公开(公告)号：US20180061356A1

公开(公告)日：2018-03-01

申请号：US15657459

申请日：2017-07-24

Applicant: Japan Display Inc.

Inventor： Masahiro TADA ,  Hiroyuki KIMURA ,  Takashi NAKAMURA

IPC: G09G3/36 ,  G09G3/34

CPC classification number: G09G3/3688 ,  G09G3/342 ,  G09G3/3614 ,  G09G3/3655 ,  G09G2370/08

Abstract: According to one embodiment, a display driver includes a driving unit. The driving unit applies a common voltage to a common electrode, and alternately supplies a video signal having a first polarity and the video signal having a second polarity different from the first polarity to a pixel electrode in each frame period. The driving unit adjusts the common voltage applied to the common electrode based on information of a drive frequency of the video signal.

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.

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.

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。

公开(公告)号：US20150145902A1

公开(公告)日：2015-05-28

申请号：US14554614

申请日：2014-11-26

Applicant: Japan Display Inc.

Inventor： Hiroshi NAKAYAMA ,  Tetsuo MORITA ,  Hiroyuki KIMURA ,  Makoto SHIBUSAWA

IPC: G09G3/32

CPC classification number: G09G3/3266 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/066 ,  G09G2320/0233

Abstract: According to one embodiment, a display device includes a plurality of pixel units which each includes a light-emitting element and a pixel circuit, a plurality of first scan lines and second scan lines, a plurality of video signal lines, a controller which controls a scan line drive circuit and a signal line drive circuit, wherein the pixel circuit comprises an output switch, a drive transistor, a capacitance, and a pixel switch, wherein the controller controls a reset operation, a cancellation operation, a correction operation, and a light-emitting operation, and the controller deforms a waveform of a control signal which is supplied from the second scan line in a manner that a time of transitioning the pixel switch from an on-state to an off-state is longer than the time of transitioning by a non-deformed control signal, when writing the video voltage signal in the correction operation.

Abstract translation: 根据一个实施例，显示装置包括多个像素单元，每个像素单元包括发光元件和像素电路，多个第一扫描线和第二扫描线，多个视频信号线，控制器 扫描线驱动电路和信号线驱动电路，其中所述像素电路包括输出开关，驱动晶体管，电容和像素开关，其中所述控制器控制复位操作，取消操作，校正操作和 发光操作，并且控制器使从第二扫描线提供的控制信号的波形以使得像素开关从导通状态转换到截止状态的时间长于时间 当在校正操作中写入视频电压信号时，通过非变形控制信号转换。

公开(公告)号：US20240389399A1

公开(公告)日：2024-11-21

申请号：US18640000

申请日：2024-04-19

Applicant: Japan Display Inc.

Inventor： Hideyuki TAKAHASHI ,  Hiroyuki KIMURA ,  Hiroshi TABATAKE

IPC: H10K59/122 ,  H10K59/35

Abstract: According to one embodiment, a display device includes a display area which includes subpixels, and a partition which includes a conductive lower portion and an upper portion which protrudes from a side surface of the lower portion and surrounds each of the subpixels. Each of the subpixels includes a lower electrode, an organic layer which covers the lower electrode, and an upper electrode which covers the organic layer and is in contact with the lower portion of the partition. The display area has a transmissive area located between the lower electrodes of the adjacent two subpixels. Further, the partition surrounds the transmissive area.

公开(公告)号：US20240349533A1

公开(公告)日：2024-10-17

申请号：US18611764

申请日：2024-03-21

Applicant: Japan Display Inc.

Inventor： Hideyuki TAKAHASHI ,  Hiroyuki KIMURA ,  Hiroshi TABATAKE

IPC: H10K59/10

CPC classification number: H10K59/10

Abstract: According to one embodiment, a display device includes a display area which displays an image, and a partition which includes a conductive lower portion and an upper portion protruding from a side surface of the lower portion and is provided in the display area. The display area has a first area surrounded by the partition. Further, a plurality of first subpixels which are arranged without an intervention of the partition are provided in the first area.

公开(公告)号：US20240142840A1

公开(公告)日：2024-05-02

申请号：US18404038

申请日：2024-01-04

Applicant: Japan Display Inc.

Inventor： Akio TAKIMOTO ,  Toshiki KANEKO ,  Takuo KAITOH ,  Kazuhiro NISHIYAMA ,  Hiroyuki KIMURA

IPC: G02F1/137 ,  F21V8/00 ,  G02F1/1335 ,  G09G3/36 ,  H04N23/57

CPC classification number: G02F1/137 ,  G02B6/0055 ,  G02F1/133528 ,  G09G3/36 ,  H04N23/57 ,  G09G2360/145

Abstract: According to one embodiment, an electronic apparatus includes a camera, a first polarizer, a second polarizer, a liquid crystal panel, and a controller controlling the liquid crystal panel. The liquid crystal panel includes a first region and a second region. The controller controls a first opening mode of transmitting light through the first region and the second region, and a second opening mode of making a quantity of light transmitted through the first region smaller than a quantity of light transmitted through the second region.

公开(公告)号：US20230194920A1

公开(公告)日：2023-06-22

申请号：US18168087

申请日：2023-02-13

Applicant: Japan Display Inc.

Inventor： Akio TAKIMOTO ,  Toshiki KANEKO ,  Takuo KAITOH ,  Kazuhiro NISHIYAMA ,  Hiroyuki KIMURA

IPC: G02F1/1335 ,  G02F1/1333

CPC classification number: G02F1/133553 ,  G02F1/13338 ,  G02F1/133514 ,  G02F1/133524 ,  G02F1/133528

Abstract: According to one embodiment, an electronic apparatus includes a camera, a liquid crystal panel including a display portion overlaid on the camera, a light guide having a first side surface and a main surface opposed to the liquid crystal panel and a first through hole, and a light source opposed to the first side surface. The camera is provided in the first through hole.

公开(公告)号：US20230137112A1

公开(公告)日：2023-05-04

申请号：US18148002

申请日：2022-12-29

Applicant: Japan Display Inc.

Inventor： Kazuyoshi OMATA ,  Hiroyuki KIMURA ,  Makoto SHIBUSAWA ,  Hiroshi TABATAKE

IPC: G09G3/3233 ,  G09G3/32 ,  H10K59/121 ,  H10K59/131 ,  H05B45/60 ,  G09G3/3258

Abstract: According to one embodiment, a display apparatus includes a plurality of semiconductor layers, a first insulation film, a first conductive layer, a second insulation film and a display element includes a second conductive layer. The first conductive layer and the second conductive layer are opposed to each other to form a capacitance unit.