Seiko G1216, G121600N000 User Manual

AN.No.G121600N000-3D0E

LIQUID CRYSTAL DISPLAY MODULE

G 1 2 1 6 0 0 N 0 0 0

USER’S MANUAL

Seiko Instruments Inc.

AN.No.G121600N000-3D0E

- i -

This manual provides technical information covering functions and operational
instructions for the G1216 liquid crystal display modules made by Seiko
Instruments Inc. Pleas e read throu gh this m anual bef ore operat ing the product.
Distribution of this manual to th ir d p ar ties for any purpose other th an o per at ion of
the product is prohib ited. The descriptio ns herein are s ubject to cha nge without
prior notice.

Revision Record

Version

Revision Date

1 Original December 1993

Copyright



1993 by Seiko Instruments Inc.

Printed in Japan

AN.No.G1216001N000-3D0E

- ii -

CONTENTS

1. GENERAL

1.1 General..................................................................................................... 1

1.2 Features.................................................................................................... 1

1.3 Absolute Max imum Ratings ..................................................................... 2

1.4 Mechanical .............................................................................................. 2

1.5 Electrical Characteristics .......................................................................... 2

1.6 Optical Characteristics.............................................................................. 3

1.7 LC Panel Life Time................................................................................... 4

1.8 Dimensions............................................................................................... 5

2. CIRCUIT CONFIGURATION

2.1 Block Diagram .......................................................................................... 6

2.2 Segment Drivers (HD61202).................................................................... 6

2.3 Common Driver (HD61203)...................................................................... 12

2.4 Bias Vo lta ge Generat or ............................................................................ 12

3. OPERATING INSTRUCTIONS

3.1 Terminal Functions................................................................................... 13

3.2 Timing Characteristics.............................................................................. 14

3.3 Reset Function ......................................................................................... 15

3.4 Instructions ............................................................................................... 16

3.5 Contrast Adjustment and Power Supply Example ................................... 20

3.6 MPU Connec ti on Diagram........................................................................ 20

4. PRECAUTIONS................................................................................................... 21

INDEX

AN.No.G121600N000-3D0E

- 1 -

1.

GENERAL

1.1 General
The G1216 is a very thin LCD module on which a full-dot m atrix LCD panel and a CMOS IC driver are

integrated. The LCD panel used here features wide viewing angle and high contrast. This full dot
configuration allows a wide variety of patterns to be displayed depending upon the input data. The
display position is the intersection point of the matrix transparent electrodes. This prevents display
distortion and displacem ent. Incorporating a display RAM and a displa y timing signal generator int o the
G1216 allows for direct connection with the MPU circuit without using an LCD controller.

1.2 Features



12864 full dot matrix configuration



1/64 duty, 1/9 bias



Two 4096-bit internal display data RAMs



An internal display timing signal generator



8-bit parallel interface



Instructions:

Display Data Read/W rite, Display ON/OFF, Display Start L ine, X-Address (Page) Set, Y- Address
Set, and Status Read.



Two types of power supply: VDD=+5 V, V

LC



Reflective, gray mode



Positive display

Display data “H”: Display ON: blue display color
Display data “L”: Display OFF: gray background



A wide operating temperature rang e

AN.No.G121600N000-3D0E

- 2 -

1.3 Absolute Maximum Ratings

Vss = 0 V

-

0.3

V

DD

-19.0

-0.3

-20

-30
+20
+20

Ta = 25C

5010%RH



65%RH

—



48 hrs



1000 hrs

7.0

V

DD

+ 0.3

V

DD

+ 0.3
+ 70
+ 80

+85
+65

V
V
V



C



C
%RH
%RH

V

DD

V

LC

V

IN

T

opr

T

stg

—
—

Power supply

voltage

Input voltage

Operating

temperat ur e

Storage

temperat ur e

Storage humidity

Item Symbol Conditions Min. Max. Unit

1.4 Mechanical Characteristics
Item Standard

Dot configuration 12864 dot
Module dimensions ( H  V  T ) [ mm ] 75.0  52.7  6.8
Viewing area ( H  V ) [ mm ] 60.0  32.5
Active display area ( H  V ) [ mm ] 55.01  27.49
Dot dimensions ( H  V ) [ mm ] 0.4  0.4
Dot pitch ( H  V ) [ mm ] 0.43  0.43
Weight [ g ] 35 max.

H : Horizontal V : Vertical T : Thickness (max.)

1.5 Electrical Characteristics

V

DD

= 5 V5%, VSS = 0 V, Ta = -20C to +70C

Input

voltage

1

Input

voltage

2

Output

voltage

3

V
V
V
V
V
V
V

V
mA
mA

H

Z

V

DD

0.3V

DD

V

DD

0.8
—

0.4

5.25

-3.0

4.0

4.0
—

—
—
—
—
—
—

5.00

-8.2

2.0

1.8

71.4

0.7

V

DD

0

2.0
0

2.4

—

4.75

-12.0
—
—
—

—
—
—
—

I

OH

=- 205 A

I

OL

= 1.6 mA

—
—

V

DD

=5 V, Ta = 25C

V

LC

=- 8.2 V

—

High
Low
High
Low
High
Low

V

IHC

V

ILC

V

IHT

V

ILT

V

OH

V

OL

V

DD

V

LC

I

DD

I

LC

f

FRM

Item Symbol UnitMin. Typ. Max.

Power supply

voltage

Current consumpt ion

4

Frame frequency

Conditions

1

Applied to RST.

2

Applied to DB0 to DB7, E, R/W, D/I, CS1 and CS2.

3

Applied to DB0 to DB7.

4

Display patterns: checkered patterns.

AN.No.G121600N000-3D0E

1.6 Optical Characteristics

Note 4

Note 3

40
100
630

2300

100

200
1000
3500

—
—
—
—

—5.53.0

Refer to notes

1 and 2

—
—



—
—
—

-20
—
—

-20
—
—

—
20
40
—
40
60

-20°C

25°C

Response time

θ = 0°
φ = 0°

Vopr=14.1 V

θ = 0°
φ = 0°

Vopr=13.2 V

t

on

t

off

t

on

t

off

25°CC

θ = 0°
φ = 0°

Vopr=13.2 V

C ≥ 2.0
φ = 270°
Vopr=13.2 V

C ≥ 2.0
φ = 0°
Vopr=13.2 V

Contrast

25°C

25°C

θ

1

θ

2

θ2-θ

1

θ

1

θ

2

θ2-θ

1

Viewing angle

Measuring instrument : Canon illuminometer LC-3S

1/64 duty, 1/9 bias, f

FRM

= 71.4 Hz, Vopr = VDD-VLC , LED backlight: OFF

Item Sym. Conditions RemarkMin.Temp. Typ. Max.

ms

—

Degree

Unit

θ2θ

1

2.0

Cmax.

Viewing angle

Contrast C

Y’(φ=180°)

θ2θ

1

Light
(reflective LCD)

Sensor

LCD panel

Y (φ=0°)
(θ=90°)

φ

Z’

Z (θ=0°)

θ

X (φ=90°)

X’

Note 1: Definition of angle θ and

φ

Note 2: Definition of viewing angles θ1 and θ2

Remark: The optimum viewing angle by visual

inspection and angle θ at Cmax do not
always match.

AN.No.G121600N000-3D0E

- 4 -

Brigh

tness of non-selected dot (reflection)

B

2

C =

Brightness of selected dot (reflection) B

1

t

off

t

on

Sel

ected status

(display ON)

10%

B

2

B

1

0

(%)

Operating voltage(V)

Brightness for selected dot

Brightness curve
for non-selected
dot

Non-selected
status

100%

90%

V

opr

: Operating voltage ton: Response time (rise)

f

FRM

: Frame frequency t

off

: Response time (fall)

Note: Measurement must be made using a transmissive LCD panel.

V

opr

1/f

FRM

Note 4: Definition of response time

Note 3: Definition of contrast (C)

Brightness
(reflection)

Dark

Light

Brightness

(V)

N

on-selected status

(display OFF)

1.7 LC panel life time

Life time

1

hrs100,000 or more

25C10C
<65%RH

Item UnitConditions Standard

1

Definition of life time: the time up to occurrence of any of the following:



Contrast reduces to 30% of the initial value.



Current consumption becomes three times the initial value.



Orientation deteriorates significantly.



The display malfunctions.

AN.No.G121600N000-3D0E

1.8 Dimensions

Power supply voltage: +5.0 V
GND: 0 V
LC drive voltage
Data bus (LSB)
Data bus
Data bus
Data bus
Data bus
Data bus

Data bus

Functions

DB

7

CS1
CS2
RST
R/W

D/I

E

F

GND

NC

NC

Data bus (MSB)
Chip select (1)
Chip select (2)
Reset
Read/Write
Data/Instruction
Enable
Frame ground

1

—

—

I/O terminal functions

Unit: mm

General dimensional tolerance:

±

0.5

11
12
13
14
15
16
17
18
19

20

V

DD

V

SS

V

LC

DB

0

DB

1

DB

2

DB

3

DB

4

DB

5

DB

6

1
2
3
4
5
6
7
8
9

10

Sym.No.

Figure 1 Dimensions

FunctionsSym.No.

1

F

GND

is connected to the metallic frame of the module. Use this frame when grounding.

AN.No.G121600N000-3D0E

- 6 -

2. RCUIT CONFIGURATION

2.1 Block Diagram
This product consists of two HD61202 segment drivers, an HD61203 common driver and a bias

voltage generator. Figure 2 shows the block diagram.

CS2

RST, R/W, D / I, E

DB

0

to DB

7

V

DD

CS1

V

SS

64

12864 full dot matrix LCD

Segment Driver 1

V

LC

Va, Vc, Vd, V

f

V

a

V

b

V

e

V

f

Segment Driver 2

Common Driver

Bias Voltage

Generator

FRM
M
CL2



1



2

64 64

Figure 2 Block Diagram

2.2 Segment Drivers (HD61202)
The segment driver is a 64 drive out put CMOS IC. The G1216 is driven wit h the panel d ivided into

two right and left displays. A segm ent driver controls the divided sc reen. 8 bits of data transm itted
from the MPU are saved in the int er na l d ispl a y RA M, an d t he s e gment signal is generate d to dri ve t he
LC. 1 bit of display RAM data corresponds to 1 dot lighting or non-lighting on the LC panel.