LQ057Q3DG01 Sharp Electronics, LQ057Q3DG01 Datasheet - Page 9

• Manufacturer Part Number: LQ057Q3DG01
• Manufacturer: Sharp Electronics

Specifications of LQ057Q3DG01

• Lead Free Status / Rohs Status: Compliant

6-2. Backlight driving section
LED-A1
LED-C1
LED-A2
LED-C2
7. Timing Characteristics of input signals
7-1. Timing characteristics
Timing diagrams of input signal are shown in Fig.7
The backlight system is edge-lighting type with 20 White-LED(White Light Emitting Diode).
The characteristics of White-LED are shown in the following table. (Ta = 25 deg.)
[Note 1] The LED backlight is composed by 4 strings from which 5 LED is connected with the series.
Table 7-1
【Note7-1】
Clock
Data
Horizontal sync.
signal
Vertical sync.
signal
Horizontal display period
Hsync-Clock phase difference
Hsync-Vsync phase difference
Vertical display start position
Parameter
LED voltage
LED current range
Number of circuit strings
LED power consumption
Table 6-2
[Note 2] Calculated value for reference ( IL × VL )
The figure below shows the circuit chart.
In each string, there is a ceramic capacitor for the electrostatic protection.
In case of lower frequency, the deterioration of display quality, flicker etc., may occur.
Please use this module in more than 50Hz.(1/Tv)
Parameter
frequency
Duty ratio
Setup time
Hold time
Cycle
Pulse width
Pulse width
Cycle
frequency
Min.
-
T.B.D
-
-
Symbol
TH/T
1/TV
THp
TVp
1/Tc
THd
THc
TVh
TVs
Tdh
Tds
TH
TV
Typ.
16.0
20
4
1.28
MIN
50.0
360
251
320
40
10
10
50
1
1
5
0
7
-
Max.
T.B.D
T.B.D
-
-
LED-A3
LED-C3
LED-A4
LED-C4
TYP
63.6
400
262
320
6.3
50
60
Unit
V
mA
W
7
-
-
-
-
-
-
MAX
450
280
320
320
7.0
60
Remark
LED current = 20mA
[Note 1]
[Note 2]
6
6
7
-
-
-
-
-
clock
clock
clock
clock
MHz
Unit
line
line
line
μs
Hz
ns
ns
ns
%
【Note7-1】
LD-20Z53A－7
Remarks