAKI , Daiki NAKAMURA , Rai SATO , Shunpei YAMAZAKI
CPC classification number: H10K59/38 , H10K50/15 , H10K50/16 , H10K50/171 , H10K59/1201 , H10K71/166 , H10K71/60
Abstract: A higher-definition or higher-resolution display apparatus is provided. The display apparatus includes a first light-emitting device, a second light-emitting device, a first insulating layer, a first coloring layer, and a second coloring layer. The first light-emitting device includes a first pixel electrode, a first light-emitting layer over the first pixel electrode, and a common electrode over the first light-emitting layer. The second light-emitting device includes a second pixel electrode, a second light-emitting layer over the second pixel electrode, and the common electrode over the second light-emitting layer. The first insulating layer covers side surfaces of the first pixel electrode, the second pixel electrode, the first light-emitting layer, and the second light-emitting layer. The first coloring layer is placed to overlap with the first light-emitting device. The second coloring layer is placed to overlap with the second light-emitting device. The first light-emitting device and the second light-emitting device have a function of emitting white light. The first coloring layer and the second coloring layer have a function of transmitting visible light of different colors.
-
公开(公告)号：US20240114755A1
公开(公告)日：2024-04-04
申请号：US18236965
申请日：2023-08-23
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Nozomu SUGISAWA , Yasumasa YAMANE , Daiki NAKAMURA , Tsunenori SUZUKI , Naoto GOTO , Yasutaka NAKAZAWA
CPC classification number: H10K59/8793 , H10K59/1201
Abstract: A novel display apparatus that is highly convenient, useful, or reliable is provided. The display apparatus includes a first light-emitting device including a first electrode, a first layer, a first unit, and a second electrode and a second light-emitting device including a third electrode, a second layer, a second unit, and a fourth electrode. The first unit is between the first electrode and the second electrode and includes a first light-emitting material. The first layer is between the first unit and the first electrode and is in contact with the first electrode. The third electrode is adjacent to the first electrode. A first gap is between the third electrode and the first electrode. The second unit is between the third electrode and the fourth electrode and includes a second light-emitting material. The second layer is between the second unit and the third electrode and is in contact with the third electrode. The first layer and the second layer use a material having a first spin density and a material having a second spin density higher than the first spin density, respectively, each observed with an electron spin resonance (ESR) spectrometer when the material is in a film state.
-
公开(公告)号：US20230088427A1
公开(公告)日：2023-03-23
申请号：US17788438
申请日：2020-12-18
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Daiki NAKAMURA , Fumiyasu SEINO , Tomoya AOYAMA , Takahiro ISHISONE
IPC: H01L27/32 , G09G3/3225 , G06F3/041
Abstract: A novel functional panel that is highly convenient, useful, or reliable is provided. The functional panel includes a first element, a first reflective film, and an insulating film. The first element includes a first electrode, a second electrode, and a layer containing a light-emitting material; the layer containing a light-emitting material includes a region interposed between the first electrode and the second electrode; the first electrode has a light-transmitting property; and the first electrode has a first thickness. The first electrode is interposed between a region of the first reflective film and the layer containing a light-emitting material, and the first reflective film has a second thickness. The insulating film includes a first opening portion, and the first opening portion overlaps with the first electrode. The insulating film has a first step-like cross-sectional shape, and the first step-like cross-sectional shape surrounds the first opening portion. The first step-like cross-sectional shape includes a first step, and the first step is larger than or equal to a thickness obtained by adding the second thickness to the first thickness.
-
公开(公告)号：US20230006140A1
公开(公告)日：2023-01-05
申请号：US17842979
申请日：2022-06-17
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Daiki NAKAMURA , Tomoya AOYAMA , Kensuke YOSHIZUMI
Abstract: A display device that can easily have high resolution is provided. A display device having both high display quality and high resolution is provided. A display device with high contrast is provided. A first EL film is deposited in contact with a top surface and a side surface of each of a first pixel electrode and a second pixel electrode each having a tapered shape. A first sacrificial film is formed to cover the first EL film. The first sacrificial film and the first EL film are etched to expose the second pixel electrode and form a first EL layer over the first pixel electrode and a first sacrificial layer over the first EL layer, and then, the first sacrificial layer is removed. The first EL film and the second EL film are etched by dry etching. The first sacrificial layer is removed by wet etching.
-
公开(公告)号：US20220216449A1
公开(公告)日：2022-07-07
申请号：US17705464
申请日：2022-03-28
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Daiki NAKAMURA , Nozomu SUGISAWA
Abstract: A display device including display regions with inconspicuous seam is provided. The display device includes a first display panel and a second display panel. The first display panel includes a first display region and a visible-light-transmitting region. The second display panel includes a second display region. The first display region is adjacent to the visible-light-transmitting region. The first display region includes a first light-emitting element and a second light-emitting element. A first common electrode included in the first light-emitting element includes a portion in contact with a second common electrode included in the second light-emitting element. The first common electrode has a function of reflecting visible light. The second common electrode has a function of transmitting visible light. The second light-emitting element is positioned closer to the visible-light-transmitting region than the first light-emitting element. The second display region includes a portion overlapping with the second light-emitting element and a portion overlapping with the visible-light-transmitting region.
-
-
-
-
-
-
-
-
-
Search Results
116
records
(took 0.025 seconds)
