Newhaven Display Forum

Newhaven Products => TFTs => Topic started by: l_pochhi on April 27, 2017, 05:09:36 AM

Title: NHD-5.0-800480TF-ATXL# Display timing
Post by: l_pochhi on April 27, 2017, 05:09:36 AM
We are using NHD-5.0-800480TF-ATXL#  for our product.
Our hardware interface is as follows:
1. We are using LVDS port from Linux Board (Gatewoeks GW5400 with Ubantu). It has TX0, TX1, TX2 and CLK balanced lines.
2. We are using DS90C364 for converting LVDS to RGB connection of the Display.
3. R0,R1, G0,G1, B0,B1 are at logic zero, because it provides 666 output.
 
We have made the timing settings as per your datasheet.
 
clock-frequency = <40000000>;
hactive = <800>;
vactive = <480>;
hback-porch = <88>;
hfront-porch = <40>;
vback-porch = <32>;
vfront-porch = <13>;
hsync-len = <48>;   /// Tested with 1 , 10 and 24 also
vsync-len = <3>;

But we are not getting the proper display.

Please suggest proper timing parameters

Best regards

The Display is attached herewith
Title: Re: NHD-5.0-800480TF-ATXL# Display timing
Post by: Saurabh_B on April 28, 2017, 04:56:35 PM
Hello,

Can you tell me what the date code on the display is, or if you could please provide a picture of the back of the display?
Title: Re: NHD-5.0-800480TF-ATXL# Display timing
Post by: l_pochhi on April 29, 2017, 02:53:56 AM
Dear saurabh

please see back side view.

Best regards
Title: Re: NHD-5.0-800480TF-ATXL# Display timing
Post by: kroysoft on July 05, 2017, 08:06:41 AM
Hello,

I'm Charles. I bought the same type of display a few days ago, and I'm facing almost the same problem here. There are only three small differences with my display, however:

1. I'm using almost the same timing as above, except the clock which is set to 35.88MHz to achieve 75Hz refresh rate. (I tried with other clocks, by the way, but with the same result as below)
2. the "shifting" of the visible area in my case is not to right with (how many pixel, I can't see on the attached picture :) ) but left and only 4 with pixels. Playing around with 'HS front porch' I do can change the shifting itself in any direction, but in steps of 8 pixels, so I simply can't set the proper position!
3. I'm using a HDMI-TTL converter IC from texas: the TFP401a for signal conversion.
+1 I'm using DTDCalculator to do the "timing magic" under Windows 10 on a compute stick with HDMI output.

My display got these number on it's back (hope it helps): 500444_3216 NHD-5.0-800480TF-ATXL#-T_rev14

Thanks for any advice!