公开(公告)号：US20170103697A1

公开(公告)日：2017-04-13

申请号：US15285530

申请日：2016-10-05

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Susumu KAWASHIMA ,  Yoshiharu HIRAKATA ,  Daisuke KUBOTA

IPC: G09G3/20 ,  G06F1/32

CPC classification number: G09G3/2074 ,  G06F1/3265 ,  G09G3/2003 ,  G09G3/3225 ,  G09G2300/0456 ,  G09G2300/0809 ,  G09G2310/0237 ,  G09G2320/062 ,  G09G2360/144 ,  G09G2360/16 ,  Y02D10/153

Abstract: Power consumption of a display device is reduced. The display quality of the display device is improved. Video with high display quality is displayed regardless of the usage environment. The display device includes a first pixel performing display with reflected light, a second pixel including a light source and performing display with light from the light source, a driver portion driving the first pixel and the second pixel, a photometric portion measuring and outputting illuminance of the external light, and a control portion generating a first gray level output to the first pixel and a second gray level output to the second pixel on the basis of information of the illuminance input from the photometric portion and outputting the first and second gray levels to the driver portion. In addition, the control portion generates the first and second gray levels so that the first gray level is the largest among the combinations of the first and second gray levels at which chromaticity and luminance of light obtained by adding light output from the first pixel and light output from the second pixel have predetermined values.

公开(公告)号：US20160365367A1

公开(公告)日：2016-12-15

申请号：US15180316

申请日：2016-06-13

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hajime KIMURA ,  Daisuke KUBOTA ,  Shunpei YAMAZAKI

IPC: H01L27/12 ,  G06F3/047 ,  G06F3/044 ,  G06F3/041

CPC classification number: H01L27/1225 ,  G02F1/136227 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G06F3/047

Abstract: A display device includes a first pixel, a second pixel, a first substrate, and a second substrate. The first pixel includes a first pixel electrode, a first conductive film, and a first transistor. The first pixel electrode is electrically connected to the first transistor. The first conductive film includes a region functioning as a common electrode. The second pixel includes a second pixel electrode, a second conductive film, and a second transistor. The second pixel electrode is electrically connected to the second transistor. The second conductive film includes a region functioning as a common electrode. The first conductive film and the second pixel electrode are provided on the same plane. A first insulating film is provided over the first conductive film and the second pixel electrode. The first pixel electrode and the second conductive film are provided over the first insulating film.

Abstract translation: 显示装置包括第一像素，第二像素，第一基板和第二基板。 第一像素包括第一像素电极，第一导电膜和第一晶体管。 第一像素电极电连接到第一晶体管。 第一导电膜包括用作公共电极的区域。 第二像素包括第二像素电极，第二导电膜和第二晶体管。 第二像素电极电连接到第二晶体管。 第二导电膜包括用作公共电极的区域。 第一导电膜和第二像素电极设置在同一平面上。 第一绝缘膜设置在第一导电膜和第二像素电极之上。 第一像素电极和第二导电膜设置在第一绝缘膜上。

公开(公告)号：US20160282989A1

公开(公告)日：2016-09-29

申请号：US15076950

申请日：2016-03-22

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yoshiharu HIRAKATA ,  Daisuke KUBOTA ,  Kenichi OKAZAKI ,  Shunpei YAMAZAKI

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F2203/04111 ,  G06F2203/04112

Abstract: A lightweight touch panel is provided. A display panel includes first and second substrates, between which a liquid crystal layer is provided. The first substrate is provided with a pixel electrode, a common electrode, a transistor, and the like of a liquid crystal panel. The second substrate is provided with a touch sensor. The touch sensor includes a first electrode, two second electrodes, a third electrode, and a fourth electrode. The first electrode and the two second electrodes are formed using a first conductive film. The third and fourth electrodes are formed using a second conductive film. The first electrode extends in a first direction. The two second electrodes are provided along a second direction with the first electrode therebetween. The third electrode electrically connects the two second electrodes to each other. The fourth electrode faces the pixel electrode and the common electrode with the liquid crystal layer therebetween.

Abstract translation: 提供轻便的触摸面板。 显示面板包括第一和第二基板，其间设置有液晶层。 第一基板设置有液晶面板的像素电极，公共电极，晶体管等。 第二基板设置有触摸传感器。 触摸传感器包括第一电极，两个第二电极，第三电极和第四电极。 第一电极和两个第二电极使用第一导电膜形成。 第三和第四电极使用第二导电膜形成。 第一电极沿第一方向延伸。 沿着第二方向设置两个第二电极，其间具有第一电极。 第三电极将两个第二电极彼此电连接。 第四电极面对像素电极和公共电极，其间具有液晶层。

公开(公告)号：US20140184968A1

公开(公告)日：2014-07-03

申请号：US14134361

申请日：2013-12-19

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yasuhiro NIIKURA ,  Momoko KATO ,  Daisuke KUBOTA ,  Makoto IKENAGA

IPC: G02F1/00

CPC classification number: G02F1/1396 ,  G02F1/1391 ,  G09G3/36

Abstract: Provided is a novel liquid crystal display device without deterioration of display quality. The liquid crystal display device includes a pixel for displaying a still image with a frame frequency of 1 Hz or lower. The pixel includes a liquid crystal element which includes a liquid crystal layer and has a cell gap of d (μm). The liquid crystal layer includes a liquid crystal composition which includes a liquid crystal material. The helical pitch of the liquid crystal material is longer than or equal to 4d μm and shorter than or equal to 8d μm. With this structure, a change in voltage applied to a pixel can be kept within an acceptable range of a deviation in gray level for displaying the same image. Thus, flickers due to a low refresh rate can be reduced, which leads to an increase in display quality.

Abstract translation: 提供了一种不劣化显示质量的新型液晶显示装置。 液晶显示装置包括用于显示帧频为1Hz以下的静止图像的像素。 像素包括液晶元件，其包括液晶层，并具有d（μm）的单元间隙。 液晶层包括含有液晶材料的液晶组合物。 液晶材料的螺旋间距大于或等于4dμm且小于或等于8dμm。 利用这种结构，可以将施加到像素的电压变化保持在用于显示相同图像的灰度偏差的可接受范围内。 因此，可以减少由于刷新率低而引起的闪烁，这导致显示质量的提高。

公开(公告)号：US20250169321A1

公开(公告)日：2025-05-22

申请号：US19023842

申请日：2025-01-16

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Taisuke KAMADA ,  Daisuke KUBOTA

IPC: H10K59/38 ,  H10K50/858 ,  H10K50/86 ,  H10K59/122

Abstract: A display device having a light detection function is provided. A highly convenient display device is provided. The display device includes a light-receiving element, a first light-emitting element, and a second light-emitting element in a display portion. The light-receiving element includes a first pixel electrode, an active layer, and a common electrode. The first light-emitting element includes a second pixel electrode, a first light-emitting layer, and the common electrode. The second light-emitting element includes a third pixel electrode, a second light-emitting layer, and the common electrode. The active layer includes an organic compound. The active layer is positioned between the first pixel electrode and the common electrode. The first light-emitting layer is positioned between the second pixel electrode and the common electrode. The second light-emitting layer is positioned between the third pixel electrode and the common electrode. The first light-emitting layer is further positioned between the first pixel electrode and the common electrode and/or between the third pixel electrode and the common electrode.

公开(公告)号：US20250160189A1

公开(公告)日：2025-05-15

申请号：US19022175

申请日：2025-01-15

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daisuke KUBOTA ,  Ryo Hatsumi ,  Taisuke Kamada ,  Yuji Iwaki ,  Junpei Momo ,  Shunpei Yamazaki

IPC: H10K65/00 ,  A61B5/00 ,  A61B5/1172 ,  A61B5/145 ,  A61B5/1455 ,  G06F3/044 ,  G06V40/12 ,  G06V40/13 ,  G09F9/33 ,  H01L25/18 ,  H10K30/80 ,  H10K59/40

Abstract: A display device having a photosensing function is provided. A display device having a biometric authentication function typified by fingerprint authentication is provided. A display device having a touch panel function and a biometric authentication function is provided. The display device includes a first substrate, a light guide plate, a first light-emitting element, a second light-emitting element, and alight-receiving element. The first substrate and the light guide plate are provided to face each other. The first light-emitting element and the light-receiving element are provided between the first substrate and the light guide plate. The first light-emitting element has a function of emitting first light through the light guide plate. The second light-emitting element has a function of emitting second light to a side surface of the light guide plate. The light-receiving element has functions of receiving the first light and converting the first light into an electric signal and functions of receiving the second light and converting the second light into an electric signal. The first light includes visible light, and the second light includes infrared light.

公开(公告)号：US20250133899A1

公开(公告)日：2025-04-24

申请号：US18685084

申请日：2022-08-10

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Koji KUSUNOKI ,  Daisuke KUBOTA ,  Kensuke YOSHIZUMI ,  Junpei SUGAO

IPC: H10K50/13 ,  H10K50/19 ,  H10K59/127 ,  H10K59/40

Abstract: A display apparatus with a high aperture ratio is provided. The display apparatus includes a first pixel, a second pixel, a first coloring layer, a second coloring layer, a first conductive layer, a second conductive layer, and a first insulating layer. The first pixel includes a first pixel electrode, a first EL layer over the first pixel electrode, and a common electrode over the first EL layer. The second pixel includes a second pixel electrode, a second EL layer over the second pixel electrode, and the common electrode over the second EL layer. The second pixel is placed to be adjacent to the first pixel. The first coloring layer is placed to overlap with the first pixel. The second coloring layer is placed to overlap with the second pixel. The wavelength range of light that the second coloring layer transmits is different from a wavelength range of light that the first coloring layer transmits. The first conductive layer is placed over the common electrode. The first insulating layer is placed over the first conductive layer. The second conductive layer is placed over the first insulating layer. One or both of the first conductive layer and the second conductive layer overlap with a region interposed between the first EL layer and the second EL layer. A side surface of the first EL layer and a side surface of the second EL layer are placed to face each other.

公开(公告)号：US20250077012A1

公开(公告)日：2025-03-06

申请号：US18950355

申请日：2024-11-18

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Daisuke KUBOTA ,  Ryo HATSUMI ,  Taisuke KAMADA ,  Koji KUSUNOKI ,  Kazunori WATANABE ,  Susumu KAWASHIMA ,  Kensuke YOSHIZUMI

IPC: G06F3/041 ,  G06F3/042 ,  G06V10/147 ,  G06V40/13

Abstract: A display device featuring a touch detection and a fingerprint imaging functions is provided. A display device includes a light-emitting element and a light-receiving element. The light-emitting element includes a first pixel electrode, a light-emitting layer, and a common electrode, and the light-receiving element includes a second pixel electrode, an active layer, and the common electrode. The first pixel electrode and the second pixel electrode are provided on the same plane. The common electrode overlaps with the first pixel electrode with the light-emitting layer therebetween, and overlaps with the second pixel electrode with the active layer therebetween. A first conductive layer, a second conductive layer, and an insulating layer are provided above the common electrode. The insulating layer is provided above the first conductive layer, and the second conductive layer is provided above the insulating layer. The light-receiving element has a function of receiving light emitted from the light-emitting element.

公开(公告)号：US20250013333A1

公开(公告)日：2025-01-09

申请号：US18892996

申请日：2024-09-23

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daisuke KUBOTA ,  Roy HATSUMI ,  Taisuke KAMADA

IPC: G06F3/044 ,  G02B6/42 ,  G06F3/042 ,  G06V40/13

Abstract: A display device having a photosensing function is provided. A display device having a biometric authentication function typified by fingerprint authentication is provided. A display device having both a touch panel function and a biometric authentication function is provided. The display device includes a first substrate, a light guide plate, a first light-emitting element, a second light-emitting element, and a light-receiving element. The first substrate and the light guide plate are provided to face each other. The first light-emitting element and the light-receiving element are provided between the first substrate and the light guide plate. The first light-emitting element has a function of emitting first light through the light guide plate. The second light-emitting element has a function of emitting second light to a side surface of the light guide plate. The light-receiving element has a function of receiving the second light and converting the second light into an electric signal. The first light includes visible light, and the second light includes infrared light.

公开(公告)号：US20250008804A1

公开(公告)日：2025-01-02

申请号：US18883120

申请日：2024-09-12

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Daisuke KUBOTA ,  Taisuke KAMADA ,  Ryo HATSUMI ,  Koji KUSUNOKI ,  Kazunori WATANABE ,  Susumu KAWASHIMA

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

Abstract: The resolution of a display apparatus having a light 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.