关于这次松下和索尼的4k OLED面板的比较

melfes

在oled-info上看到的几则有关松下的面板的消息：

第一条是展出时提到的：
Panasonic shows a 56" 4K printed OLED TV prototype

Panasonic unveiled a 56" 4K (3840x2160) OLED TV panel prototype that was produced using an all-printing method. Panasonic calls this the "RGB all-printing method" and they say that all the organic materials were deposited using ink-jet printing. Panasonic says that their OLED panels deliver superb image quality, high contrast and fast response rate. The panels are efficient, ulta-thin and light weight. Panasonic considers OLED as a "promising option for next-generation displays".

Panasonic's panel uses a top-emission structure with a transparent cathode, which results in a more efficient panel (Sony's OLEDs use the same structure, this may be Sony's technology). The panel's TFT substrate was supplied by Sony (so it's probably an Oxide-TFT based panel) as part of the two companies collaboration. Interestingly, even though it seems that they use red, green and blue sub-pixels, Panasonic applied a color filter layer as well - to tune the emission color and achieve high color purity and "superb color reproduction".

Ink-Jet printing is a promising manufacturing process to produce OLED panels as it's quick, precise (i.e. enables high pixel densities) and efficient (very little material waste). This kind of process requires soluble OLED materials.

Back in September 2012 it was reported that Panasonic has taken steps to streamline its R&D and put more focus on OLED TV development, with plans to invest ￥30 billion ($385 million) in a pilot AMOLED production line in Himeji (this was already reported in April). It's likely that this new panel was indeed produced in that Himeji R&D line.

Panasonic has been working on OLED printing technologies for quite some time. Back in 2009, Panasonic teamed up with Sumitomo to jointly-develop OLED TVs, based on Sumitomo's P-OLED materials and technology. I don't think this partnership is still active. Sumitomo is building a large P-OLED material factory aiming for OLED TV applications - perhaps this TV uses those materials (although it's also likely that Panasonic is using small molecule soluble materials).

Panasonic is collaborating with Sony on OLED TV panel production technology. Sony just unveiled their own 56" 4K OLED TV prototype, developed together with AUO, and as far as we know is made using an evaporation process.

Source: Panasonic

另外一条是有关松下的姬路面板厂的动态：

Panasonic to convert its Himeji plant to OLED and 4K tablet LCD production

According to Pocket-Lint, Panasonic plans to stop producing LCD TV panels in its Himeji plant, and instead use the fab to produce OLED TVs and 4K 20" tablet LCD panels. Panasonic is using printing technologies to produce its OLED TVs (with some help from Sony, too) - and they're confident their OLED panels will be "significantly cheaper" than what others makers can do.

collaboration.

Back in September 2012 it was reported thatPanasonic has taken steps to streamline its R&D and put more focus on OLED TV development, and earlier it was reported that the company plans to convert a production line in Himeji to AMOLED production (an R&D line at first). Back then Panasonic said they will continue to produce LCD TVs, but now it seems the company will buy its LCD TV panels from a third party, and focus on tablet 4K displays and 4K OLEDs.

A couple of days ago Panasonic unveiled a 56" 4K (3840x2160) OLED TV panel prototype that was produced using an all-printing method. Panasonic calls this the "RGB all-printing method" and they say that all the organic materials were deposited using ink-jet printing.

Panasonic's panel uses a top-emission structure with a transparent cathode, which results in a more efficient panel. The panel's TFT substrate was supplied by Sony (so it's probably an Oxide-TFT based panel) as part of the two companies collaboration.

Source: Pocket-Lint

两次都提到了top-emission和oxide tft，第一次更是提到了虽然是RGB三色OLED结构，但是还是用了color filter，这让人想到了什么？索尼的Super Top Emission！那这么看的话，松下的这个面板和索尼的唯一区别就是印刷和蒸镀，决定成本的关键技术就在这里。

从这个报导来看，OLED的生产的确是难度很大，虽然oxide tft解决了ltps大尺寸化困难的问题，但是oled本身的生产工艺还是很有难度，所以索尼和友达的合作只敢使用现在比较成熟的蒸镀方式生产，而印刷方式虽然成本低，但是由于品控更加有难度，所以也只能放在对产品控制更严格的日本国内进行生产。

蓝翎

估计是各有各的特点。现在是看谁能解决好。这个

问题，谁就在这方面占优。估计就是两年内的事。

最后还是在画质上定胜负。

melfes

蓝翎 发表于 2013-1-12 23:46
估计是各有各的特点。现在是看谁能解决好。这个

问题，谁就在这方面占优。估计就是两年内的事。

都是STE结构，画质最终是没有差别的，台湾劳动力成本低，日本技术先进

友山

蓝翎 发表于 2013-1-12 23:46
估计是各有各的特点。现在是看谁能解决好。这个

问题，谁就在这方面占优。估计就是两年内的事。

大师又说错了，最后不是看画质，还是看谁的成本低，谁更赚钱，劣币驱逐良币是永远不变的定律！

蓝翎

友山 发表于 2013-1-12 23:49
大师又说错了，最后不是看画质，还是看谁的成本低，谁更赚钱，劣币驱逐良币是永远不变的定律！

解决好这个问题就是解决好成本问题。

成本解决了，自然价格就便宜。

大家都能做。价格也就普及啦。

友山

melfes 发表于 2013-1-12 23:48
都是STE结构，画质最终是没有差别的，台湾劳动力成本低，日本技术先进

未来可以看到，LG的白光OLED+RGB滤光片电视的画质低于其它几家的纯自发光OLED或RGB-OLED+RGB滤光片电视...

蓝翎

几年后的事，到时市场在看吧

毕竟是消费能力 的问题。

蓝翎

不过4K太早，没意义，毕竟，

现在还没有4K的节目。传送。

标准的1080P的OLED能上市就可以啦。

melfes

蓝翎 发表于 2013-1-12 23:57
不过4K太早，没意义，毕竟，

现在还没有4K的节目。传送。

当年1080p刚出现的时候也有很多人这么说[s:97]

melfes

友山 发表于 2013-1-12 23:54
未来可以看到，LG的白光OLED+RGB滤光片电视的画质低于其它几家的纯自发光OLED或RGB-OLED+RGB滤光片电视.. ...

WOLED+CF和单纯的RGB OLED还真难说哪个更有优势

蓝翎

melfes 发表于 2013-1-13 00:01
当年1080p刚出现的时候也有很多人这么说

不会的，现在国内信号还没普及

1080P呢。所以4K没用。

日本国内也没有。中国要想普及4K

还早呢，1080P还没普及明白叱。

不定收你们一个月多少钱叱。

melfes

蓝翎 发表于 2013-1-13 00:03
不会的，现在国内信号还没普及

1080P呢。所以4K没用。

国内是国内，目前来看，天朝还没有哪次在标准的推广过程中占据主力的例子

4k最大的问题是片源，但是这个最大的问题伴随着F65 F55等真4k摄像机的普及也势必得到解决，4k BD今年也将开始发行
还有一个我们国内不常见所以一直被忽略的东西，家用主机游戏机，如果下一代xbox和ps能成功支持到4k，那也是4k得以推广的一大利器

AyaneC3

当年蓝光很早就出来了，而且电脑什么的也支持。而4K现在根本没有片源，顶级的PC都跑不动4K分辨率，谈什么？

AyaneC3

melfes 发表于 2013-1-13 00:09
国内是国内，目前来看，天朝还没有哪次在标准的推广过程中占据主力的例子

4k最大的问题是片源，但是这 ...

谁告诉你XBOX PS下代主机支持4K了？你在开玩笑吧，只有1080P而已。

AyaneC3

再说一部4K电影少说也要几百个G 想下载都没门。