Inquiry About Differences Between NHD-4.3-480272FT-CTXL-CTP and NHD-4.3-480272FT-CSXP-CTP Displays

BANOTH BALU

• May 15, 2025 10:38

Dear Sir/Madam,

We have previously used the display model NHD-4.3-480272FT-CTXL-CTP, but we noticed that this part is no longer listed on your website and may have been discontinued.

We found a similar part listed as NHD-4.3-480272FT-CSXP-CTP, and would like to know if this can be used as a direct replacement.

Our key questions are as follows:

1. Are there any hardware or electrical differences between the two models?

2. Are there any changes in the interface protocol (e.g., I2C vs SPI) or in the register configuration?

3. Is the touchscreen controller the same for both displays?

4. Can we use the existing software and initialization code developed for the CTXL version with the CSXP version without modifications?

5. Are there any updates in firmware, driver support, or mechanical dimensions?

We are looking to make an urgent purchase, so a detailed comparison or specification difference sheet would be greatly appreciated.

Note : points 2 ,3 and 4 are very important.

 

 

Thank you for your support.

 

 

 

Best regards,
Balu
Cell: +91 9393954401

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  Engineering Support

  Community moderator

  • May 15, 2025 14:55

  Thank you for the queries that you sent.

  The NHD-4.3-480272FT-CSXP-CTP display is the direct replacement to the EOL display with only the following differences.

  • The typical drive current for the LED backlight driver has increased due to the change in driver IC even though they are reverse compatible. You may not need to change anything on your end but will have an option to increase the brightness if necessary. Please refer to the following transition guide for more information on this transition - https://newhavendisplay.com/content/docs/4.3IPS-TFT_TransitionGuide.pdf

  • There is a change to the Backlight PWM frequency from the range 250 – 1000Hz to 800-10,000Hz. This change will not affect the use case where the backlight is driven at full brightness, it could affect if you are using PWM to modulate the backlight brightness. Please refer to the following engineering change for more information on this change - https://support.newhavendisplay.com/hc/en-us/articles/8580473151767-08-31-22-EVE2-Backlight-Driver-IC-Change

  Even though the displays are compatible, I will still recommend you get a sample display to test for your application to minimize any issues.

   

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  BANOTH BALU

  • May 15, 2025 16:11
  • Edited

  Thank you so much for your detailed reply, Sir.

  We truly appreciate your support.

  We just need a few more clarifications on some critical points:

  1. Can we use the existing software and initialization code developed for the CTXL version with the CSXP version without any modifications?

  2. Are there any changes in the register map or initialization sequences from a programming point of view?

  3. Since we have already developed the software for the CTXL display, will the CSXP version function identically when initialized using the same code?

  Additionally, if the CSXP version requires different initialization or software changes, could you please suggest a display model that is fully compatible with the CTXL version at the software level?

  Your guidance on this will help us proceed confidently with our development and procurement.

  Best regards,
  Balu
  Cell: +91 9393954401

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  Engineering Support

  Community moderator

  • May 15, 2025 21:32

  This query has been addressed through email communication

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