CurtPalme.com Home Theater Forum

WanMan · Joined: 19 Mar 2006 Posts: 10270

Oh no, we just been had. Mitsubishi just went all nuts on us with OLED. They told us to take our plasma and LCD trash and go home after introducing their 149" OLED flat panel.

**Curt Palme** · Posted: Sat Jan 30, 2010 1:33 pm Post subject:

I wonder why they didn't show this at CES? Heard nothing about it, and people would have been all over it.

WanMan · Joined: 19 Mar 2006 Posts: 10270

The strange thing is that this isn't from the USA division, which is mainly responsible for flat-panel and projection systems in the USA. Maybe the idea of shipping this thing successfully to the USA CES show wasn't deem worthy enough.

WanMan · Joined: 19 Mar 2006 Posts: 10270

No wonder they didn't show this at CES: "A screen resolution of 1088 pixels x 640 pixels" This is only good for pseudo-billboard applications. This makes the pixels 3mm x 3mm. Someone with 20/20 vision couldn't be within, say, 14-15 feet or they would see bad pixel structure.

This is really strange. I thought up until this press release the previous examples of OLED flat panels were all small. I attributed this mainly to the analogous of early LCD in flat panel technology, which had an early problem in making larger pixels. Yet this seems to have proven that assumption wrong.

I suppose if you turn this thing on its side, add two more like it you could get a decent 1920x1088 display. That would make it ~130" tall by 219" wide. Damn, put that into my house and I might start getting an IMAX experience as a display wall. Very Happy

Spanky Ham · Joined: 22 Mar 2006 Posts: 5643 Location: Comedy Central

OLED always seems to be 3 years away. At this point, I would just like to see a good OLED for notebooks. I don't have any hope that this will ever be an alternative to LCD and Plasma.

cmjohnson · Joined: 03 Apr 2006 Posts: 5180 Location: Buried under G90s

It's just a matter of time before high resolution, high density LED displays enter the marketplace. With conventional LEDs being readily available for years in the 0603 SMT package size, it's just a matter of choosing to package RGB emitters into package even smaller than that, or more likely, build chip-on-board modules consisting of several hundred pixels and tile them together. RGB densities of greater
than 1 pixel per millimeter are easily possible. And since these would NOT have to be high output, thermal management wouldn't be a problem.

No LED would ever have to be brighter than the surface brightness of an adequately bright projected image. Fractional lumen values. Piece of cake.

4K displays would likely be very feasible, that are no larger than the screens in most CRT enthusiasts' home theaters.

CJ

WanMan · Joined: 19 Mar 2006 Posts: 10270

CJ, are you talking about LED as a direct sub-pixel implementation? I thought the limitations due to attendu presented a major difficulty in use for front projection lamps (I had suggested this back in 2001-2002 on AvS). I'd imagine the same was being held true for direct use as a sub-pixel.

I always considered LED use in flat panels as nothing more than a flood-illumination. How would you columnate the grossly uncolumnated light coming off the LED itself? I would also imagine that this potentially might introduce a rather narrow field of view (after columnation).