Seiko G1216B1N000 User Manual

AN.No.G1216B1N000-3D0E

LIQUID CRYSTAL DISPLAY MODULE

G 1 2 1 6 B 1 N 0 0 0

USER’S MANUAL

Seiko Instruments Inc.

AN.No.G1216B1N000-3D0E

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 oper ating the product.
Distribution of this manual to third parties for a n y purpose other than operat io n of
the product is prohib ited. The descrip tions herein are s ubject to cha nge without
prior notice.

Version

1 Original December 1993

Copyright

Printed in Japan

1993 by Seiko Instruments Inc.



Revision Record

Revision Date

- i -

CONTENTS

1. GENERAL

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

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

1.3 Absolute Maximum Ratings (excluding LED backlight)............................ 2

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

1.5 Electrical Characteristics (excluding LED backlight) ............................... 2

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

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

1.8 LED Backlight Characteristics .................................................................. 4

1.9 Dimensions............................................................................................... 6

2. CIRCUIT CONFIGURATION

AN.No.G1216B1N000-3D0E

2.1 Block Diagram .......................................................................................... 7

2.2 Segment Drivers (HD61202).................................................................... 7

2.3 Common Driver (HD61203)...................................................................... 13

2.4 Bias Vo lta ge Ge nerat or ............................................................................ 13

3. OPERATING INSTRUCTIONS

3.1 Terminal Functions................................................................................... 14

3.2 Timing Characteristics.............................................................................. 15

3.3 Reset Function ......................................................................................... 16

3.4 Instructions ............................................................................................... 17

3.5 Contrast Adjustment and Power Supply Example ................................... 21

3.6 LED Backlight Driver Example ................................................................. 21

3.7 MPU Con necti on Dia gram........................................................................ 23

4. PRECAUTIONS................................................................................................... 24

INDEX

- ii -

AN.No.G1216B1N000-3D0E

GENERAL

1.

1.1 General
The G1216 is a very thin LCD module on whic h a f ul l-dot matrix LCD panel and a CMOS IC driver are

integrated. The LCD panel used here featur es wide viewing angle and high contr ast. This full dot
configuration allo ws a wide variet y of patterns to be disp layed depending u pon the input data. The
display position is the intersection point of the matrix transparent electrodes. This prevents displa y
distortion and displacem ent. Incorporating a display RAM and a disp lay timing signal generator into
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 interfac e



Instructions:
Display Data Read/Write, Display ON/OFF, Display Start Line, X-Address (Page) Set, Y- Address
Set, and Status Read.



Three types of power supply: VDD= +5 V, VLC , LEDA (LED anode)



Transflective, 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



A built-in LED backlight (color: yellow-green)

- 1 -

1.3 Absolute Maximum Ratings (excluding LED backlight)

Item Symbol Conditions Min. Max. Unit

AN.No.G1216B1N000-3D0E

Vss = 0 V

Power supply

voltage

Input voltage

Operating

temperature

Storage

temperature

Storage

humidity

V

DD

V

LC

V

IN

T

opr

T

stg




Ta = 25C

5010%RH

65%RH





48 hrs



1000 hrs



1.4 Mechanical Characteristics

Item Standard

Dot configuration 12864 dot
Module dimensions ( H  V  T ) [ mm ] 75.0 52.7  8.9
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 ] 45 max.

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

V

-

DD

-0.3

-20

-30

+20
+20

0.3

-19.0

V

V

7.0

DD

DD

+70
+80

+85
+65

+ 0.3

+ 0.3

V
V

V

C



C



%RH
%RH

1.5 Electrical Characteristics (excluding LED backlight)

V

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

DD

Item Symbol UnitMin. Typ. Max.

Input

voltage

Input

voltage

Output

voltage

Power supply voltage

Current

consumption

Frame fr equency

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.

High

1

Low
High

2

Low
High

3

Low

4

V

V
V
V
V
V
V
V

f

IHC

ILC

IHT

ILT

OH

DD

I

DD

I

LC

FRM

OL

LC

Conditions






=- 205 A

I

OH

= 1.6 mA

I

OL




=5 V, Ta = 25C

V

DD

= 8.0

V

LC



0.7
0

2.0
0

2.4



4.75

-12.0





V

DD








5.00

-8.0

2.0

1.8

71.4

V

0.3V
V

0.8



0.4

5.25

-3.0

3.0

3.0



DD

DD

DD

V
V
V
V
V
V
V

V
mA
mA

H

Z

- 2 -

1.6 Optical Characteristics

Vopr=14.0 V

Vopr=13.0 V

off

Vopr=13.0 V

1

θ2θ

θ2θ

θ

∅

AN.No.G1216B1N000-3D0E

1/64 duty, 1/9 bias, f

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

FRM

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



15
30



50
70

Viewing angle

θ
θ

θ2-θ

θ
θ

θ2-θ

1
2

1
1
2

C ≥ 2.0
∅ = 0°
Vopr=13.0 V

C ≥ 2.0
∅ = 270°
Vopr=13.0 V

25°C

25°C

θ = 0°

Contrast

Response time

∅ = 0°

t
t
t

θ = 0°

on

∅ = 0°

off

θ = 0°

on

∅ = 0°

t

25°CC

25°C

-20°C






2300

Measuring instrument : Canon illuminometer LC-3S

Note 1: Definition of angle θ and

Note 2: Definition of viewing angles θ 1

and θ 2








40
100
630

-15




-20




3.52.5

100

200
1000
3500

Unit

Degree



ms

Refer to notes

1 and 2

Note 3

Note 4

Light
(reflective LCD)

Y’(∅=180°)

X’

Z (θ=0°)

Z’

Sensor

Cmax.

Contrast C

1

2.0

LCD panel

X (∅=90°)

1

∅

Y (∅=0°)
(θ=90°)

Remark: The optimum viewing angle by visual

inspection and angle θ at Cmax do

Viewing angle

not always match.

AN.No.G1216B1N000-3D0E

t

t

Selected status

Non-selected status

°

C

−

30 to +80

T

stg

Storage temp. range

−

Note 3: Definition of contrast (C)

C =

Brightness
(reflection)

Brightness of non-selected dot (reflection) B
Brightness of selected dot (reflection) B1

(%)

0

Operating
voltage(V)

1.7 LC panel life time

Item Unit

Note 4: Definition of response time

V

100%

opr

1/f

FRM

(display ON)

90%

on

(display OFF)

10%

off

(V)

2

Brightness for selected

B

2

B

1

dot

Brightness
curve for non­selected dot

Non-selected
status

Light

Brightness

Dark

V

: Operating voltage ton: Response time (rise)

opr

f

: Frame frequency tof: Response time (fall)

FRM

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

Conditions Standard

Life time

1

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

Contrast reduces to 30% of the initial value.

ž

Current consumption becomes three times the initial value.

ž

Orientation deteriorates significantly.

ž

The display malfunctions.

ž

1

25°C±10°C
<65%RH

1.8 LED backlight characteristics
(1) Absolute maximum ratings

Item Symbol Standard Unit

DC forward current

DC reverse voltage

Allowable dissipation

Operating temp. range

I

F

V

R

P

D

T

opr

200*

8

860

20 to +70

−

mA

V

mW

C

°

* Forward current reduction characteristics: The absolute maximum rating of the forward current

varies depending on ambient temperature.

hrs100,000 or more

IF ( mA )

200

50

20

70

Ta (°C)25

(2) Electrical and optical characteristics

1

AN.No.G1216B1N000-3D0E

Ta = 25°C

Item

Forward voltage
Reverse current

Symbol

V

F

I

R

Meas. condition Max.Typ.Min. Unit

IF=90 mA

VR=8 V

(3) LED backlight connection diagram

(4) Brightness (panel upper side)

Item

Surface brightness

(Center of LCD panel)

Symbol

B

P

Measurement conditions and a measuring instrument are:

Ta=25°C±3°C

ž

30 to 85%RH

ž

IF= 90 mA

ž

f

=71.4 Hz

ž

FRM

VLC: Optimum LC drive voltage

ž

Display OFF (Entire display data=“L”)

ž

Measured 30 minutes after LED lights

ž

Measuring instrument: BM - 7 (TOPCON)

ž

3.8



4.1



4.4

0.9

V

mA

LEDA

Number of LED
chips=20

LEDC

Max.Typ.Min. Unit

2.01.0



nit

(5) Life time

Item Measurement conditions Standard Unit

Life time

1

Ta=25°C±10°C
IF=90 mA

hrs50,000 or more

Definition of life time: The time until the brightness decreases to one half the initial

brightness.

1.9 Dimensions

1

AN.No.G1216B1N000-3D0E

Unit: mm

General dimensional tolerance:±0.5

I/O terminal functions

Sym.No.

V

1

V

2

V

3

DB

4

DB

5

DB

6

DB

7

DB

8

DB

9

10

F

DB

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

GND

Power supply voltage: +5.0 V

DD

GND: 0 V

SS

LC drive voltage

LC

Data bus (LSB)

0

Data bus

1

Data bus

2

Data bus

3

Data bus

4

Data bus

5

Data bus

6

Functions

Figure 1 Dimensions

11
12
13
14
15
16
17
18
19
20

DB
CS1
CS2

RST
R/W

D/I

E

F

GND

LEDA
LEDC

Data bus (MSB)

7

Chip select (1)
Chip select (2)
Reset
Read/Write
Data/Instruction
Enable
Frame ground
LED anode
LED cathode

FunctionsSym.No.

1