Touchscreens are a kludge. For the most part they consist of a touchscreen laid over a display. It works, but it adds an extra layer of complexity and weight to any device that uses one. Samsung says it will begin mass producing a 3.3-inch AMOLED WVGA panel for mobile devices this March, which effectively merges the touchscreen into a single device.
An AMOLED is an incredibly thin LED screen, with brightness nearing that of LEDs, and which has no need for backlighting. What Samsung has done is place the touch sensor onto the display, making them one in the same. (The touch sensor is 0.001 mm thick.) This single-piece device is not only less complex, it’s lighter and thinner.
According to Samsung, “Through mass production, we want to make this touch embedded AMOLED panel number one in the LCD and AMOLED market. Also, we want to mass produce touch screens and construct a system so that we can expand the display market.
For the consumer this means thinner, lighter phones. Or, if the clan at Engadget get their wish , bigger batteries for the phones we already have.