SPEC No.

LD-26912A

MODEL No.

LS013B7DH05

PAGE

11

6-2) Power supply sequence

※

Refer to timing chart and AC timing characteristics for detail

※

1 ③ and ④ may be opposite (however, TCOM polarity inversion will not occur even with EXTCOMIN

between DISP=”L”. Also, when DISP and EXTCOMIN are simultaneously started up, allow 30us or more

before SCS starts up (It may be less than 60us).

※

2 Setting value for pixel memory initialization

SCS=Driving accordingly to clear pixel internal memory method (use all clear flag or write all screen white)

S1=M2 (all clear flag) = “H” or write white

SCLK: Normal Driving

[Remark] Precaustions at ehte time of power on and power off.

Remark 1)When power on , VDDand VDDA are same timem or VDD should be faster than the VDDA.

Remark 2) When power off, VDD and VDDA are same time or VDDA shoud be faster than the VDD.

①②

③※

1 ④※1

⑤⑥⑦

VDD/VDDA（5V）

GND

GND

DISP

GND

GND

EXTCOMIN

GND

GND

SCS

GND

※

2

※

2

GND

Others

GND

※

2

※

2

GND

Normal operation

Normal operation

Normal operation

T1

Off sequence

Normal operation

T2

T3

T4

T5

T6

T7

On Sequence

[ON Sequence]

(1) 3V rise time (depends on IC)

(2) Pixel memory initialization

T2: 1time or more Initialize with M2 (all clear flag) or write all screen white

(3) Release time for initialization of TCOM latch

T3: 30us or more

Time required to release COM related latch circuit initialization which is initializing using DISP signals

(4) TCOM polarity initialization time

T4: 30us or more

Time required initializing TCOM polarity accordingly to EXTCOMIN input

[Normal Operation]

Duration of normal driving

[Off Sequence]

(5) Pixel memory initialization time

T5: 1time or more

(6) VA, VB, VCOM initialization time

T6: 30us or more