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公开(公告)号：US20200176546A1
公开(公告)日：2020-06-04
申请号：US16781009
申请日：2020-02-04
Applicant: Japan Display Inc.
Inventor： Tetsuo MORITA , Hiroyuki KIMURA , Makoto SHIBUSAWA
Abstract: A multi-piece substrate integrally having a plurality of product regions each provided with a light-emitting element driven by a current and a blank region adjacent to each of the plurality of product regions is prepared. The current is passed through a cathode pad and an anode pad to inspect the light-emitting element. A plurality of display panels are cut out from the multi-piece substrate so as to respectively correspond to the plurality of product regions. The multi-piece substrate includes a plurality of first test pads disposed in each of the plurality of product regions for inspecting the light-emitting element, and a plurality of second test pads disposed in the blank region for inspecting the light-emitting element. The cathode pad and the anode pad are included in the plurality of first test pads and are not included in the plurality of second test pads.
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公开(公告)号：US20190250749A1
公开(公告)日：2019-08-15
申请号：US16392167
申请日：2019-04-23
Applicant: Japan Display Inc.
Inventor： Yoshiro AOKI , Takashi NAKAMURA , Masahiro TADA , Hirotaka HAYASHI , Makoto SHIBUSAWA , Yutaka UMEDA , Miyuki ISHIKAWA
CPC classification number: G06F3/0412 , G02F1/13338 , G06F3/0416 , G06F3/044 , G06F3/047 , G06F2203/04103 , G06F2203/04107 , G06F2203/04111 , G06F2203/04112 , H01L27/323 , H01L51/5237 , H01L51/524 , H01L51/5253
Abstract: According to one embodiment, a lateral-electric-field liquid crystal display device includes a light-emitting display layer including OLEDs and a driving circuit controlling light emission of the OLEDs, a moisture impermeable film provided to be laminated on the light-emitting display layer to prevent infiltration of moisture into the light-emitting display layer, an optical substrate provided separately from the moisture impermeable film and subjecting light from the light-emitting display region to optical processing, a first touch electrode group serving as one electrode group of touch electrodes and provided on a back surface of the optical substrate, and an extraction electrode group formed to be laminated on the moisture impermeable film, the extraction electrode group and the optical substrate have an overlapping part in plan view, and electrodes of the first touch electrode group being electrically connected to electrodes of the extraction electrode group in the overlapping part.
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公开(公告)号：US20190139995A1
公开(公告)日：2019-05-09
申请号：US16234838
申请日：2018-12-28
Applicant: Japan Display Inc.
Inventor： Tetsuo MORITA , Hiroyuki KIMURA , Makoto SHIBUSAWA , Hiroshi TABATAKE , Yasuhiro OGAWA
IPC: H01L27/12 , H01L29/786 , H01L27/13 , G02F1/1368 , H01L27/32
Abstract: Provided is a display device including: a capacitor having a first electrode, a first insulating film over the first electrode, and a second electrode over the first insulating film; and a first transistor over the capacitor. The first transistor includes the second electrode, a second insulating film over the second electrode, an oxide semiconductor film over the second insulating film, and a first source electrode and a first drain electrode over the oxide semiconductor film. The first source electrode and the first drain electrode are electrically connected to the oxide semiconductor film.
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公开(公告)号：US20190073951A1
公开(公告)日：2019-03-07
申请号：US16177513
申请日：2018-11-01
Applicant: Japan Display Inc.
Inventor： Yasuhiro OGAWA , Hiroshi TABATAKE , Hiroyuki KIMURA , Tetsuo MORITA , Makoto SHIBUSAWA
IPC: G09G3/3233 , H01L27/32 , G09G3/20 , G02F1/1362 , G09G3/3258 , G02F1/1343 , G02F1/136
Abstract: A display device includes a switching element having a first input/output terminal electrically connected to a first signal line, a first wiring electrically connected to a second input/output terminal of the switching element, a transistor having a gate electrode connected to the first wiring, a second wiring electrically connected to a source or drain of the transistor, a pixel electrode connected to the second wiring, a first insulating layer which is arranged between the first wiring and the second wiring and is arranged between the first wiring and the pixel electrode, a second insulating layer between the first insulating layer and pixel electrode, and a conducting layer between the first insulating layer and the second insulating layer, the conducting layer including a region overlapping the pixel electrode. The conducting layer includes a dividing groove dividing the conducting layer into a plurality of regions at a region overlapping the pixel electrode.
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公开(公告)号：US20180090068A1
公开(公告)日：2018-03-29
申请号：US15709661
申请日：2017-09-20
Applicant: Japan Display Inc.
Inventor： Yasuhiro OGAWA , Hiroshi TABATAKE , Hiroyuki KIMURA , Tetsuo MORITA , Makoto SHIBUSAWA
IPC: G09G3/3233 , G02F1/1343 , G09G3/3258 , G02F1/1362 , G09G3/20
CPC classification number: G09G3/3233 , G02F1/1343 , G02F1/1362 , G02F1/136213 , G02F1/13624 , G02F2001/13606 , G09G3/20 , G09G3/2003 , G09G3/2074 , G09G3/3258 , G09G2300/0426 , G09G2300/0439 , H01L27/3246
Abstract: A display device includes a switching element having a first input/output terminal electrically connected to a first signal line, a first wiring electrically connected to a second input/output terminal of the switching element, a transistor having a gate electrode connected to the first wiring, a second wiring electrically connected to a source or drain of the transistor, a pixel electrode connected to the second wiring, a first insulating layer which is arranged between the first wiring and the second wiring and is arranged between the first wiring and the pixel electrode, a second insulating layer between the first insulating layer and pixel electrode, and a conducting layer between the first insulating layer and the second insulating layer, the conducting layer including a region overlapping the pixel electrode. The conducting layer includes a dividing groove dividing the conducting layer into a plurality of regions at a region overlapping the pixel electrode.
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Patent Agency Ranking
公开(公告)号：US20180053470A1
公开(公告)日：2018-02-22
申请号：US15618202
申请日：2017-06-09
Applicant: Japan Display Inc.
Inventor： Tetsuo MORITA , Hiroyuki KIMURA , Makoto SHIBUSAWA , Hiroshi TABATAKE , Yasuhiro OGAWA
IPC: G09G3/3258
CPC classification number: G09G3/3258 , G09G3/3233 , G09G2300/043 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2300/0866 , G09G2300/0871 , G09G2310/08
Abstract: A driving method of a display device is provided. In a first period, threshold voltages are simultaneously compensated for all first transistors which are provided in a plurality of pixels arranged in a matrix form with n rows and m columns. In a second period, turning switches are turned off, and image data is written to the first transistors in the plurality of pixels row-by-row. In a third period, all light-emitting elements are made to simultaneously emit light. n and m are each an integer larger than 1. Each of the first transistors is configured so that the image data is input to a control terminal, a first terminal is electrically connected to a power-source line, and a second terminal is electrically connected to the light-emitting element. The power-source line is supplied with a high-level potential in the first and third periods and a low-level potential in the second period.
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公开(公告)号：US20170213506A1
公开(公告)日：2017-07-27
申请号：US15367426
申请日：2016-12-02
Applicant: Japan Display Inc.
Inventor： Makoto SHIBUSAWA , Hiroyuki KIMURA , Tetsuo MORITA
IPC: G09G3/3258 , G09G3/3233
CPC classification number: G09G3/3233 , G09G3/3266 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/0251 , G09G2310/0286 , G09G2310/08
Abstract: A display device including a light emitting element, a drive transistor connected to the light emitting element, a first switching element connected to the drive transistor and a main power supply line, a second switching element connected to the drive transistor and a reset power supply line, a third switching element connected to the drive transistor and a signal line, a fourth switching element connected to the third switching element and an initialization power supply line, and a capacitor element connected to the drive transistor and the third switching element, wherein two horizontal periods ON signal is supplied to a gate terminal of each of the second switching element, third switching element and fourth switching element respectively.
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公开(公告)号：US20160217736A1
公开(公告)日：2016-07-28
申请号：US15001594
申请日：2016-01-20
Applicant: Japan Display Inc.
Inventor： Hiroshi NAKAYAMA , Duzen PENG , Ilin WU , Makoto SHIBUSAWA
IPC: G09G3/32
CPC classification number: G09G3/3233 , G09G3/3225 , G09G2300/0842 , G09G2310/08 , G09G2330/028
Abstract: A display device with a plurality of pixels including a video signal wire, a first power supply wire connecting via a first switch a first power supply outputting a first voltage and connecting via a second switch a second power supply outputting a second voltage different to the first voltage, a second power supply wire connecting a third power supply outputting a third voltage different to the first voltage and the second voltage, a light emitting element arranged between the first power supply wire and the second power supply wire, a drive transistor controlling a value of a current supplied to the light emitting element, and a third switch arranged between the video signal wire and the drive transistor, the first power supply wire becoming the second voltage in a first time period within 1 horizontal scanning period, and becoming the first voltage in a remaining second time period.
Abstract translation: 一种具有包括视频信号线的多个像素的显示装置，经由第一开关连接的第一电源线，输出第一电压的第一电源和经由第二开关连接的第二电源，输出与第一电压不同的第二电压 连接输出与第一电压不同的第三电压的第三电源和第二电压的第二电源线，布置在第一电源线和第二电源线之间的发光元件，控制值的驱动晶体管 提供给发光元件的电流，以及配置在视频信号线和驱动晶体管之间的第三开关，第一电源线在1个水平扫描周期内的第一时间段内变为第二电压，并且变为第一电压 在剩下的第二时间段内。
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公开(公告)号：US20160132159A1
公开(公告)日：2016-05-12
申请号：US14995972
申请日：2016-01-14
Applicant: JAPAN DISPLAY INC.
Inventor： Yoshiro AOKI , Takashi NAKAMURA , Masahiro TADA , Hirotaka HAYASHI , Makoto SHIBUSAWA , Yutaka UMEDA , Miyuki ISHIKAWA
CPC classification number: G06F3/0412 , G02F1/13338 , G06F3/0416 , G06F3/044 , G06F3/047 , G06F2203/04103 , G06F2203/04107 , G06F2203/04111 , G06F2203/04112 , H01L27/323 , H01L51/5237 , H01L51/524 , H01L51/5253
Abstract: According to one embodiment, a lateral-electric-field liquid crystal display device includes a light-emitting display layer including OLEDs and a driving circuit controlling light emission of the OLEDs, a moisture impermeable film provided to be laminated on the light-emitting display layer to prevent infiltration of moisture into the light-emitting display layer, an optical substrate provided separately from the moisture impermeable film and subjecting light from the light-emitting display region to optical processing, a first touch electrode group serving as one electrode group of touch electrodes and provided on a back surface of the optical substrate, and an extraction electrode group formed to be laminated on the moisture impermeable film, the extraction electrode group and the optical substrate have an overlapping part in plan view, and electrodes of the first touch electrode group being electrically connected to electrodes of the extraction electrode group in the overlapping part.
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公开(公告)号：US20160086543A1
公开(公告)日：2016-03-24
申请号：US14858348
申请日：2015-09-18
Applicant: Japan Display Inc.
Inventor： Tetsuo MORITA , Hiroyuki KIMURA , Makoto SHIBUSAWA , Hiroshi NAKAYAMA , Hiroshi TABATAKE , Yutaka UMEDA
IPC: G09G3/32
CPC classification number: G09G3/3233 , G09G2300/0861 , G09G2310/0245 , G09G2330/021 , G09G2330/025 , G09G2330/026
Abstract: A flash phenomenon of OLEDs at the time of power source ON of a display device is suppressed. The OLED emits light when reference potentials VSS and VDD are applied from power source lines to the OLED's cathode and anode respectively. While the anode can be connected to one of the power source line via a driving TFT and a lighting switch, a reset potential VRS can be applied to the anode via a reset switch and the driving TFT. The lighting switch is turned OFF and the reset switch and the driving TFT are turned ON so that VRS is applied to the anode, before starting the application of the reference potentials to the power source lines. Following this state, the application of the reference potentials to the power source lines starts, and thus a normal operation of allowing the OLED to emit light starts.
Abstract translation: 抑制显示装置的电源ON时的OLED的闪光现象。 当参考电位VSS和VDD分别从电源线施加到OLED的阴极和阳极时，OLED发光。 当阳极可以经由驱动TFT和照明开关连接到电源线中的一个时，复位电位VRS可以经由复位开关和驱动TFT施加到阳极。 在开始向电源线施加参考电位之前，点亮开关被关闭并且复位开关和驱动TFT导通，使得VRS被施加到阳极。 在该状态之后，开始对电源线施加参考电位，因此开始允许OLED发光的正常操作。
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