The New Characteristics of the Display

Published:2011/9/19 3:18:00 Author:Li xiao na From:SeekIC

The displays needed by designers are required to offer excellent optical performance and can overcome different kinds of hard environment. All these requirements will drive the development of the related technology.

The latest display technologies are always used in high volume consumer market sectors. However, some display manufacturers are investing in and developing displays specifically for applications requiring improved optical performance, high reliability and product longevity. For example, the TFT display is developed by Hitachi.

Many user interfaces demand for wide viewing angle and wide field of vision displays. Contrast and colour characteristics must be maintained over a wide range of viewing angles and positions. Viewed from an acute angle, a conventional TFT display can exhibit a loss of brightness which can result in a reduction in contrast and the display image inversion. However, wide viewing angle technologies, such as IPS and VA, are expensive. They only can be used in the smart phones, monitors and televisions.
In-plane switching and vertical alignment TFT display modules can provide a stable colour image from any viewing angle, excellent colour saturation, colour stability and high contrast ratios.

The characteristics of lifetime are very important for LED. It is estimated that its lifetime is between 50,000 to 100,000 hours. Scrutiny of manufacturer’s data sheets is necessary to determine exactly how the LED lifetime is being specified. The LED backlight lifetime is less affected by operating temperature which is essential for ensuring a reliable, maintenance-free display installation in a high reliability application; therefore, display manufacturers will often use the same LEDs in backlight units.

What is more, the physical characteristics of the display are essential. Ease of mounting the display securely within a mechanical housing or fixture is paramount. The internal construction of a rugged display can be used to manage the shock and vibration in a harsh and extreme application.

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