Philips BDL4230E User manual - Page 43
Bright Dot Defects, Dark Dot Defects, Proximity Of Pixel Defects, Pixel Defect Tolerances, Total Dot
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User Manual BDL4230E 6.3. BRIGHT DOT DEFECTS Bright dot defects appear as pixels or sub-pixels that are always lit or "on". These are the examples of bright dot defects: One lit red, green or blue sub-pixel Two adjacent lit sub-pixels: - Red + Blue = Purple - Red + Green = Yellow - Green + Blue = Cyan (Light Blue) Three adjacent lit sub-pixels (one white dot) 6.4. DARK DOT DEFECTS Black dot defects appear as pixels or sub-pixels that are always dark or "off". These are the examples of black dot defects: One dark dot Two adjacent dark dots = 1 pair of dark dots Two dark dots, specifications defines the minimum distance between dark dots 6.5. PROXIMITY OF PIXEL DEFECTS Because pixel and sub-pixels defects of the same type that are nearby one another may be more noticeable, Philips also specifies tolerances for the proximity of pixel defects. In the table below you can find specifications about: • Allowed amount of adjacent dark dots = (adjacent dark dots =1 pair of dark dots) • Minimum distance between dark dots • Total no. of all defective dots 6.6. PIXEL DEFECT TOLERANCES In order to qualify for repair due to pixel defects during the warranty period, a PDP / TFT panel in a Philips Plasma / LCD- display must have pixel or sub-pixel defects exceeding the tolerances listed in the following table. BRIGHT DOT EFFECT MODEL 1 lit sub pixel ACCEPTABLE LEVEL BDL4230E 1 BLACK DOT EFFECT 1 dark sub pixel TOTAL DOT DEFECTS OF ALL TYPES Note: * 1 or 2 adjacent sub pixel defects = 1 dot defect ACCEPTABLE LEVEL 8 9 RETURN TO THE CONTENTS