Datasheet

DEM 480128A VMH-PW-N Production Specification
Version: 3 PAGE: 6
6. Optical Characteristics
6.1. Optical Characteristics
Ta=25ºC, VCC=3.3V, TN LC+ Polarizer
Item Symbol Condition
Specification
Unit
Min. Typ. Max.
Luminance on
TFT(
f
I
=20mA/LED)
Lv
Normally
viewing angle
θX = φY =0º
320 600 - cd/m²
Contrast ratio(See 6.3) CR 300 500 -
Response time
(See 6.2)
TR+TF - 30 45 ms
Chromaticity
Transmissive
(See 6.5)
Red
XR 0.543 0.593 0.643
YR 0.293 0.343 0.393
Green
XG 0.285 0.335 0.385
YG 0.564 0.614 0.664
Blue
XB 0.103 0.153 0.203
YB 0.084 0.134 0.184
White
XW 0.255 0.305 0.355
YW
0.302 0.352 0.402
Viewing Angle
(See 6.4)
Horizontal
θX+
Center CR≥10
- 70 -
Deg.
θX- - 70 -
Vertical
φY+ - 70 -
φY- - 70 -
NTSC Ratio(Gamut) - 50 - %
6.2. Definition of Response Time
6.2.1. Normally Black Type (Negative)
Selected state
Non-selected state
Tr
Tf
Relative
Brightness
100%
90%
10%
0%
Non-selected state
Tr is the time it takes to change form non-selected stage with relative luminance 10%
to selected state with relative luminance 90%;
Tf is the time it takes to change from selected state with relative luminance 90% to
non-selected state with relative luminance 10%.
Note : Measuring machine: LCD-5100