中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

10 records (took 0.014 seconds)

    CONTROL METHOD AND CONTROL DEVICE
    1.
    发明申请
    CONTROL METHOD AND CONTROL DEVICE 有权

    公开(公告)号：US20210142742A1

    公开(公告)日：2021-05-13

    申请号：US17091654

    申请日：2020-11-06

    Applicant: JOLED INC.

    Inventor： Hiroaki ISHII

    IPC: G09G3/34 ,  G09G3/20

    Abstract: A control method or the like is provided capable of suppressing a flicker phenomenon even if frame periods vary in length. The control method is for controlling an emission period and an extinction period of a frame period, which is a period in which one image continues to be displayed. When a signal indicating start of a frame period is detected, as the frame period, n subframe periods that configure the frame period, where n is an integer greater than or equal to 2, are sequentially started from the first subframe period, after a predetermined period of time has elapsed since the detection of the signal. All of the n subframe periods are controlled to have a substantially same length determined in advance and to have a substantially same ratio between the emission period and the extinction period, determined in advance, the ratio being referred to as a duty ratio.

    SEMICONDUCTOR DEVICE AND DISPLAY APPARATUS
    3.
    发明申请
    SEMICONDUCTOR DEVICE AND DISPLAY APPARATUS 审中-公开
    半导体器件和显示器

    公开(公告)号：US20170076662A1

    公开(公告)日：2017-03-16

    申请号：US15123087

    申请日：2014-12-17

    Applicant: JOLED INC.

    Inventor： Hiroaki ISHII

    IPC: G09G3/3225 ,  G09G3/3275 ,  G09G3/3266

    Abstract: A semiconductor device includes: a receiving circuit which receives communication frames each transmitted with a first period or a second period that are different from each other and including a synchronization code and data; a logic circuit which has a first operation state in which the received communication frames are each processed as data other than a digital video signal, and a second operation state in which the received communication frames are each processed as the digital video signal; a detecting circuit which detects the synchronization code from each of the received communication frames; a measuring circuit which measures a period of the detected synchronization code; and a determining circuit which determines the measured period. The logic circuit substantially makes a transition to the first operation state or the second operation state according to a result of the determining.

    Abstract translation: 一种半导体器件，包括：接收电路，其接收各自以彼此不同的第一周期或第二周期发送的通信帧，并且包括同步码和数据; 具有第一操作状态的逻辑电路，其中接收到的通信帧各自被处理为数字视频信号以外的数据，以及第二操作状态，其中接收的通信帧各自被处理为数字视频信号; 检测电路，其从所接收的通信帧中的每一个检测同步码; 测量检测到的同步码的周期的​​测量电路; 以及确定测量周期的确定电路。 逻辑电路根据确定的结果基本上转换到第一操作状态或第二操作状态。

    CONTROL DEVICE, DISPLAY APPARATUS, AND CONTROL METHOD
    4.
    发明申请
    CONTROL DEVICE, DISPLAY APPARATUS, AND CONTROL METHOD 有权

    公开(公告)号：US20230130414A1

    公开(公告)日：2023-04-27

    申请号：US17966247

    申请日：2022-10-14

    Applicant: JOLED INC.

    Inventor： Hiroaki ISHII ,  Toshiyuki KATO

    IPC: G09G3/20 ,  G09G3/3233

    Abstract: A control device is for use in a case where frame periods, each being a period in which one image continues to be displayed, vary in length within a given range or temporarily become stable in length on a frame-by-frame basis, and accurate lengths of the frame periods are not known beforehand. The control device changes a total number of subframe periods to reconfigure the frame period with n subframe periods, where n is an integer of two or more, regardless of the frame period input, and causes the display of the image. The control device includes a signal processor that outputs an output video signal according to a first input video signal on a subframe-period-by-subframe-period basis; and a controller that supplies the output video signal output from the signal processor and a control signal for controlling an operation of the display panel to the display panel.

    CONTROL DEVICE, DISPLAY APPARATUS, AND CONTROL METHOD
    5.
    发明申请
    CONTROL DEVICE, DISPLAY APPARATUS, AND CONTROL METHOD 有权

    公开(公告)号：US20230110329A1

    公开(公告)日：2023-04-13

    申请号：US17959756

    申请日：2022-10-04

    Applicant: JOLED INC.

    Inventor： Hiroaki ISHII ,  Toshiyuki KATO

    IPC: G09G3/34 ,  G09G3/3233

    Abstract: A control device for a display panel for applications where a frame period in which a same image continues to be displayed varies from frame to frame within a certain range or the frame period is temporarily stable across frames and where a precise frame period is undetermined beforehand. The control device controls the display panel such that, when a frame having a length exceeding a preset number of lines is input, the display panel displays an image over a frame period corresponding to the preset number of lines and an added period added after the frame period. The added period includes one or more individual added periods each including a light emission period and a light extinction period, and the one or more individual added periods are each a period corresponding a predetermined number of lines.

    METHOD OF DRIVING DISPLAY PANEL, DRIVING CIRCUIT, AND DISPLAY UNIT
    6.
    发明申请
    METHOD OF DRIVING DISPLAY PANEL, DRIVING CIRCUIT, AND DISPLAY UNIT 审中-公开

    公开(公告)号：US20200027395A1

    公开(公告)日：2020-01-23

    申请号：US16423155

    申请日：2019-05-28

    Applicant: JOLED INC.

    Inventor： Hiroaki ISHII ,  Atsushi HYODO ,  Teppei ISOBE

    IPC: G09G3/3233 ,  G09G3/20

    Abstract: A method of driving a display panel includes: correcting a gate-source voltage of a first transistor to cause the gate-source voltage of a first transistor to become closer to a threshold voltage of the first transistor; and writing a signal voltage into a gate of the first transistor by applying a plurality of voltage pulses to a gate of a second transistor. The correcting and the writing are performed in each of pixels of the display panel. The signal voltage corresponds to an image signal. The voltage pulses applied in the writing include a first voltage pulse and a second voltage pulse. The first voltage pulse is applied previous to the second voltage pulse. The second voltage pulse is applied subsequent to the first voltage pulse. A peak value of the first voltage pulse is higher than a peak value of the second voltage pulse.

    CONTROL METHOD AND CONTROL DEVICE
    7.
    发明申请
    CONTROL METHOD AND CONTROL DEVICE 有权

    公开(公告)号：US20220375419A1

    公开(公告)日：2022-11-24

    申请号：US17877362

    申请日：2022-07-29

    Applicant: JOLED INC.

    Inventor： Hiroaki ISHII

    IPC: G09G3/34 ,  G09G3/20

    Abstract: A control method is provided for suppressing a flicker phenomenon even if frame periods vary in length. The control method controls an emission period and an extinction period of a frame period, which is a period in which one image continues to be displayed. When a signal indicating start of a frame period is detected, as the frame period, n subframe periods that configure the frame period, where n is an integer greater than or equal to 2, are sequentially started from the first subframe period, after a predetermined period of time has elapsed since the detection of the signal. All of the n subframe periods are controlled to have a substantially same length determined in advance and to have a substantially same ratio between the emission period and the extinction period, determined in advance, the ratio being referred to as a duty ratio.

    DISPLAY PANEL CONTROL DEVICE, DISPLAY DEVICE, AND METHOD FOR DRIVING DISPLAY PANEL
    8.
    发明申请
    DISPLAY PANEL CONTROL DEVICE, DISPLAY DEVICE, AND METHOD FOR DRIVING DISPLAY PANEL 审中-公开

    公开(公告)号：US20200162704A1

    公开(公告)日：2020-05-21

    申请号：US16748360

    申请日：2020-01-21

    Applicant: JOLED INC.

    Inventor： Hiroaki ISHII

    IPC: H04N7/56 ,  G09G3/3258 ,  H01L27/32 ,  H04N5/04 ,  G09G3/3233

    Abstract: A method for driving a display panel displays a video image signal that includes a plurality of images having different frame periods. The method includes setting a frame period including one or more light emission periods, and one or more light extinction periods. The method also includes dividing at least one frame period into a plurality of light emission periods and a plurality of light extinction periods, and adjusting lengths of the plurality of light emission periods and lengths of the plurality of light extinction periods based on a ratio between a maximum frequency of the frame period and a currently set frequency of the frame period. The method further includes displaying the video image signal by causing light emitting elements of the display panel to emit light during the adjusted light emission periods, and to extinguish light during the adjusted light extinction periods.

    DISPLAY PANEL CONTROL DEVICE, DISPLAY DEVICE, AND METHOD FOR DRIVING DISPLAY PANEL
    10.
    发明申请
    DISPLAY PANEL CONTROL DEVICE, DISPLAY DEVICE, AND METHOD FOR DRIVING DISPLAY PANEL 审中-公开

    公开(公告)号：US20180350304A1

    公开(公告)日：2018-12-06

    申请号：US15991234

    申请日：2018-05-29

    Applicant: JOLED INC.

    Inventor： Hiroaki ISHII

    IPC: G09G3/3258 ,  H04N7/56 ,  H04N5/06 ,  G09G3/3233

    Abstract: A control device includes a data storing unit, a synchronization control unit, and a duty control unit. The synchronization control unit starts a frame period when a vertical synchronization signal is received. The frame period includes a video image period and an extended period. The synchronization control unit initializes pixel circuits within a predetermined period after the reception of the vertical synchronization signal, temporarily stores the video image signal in the data storing unit after the reception of the vertical synchronization signal, and supplies the video image signal from the data storing unit to a display panel after the initialization and during the video image period. The duty control unit causes the display panel to emit light after the initialization and during the video image period, and controls the display panel such that the display panel emits and extinguishes light at a predetermined duty ratio during the extended period.

Patent Agency Ranking