IEC_61747-6-2-2011_cor1-2012.pdf

January 2012 Janvier 2012 IEC 61747-6-2(1st edition 2011)Liquid crystal display devices Part 6-2:Measuring methods for liquid crystal display modules Reflective type C O R R I G E N D U M 1 Figures 11 and 12 Replace existing Figures 11 and 12 by the following new figures:Front view Top view Side view Gloss trap Receiver slit AABIEC 040/12 Figure 11 Hemispherical illumination with gloss-trap(GT)opposite to receiver inclination Cross section A-A Revolution B I I1 0 90 0 90 0 180360 10IEC 041/12 Figure 12a Measured luminance as function of Figure 12b Measured luminance as function of Figure 12 Normalized illuminance at the location of the measuring spot 5.1.3 Measuring method Replace existing items a)to d)by the following new items,so as to include the procedure for determining the WWS reflectance:a)Select one of the standard measuring systems.b)Place the WWS at the position where the DUT will be placed for subsequent measurement and measure Rw(January 2012 Janvier 2012 c)Place the DUT at the correct measuring position.d)Supply the signals to the device so that the contrast ratio is maximised to the full WHITE conditions.Then measure the DUT at position p0(the centre of the active area of the display)to obtain tristimulus values;Xon,Yon,Zon.e)Supply the signals to the device to the full BLACK conditions.Then measure the reflectance R0 at position p0 to obtain tristimulus values;Xoff,Yoff,Zoff.f)Determine reflectance of the full WHITE;Ron as Yon,and reflectance of the full BLACK;Roff as Yoff.5.4.3 Measuring method Replace existing items a)to d)by the following new items,so as to include the procedure for determining the WWS reflectance:a)Place the WWS at the position where the DUT will be placed for subsequent measurement and measure Xwws,Ywws,Zwws.Use the measurement data for calibration of the LMD,or for subsequent correction of the measured data.b)Position the DUT at position p0(the centre of the active area of the display)and supply the maximum value of the colour input-signals of the primaries R(red),G(green)and B(blue)simultaneously to the device.Next,maximise the contrast ratio at this value of the input primaries.Then measure the DUT to obtain tristimulus values;Xon,Yon,Zon.c)Place the DUT and supply the signals to the device to the full BLACK conditions.Then measure the position p0 to obtain tristimulus values;Xoff,Yoff,Zoff.d)Supply the signals of any intermediate(grey)states,if required.Then for n intermediate states measure the position p0 to obtain tristimulus values Xg1.Xgn;Yg1.Ygn;Zg1.Zgn.e)Finally separately supply the maximum R-data input-signal to the device,with data input of the complimentary primaries set to minimum or zero,and measure the red colour tristimulus values;XR,YR,ZR.f)In the same way measure the green and blue colour tristimulus values;XG,YG,ZG,and XB,YB,ZB respectively.5.5.4 Evaluation and representation Replace Equation(22)by the following new equation:R(ED-i)=R(std)x L-i(DUT)/L(std)(22)5.6.4 Evaluation and representation Replace Equation(23)by the following new equation:R(ED-i)=R(std)x L-i(DUT)/L(std)(23)Replace Equation(24)by the following new equation:RX/Y/Z(ED-i)=RX/Y/Z(std)x LX/Y/Z-i(DUT)/LX/Y/Z(std)(24)January 2012 Janvier 2012 CEI 61747-6-2(1re dition 2011)Dispositifs daffichage cristaux liquides Partie 6-2:Mthodes de mesure pour les modules daffichage cristaux liquides Type rflexible C O R R I G E N D U M 1 Figures 11 et 12 Remplacer les Figures 11 and 12 existantes par les nouvelles figures suivantes:Vue de face Vue de dessus Vue latrale Pige brillant Fente rceptrice AABIEC 040/12 Figure 11 Eclairement hmisphrique avec pige brillant(GT gloss-trap)du ct oppos linclinaison du rcepteur Section transversale A-A Rvolution B I I1 0 90 0 90 0 180360 10IEC 041/12 Figure 12a Luminance mesure en fonction de Figure 12b Luminance mesure en fonction de Figure 12 clairement normalis lemplacement du point de mesure 5.1.3 Mthode de mesure Remplacer les points a)d)existants par les nouveaux points suivants,de faon inclure la procdure pour la dtermination du facteur de rflexion dun talon de travail du blanc(WWS-Working White Standard):a)Slectionner lun des systmes de mesure normaliss.b)Placer le WWS dans la position o le DEE sera plac pour une mesure effectue ultrieurement et mesurer Rw(January 2012 Janvier 2012 c)Placer le DEE dans la position correcte de mesure.d)Appliquer les signaux au dispositif de faon ce que le rapport de contraste maximal soit obtenu dans des conditions de BLANC satur.Mesurer ensuite le DEE la position p0(le centre de la zone active de lafficheur)de manire obtenir les composantes trichromatiques;Xon,Yon,Zon.e)Appliquer les signaux au dispositif de faon obtenir des conditions de NOIR satur.Mesurer ensuite le facteur de rflexion R0 la position p0 permettant dobtenir les composantes trichromatiques;Xoff,Yoff,Zoff.f)Dterminer le facteur de rflexion du BLANC satur;Ron en tant que Yon;et le facteur de rflexion du NOIR satur;Roff en tant que Yoff.5.4.3 Mthode de mesur