Glass characteristics change requiring single command initialization change for optimal contrast.
Description:
PCN for CFAF320240F family of products due to a change in panel vendors.
Reason:
In order to maintain uninterrupted supply of this module, we changed vendors for the LCD panel so that lead times would not be affected.
Impact:
Because of the slightly different characteristics of the panel, a single command in the initialization of the module should be changed so that optimal contrast can be achieved.
No other changes are necessary.
Recommendation:
Change the following registers from:
write_command(0x001E); // Power Control 5
write_data(0x00B7); // Page 53 of SSD2119 datasheet
to
write_command(0x001E); // Power Control 5
write_data(0x00BE); // Page 53 of SSD2119 datasheet
and contrast should be optimal for the display.
Availability:
Immediately for non-touchscreen modules, with a cut-in for the modules with a touchscreen over the next several months.
Price Change:
Pricing is not affected by this change.
Tech Bulletin #10360
New Product:
CFAF320240F-035T-TS-CB
Date Issued:
August 11, 2011
Summary:
New Product in TFT LCD Modules: CFAF320240F-035T-TS-CB
Description:
Carrier board for CFAF320240F TFT LCD module with Touch Screen. Includes current driver for the LED backlight present on the TFT LCD module.
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