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1. Tft displays how to#
2. Tft displays manual#

Manual adjustment is possible but rather impractical for the user. Since the contrast of any LCD is dependent on the temperature, a special temperature-compensation circuit is needed in order to use the entire temperature range, and this is particularly true for high-temperature displays (-20 to +70☌). In this case, however, additional supply voltage is generally required. High-temperature displays are designed for operation in the range from -20 to +70☌. Standard LCDs have a temperature range of 0 to +50☌. Below you can see the EAP162-3N display with different types of lighting by way of example: *) life time depends on ambient temperature and LED current However, the lighting also determines the optical impression made by the display, and the display mode blue or yellow-green – does not always have an influence. CFL inverter required - Lifetime 10,000-20,000 hours EL inverter required - Lifetime 5,000-10,000 hours - Not very bright Green-yellow color - Uneven and not very bright as a light pipe Low-power - Very flat - Different colors available 5V= supply - Lifetime 100,000 hours - Very bright (light box) Here is a brief overview to clarify the situation: However, since there are basically four different types of lighting, the type selected depends very much on the application. LCDs without lighting are hard to imagine these days. This twists the plane of polarization of the light by another 90°, for example: The analyzer prevents the light getting through, and the LCD thus becomes opaque. If a specific voltage is applied to the metallic film coating, the crystals rotate in the liquid. In the idle state, the liquid twists the plane of polarization of the incoming light by 90° so that it can pass the analyzer unhindered. Another foil must be applied to the bottom glass plate, but this time with a plane of polarization twisted by 90°. To obtain polarized light, you apply a polarization foil, the polarizer, to the bottom glass plate. The glass plates are thus each coated with a very thin metallic film.

This effect is influenced by the creation of an electrical field. The special attribute of this liquid is that it rotates or “twists” the plane of polarized light. An LCD basically consists of two glass plates with a special liquid between them. LCD is the abbreviation for liquid crystal display. This is how the switch from EA DOG to OLED successfully.

Tft displays how to#

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