Datasheet

DEM 320240R TMX-PW-N Production Specification
Version: 0 PAGE: 12
7 Optical Characteristics
The following items are measured under stable conditions. The optical characteristics should be
measured in a dark room or equivalent state with the methods shown in Note (1).
Measuring equipment: BM-5A, BM-7,
(Ta=25±2°C)
Item Symbol Condition Min Type Max Unit Note
Brightness --
q=0° Normal
Viewing Angl
e
950 1100 -- cd/m
2
--
Response Time
T
R
-- 15 20 ms
--
T
F
-- 35 50 ms
Brightness Uniformity B
UNI
80 - - %
Contrast Ratio CR 300 450 -- -- --
Color
Chromaticity
(CIE1931)
Red
R
X
(0.590) (0.640) (0.690)
--
--
R
Y
(0.294) (0.344) (0.394)
Green
G
X
(0.248) (0.298) (0.348)
--
G
Y
(0.532) (0.583) (0.633)
Blue
B
X
(0.090) (0.140) (0.190)
--
B
Y
(0.080) (0.130) (0.180)
White
Wx (0.262) (0.312) (0.362)
--
Wy (0.299) (0.349) (0.399)
Viewing
Angle (6H)
Hor.
q
R
CR³10
50 (60) --
Degree --
q
L
50 (60) --
Ver.
f
H
40 (50) --
f
L
50 (60) --
a. Test equipment setup
After stabilizing and leaving the panel alone shall be warmed up for the stable operation of LCM,
the measurement should be executed. Measurement should be executed in a stable, windless,
and dark room. Optical specifications are measured by Topcon BM-7(fast) with a viewing angle
of 2° at a distance of 50cm and normal direction.
b. Definition of response time: Tr and Tf
The response time is defined as the following figure and shall be measured by switching the
input signal for “black” and “white”.