LQ070Y3DG3B Sharp Microelectronics, LQ070Y3DG3B Datasheet - Page 10

• Manufacturer Part Number: LQ070Y3DG3B
• Description: TFT Displays & Accessories 7 WVGA TFT 800x480
• Manufacturer: Sharp Microelectronics

Specifications of LQ070Y3DG3B

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

[Note 4] Interface block diagram of the LCD
6-2. Backlight driving
[Note 1] The LED backlight is composed by 3 strings from which 8 LED is connected with the series.
[Note 2] Calculated value for reference ( I
[Note 3] LED life time is defined as the time when Brightness becomes 50 % of the original value.
LED voltage
LED current range
Number of circuit strings
LED power consumption
LED life time
The backlight system is edge-lighting type with 24 White-LED(White Light Emitting Diode).
The characteristics of White-LED are shown in the following table.
The figure below shows the circuit chart.
In each string, there is a ceramic capacitor for the electrostatic protection.
under the condition of Ta = 25℃ and I
Parameter
LED-C2
LED-A1
LED-C1
LED-A3
LED-C3
LED-A2
G 0∼ G7
R 0∼ R7
B 0∼ B7
E N AB
Ｖ Ｃ Ｃ
C K
V S
H S
Symbol
W
V
L
I
L
L
L
L
Ceramic capacitor
8
8
8
L
10000
Min.
× V
−
−
−
L
56Ω
56Ω
56Ω
56Ω
56Ω
56Ω
56Ω
L
× 3pairs)
= 20 mA,and continuous lighting.
Typ.
25.6
1.54
8
8
8
20
−
3
Max.
28
25
−
−
−
R 0∼ R7
G 0∼ G7
B 0∼ B7
E N AB
H S
C K
VS
Hour
mA
Unit
W
V
Internal Cuircuit
I
[Note 1]
[Note 2]
[Note 3]
Remark
L
=20mA
(Ta=25
o
C)
LD21305A-7