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Documents What details should I pay attention to when selecting LCD glass?
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  • Author Author: Former Member
  • Date Created: 26 Jun 2010 7:19 AM Date Created
  • Last Updated Last Updated: 7 Oct 2021 6:03 AM
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What details should I pay attention to when selecting LCD glass?

Life and lead time.

Many TFT displays are manufactured  for particular projects. And they may be end-of-life’d before you finish  your design. This is especially applicable to LCD modules with built-in  graphics controllers. Ask the glass manufacturer about production  timeframes before including the LCD in your design.

 

Connector type. Verify it is possible to buy the  connector for the glass.

 

Initialization. Some glasses must be initialized after  each power-on cycle. Check the LCD connection diagram. If it has SPI  signals, most likely the LCD has control registers inside that must be  programmed. To get the highest image quality, request initialization  register values from the glass manufacturer. These values may be unique  for each LCD part number.

 

Additional circuits. Additional components influence  the cost of your product. Check how many voltages must be supplied to  the glass. If the glass connector has a VCOM signal, most likely the  external VCOM level shifter circuit is required. 

 

Backlight. Pay attention to the backlight type. LED  backlights may require an LED driver circuit. CCFL backlight uses an  expensive and noisy inverter. Determine how easy it is to buy the  inverter with parameters specified in the glass datasheet.

 

Colibri Graphics 2010,

http://www.colibrigraphics.com/

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