看来我的怀疑是没有错的，Z9G没有背光大师是被实锤了的，虚假宣传是真的

dickman

https://www.flatpanelshd.com/review.php?subaction=showfull&id=1559201058


原文：
As discussed in the calibration section, and shown in the measurements section, Sony Z9G can hit a maximum of 3000-4000 nits peak brightness but only in very special situations. Put a checkerboard pattern (8 white squares, and 8 black squares) on it and it hits "only" 1025 nits peak brightness, while black rises to 0.23 nits in the center of the black square and 0.45 nits along the edges. This was in 'Custom' mode. While this may sound technical, it is really quite simple. LCD TVs rely on a backlight and Z9G has zone dimming so as brightness goes up, so does black levels in adjacent areas. These extreme peak brightness levels are an example of quantity over quality because all of that light cannot be tamed and applied in small segments of the picture - where it is most relevant - due to limited backlight control. We counted a total of 720 dimming zones (36 horizontal, 20 vertical). Sony declined to confirm/deny but it should be in the ballpark. In other words, each single dimming zone covers 46080 pixels. Sony explained that 'Backlight Master Drive' in Z9G is a little different from the original implementation in Z9D where each LED could be controlled individually. Z9G operates its backlight unit in "segments".

• We counted a total of 720 dimming zones (36 horizontal, 20 vertical). Sony declined to confirm/deny but it should be in the ballpark. In other words, each single dimming zone covers 46080 pixels. Sony explained that 'Backlight Master Drive' in Z9G is a little different from the original implementation in Z9D where each LED could be controlled individually. Z9G operates its backlight unit in "segments".
• flatpanelshd测量出85Z9G有720个背光区域，索尼拒绝确认/承认，但这应该是个大约接近的数值（文森特也测的这个数）。换句话说，一个背光区域覆盖了46080个像素。索尼解释说“动态背光大师”在Z9G上和在最初的Z9D上是不一样的，Z9D可以独立点亮每个LED灯，Z9G是点亮一个区域
  

同样的方法可知，凡是亮一个分区的，比如65 75z9d，其实都没有背光大师
有人怀疑98Z9G也没有，尚不清楚，但可以肯定的是65 75 85寸的 Z9D/Z9G是真的没有这个动态背光大师版了








建议买以上型号的去告索尼欺诈消费者

王京华勋

不会的。索尼每次发布的产品宣传都是经过严格推敲的，以索尼如此大的跨国顶级电子企业，不可能搬起石头砸自己的脚，搞虚假宣传（赔不起），近100年的企业，信誉、品质是企业的生命，这是基本常识，索尼应该知道。如果虚假宣传，糊弄全球人民，我想不太可能。再就是，以如此高的价格销售Z9G，远超其他液晶，应该不会虚假。我买过多款索尼产品，没有发现什么假货。同是索尼产品，一分钱一分货，贵有贵的道理，相比普通液晶，Z9G全面超越，这一点不容置疑，比之OLED，除了画面质感稍有一点点差距（不大），其余包括亮度、色彩、寿命等都比OLED好。实际观看中，四角没有任何发暗发灰，动态超好，黑色表现让人信服，除了少数字幕有轻微的光晕，其余绝大多数基本上看不出有明显的光晕，对比度、层次、暗处细节几乎无可挑剔。当然，液晶漏光是天生的，在Z9G上也不例外，只是在其上面降到了最低，在不与高端OLED现场对比的情况下，其黑位表达还是非常不错的。

41068482

z9d集束灯泡其实不一定是对的

南山老人

想要点对点背光，直接上OLED就是了，不必纠结

av-rgb

干脆4klcd屏幕后面放同等尺寸2k等离子，一对四背光。

whindson

索尼自己的技术，解释权在索尼自己。
再说人家也没宣传动态背光大师版到底是个啥，分区多少，背光控制能到多少，别动不动就告