Datasheet
DEM 16227 SYH-LY  Product Specification 
VERSION: 2 PAGE: 14 
6.Defects and Acceptance Standards 
6.1 Electrical properties test  
No.  Defects   Description  
Accepted 
standard 
MAJ
MIN 
6.1.1 
Missing 
segment 
Dot and character missing segment caused by its 
wire broken/poor contact(s) and internal open 
circuit.
Reject 
√ 
6.1.2 
No display/ 
reaction 
The products no picture display under normally 
connected situation. 
Reject 
√ 
6.1.3 
Mis-display/ 
abnormality 
display 
Displaying pattern and sequence not conform to  
the requirement or abnormally display when 
scanning as per the correct procedure.  
Reject 
√ 
6.1.4 
Wrong 
viewing angle
When powered on, the clearest viewing direction of 
display pattern is not conform to the requested 
one(or not conform the direction of the customer 
approved samples)  
Reject 
√ 
6.1.5 
Dim or dark 
display 
Overall contrast is either too dark or too dim under 
normal operation 
Beyond
the 
voltage 
tolerance, reject
√ 
6.1.6 
Response 
slowly 
When power on or off some parts response time is 
different from others. 
Reject 
√ 
6.1.7 
Exceed 
segment 
As misalignment and insufficient etching caused 
abnormally display, display with exceed pattern or 
display with abnormally symbol, row or columns 
when power on.
Refer to the 
dot/line standard
√ 
6.1.8 
PI black/ 
white spot 
Partial
black
and
white
spots
visible
when 
changing
display
contents
due
to
defective PI
layer.
Refer to
the 
spot/line
criteria 
for
the
visible 
spots
when 
display
image 
remains
still; 
others
OK
√ 
6.1.9 
Pinhole /white 
spot 
Fragmental
patterns
appearing
when
 it 
powered 
on
caused
by
missing
ITO.
d = (X+Y)/2 
Refer to the 
dot/line standard
√ Y
X










