7 inch diagonal lcd tft display
Liquid crystals can exist in a number of forms and phases, depending on factors like temperature and the nature of the substance itself, but it is the nematic phase that makes widespread use of LCDs in electronics possible. One type of nematic liquid crystal in particular, known as twisted nematics (TN), are used in LCDs. Twisted nematic liquid crystals naturally exist in a helical or twisted structure. As light waves pass through the helical liquid crystal, they twist in a way that allows them to pass through the second polarizer. In other words, the light waves are rotated until they are oscillating on the one plane that the second polarizer allows to pass.
Model name | TL070WSH29_170807 |
| Screen size | 7.0inch |
| Resolution | 1024 x RGB x 600 |
Drive IC | EK79001ECGA/EK73215BCGA |
Viewing angle | 80/80/80/80 |
| LCM BRIGHTNESS | 550cd/m² TYP, 500cd/m² MTN |
Homegeneity | 80% TYP |
| Interface | RGB |
| OPERATING TEMP | -20℃-70℃ |
| STORAGE TEMP | -30℃-80℃ |
How an LCD Panel produces colors?
The elements of this color filter line up one-to-one with the unit pixels on the TFT-array substrate.
Each pixel in a color LCD is subdivided into three subpixels, where one set of RGB subpixels is equal to one pixel.
(Each subpixel consists of what we've been calling a unit pixel up to this point.)
Because the subpixels are too small to distinguish independently, the RGB elements appear to the human eye as a mixture of the three colors.
Any color, with some qualifications, can be produced by mixing these three primary colors.
The total number of display colors using an n-bit LDI is given by 23n, because each subpixel can generate 2n different transmittance levels.
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