Toshiba Mobile Display (TMD) has launched a touchscreen LCD panel, which is 7” wide and has a resolution of 1024x600 pixels. The liquid crystal cell is integrated with a capacitive multi-touch input feature.
Toshiba Mobile Display LCD panel
According to Toshiba, the technology eliminates the need for adding additional touch panel to the LCD. This technology was first intended to cater to industrial and vehicle mounted applications, but could be extended to mobile products as well.
The panel is made up of thin film transistors and pixel electrodes, fused by using low-temperature poly silicon technology. The circuit thus formed is highly sensitive to electrostatic capacitance changes between the object touching the display and the electrodes.
TMD claimed that its latest panel is 57% thinner when compared to conventional LCD display panels and weighs only 225 g, which is almost half the weight of the existing models. In the new LCD panel, the surface reflection ratio is also reduced by 10%. In order to block any signal interference in the panel, the company has designed a sensor circuit with an amplifier circuit between the pixels. This arrangement enables accurate transmission of signals outside the panel, thereby increasing sensitive responsive touch panel operation.
Toshiba’s new technology will be showcased at SID 2011, which will be held at Los Angeles between 17th and 19th of May, 2011.