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TFT LCD panels are usually classified into three categories in the factories, in relation to the number of dead pixels, backlight and uniformity of the backlight and the quality of products in general. There may be a maximum of + / – 2ms maximum response time differences between individual panels that came to the same [...]

The normal liquid crystal displays, such as calculators, image elements direct driven-you can apply a voltage across one segment without interfering with other segments of the screen. This is not possible on large screens with a large number of pixels, since it would require millions of connections-connections at the top and bottom for each of [...]