Display (continued)

Refresh rate

60 Hz

Operating angle

0° (closed) to 135°

Horizontal viewing angle

±40° (LED) minimum

Vertical viewing angle

+15°/-30° (LED) minimum

Pixel pitch

0.1905 x 0.189 mm

Controls

brightness can be controlled through

 

keyboard shortcuts (see the Dell

 

Technology Guide for more information)

 

 

Keyboard

 

 

 

Number of keys

87

Layout

QWERTY/AZERTY/Kanji

 

 

Touchpad

 

 

 

X/Y position resolution (graphics table

240 cpi

mode)

 

Width

79.7 mm (3.13 inches) sensor-active area

Height

47.7 mm (1.87 inches) rectangle

 

 

Battery

 

 

 

Type

6-cell “smart” lithium ion

Dimensions:

 

Depth

58.23 mm (2.30 inches)

Height

21.5 mm (0.8 inches)

Width

140.6 mm (5. 54 inches)

Weight

0.41 kg (0.90 lb)

Voltage

11.1 VDC

Charge time when the computer is

4 hours

turned off (approximate)

 

Life span (approximate)

300 discharge/charge cycles

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Dell 1428 specifications Display, Keyboard, Touchpad, Battery

1428 specifications

The Dell 1428 is a versatile and robust projector designed for professionals seeking high-quality presentations in various settings. Known for its compact design and portability, the Dell 1428 offers an ideal solution for business meetings, classroom lectures, and on-the-go presentations.

One of the standout features of the Dell 1428 is its impressive brightness, reaching up to 4,000 ANSI lumens. This high brightness level ensures that images and videos remain vibrant and clear, even in well-lit environments. Additionally, the projector boasts a native resolution of 1024 x 768 (XGA), which provides sharp details and vivid colors, making it suitable for displaying detailed graphics, charts, and text.

The Dell 1428 employs DLP (Digital Light Processing) technology, renowned for delivering exceptional image quality and reliability. DLP projectors are less prone to color degradation over time compared to other technologies, ensuring consistent performance. The high contrast ratio offered by the Dell 1428 allows for deeper blacks and brighter whites, enhancing the overall visual experience.

Connectivity is another strong point of the Dell 1428. It includes multiple input options, such as HDMI, VGA, USB, and composite, making it compatible with a wide range of devices including laptops, DVD players, and even smartphones. This flexibility allows users to easily connect their devices and share content seamlessly. Moreover, the projector supports 3D projection capabilities, providing an immersive viewing experience for applications requiring depth perception.

Portability is a crucial aspect of the Dell 1428, weighing in at just over 5 pounds. Its compact design makes it easy to transport, fitting conveniently in a laptop bag. The straightforward interface and intuitive controls further enhance user experience, enabling quick setup and operation.

The Dell 1428 also incorporates energy-efficient features, such as an eco-mode that can extend lamp life up to 5,000 hours. This not only reduces the total cost of ownership but also minimizes environmental impact.

In conclusion, the Dell 1428 projector stands out for its combination of brightness, portability, advanced connectivity, and exceptional image quality. Whether in a corporate conference room or an educational setting, the Dell 1428 provides reliable performance tailored to meet diverse presentation needs.