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LG. Phillips LCD finds new method of developing flexible electrophoretic screens using oil and water

LG. Philips LCD Company has recently applied for a patent on a flexible electrophoretic display technology that would use oil and water to produce images.  This comes from a need to produce a flexable display cheaper than flexible OLEDs.

The major problem with current OLED flexible technology is that it must be made at a higher temperature than the melting point of the plastic substrate, so it must first be produced on glass.  This process increases the cost and time and also decreases the number of defect-free displays.

The company claims that the new displays are designed by placing oil and water in tiny plastic cells connected to plastic electrodes.  According to the patent, the display is comprised of a reflective electrode formed on the first substrate, along with a transparent insulation layer having a predetermined color.  The second substrate consists of an electrode.  In between the two is an electrolytic layer formed of water and a nonelectrolytic layer formed of oil.

The patent also states that the image is displayed as a result of the movement of the electrolytic and nonelectrolytic layers. When an electric field is applied between the reflective electrode and the opposing electrode, the electrolytic layer moves to the lower side of the opposing electrode, and the nonelectrolytic layer moves to the lower side of the black matrix, so that an image may be displayed through the electrolytic layer.

LG. Philips was one of the first to develop the 14.1-inch e-paper that is able to produce 4,096 colors.  The company also bragged development of a 4-in flexible LCD with a resolution of 320x240 pixels.

LG. Philips did not release any information on manufacturing date or release.  It has only filed a patent for this technology at this juncture.  No images of the new technology are currently available.



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correction
By Hawkido on 7/30/2007 5:05:05 PM , Rating: 2
quote:
LG. Phillips has released any information on manufacturing date or release. It has only filed a patent for this technology at this juncture.


Shouldn't that be:

quote:
LG. Phillips has not released any information on manufacturing date or release. It has only filed a patent for this technology at this juncture.




RE: correction
By KristopherKubicki (blog) on 7/31/2007 11:47:57 AM , Rating: 2
We corrected that. Our apologies.


RE: correction
By Hawkido on 8/1/2007 11:41:56 AM , Rating: 2
hey, can you change the posting system so we can point out corrections and/or errors, then once you correct the items, remove our post... you know just make a post with corrections at the title, then you guys read it, decide if it needs correcting, take what ever action is needed then remove our corrections post. That way you guys can get the atricle out pronto, and in the first 30 seconds to a minute the corrections will be pointed out and fixed, then the corrections line can be eliminated.


Correction
By zzatz on 7/30/2007 9:52:10 PM , Rating: 2
Philips, not Phillips. Makes me wonder what else the writer garbled.




By DisplayGuy on 7/30/2007 9:54:41 PM , Rating: 2
Other than getting the fact that LG Philips files lots of display-related patents, about everything else in this post is wrong or missing major points
* The patent application is note about an OLED, but an electrowetting display
* Electrowetting displays are currently under development by a Philips (Netherlands) spinoff Liquavista
* OLED displays have been made on plastic by Sony
* The picture in the post is of a Fujitsu cholesteric liquid crystal panel

Do a little fact checking next time...




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