中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

34 records (took 0.013 seconds)

    PANEL DRIVE CIRCUIT
    1.
    发明公开
    PANEL DRIVE CIRCUIT 审中-公开

    公开(公告)号：US20240233669A9

    公开(公告)日：2024-07-11

    申请号：US18279152

    申请日：2021-03-10

    Applicant: IIX INC.

    Inventor： Makoto HATAKENAKA ,  Takashi SAKAMOTO ,  Mitsuo HAGIWARA ,  Norimasa SENDA ,  Yoshihide MINEGISHI ,  Hiroshi MURASE

    IPC: G09G3/36

    CPC classification number: G09G3/3611 ,  G09G2320/0233 ,  G09G2320/0626 ,  G09G2320/0673 ,  G09G2360/16

    Abstract: A panel drive circuit having an input interface to which an image signal is input, a gamma correction circuit that corrects an image processing signal generated by an image processing circuit performing image processing on the image signal input to the input interface, such that a gamma correction signal thus generated has predetermined gamma characteristics, an unevenness correction circuit that corrects the gamma correction signal generated through the correction by the gamma correction circuit, based on correction data for reducing unevenness of a display panel, and an D/A convertor that has a variable output voltage range, and performs D/A conversion on an unevenness correction signal generated through the correction by the unevenness correction circuit and outputs the signal thus generated to the display panel, and the unevenness correction circuit changes the correction method according to the output voltage range of the D/A convertor.

    Unevenness evaluation method and unevenness evaluation apparatus
    2.
    发明授权
    Unevenness evaluation method and unevenness evaluation apparatus 有权

    公开(公告)号：US10436637B2

    公开(公告)日：2019-10-08

    申请号：US16096264

    申请日：2017-03-16

    Applicant: IIX INC.

    Inventor： Hiroshi Murase

    IPC: G01J1/44 ,  G01J1/42

    Abstract: Given that a plurality of visual transfer function curves for a display panel are provided for each of different ranges from the display panel, two-dimensional luminance distribution data of the display panel is filtered using a filter having visual frequency characteristics substantially passing through: a part where a recognition sensitivity increases as a spatial frequency increases in a short-range function curve, which among the plurality of visual transfer function curves is the closest to the display panel; a peak part of the short-range function curve; a peak part in a long-range function curve, which among the plurality of visual transfer function curves is the farthest from the display panel; and a part where the recognition sensitivity decreases as the spatial frequency increases in the long-range function curve. An evaluation value of luminance unevenness of the display panel is calculated on the basis of the filtered two-dimensional filtering data.

    Pattern position detection method, pattern position detection system, and image quality adjustment technique using the method and system
    4.
    发明授权
    Pattern position detection method, pattern position detection system, and image quality adjustment technique using the method and system 有权
    图案位置检测方法，图案位置检测系统以及使用该方法和系统的图像质量调整技术

    公开(公告)号：US09277209B2

    公开(公告)日：2016-03-01

    申请号：US14478101

    申请日：2014-09-05

    Applicant: IIX INC.

    Inventor： Hiroshi Murase ,  Masayoshi Imoto

    IPC: H04N17/02 ,  G09G3/00 ,  G09G5/02 ,  G09G3/36

    CPC classification number: H04N17/02 ,  G09G3/006 ,  G09G3/3611 ,  G09G5/02 ,  G09G2320/0233 ,  G09G2320/0666 ,  G09G2320/0693 ,  G09G2360/145

    Abstract: Provided is a pattern position detection method that allows detecting positions of patterns used for alignment with high accuracy. According to the pattern position detection method of the present invention, patterns are displayed on a liquid crystal panel (2) and captured by a camera (3). A black image is displayed on the liquid crystal panel (2) and captured by the camera (3) using a shutter speed or an f-number used when capturing the patterns. Based on a difference between a captured image of the patterns and a captured image of the black image, positions of images of the patterns on an imaging surface of the camera (3) are detected.

    Abstract translation: 提供了一种允许以高精度检测用于对准的图案的位置的图案位置检测方法。 根据本发明的图案位置检测方法，将图案显示在液晶面板（2）上并由相机（3）捕获。 使用在拍摄图案时使用的快门速度或f数，在液晶面板（2）上显示黑色图像并由相机（3）拍摄。 基于图案的拍摄图像和黑色图像的拍摄图像之间的差异，检测相机（3）的成像表面上的图案的图像的位置。

    IMAGE QUALITY ADJUSTMENT APPARATUS, IMAGE QUALITY ADJUSTMENT CIRCUIT, AND DISPLAY PANEL
    5.
    发明申请
    IMAGE QUALITY ADJUSTMENT APPARATUS, IMAGE QUALITY ADJUSTMENT CIRCUIT, AND DISPLAY PANEL 审中-公开
    图像质量调整装置，图像质量调整电路和显示面板

    公开(公告)号：US20140118558A1

    公开(公告)日：2014-05-01

    申请号：US14059644

    申请日：2013-10-22

    Applicant: IIX INC.

    Inventor： Masayoshi IMOTO ,  Hiroshi MURASE

    IPC: H04N17/00

    CPC classification number: H04N17/00 ,  G09G3/006 ,  G09G3/3208 ,  G09G2320/0233 ,  G09G2360/147

    Abstract: Provided is an image quality adjustment apparatus that can measure display unevenness for each pixel with higher accuracy than in the conventional art. An image quality adjustment system includes an image quality adjustment apparatus that generates correction data corresponding to a display panel, a test pattern generation device that causes the display panel to display a test pattern image, and a ROM writer. The image quality adjustment apparatus measures unevenness based on images of a display state of the display panel that are captured using cameras, and generates correction data for correcting the display unevenness that occurs due to manufacturing variations of the display panel. A feature of the present invention is that the image quality adjustment apparatus includes a plurality of cameras, and an image of a single display panel is captured using the plurality of cameras to obtain unevenness data of the display panel.

    Abstract translation: 提供了一种图像质量调节装置，其能够比现有技术更高精度地测量每个像素的显示不均匀性。 图像质量调整系统包括产生与显示面板对应的校正数据的图像质量调整装置，使显示面板显示测试图案图像的测试图案生成装置和ROM写入器。 图像质量调整装置基于使用照相机拍摄的显示面板的显示状态的图像来测量不均匀性，并且生成用于校正由于显示面板的制造变化而发生的显示不均匀的校正数据。 本发明的特征在于，图像质量调整装置包括多个摄像机，并且使用多个摄像机捕获单个显示面板的图像，以获得显示面板的不均匀性数据。

    UNEVENNESS CORRECTION DATA GENERATION DEVICE
    6.
    发明公开
    UNEVENNESS CORRECTION DATA GENERATION DEVICE 审中-公开

    公开(公告)号：US20240071337A1

    公开(公告)日：2024-02-29

    申请号：US18271594

    申请日：2021-02-04

    Applicant: IIX INC.

    Inventor： Makoto HATAKENAKA ,  Takashi SAKAMOTO ,  Hiroshi MURASE ,  Mitsuo HAGIWARA ,  Hideaki SUZUKI ,  Kazunori YOSHIZAWA

    IPC: G09G5/10 ,  G09G5/02

    CPC classification number: G09G5/10 ,  G09G5/02 ,  G09G2320/0233 ,  G09G2320/0626 ,  G09G2320/0666

    Abstract: An unevenness correction data generation device suppressing the appearance of color unevenness when turning on R, G and B together includes a pattern generation unit causing red, green and blue images, in which display panel subpixels are turned on at the same gray level, to be displayed, a monochrome camera, a control unit generating first red, green and blue luminance correction data based on shooting data of the monochrome camera, a pattern generation unit causing the display panel to display a white image by causing red, green and blue images corrected with the respective luminance correction data to be displayed simultaneously, a color camera shooting the white image in color, and a control unit generating color correction data for correcting color unevenness based on shooting data of the color camera and generates unevenness correction data based on the red, green and blue luminance correction data and the color correction data.

    INPUT SIGNAL CORRECTION DEVICE
    7.
    发明公开
    INPUT SIGNAL CORRECTION DEVICE 审中-公开

    公开(公告)号：US20230162648A1

    公开(公告)日：2023-05-25

    申请号：US17912985

    申请日：2021-02-25

    Applicant: IIX INC.

    Inventor： Makoto HATAKENAKA ,  Takashi SAKAMOTO ,  Yoshihide MINEGISHI ,  Ryohei HATTA ,  Norimasa SENDA

    IPC: G09G3/20

    CPC classification number: G09G3/2074 ,  G09G2330/021 ,  G09G2310/08 ,  G09G2300/0452

    Abstract: An input signal correction device includes an input circuit, extension circuit, degenerate circuit, separation circuit, recovery circuit and delay adjustment circuit that operate at an operating frequency f, demura circuit that operates at an operating frequency f/2, and adder circuit. The extension circuit extends the period of R and B input signals by a factor of 2 and outputs preprocessing signals, the degenerate circuit degenerates a G input signal, the demura circuit corrects preprocessing signals from the extension and degenerate circuits and outputs correction signals, the separation circuit reduces the period of the R and B correction signals to ½ and outputs differential signals, recovery circuit reduces the period of G correction signal to ½ and outputs the same differential signal over two periods, the delay adjustment circuit delays the input and output signals, and the adder circuit adds the differential signals to the delay signals and outputs output signals.

    UNEVENNESS CORRECTION SYSTEM, UNEVENNESS CORRECTION APPARATUS AND PANEL DRIVE CIRCUIT
    8.
    发明申请
    UNEVENNESS CORRECTION SYSTEM, UNEVENNESS CORRECTION APPARATUS AND PANEL DRIVE CIRCUIT 审中-公开

    公开(公告)号：US20190037188A1

    公开(公告)日：2019-01-31

    申请号：US16071461

    申请日：2016-12-19

    Applicant: IIX INC.

    Inventor： Makoto Hatakenaka ,  Takashi Sakamoto ,  Keisuke Okada

    IPC: H04N9/69 ,  G09G3/36 ,  G09G3/3233

    Abstract: An unevenness correction system according to the present invention includes a panel drive circuit provided with a gamma correction circuit that performs gamma correction on an image signal input to an input interface, a gamma correction information acquisition circuit that acquires a gamma correction signal obtained through gamma correction as gamma correction information, an unevenness correction circuit that performs an unevenness correction on the gamma correction signal based on correction data, and an output interface that externally outputs the gamma correction information, and an unevenness correction apparatus provided with a pattern generator that outputs the image signal of a predetermined image to the input interface, and a control unit that generates correction data based on gamma correction information of each individual display panel input to and read by a gamma correction information reading unit from the output interface regarding the output image signal.

    Data Monitoring/Aggregation For Evaluating Connections Between Networks
    9.
    发明申请
    Data Monitoring/Aggregation For Evaluating Connections Between Networks 审中-公开

    公开(公告)号：US20170195132A1

    公开(公告)日：2017-07-06

    申请号：US14985120

    申请日：2015-12-30

    Applicant: IIX, Inc.

    Inventor： Al Burgio ,  Thomas Brian Madej ,  Joseph Blake Gillman ,  William B. Norton

    IPC: H04L12/46 ,  H04L12/751 ,  H04L12/26

    CPC classification number: H04L12/46 ,  H04L41/0213 ,  H04L41/046 ,  H04L41/12 ,  H04L43/0817 ,  H04L45/02

    Abstract: Systems and methods are disclosed for collecting data on traffic paths between networks over an intermediate set of network elements, which may include a Distributed Internet Exchange Platform (DIXP) enabling a peering relationship between the two networks. A set of agents may be coupled with different network elements in the intermediate set from which they may collect data with which the traffic paths may be assessed, monitored, and/or evaluated. The set of agents may report the data to a control-plane module, which may store the data in a centralized database. Additionally, the control-plane module may be operable to generate and/or provision instructions to the agents to control the collection of data and/or the monitoring of traffic paths. The database may include network-topology information from which the control-plane module may identify the traffic paths between the two networks and to which the data may be correlated.

Patent Agency Ranking