Standard size for industrial displays
09 February 2010
Sharp unveils range of industrial displays with 7in diagonal screen and LED backlighting.
The 16:9 format 7in diagonal screen is emerging as the new standard for numerous portable test, measurement and input devices spanning all industrial sectors – logistics, transport, medicine, vehicle manufacturing and repair, the hotel trade and catering – and various consumer applications such as pocket PCs, media players and electronic picture frames.
To cover the entire range of applications, Sharp is unveiling a series of five industrial standard 7in 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°C to 80°C to a ‘light’ type LQ070Y3DG3A variant, with an operating temperature of -20°C to 50°C which is designed to be more suitable for consumer applications. This display is also available as a touch screen model (type LQ070Y3DG3B) boasting 300 cd/m². The TFT LCD is also slim, at 7.1 millimetres being only 1.1 millimetres deeper than the variant without the touch screen unit (LQ070Y3DG3A).
In addition to the 800 x 480 pixel resolution, something the five new 7in industrial displays have in common is their LED-based backlight. Compared with conventional CCFL backlights, one of the principal advantages of LEDs for industrial applications is their extremely rapid responsiveness and 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.
The LQ070Y3LG4A 7in display is available immediately from Sharp and distribution partners in Europe. The two ‘Light Industrial’ LCDs (LQ070Y3DG3A, LQ070Y3DG3B) and the Strong2 variant (LQ070Y3LG1C) will follow at the end of Q1/2010 and the ASV model (LQ070Y3LW01) will be available from the end of Q2/2010.
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