The ‘Autobright+’ sensor board (pictured) changes LCD contrast and black-level to preset levels according to ambient light conditions. It also recognizes RS-232 commands for remote control of these settings. This kind of setting adjustment is useful for low light conditions.
It is an example of one of the many add-ons and product extensions that add value to a display system.
In the commercial and professional market display systems differ in many significant respects and are far from the commoditization of the consumer monitor market. The differences are both external and internal:
- Panel choice: Brightness and temperature range are two obvious and significant factors as well as color, resolution, viewing angle and even shape.
- Enclosure design: Size, shape, ruggedness and controls.
- User interface: Very likely to be quite different with presets for specific functions, different type of controls such as a joystick or remote activation.
- Signal inputs: Aside from standards such as HD-SDI there are many custom signal requirements.
- Power supply: Especially in transport and industrial equipment display systems are likely to have different power supply requirements.
- Environmental: Resilience against dust, humidity and other that require conformal coated electronics.
- Compliance: A major factor can be the specific compliance requirements for a market application such as for medical or commercial marine.
- Lifetime & Lifecycle: Not just operating lifetime but also the production lifecycle of the components – we often have to supply the same LCD controller for over 5 years.
The above are just some headline differences but provide a clear indication how many permutations of display system design there can be to meet different niche market requirements. It is an exciting market with considerable scope for creativity and innovation.
The inside of a normal LCD monitor or TV is pretty straightforward as this diagram shows: