Why are Laptops screen size the way they are,that is, 14 inches, 15.6 inches, 17 inches, etc., etc.
Source : Internet
- 14A lot of laptop manufactures do not produce their own screens. They probably adopt which ever screen they can get from their vendor at the best price/quality point.– kobaltzApr 21, 2014 at 15:10
- 4@kobaltz - ? LCD manufacturers don't make a bunch and put them on the shelf waiting for HP/Lenovo/Dell to come calling. The laptop OEM dictates size and specs to the LCD manufacturers.– TheCleanerApr 21, 2014 at 15:15
- 5@kobaltz That would be in contrast to selecting screens from LCD panel manufacturers based on the worst price/quality point, right?– HopelessN00bApr 21, 2014 at 15:16
- 3I think it also has to do with pixel density. These days manufacturers build screens with a large choice on density, but I think this was not the case some years ago. For TV, it is the same as desktop PC screen. Some are advertised as 22" but in reality the LCD is 21,6". If you look at the real specs of the monitor, you'll probably see different data than the advertised ones. Why are laptop screen (and smartphone too) not advertised this manner ? I don't know. It may be related to the smaller screen consummers want nowadays on handled/laptop device, and the bigger on desktop/TV.– piernovApr 21, 2014 at 16:06
- 2The relation between neighbouring sizes may be related to the manufacturing technology - if you're currently cutting a glass/lcd plate into 14" pieces, and then want to make a larger/smaller screen from the same-sized plates, then there are very few numbers that "make sense", i.e., divide the same plate without wasting material. Just a hypothesis, but it seems reasonable given that process, i.e., many different screen sizes from a single standard of large screen plates.– PeterisApr 21, 2014 at 20:37
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3 Answers
- 34This is an EXCELLENT answer to the root of the question. Thank you! Apr 22, 2014 at 21:04
- 6@stefan I've reformated the table, hopefully this is more clear. The units for size are millimeters, so the largest piece of mother glass today is 2.8 meters by 3 meters. Notably it's only 0.7mm thick, and can only be handled by robots specifically designed for it. Apr 23, 2014 at 14:00
- 6
- 12More "internal research" in the Comms Room -- Looking at this table: en.wikipedia.org/wiki/Display_size it would seem that the metric system pretty much dictates screen dimensions, and that the fractional inches measurements are there for us Americans. Therefore, a diagonal screen of 13.2" can't really exist easily without the W or H being some fraction of a cm. Agree? Apr 21, 2014 at 16:05
- 5@TheCleaner Since they've rounded all the cm sizes to integer values in that table (ex in the top row: 9cm 16:9 is listed as 8x4cm); I'm not sure it's safe to assume that the actual panel sizes are even numbers of centimeter in the diagonal. Apr 21, 2014 at 18:15
- 4I have found in the professional market a good number of 16:10 screens are available. They are useful as they allow you to view media at 16:9 while having a little room at the top or bottom for a tool bar or some such if you are doing editing to hold your settings and tools. Still, overall a great answer, I even found out a few things.– ValityApr 22, 2014 at 1:43
- 1If you consider MacBooks as part of the market, then 16:9 has not completely taken over, as these use 16:10. Apr 22, 2014 at 7:51
- 3@TheCleaner Screen sizes in Norway is given in inches. I would expect it to be the same in the rest of Europe. Also according to Google 13.3 inches is 33.782 cm. And 34 cm is 13.38 inches. So if metric values where the driver we would expect to see 13.4 inches.– TaemyrApr 22, 2014 at 8:30
- 6"I have never known why they advertise screen size as a diagonal" Because it's one number, instead of two (width x height)?– IndrekApr 21, 2014 at 15:20
- 5@BigHomie - while I don't disagree with your answer's contents, I was hoping for something that answered "Are there actual equations/ratios/mathematical factors in determining screen sizes on a laptop that make certain sizes more common than others?" Apr 21, 2014 at 15:25
- 40This is off-topic, but the reason for diagonal sizes comes from when picture tubes were round. They used to give the diameter of the (round) tube, which was encased in a rectangular box. When rectangular picture tubes were invented, the diagonal was used, because people were used to measuring that way. That is, the diameter of the circular tubes was equal to the diagonal of the rectangle in which they were enclosed. Apr 21, 2014 at 15:31
- 3@Indrek because for different aspect ratios, width or heigt may be the same for diffrent screen areas. Apr 22, 2014 at 0:12
- 4@BigHomie: I suspect because the diagonal is larger than either the width or the height (and thus sounds better).– ThanatosApr 22, 2014 at 22:42
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