Double-faced Touch Panel Display Debuts

Aug 29, 2008
Takuya Otani, Nikkei Electronics
Fig 1: A touch panel display that can be operated by touching either side of the panel
Fig 1: A touch panel display that can be operated by touching either side of the panel
[ If it clicks, the expanded picture will open ]
Fig2: An example of a game played by two users facing each other. It is possible to see the fingers of the opponent.
Fig2: An example of a game played by two users facing each other. It is possible to see the fingers of the opponent.
[ If it clicks, the expanded picture will open ]

Teraokaseiko Co Ltd exhibited a touch panel display that can be operated by touching either side of the display at Sign & Display Show 2008, which is taking place from Aug 28 to 30, 2008, at Tokyo Big Sight (Fig 1).

The display was made by attaching a resistive touch panel to the both sides of a transparent inorganic EL panel developed by Teraokaseiko.

The company expects the display will be used as follows.

- When mapping software is being used, users can touch the back side of the display to operate it without hiding a part of the map with their fingers. They can see both the entire map and their fingers moving behind the display.

- The display recognizes the movement of "pinching," in addition to other finger movements such as tapping and sliding.

- Two users facing each other can play a game by using both sides of the display (Fig 2).

The pixel count of the inorganic EL panel is 256 × 120. It is an orange monochrome display. The light transmittances of the inorganic EL panel and the touch panel attached to it are both 80%. And, as a whole, the display has a transmittance of 51.2%.