Operation Manual
Notebook
5-11
Types of pixel errors
Type 1: pixel always lights (bright, white dot)
Type 2: pixel never lights (dark, black dot)
Type 3: abnormal or defective sub-pixel of the colors red, green or blue (lighting
continuously, not lighting or blinking)
Classes of pixel errors
The number of errors for the above mentioned types in each error class refers to
one million pixels and must be converted according to the physical display
resolution. For example, for Active Matrix LCDs (TFT) with a resolution of 1440 x
900 pixels (WXGA) rendered by three sub-pixels each (red, green, blue), a total of
almost 3,9 million control transistors are used. for example, consider a 17-inch
WXGA display with 1440 horizontal and 900 vertical dots (pixels). This is
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