Akai LCT42Z7TAP, Service Manual

Page: 96 / 130

Product Specification
LC420WU1
Liquid Crystal Display
Dimension of viewing angle range
FIG. 4 Viewing Angle
Normal
Y
E
φ
θ
φ
= 0
°
, Right
φ
= 180
°
, Left
φ
= 270
°
, Down
φ
= 90
°
, Up
Optical characteristics are determined after the unit has been ‘ON’ for 120min in a dark environment at 25
±
2
°
C.
The values specified are at an approximate distance 1.2mm from the LCD surface at a viewing angle of
Φ
and
θ
equal to 0
°
.
It is presented additional information concerning the measurement equipment and method in FIG. 1.
E
Z
Cont
ra
st
1.2 ~ 1.5
㎜
θ
=0
˚
θ
r=45
˚
θ
l=135
˚
θ
u=225
˚
θ
d=315
˚
UP
DOWN
FIG. 5 Diagonal Viewing Angle Measurement Condition
94／128