Quarter-VGA LCD offers high quality interface

A new quarter-VGA liquid-crystal colour display panel offers a cost-effective route to adding a very high quality user interface to a wide range of products

Available now from Densitron Europe is a quarter-VGA liquid-crystal colour display panel that offers a cost-effective route to adding a very high quality user interface to a wide range of products.

These include consumer devices such as internet phones, and more specialised products such as medical monitors where quality, clarity and ease of readability of the display are paramount.

The CLC-320240-DTN6 panel offers a viewable area of 118 x 89.3 mm with resolution of 320 x 240 RGB pixels (1/4-VGA).

It is provided with interface connections to row and column drivers, for direct connection to one of the many microcontrollers or microprocessors that incorporate a suitable LCD controller.

The display mode is RGB colour, transmissive FSTN, and the module incorporates a single CCFL (cold-cathode fluorescent) tube backlight for maximum viewability in a wide range of ambient lighting conditions.

A wide viewing angle further contributes to the quality of the display The overall dimensions of the panel are 154.6 x 114.4 mm, yielding an excellent ratio of display area to overall size; building the module into an end product is greatly assisted by the depth of only 8.5 mm.

This dimension is made possible by the use of the latest construction techniques and selection of low-profile driver components.

The overall dimensions and fixing locations are common to a number of earlier 1/4-VGA panels, allowing for ease of replacement or upgrade in existing products.

The module requires a 5V logic supply and a 26.2V LCD bias supply and at a typical frame rate of 70 Hz will have a current demand of 2.7 mA from the 5V line, and 7.5 mA from the 26.2V line.

The use of high-quality colour displays in products such as IP (internet-protocol) video telephones is set to rise very sharply as these devices become more widespread in the coming months, and the CLC-320240-DTN6 will become a firm favourite of designers in those sectors.

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