DT022BTFT Datasheet, PDF (9/13 Pages) List of Unclassifed Manufacturers – LCD Module Product Specification

Displaytech Ltd _{LCD MODULE}
9. Backlight specification
Item
Supply voltage
Forward current
Uniformity
Color coordination
LED circuit diagram:
Symbol
Vf
If
∆Bp
X
Y
Condition
If=15mA x3
If=45mA
Min
2.9
---
80
0.265
0.265
DT022BTFT
Version: 1.0
(Vcc=3.0V, Vss=0V, Ta=25°C)
Typ Max Unit Note
---
3.5
V
1
45
---
mA
2
---
---
%
--- 0.315 ---
--- 0.315 ---
Constant current If=15x3mA; Vf=3.2±0.3V(typ)
Note:
1)
2)
The LED’s driver mode needs to be constant current mode.
Permanent damage to the device may occur if maximum values are exceeded. Functional operation should be
restricted to the conditions described under normal operating conditions.
10.Optical Characteristics
Item
Brightness
Uniformity
Viewing Angle
Contrast ratio
Response Time
White
Red
Green
Blue
NTSC Ratio
Symbol
Bp
∆Bp
θ1
(Ф=90°
or 270°)
θ2
(Ф=0°
or
180°)
Cr
Tr
Tf
x
y
x
y
x
y
x
y
S
Condition
θ=0º
Ф=0º
Cr≥10
θ=0º
Ф=0º
θ=0º
Ф=0º
(Vcc=3.0V, Vss=0V, Ta=25°C)
Min Typ Max Unit Note
180 200
--- cd/m²
1
80
---
---
%
1, 2
-60 ~ 50
-70 ~ 70
deg
3
---
350
---
---
4
---
20
30
ms
5
0.2408 0.2908 0.3408
0.2818 0.3318 0.3818
0.4911 0.5411 0.5911
0.3035 0.3535 0.4035
0.2741 0.3241 0.3741
---
1, 6
0.4947 0.5447 0.5947
0.1055 0.1555 0.2055
0.0839 0.1339 0.1839
---
38
---
%
8