To provide a liquid crystal display device capable of improving the detection accuracy of screen freezing and a method for detecting the screen freezing.SOLUTION: A liquid crystal display device 100 includes a liquid crystal panel 20, a liquid crystal drive circuit 30 for driving the liquid crystal panel 20, an LCD power source circuit 40 for supplying electric power to the liquid crystal drive circuit 30, a current monitoring part 110 for detecting the current consumption of the liquid crystal drive circuit 30, and screen freezing detection means for detecting the screen freezing. The screen freezing detection means switches the display of the liquid crystal panel 20 from a first image to a second image and determines the presence/absence of the screen freezing on the basis of a difference between first current consumption when the first image is displayed and second current consumption when the second image is displayed.SELECTED DRAWING: Figure 3

    【課題】 画面フリーズの検出精度を向上することができる液晶表示装置および画面フリーズの検出方法を提供する。【解決手段】 本発明の液晶表示装置100は、液晶パネル20と、液晶パネル20を駆動するための液晶駆動回路30と、液晶駆動回路30に電力を供給するLCD電源回路40と、液晶駆動回路30の消費電流を検出する電流監視部110と、画面フリーズを検出する画面フリーズ検出手段を含む。画面フリーズ検出手段は、液晶パネル20の表示を第1の画像から第2の画像に切替え、第1の画像を表示させたときの第1の消費電流と第2の画像を表示させたきの第2の消費電流との差に基づき画面フリーズの有無を判定する。【選択図】 図3


    Access

    Download


    Export, share and cite



    Title :

    LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR DETECTING IMAGE FREEZING


    Additional title:

    液晶表示装置および画像フリーズの検出方法


    Contributors:

    Publication date :

    2021-10-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G09G Anordnungen oder Schaltungen zur Steuerung oder Regelung von Anzeigevorrichtungen mit statischen Mitteln zur Darstellung veränderlicher Informationen , ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING,... , Vorrichtungen oder Anordnungen, deren optische Arbeitsweise durch Änderung der optischen Eigenschaften des Mediums der Vorrichtungen oder Anordnungen geändert wird zum Steuern der Intensität, Farbe, Phase, Polarisation oder der Richtung von...



    DETECTING IMAGE FREEZING IN VIDEO DISPLAY

    ALFONSO PACHECO | European Patent Office | 2022

    Free access

    LIQUID CRYSTAL DISPLAY DEVICE, IMAGE DISPLAY SYSTEM AND VEHICLE

    TAMANO YASUHIRO / KAWATA SHINJI / NOMAGUCHI YOKO | European Patent Office | 2019

    Free access

    LIQUID CRYSTAL DISPLAY DEVICE, IMAGE DISPLAY SYSTEM AND VEHICLE

    TAMANO YASUHIRO / KAWATA SHINJI / NOMAGUCHI YOKO | European Patent Office | 2020

    Free access


    Liquid crystal display device

    European Patent Office | 2023

    Free access