NEC MultiSync LCD1970NX User Manual

5-6
3. External Inspection on The LCD Module
3.1 Inspection Conditions
1. Room temperature: 20-25°C
2. Humidity: 65 ±5%RH
3. Illumination: Single 20W fluorescent lamp non-directive (Appearance 300 ~ 700 Lux, Display 180 ~
200Lux)
4. To be a distance about 35 cm in front of LCD unit, viewing line should be perpendicular to the surface of
the module judge the visual appearance with human’s eyes.
5. Take off the protector of polarizer while judging the display area.
6. If there is any question while judging, check the panel again while operating
3.2 Electrical Inspection Specification
Item Criteria Remar
(1) Bright dots Max. 3 Note 1
(2) Dark dots
Horizontally adjacent 2 dots (R+G,
G+B)
Max. 3 Note 2
(3) Bright dots Not Allowed
Adjacent Dots
(4) Dark dots
Horizontally, vertically or combined
adjacent 3 dots
(Separately bright dots and dark
dots)
Not Allowed
Note 3
Dot Defect (5)
Dot defects except
(1) and (2)
R or G or B (Bright Dot + Dark Dot) Max. 7 Note 4
(6)
Distance between
bright dots
Distance between bright dots (R -
R): less than 5.9mm
Max. 2 for each
color
Note 5
(7)
Distance between
(6)’s
Distance between (6) s: less than
9mm
Not Allowed Note 6
Two or more pixels or sub-pixels
with more than one fault of (5).
Max. 3 Note 7
Two or more pixels or sub-pixels
with more than one fault of (1).
Min. Distance
between bright
dots
(8) Fault cluster
Two or more pixels or sub-pixels
with more than one fault of (2).
Not Allowed Note 8
Total amount of Bright Dot (R, G, B) and Dark Dot (R, G, B) Max. 13 -
Total amount
of Dot Defects
Total amount of Bright Dot (G) Max. 4 -
Note 9. Every dot herein means sub-pixel (each Red, Green or Blue color)
Note 10. Bright & Dark Dots are larger than one third of sub-pixel. (Dots smaller than one third of sub-pixel
are not counted as a defect dots.)
Note 11. Do not use the [ND] filter in counting a bright dot.

NEC MultiSync LCD1970NX Specifications

General

Brand	NEC
Model	MultiSync LCD1970NX
Category	Monitor
Language	English