PPC-090T-APL User’s Manual
IUMPPC090TAPL-01 Ver.1.1A Aug, 2021
7
[ Note 4 ]
Judge the defect dot and the adjacent dot as following. Allow below (as A, B, C and
D status) adjacent defect dots, including bright and dark adjacent dot. And they will be counted
2 defect dots in total quantity.
R
R
G
G
Ｂ
Ｂ
R G
Ｂ
R
R
G
G
Ｂ
Ｂ
R G
Ｂ
R
R
G
G
Ｂ
Ｂ
R G
Ｂ
R
R
G
G
Ｂ
Ｂ
R G
Ｂ
R
R
G
G
Ｂ
Ｂ
R G
Ｂ
R
R
G
G
Ｂ
Ｂ
R G
Ｂ
R
R Defect Dot
Adjacent Dot
A
B
C
D
The defects that are not defined above and considered to be problem shall be reviewed
and discussed by both parties.
Defects on the Black Matrix, out of Display area, are not considered as a defect or counted.
[Note 5]
According to the technical information from LCD manufacturer, the image retention may
happen on LCD display if the static image is kept for a period of time without any change. ICOP
will suggest customers not to have static image on LCD for over 4 hours without any image
movement and also enable screensaver to avoid image sticking issue if LCD displays need to be
kept on for a long time.
Some Image retention issue will disappear when LCD display is turned off for a period of time,
but some image retention may be not reversible when LCD encounters screen burn.
The following is LCD manufacturer’s test result for customers’ reference.
TEST ITEMS
CONDITIONS
NOTE
High Temperature Operation
70
℃
;240hrs
High Temperature Storage
80
℃
; 240hrs
High Temperature High
Humidity Operation
60
℃
; 90%RH ;240hrs
No condensation
Low Temperature Operation
-20
℃
; 240hrs
Backlight unit always
turn on
Low Temperature Storage
-30
℃
; 240hrs
Thermal Shock
–30
℃
(0.5hr) ~
