Barco KVD5521 - Definition of Uniformity Defect; Spot and Linear Type Inspection

10. Technical data
- If the dot is still visible and bright:
- For R or B dot, go to 50% gray level;
- For G dot, go to 30% gray level;
• Step 3
- If the dot is still visible (G at 30% gray level, R or B at 50% gray level) it counts as a bright dot;
- Otherwise it counts as a dark dot.
• Step 4
A dot that is identifiable at 100% white background as a dark dot (R, G, and B) counts as an OFF dot.
10.11.4 Definition of uniformity defect
While operating the LCD panel, if a certain area is remarkably brighter or darker, this is considered a uniformity
defect.
However, extraneous substances which can be wiped off like fingerprints or particles are not considered a uni-
formity defect.
10.11.5 Spot and linear type inspection
Defect Type Criteria
Max
Spot defect 0.1 < D <= 3.0 (mm)
5
Linear defect
0.01 < W <= 0.4 (mm)
5
2 < L <= 15.0 (mm)
Total amount of defects
10
Barco - KVD5521, IVD5521, HVD5521 - R591341 - User Manual - Revision 05 - November 2016
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