LCD PANELS

LCD panels are available in segment, character and graphic. The more complex versions like graphic are available in COG or TAB technology. Each technology is explained below.

Segment
Especially for low cost, low profile, low power concumtion and/or customized products, segmented panels are popular by OEM customers.

The panels are easy to drive and very low cost. Available in many versions and shapes as standard or custom. For custom solutions, the panel can be devided in areas that are:

- color coded
- dot matrix and segment
- touch integration
- pin connection

Typical applications are in clocks, radios, elevators, calculators, heating systems, home weather stations and general sign applications.

Dot matrix
For more detailed and flexible information, a dot matrix panel is very suitable. Disadvantages are that the driving is more complex and the panel is higher in price. Dot matrix panels are available as character and graphic types.

Character
Panels with conroller on board that only display characters are available with and without backlight. EL backlights are still popular for ultra low profile solutions. LED backlights are popular for their long lifetime. LED backlights are always in a housing that can be ordered with mounting holes. Driving IC's are integrated on the glass and relatively easy to interface. The COG (Chip On Glass) types have either a pin connection or a flex tail.

 

Graphic
To obtain full flexibility, full graphic displays are the best solution. When controller/driver IC's are integrated, the displays are easy to connect to a board that is developed by the customer. The flexible tail is ready for connector on the customer's board.