DS90UB928Q-Q1: DS90UB927 and DS90UB928 Screen repeatation

Bhanu Prasad Reddy Buchupalli

Part Number: DS90UB928Q-Q1

Dear All,

I have a target board from a external vendor,which i can't open is equipped with DS90UB927 Serializer.I am trying to display the data of 800X480 resolution using DS90UB928 and Hannstar HSD100PXn1(1024 X768).The display is repeating the same display two times.Iam not able to figure out the cause.

over 6 years ago

0 Charley Cai over 6 years ago

TI__Genius 12866 points

This looks like the display thinks that the incoming resolution is 1024 x 768. The first color bar image is 800 x 480. The black space is blanking period, and the second half color bar fills the image to 1024 pixels.

If you want the color bar to fill the entire screen, you would have to either
1. Get a screen that is 800 x 480 resolution.
2. Or check the current display spec to see it can adapt 800 x 480 resolution
3. Or input a 1024 x 768 image.

Best Regards,
Charley Cai

0 Bhanu Prasad Reddy Buchupalli over 6 years ago in reply to Charley Cai

Prodigy 180 points

Thanks

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DS90UB928Q-Q1: DS90UB927 and DS90UB928 Screen repeatation