Postavljam ovaj citat da upoznam ljude koji ne znaju za odnos 6-bit i 8-bit panela za tft monitore i koliko boja stvarno prikazuju, neki tvrde da lupam gluposti ali izgooglajte, ne zameram onima koji ne znaju, vec onima koji se prave da znaju, pozz.
--------------------------- | 6-bit versus 8-bit panels | ---------------------------
Lets start with color representation. There are lots of ways to represent colors in a numerical format. The common is to use rgb method. This is defined as a 32-bit number like so: 00RRGGBB where the first 8 bits are 0`s (unused), the next 8 bits are for red, the next 8 bits are for green, and the last 8 bits are for blue. This is called 24-bit color (note: windows calls it 32-bit color because values are stored in 32-bit integers). You set this value in color quality section of the display properties in windows. Note: you can actually use true 32-bit color, although windows and most consumer level graphics cards/monitors don`t support it. YOu need some high end unix stuff from someone like SGI for that.
So, how does this relate to LCD`s? LCD`s also use a numerical format to represent numbers, although their naming convention is different. There are two types of displays available, 6-bit displays and 8-bit displays. This refers to the number of bits per color. In other words, an 8-bit panel corrosponds to 24-bit color directly and 6-bit color refers to something not available in windows (although it`s close to 16-bit color). What this means is that even though you may set the color depth to 24-bit (it reads 32-bit remember), you are not seeing that bit-depth. Now how much of an impact does this have? 8-bit displays can display a total of 16.7 million colors. 6-bit displays can only display 262 thousand colors. That`s almost 100 times more colors on the 8-bit display.
Now of course showing that few colors is completely unacceptable, so LCD manufacturers employ a little trick called dithering. It works by tricking you into seeing a color that isn`t really there (it`s rather clever actually). If it has to display a non native color, it takes two adjacent pixels and sets them to values just to either side of the desired value. The result is that the eye thinks it sees the proper color, even though it really doesn`t. Printed media that uses only 4 colors of ink but places two colors right next to each other works the same way essentially (think magazines and newspapers). However, even using this method it can still only "display" 16.2 million colors. As a side note: you can tell if a panel is an 8-bit or a 6-bit panel by checking if it can display 16.2 million colors or 16.7 million colors. Newegg reports all panels in this manner. Ok...now why is this bad? Depending on how sensitive your eyes are, you can see the dithering taking place. I usually see it as a sort of "banding" usually, and the colors don`t quite look as good. It`s like the old refresh of CRT monitors...some people are perfectly happy with 60hz, and some can`t stand 75hz. In any case, the fact is that the images you are seeing on a 6-bit panel are not completely accurate. In an 8-bit panel, images look very rich in color without having to use any extra features such as increasing the contrast too much or using something like digital vibrance in the nvidia drivers. Color representation is pretty much perfect on an 8-bit panel (except in really dark shades due to bleed-through of the backlight, which all TFT panels have).
So why are 6-bit panels so common? They are a lot cheaper to make, and they have faster response times. This is why we saw a jump in refresh times from the 18ms range to the 8ms range almost overnight when the 6-bit panels were first introduced. And of course consider that companies have been stressing response times for years since they were so much of a problem at first, that pretty much everyone viewed response time as the only criteria in selecting an LCD. Companies capitalized on this, and that`s why most panels today are 6-bit panels unfortunately.
Tužno, ali popularno. Bolje smešna boja nego duhovi u igricama, tržište je reklo svoje. A grafičari ionako nemaju šta da traže na LCD-u. Bitno da je fancy..., vremenom će se i to popraviti. Kako bi inače neko ko je kupio 6-bit panel sa 4ms počeo da se oseća kao go..o nego da ga na svim prikazima i novinama ne bombarduju kako su NOVI paneli od 1,2ms i 8bit ili 12 bit dubinom, MNOOOOOGOOOO bolji, i da je u stvari kupio shit koji mora da trpi svaki dan satima.
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