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February 2010
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In response to the demand for 16:9 format 7in diagonal screens, Sharp Microelectronics Europe has announced a series of five industrial standard 7in tft lcds to be launched in the first half of 2010.
 The spectrum ranges from the Strong2 class, with a 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 (type LQ070Y3DG3B) with 300 cd/m² optical properties. According to Sharp, it possesses comparatively high brightness and is equal in terms of contrast to its non touch screen sister model. The tft lcd is 7.1mm and 1.1mm deeper than the variant without the touch screen unit (LQ070Y3DG3A).
Sharp says that the 16:9 format 7in diagonal screen is emerging as the new standard for numerous portable test, measurement and input devices spanning a wide range of industrial sectors and various consumer applications such as pocket pcs, media players and electronic picture frames.
The five displays all have 800 x 480pixel resolution, and a LED based backlight. Compared with conventional ccfl backlights, one of the principal advantages 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, depending on model, of between 6 and 9mm, Sharp says the new range has less than half the depth of comparable ccfl variants.
The new type LQ070Y3LG4A 7in display is available immediately from Sharp sales offices 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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Author
Chris Shaw
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