def initdetailgroup(self):
        view = QGraphicsView(parent=self)
        brush = QBrush(QColor(242, 242, 242))
        view.setBackgroundBrush(brush)
        view.setFrameStyle(16)  # QFrame.Plain

        def clickEventHandler(event):
            self.detailFigure_2Clicked.emit()

        detailFigure_1 = QGraphicsPixmapItem(
            QPixmap(cwd + '/guiunits/imags/pon56gdemo/detailfigure_1.png'))
        detailFigure_2_Qobj = fadingPic(
            QPixmap(cwd + '/guiunits/imags/pon56gdemo/detailfigure_2.png'))
        detailFigure_2 = detailFigure_2_Qobj.pixmap_item
        detailFigure_2_title = detailFigure_2_Qobj.text_item
        detailFigure_1.mousePressEvent = clickEventHandler
        title = QGraphicsTextItem("Our Innovation/Contribution")
        font = QFont("Nokia Pure Text Light", 25, QFont.Bold)
        title.setFont(font)
        title.setDefaultTextColor(self.nokia_blue)

        textItem1 = QGraphicsTextItem()
        textItem1.setHtml(
            '''<body style="font-family:Nokia Pure Text Light;color:#124191;font-size:23px;">
                          <div >10GHz</div>
                          <div > Optics </div>
                          </body>''')
        textItem1.setTextWidth(80)
        textItem2 = QGraphicsTextItem()
        textItem2.setHtml(
            '''<body style="font-family:Nokia Pure Text Light;color:#124191;font-size:23px;">
                          <div > 10GHz</div>
                          <div > Optics </div>
                          </body>''')
        textItem2.setTextWidth(100)

        fan = Fan()  # a QObject which wraps a QGraphicsItem inside

        scene = QGraphicsScene()
        scene.setSceneRect(0, 0, 1285, 420)
        scene.addItem(detailFigure_2)
        scene.addItem(detailFigure_1)
        scene.addItem(detailFigure_2_title)
        scene.addItem(textItem1)
        scene.addItem(textItem2)
        scene.addItem(title)
        scene.addItem(fan.pixmap_item)

        detailFigure_1.setPos(QPointF(35, 88))
        detailFigure_2.setPos(QPointF(570, 96))
        detailFigure_2.setOpacity(0)  # hided at first
        detailFigure_2_title.setPos(QPointF(750, 46))
        detailFigure_2_title.setOpacity(0)
        title.setPos(QPointF(50, 20))
        textItem1.setPos(QPointF(40, 168))
        textItem2.setPos(QPointF(361, 168))
        fan.pixmap_item.setPos(QPointF(456.5, 138))
        self.fanAnim = fan.fanAnimation()

        view.setScene(scene)
        view.setSceneRect(0, 0, 1285, 420)
        view.setAlignment(Qt.AlignLeft | Qt.AlignTop)
        view.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
        view.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
        view.setRenderHint(QPainter.Antialiasing)

        self.detailGrpTextItem1 = textItem1
        self.detailGrpTextItem2 = textItem2
        self.detailFigTitle = title
        self.detailFigure_2_title = detailFigure_2_title
        self.turbofan = fan
        self.NNfigure_fadeIn = detailFigure_2_Qobj.fadeIn()
        self.NNfigure_fadeOut = detailFigure_2_Qobj.fadeOut()
        self._detailFigure_2_state = 0  # 0-hided, 1-showed
        return view