Confidential
4-4
GT750
Pixel specification
Order
Symptom
Pattern
Criteria
Bright pixel ( dots)
Gray 10 pattern
A=0
2
Dark pixel(dots)
White pattern
A≤7
3
Unstable pixel (dots)
Any pattern
A=0
4
Adjacent pixel (dots)
Any pattern
A=0
5
Bright blemish (Dirty)
Gray 10 pattern
A≤4
(diameter<1 inch)
6
Dark Blemish(Dirty)
Blue 60 pattern
A≤4
(diameter<1 inch)
7
Bright pixel on frame
Gray 10 pattern
≤1
6. Focus Test
Procedure
- Test equipment: video generator.
- Test signal: analog 1280 x 800�60Hz
1280 x 800�60Hz
�60Hz
- Test Pattern: full screen
Inspection item
- Focus check
Criteria
- From screen 0.65 M via visual to check the focus,
look at the entire screen, focus shall be clear, crisp,
and sharp over the entire surface of the display pat
-
tern. (Blur word on one of the corner after adjust
-
ment is acceptable. However, the word should at
least be recognizable.)
7. Color Performance
Procedure
- Test equipment: video generator.
- Test signal: 1280 x 800�60Hz, 1080i
1280 x 800�60Hz, 1080i
�60Hz, 1080i
- Test Pattern: Master, 64 gray RGBW
Please get into service mode.Use
720p & 1080p signal, master pattern to do HDTV
test. Color cannot discolor to purple and blue.
Inspection item
- Check if each color level is well-functioned.
- Color saturation
Criteria
- Screen appears normal. It should not have any
abnormal condition, such as lines appear on the
screen and so on.
- Color appears normal.
Full screen
Master
