公开(公告)号：US20240143035A1

公开(公告)日：2024-05-02

申请号：US18410743

申请日：2024-01-11

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daiki NAKAMURA ,  Kazuhiko FUJITA

IPC: G06F1/16 ,  G02B1/14 ,  G06F3/041 ,  G09F9/30

CPC classification number: G06F1/1652 ,  G02B1/14 ,  G06F1/1616 ,  G06F3/0412 ,  G09F9/301

Abstract: Damage to a flexible display can be prevented. A display device having improved mechanical strength can be provided. A display device (10) includes a display panel (11) and a protection cover (12). The display panel (11) includes a first portion having flexibility. The protection cover (12) has a light-transmitting property and flexibility and is provided to overlap with a display surface side of the display panel (11). The display device (10) has a function of being reversibly changed in shape to a first mode in which the display panel (11) and the protection cover (12) are each substantially flat and a second mode in which the first portion of the display panel (11) is curved such that the display surface side becomes a concave surface and part of the protection cover (12) is curved in the same direction as the first portion. In the second mode, there is a gap between the first portion and the protection cover.

公开(公告)号：US20240057378A1

公开(公告)日：2024-02-15

申请号：US18259287

申请日：2021-12-16

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Daiki NAKAMURA ,  Tomoya AOYAMA ,  Yasutaka NAKAZAWA ,  Rai SATO ,  Seiji YASUMOTO ,  Kiyofumi OGINO ,  Takashi SHIRAISHI

IPC: H10K59/12 ,  H10K59/35 ,  H10K59/38

CPC classification number: H10K59/1201 ,  H10K59/35 ,  H10K59/38 ,  H10K71/233

Abstract: A method for fabricating a display device that easily achieves higher resolution is provided. A display device having both high display quality and high resolution is provided. A first EL film is formed over a first pixel electrode and a second pixel electrode; 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 to form a first EL layer over the first pixel electrode and a first sacrificial layer over the first EL layer; and the first sacrificial layer is removed. The first EL film and the second EL film are etched by dry etching, and the first sacrificial layer is removed by wet etching.

公开(公告)号：US20240049560A1

公开(公告)日：2024-02-08

申请号：US18258922

申请日：2021-12-14

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Daiki NAKAMURA ,  Rai SATO ,  Ryu KOKUBO ,  Hiroki ADACHI

IPC: H10K59/80 ,  H10K71/60 ,  H10K50/16 ,  H10K50/15 ,  H10K59/38

CPC classification number: H10K59/8051 ,  H10K71/60 ,  H10K59/8052 ,  H10K50/16 ,  H10K50/15 ,  H10K59/38

Abstract: A method for manufacturing a display apparatus having high display quality is provided. A method for manufacturing a display apparatus including first to third insulators, first and second conductors, and first and second EL layers is provided. The first conductor is formed over the first insulator, and the second insulator is formed over the first insulator and over the first conductor. A first opening portion reaching the first conductor is formed in the second insulator. A sacrificial layer is formed over the second insulator and over a bottom surface of the first opening portion, and a resist is applied over the sacrificial layer. Light exposure and development are performed on the resist, so that a second opening portion reaching the sacrificial layer is formed in a region overlapping with the first conductor. A third opening portion is formed in a region of a bottom surface of the second opening portion, and the first EL layer is formed over the resist, over the sacrificial layer, and over the first conductor. Then, the resist and the sacrificial layer are removed, whereby the first EL layer over the resist and over the sacrificial layer is removed. The second EL layer is formed over the first EL layer and over the second insulator, and the second conductor and the third insulator are formed in order over the second EL layer.

公开(公告)号：US20230363233A1

公开(公告)日：2023-11-09

申请号：US18211690

申请日：2023-06-20

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Tomoya AOYAMA ,  Ryu KOMATSU ,  Daiki NAKAMURA

IPC: H10K59/38 ,  G02F1/1335 ,  H10K50/86 ,  H10K59/122

CPC classification number: H10K59/38 ,  G02F1/133514 ,  H10K50/865 ,  H10K59/122 ,  G02F1/13394

Abstract: A display device with improved viewing angle characteristics is provided. A display device with suppressed mixture of colors between adjacent pixels is provided. The display device includes a first coloring layer, a second coloring layer, and a structure body therebetween. The structure body has a portion closer to a display surface side than a bottom surface of the first coloring layer or a bottom surface of the second coloring layer.

公开(公告)号：US20230317894A1

公开(公告)日：2023-10-05

申请号：US18041839

申请日：2021-08-06

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Daiki NAKAMURA ,  Tomoya AOYAMA ,  Fumiyasu SEINO ,  Tetsuji ISHITANI

IPC: H01L33/58 ,  G02B27/01 ,  H01L33/50 ,  H01L33/14

CPC classification number: H01L33/58 ,  G02B27/0172 ,  H01L33/505 ,  H01L33/145 ,  G02B2027/0112 ,  H01L33/62

Abstract: A display device that enables a user to see a bright image is provided. In the display device, a first substrate, a light-emitting element, an insulating layer, a coloring layer, a planarization layer, a plano-convex lens, a resin layer, and a second substrate are stacked in this order from the bottom. The plano-convex lens is curved outwards in the upper direction of the display device. A convex portion of the plano-convex lens is in contact with a resin layer, and the refractive index of the resin layer is lower than the refractive index of the plano-convex lens. Light emitted by the light-emitting element is converged in the forward direction by the plano-convex lens.

公开(公告)号：US20230247873A1

公开(公告)日：2023-08-03

申请号：US18012513

申请日：2021-06-24

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Daisuke KUBOTA ,  Daiki NAKAMURA ,  Ryo HATSUMI ,  Nozomu SUGISAWA

IPC: H10K59/131 ,  H10K59/123 ,  H10K59/65

CPC classification number: H10K59/131 ,  H10K59/123 ,  H10K59/65 ,  H10K59/40

Abstract: A display apparatus that has a light sensing function is provided. A display apparatus that has high light sensitivity is provided. The display apparatus includes a light-receiving element, a light-emitting element, a conductive layer, and a first wiring. The light-receiving element includes a first pixel electrode, a common layer, an active layer, and a common electrode. The light-emitting element includes a second pixel electrode, the common layer, a light-emitting layer, and the common electrode. The conductive layer is provided over the same surface as the first pixel electrode and the second pixel electrode, is positioned between the first pixel electrode and the second pixel electrode, is electrically connected to the common layer, and is electrically connected to the first wiring to which a first potential is supplied. The common layer includes a portion overlapping with the first pixel electrode, a portion overlapping with the second pixel electrode, and a portion overlapping with the conductive layer. The common electrode includes a portion overlapping with the first pixel electrode and a portion overlapping with the second pixel electrode. The first wiring is provided over a surface different from the surface where the conductive layer is provided.

公开(公告)号：US20230228970A1

公开(公告)日：2023-07-20

申请号：US18095117

申请日：2023-01-10

Applicant: Semiconductor Energy Laboratory Co., Ltd.

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

IPC: G02B7/28 ,  H10K39/34 ,  H10K59/80 ,  G06F1/16

CPC classification number: G02B7/28 ,  H10K39/34 ,  H10K59/879 ,  G06F1/163 ,  H10K59/35

Abstract: A method for operating an electronic device, which is easy on eyes, is provided. The electronic device includes a display device including a light-emitting device and a light-receiving device, and a lens. The method includes a step of displaying an image for focus adjustment of a user's eye; a step of detecting a spot diameter of first light reflected by the user's eye; a step of moving the lens and detecting a spot diameter of second light reflected by the user's eye; a step of determining whether the spot diameter of the second light is smaller than the spot diameter of the first light; a step of further moving the lens and detecting a spot diameter of the third light reflected by the user's eye in the case where the spot diameter of the second light is smaller than the spot diameter of the first light; a step of determining whether the spot diameter of the third light is smaller than the spot diameter of the second light; and a step of moving the lens to a position at which the spot diameter of the first light has been detected, in the case where the spot diameter of the second light is larger than the spot diameter of the first light.

公开(公告)号：US20220320184A1

公开(公告)日：2022-10-06

申请号：US17685821

申请日：2022-03-03

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kenichi OKAZAKI ,  Daiki NAKAMURA ,  Rai SATO

IPC: H01L27/32

Abstract: A high-definition or high-resolution display apparatus is provided. In the display apparatus, a first light-emitting device includes a first pixel electrode, a first light-emitting layer, and a common electrode. A second light-emitting device includes a second pixel electrode, a second light-emitting layer, and the common electrode. End portions of the first and second pixel electrodes are covered with a first insulating layer. A second insulating layer covers side surfaces of the first and second light-emitting layers. A first color conversion layer overlaps the first light-emitting device. A second color conversion layer overlaps the second light-emitting device. The first and second light-emitting devices each have a function of emitting blue light. The first and second color conversion layers each have a function of converting light.

公开(公告)号：US20220255045A1

公开(公告)日：2022-08-11

申请号：US17624593

申请日：2020-06-29

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Daiki NAKAMURA ,  Ryo HATSUMI ,  Rai SATO ,  Shingo EGUCHI ,  Koji KUSUNOKI

IPC: H01L51/52 ,  G02B27/09

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：US20210273025A1

公开(公告)日：2021-09-02

申请号：US17324456

申请日：2021-05-19

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Tomoya AOYAMA ,  Ryu KOMATAU ,  Daiki NAKAMURA

IPC: H01L27/32 ,  G02F1/1335 ,  H01L51/52

Abstract: A display device with improved viewing angle characteristics is provided. A display device with suppressed mixture of colors between adjacent pixels is provided. The display device includes a first coloring layer, a second coloring layer, and a structure body therebetween. The structure body has a portion closer to a display surface side than a bottom surface of the first coloring layer or a bottom surface of the second coloring layer.