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Forum Topic - Colors displayed faded in LCD screen: (3 Items)

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Lakshminarayanan R

07/06/2009 8:28 AM

post33156

Colors displayed faded in LCD screen

I'm booting QNX in my target and displaying few screens with diferent colors. I have a LCD 6" panel display in my target
. Parallely, I have connected the output to a LCD monitor. The color in the LCD panel is displayed faded as compared to 
that displayed in the monitor.

What could be the possible reason? Should I configure some settings in my target?

Lakshminarayanan R

07/09/2009 6:30 AM

post33450

Re: Colors displayed faded in LCD screen

Adding more inputs,

The LCD 6" display is 18-bit LVDS interface. In display.conf file, I see that the pixel_format is set to rgb565 which 
when summed up gives only 16bits.

I changed this rgb565 to rgb666 in display.conf file and rebooted the system. The system didn't boot up. It hangs at 
starting run commands.

How can I configure the display.conf to  support 18bits??

Lakshminarayanan R

07/10/2009 6:12 AM

post33514

Re: Colors displayed faded in LCD screen

I find from io-display doumentation that the disp.conf file supports only these pixel formats : 
pal8 -- 8 bpp 
argb1555 -- 15 bpp 
rgb565 -- 16 bpp 
rgb888 -- 24 bpp 
argb8888 -- 32 bpp

This doesn't  have a 18bpp. How can I configure the driver to support 18bpp device? 

Any input is welcome!

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