This has to do with a 1 megapixel processing boundary of easily available chipsets for VRAM ( video memory ) and video processing display drivers. Its a standard memory size of importance to chip makers. Makes for cost productive configurations where the Input / Output systems are built off of already available OEM devices, so basically the Manufacturer is more in the business of flatpanel Glass making and bezel/speaker situations on a large display. The functional basic math:
1 megapixel
1024 x 1024 = 1048576 pixels
1366 x 768 = 1049088 pixels 16 by 9 image
720p = 1280 x 720 = 921600 pixels. 16 by 9 HD standard .
720p is just under 1 megapixel of data per screen.
Standard EDID codes dont exist for 1366 x 768 resolution.
causing lots of angst when people buy a 1366x768 panel and try to hook it up with VGA connector to a PC or a game machine, to find that 1280x768 is really the only clean resolution they get, for my case (my philips LCD TV), the best resolution is set to 1024 * 768, if i set higher resolution than 1024 * 768, all the words will get stretched, why? is it because of panel problem? Window XP? Or Driver problem? Initially, I though it is because of my old graphic card problem (NVIDIA XFX 7300GS), but after i replaced it with the new ATI 4550, the same problem still exist. WHY?
Let's do a simple experiment,
1) Print screen the page of any browser.
2) Paste it into Paint
3) Press CTRL + W.
4) Change the Stretch values for Horizontal and Vertical image from initial 100% to 80%.
Now, look at the result, is it the same as the quality of the image you get when you set your LCD TV to higher resolution? I think you should able to know the answer by now. It is because the browser won't be able to fill up all the pixels you have for your 1366 * 768 LCD screen.
I am only using this LCD TV for movie, so i set the resolution to 1360 * 768 (you won't able to get 1366 * 768) to get out more pixels for every movies i have. If you really want to use it for task besides movie, (surf net for example), you can use the ZOOM function in IE/Mozilla/Opera and ZOOM it to 120% or more. Until you found that the words are readable.
I have tried to use a software called Powerstrip to set the resolution to 1366 * 768, but no point actually because the standard supported resolution is 1360 * 768, it might cause your device malfunction if you force the signal to 1366 * 768, so, I decided to put back the resolution to 1360 * 768, if you really want your LCD to display native resolution (1366 * 768) You can give a try on this software.
What is HDCP?
HDCP stands for High-Bandwidth Digital Content Protection, a copy protection scheme to eliminate the possibility of intercepting digital data midstream between the source to the display. -> Connect your PC to a Digital TV via DVI/HDMI.
If your graphic card only have DVI port, you can use a DVI to HDMI converter or buy a graphic card with HDMI port. (For example, ATI 4550, you can easily output 7.1 channel audio via HDMI with the latest driver from ATI)
How to Extend Desktop to LCD/Monitor/TV? (How to connect your PC to 2 monitors)
1) Right-click the desktop, and then click Properties.
2) In the Display Properties dialog box, click the Settings tab.
3) Click the Display list and select your external monitor. If you do not see multiple monitors listed, your computer hardware may not support Dualview. Contact your computer manufacturer for more information.
4) Select the Extend my Windows desktop onto this monitor check box.
What is Contrast Ratio?
The easier way to explain about Contrast Ratio is how Black is your Black? Your monitor may display a shade of dark gray instead of black if Contrast Ratio is too low.
The truth about HD READY,
http://hd1080i.blogspot.com/2006/12/1080i-on-1366x768-resolution-problems.html
Powerstrip guide
http://www.ramelectronics.net/powerstrip.ep
What is HDCP
http://www.digitalconnection.com/FAQ/HDTV_12.asp
http://www.hometheaterhifi.com/volume_11_4/feature-dvi-hdmi-hdcp-connections-11-2004.html
How to Extend Desktop to LCD/Monitor/TV?
http://www.microsoft.com/windowsxp/using/setup/hwandprograms/monitors.mspx
Contrast Ratio
http://www.practical-home-theater-guide.com/contrast-ratio.html
http://gizmodo.com/gadgets/feature/contrast-ratio-shoot+out-everyone-loses-259495.php
https://engineering.purdue.edu/~bouman/ece637/previous/ee637S05/notes/pdf2/Brightness_and_Contrast.pdf
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