Toshiba Mobile Display developed a 7" LTPS TFT LCD panel that has an integrated in-cell touch panel. The new LCD is only 1mm thick (about 57% thinner than a LCD with an external touch panel) and weights only 225 grams (48% less than an external-touch LCD). The integrated touch panel also reduces the surface reflection ratio by about 10%. This is basically the same technology that Samsung uses in their Super AMOLED displays.
We don't know when TMDisplay plans to actually produce such panels. They will show this technology next month at SID 2011.