Sharp unveils a series totalling five industrial standard 7 inch TFT LCDs in the first half of 2010. The spectrum ranges from the robust screens of the more mechanically resilient Strong2 class with extended temperature range from -30 to 80°C to a "light" type LQ070Y3DG3A variant, with an operating temperature of -20 to 50°C which is designed to be more suitable for consumer applications. This display is also available as a touch screen model boasting very good optical properties: with 300 cd/m² it possesses comparatively high brightness and is every bit equal in terms of contrast to its non touch screen sister model. The TFT LCD is also impressively slim, at 7.1 millimetres being only 1.1 millimetres deeper than the variant without the touch screen unit.
In addition to the 800 x 480 pixel resolution, the five new 7 inch industrial displays have their LED-based backlight in common. The principal advantage of LEDs for industrial applications is their extremely rapid responsiveness and good dimming qualities. This makes it easy to control the brightness of the display as a function of the ambient light using photodiodes to automatically adjust the display’s brightness so that legibility remains consistently good even in frequently changing light conditions.A further plus point of LED backlighting is the low voltage, direct current power supply, which reduces EMI behaviour while reducing system complexity since measures to protect against high-voltage can be dispensed with. Operation in areas at risk of explosion is also simplified. With a depth between 6 and 9 millimetres, Sharp’s new 7 inch TFT LCDs have less than half the depth of comparable CCFL variants accompanied by greater mechanical robustness.



