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6.5 Display Quality
6.5.1 Test Conditions
1) Inspection Area: Within viewing area
2) Condition
3) Test Pattern
6.5.2 Specifications
Item
Function
1)2)3)
Display Quality
Black and White
Spots/line
Backlight
Note 1) Defects of both color filter and black matrix are counted as bright or dark defects.
Inspection area should be within the active area.
Note 2) Bright defect means a bright spot(sub-pixel) on the display pattern of gray scale L0.
Dark defect means a dark spot(sub-pixel) on the display pattern of gray scale L63.
Note 3) Bright spot which can not be found by using 5%ND-Filter shall not be counted as a defect.
Note 4) After the power of LCD is turned off, the last displayed image remains in the display for a few minutes.
But this remained image is not Error. So phenomenon of remained display is not subject to display quality
criteria.
Toshiba Matsushita Display Technology Co.,Ltd
Specification No. TENTATIVE
: Same as test conditions shown in 4.1 and 6.2
: White display pattern (gray scale level L63) and black display pattern (gray scale level L0)
4)
No display, Malfunction
Missing line
Missing Sub-Pixels
1) Bright defects
2) Dark defects
3) Total sub-pixel defects
4) Bright defect conjunction(2sub-pixels)
5) Dark defect conjunction(2sub-pixels)
6) Bright defect conjunction(3sub-pixels)
7) Dark defect conjunction(3sub-pixels)
8) Distance : Bright defect - Bright defect
Dark defect - Dark defect
Bright - Dark defect
Inconspicuous flicker, crosstalk, Newton's ring and other defects :
neglect
Inconspicuous defects : neglect
Missing (Non-operating)
Description / Specifications
: 4pcs. Maximum
: 4pcs. maximum
: 5pcs. Maximum
: 1set max.
: 1set max.
: 0set
: 0set
≥ 15 mm
≥ 10 mm
neglect
Date: 2008 – 11- 07
Date:
-
-
←# Special
Class
Major
Major
Minor
Major
New No. LTA057A341F-14
Old
No.
←& Addition
Sheet
28
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← Change
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